Citizens Community Bancorp (CZWI) 10-K 13 Dec 17 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Sep. 30, 2017	Dec. 13, 2017	Mar. 31, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	Citizens Community Bancorp Inc.
Entity Central Index Key	1,367,859
Document Type	10-K
Document Period End Date	Sep. 30, 2017
Amendment Flag	false
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--09-30
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 66,687,156
Entity Common Stock, Shares Outstanding		5,883,656

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Assets
Cash and cash equivalents	$ 41,677	$ 10,046
Other interest-bearing deposits	8,148	745
Securities available for sale AFS	95,883	80,123
Securities held to maturity HTM	5,453	6,669
Non-marketable equity securities, at cost	7,292	5,034
Loans receivable	732,995	574,439
Allowance for loan losses	(5,942)	(6,068)
Loans receivable, net	727,053	568,371
Loans held for sale	2,334	0
Mortgage servicing rights	1,886	0
Office properties and equipment, net	9,645	5,338
Accrued interest receivable	3,291	2,032
Intangible assets	5,449	872
Goodwill	10,444	4,663
Foreclosed and repossessed assets, net	6,017	776
Other assets	16,092	11,196
TOTAL ASSETS	940,664	695,865
Liabilities:
Deposits	742,504	557,677
Federal Home Loan Bank advances	90,000	59,291
Other borrowings	30,319	11,000
Other liabilities	4,358	3,353
Total liabilities	867,181	631,321
Stockholders’ equity:
Common stock—$0.01 par value, authorized 30,000,000; 5,888,816 and 5,260,098 shares issued and outstanding, respectively	59	53
Additional paid-in capital	63,383	54,963
Retained earnings	10,764	9,107
Unearned deferred compensation	(456)	(193)
Accumulated other comprehensive gain (loss)	(267)	614
Total stockholders’ equity	73,483	64,544
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 940,664	$ 695,865

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2017	Sep. 30, 2016
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	5,888,816	5,260,098
Common stock, shares outstanding	5,888,816	5,260,098

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Interest and dividend income:
Interest and fees on loans	$ 25,826	$ 23,407
Interest on investments	2,052	1,677
Total interest and dividend income	27,878	25,084
Interest expense:
Interest on deposits	4,299	4,200
Interest on FHLB borrowed funds	717	664
Interest on other borrowed funds	594	143
Total interest expense	5,610	5,007
Net interest income	22,268	20,077
Provision for loan losses	319	75
Net interest income after provision for loan losses	21,949	20,002
Non-interest income:
Net gains on sale of available for sale securities	111	63
Service charges on deposit accounts	1,433	1,627
Loan fees and service charges	1,540	1,296
Other	1,667	929
Total non-interest income	4,751	3,915
Non-interest expense:
Compensation and benefits	10,862	9,866
Occupancy	2,780	2,826
Office	1,340	1,225
Data processing	2,052	1,802
Amortization of intangible assets	219	111
Amortization of mortgage servicing rights	39	0
Advertising, marketing and public relations	545	701
FDIC premium assessment	300	394
Professional services	2,078	1,368
Other	2,663	1,765
Total non-interest expense	22,878	20,058
Income before provision for income tax	3,822	3,859
Provision (benefit) for income taxes	1,323	1,286
Net income attributable to common stockholders	$ 2,499	$ 2,573
Per share information:
Basic earnings (in dollars per share)	$ 0.47	$ 0.49
Diluted earnings (in dollars per share)	0.46	0.49
Cash dividends paid (in dollars per share)	$ 0.16	$ 0.12

Consolidated Statements of Othe

Consolidated Statements of Other Comprehensive (Loss) Income - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income attributable to common stockholders	$ 2,499	$ 2,573
Securities available for sale
Net unrealized (losses) gains arising during period	(948)	825
Reclassification adjustment for (losses) gains included in net income	67	38
Unrealized (losses) gains on securities	(881)	863
Defined benefit plans:
Amortization of unrecognized prior service costs and net losses	0	(35)
Total other comprehensive (loss) income, net of tax	(881)	828
Comprehensive income	$ 1,618	$ 3,401

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Unearned Deferred Compensation	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Sep. 30, 2015	$ 61,453	$ 52	$ 54,740	$ 7,163	$ (288)	$ (214)
Beginning balance (in shares) at Sep. 30, 2015		5,232,579
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to common shareholders	2,573			2,573
Other comprehensive loss, net of tax	828					828
Forfeiture of unvested shares (in shares)		(22,162)
Forfeiture of unvested shares	0		(176)		176
Surrender of vested shares (in shares)		(5,425)
Surrender of vested shares	(50)		(50)
Common stock awarded under recognition and retention plan (in shares)		11,591
Common stock awarded under recognition and retention plan	$ 0		127		(127)
Common stock options exercised (in shares)	43,515	43,515
Common stock options exercised	$ 290	$ 1	289
Stock option expense	33		33
Amortization of restricted stock	46				46
Cash dividends	(629)			(629)
Ending balance (in shares) at Sep. 30, 2016		5,260,098
Ending balance at Sep. 30, 2016	64,544	$ 53	54,963	9,107	(193)	614
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to common shareholders	2,499			2,499
Other comprehensive loss, net of tax	(881)					(881)
Forfeiture of unvested shares	0
Surrender of vested shares (in shares)		(1,741)
Surrender of vested shares	(22)		(22)
Common stock awarded under recognition and retention plan (in shares)		25,569
Common stock awarded under recognition and retention plan	$ 0		346		(346)
Common stock options exercised (in shares)	14,100	14,100
Common stock options exercised	$ 114	$ 0	114
Common stock repurchased (in shares)		(1,428)
Common stock repurchased	(16)		(16)
Shares issued to WFC shareholders (in shares)		592,218
Shares issued to WFC shareholders	7,973	$ 6	7,967
Stock option expense	31		31
Amortization of restricted stock	83				83
Cash dividends	(842)			(842)
Ending balance (in shares) at Sep. 30, 2017		5,888,816
Ending balance at Sep. 30, 2017	$ 73,483	$ 59	$ 63,383	$ 10,764	$ (456)	$ (267)

Consolidated Statements of Cha7

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Statement of Stockholders' Equity [Abstract]
Cash dividends paid (in dollars per share)	$ 0.16	$ 0.12

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income attributable to common stockholders	$ 2,499	$ 2,573
Adjustments to reconcile net income to net cash provided by operating activities:
Net amortization of premium/discount on securities	795	1,135
Depreciation	864	1,071
Provision for loan losses	319	75
Net realized gain on sale of securities	(111)	(63)
Amortization of core deposit intangible	219	111
Amortization of restricted stock	83	46
Stock based compensation expense	31	33
Loss on sale of office properties	181	0
Provision for deferred income taxes	1,950	449
Net losses (gains) from disposals of foreclosed and repossessed assets	32	(70)
Provision for valuation allowance on foreclosed acquired properties	0	42
(Increase) decrease in accrued interest receivable and other assets	(39)	698
(Decrease) in other liabilities	(2,902)	(402)
Total adjustments	1,422	3,125
Net cash provided by operating activities	3,921	5,698
Cash flows from investing activities:
Purchase of investment securities	(34,868)	(19,665)
Purchase of bank owned life insurance	(3,500)	0
Net decrease (increase) in interest-bearing deposits	968	7,241
Proceeds from sale of securities available for sale	38,051	21,712
Principal payments on investment securities	9,597	16,183
Proceeds from sale of non-marketable equity securities	323	0
Purchase of non-marketable equity securities	(707)	(3)
Proceeds from sale of foreclosed properties	1,111	1,261
Net decrease in loans	20,366	2,846
Net capital expenditures	(609)	(961)
Net cash (disbursed) received in business combinations	(18,968)	20,658
Proceeds from disposal of office properties and equipment	21	0
Net cash provided by investing activities	11,785	49,272
Cash flows from financing activities:
Net increase (decrease) in Federal Home Loan Bank advances	30,709	(2,600)
Increase in other borrowings to fund business combination, net of origination costs	19,625	11,000
Principal payment reduction to other borrowings	(306)	0
Net (decrease) increase in deposits	(33,078)	(76,772)
Capitalized equity acquisition costs	(259)	0
Repurchase shares of common stock	(16)
Surrender of restricted shares of common stock	(22)	(50)
Exercise of common stock options	114	290
Termination of director retirement plan/supplemental executive retirement plan	0	(35)
Cash dividends paid	(842)	(629)
Net cash provided by (used in) financing activities	15,925	(68,796)
Net (decrease) increase in cash and cash equivalents	31,631	(13,826)
Cash and cash equivalents at beginning of period	10,046	23,872
Cash and cash equivalents at end of period	41,677	10,046
Cash paid during the year for:
Interest on deposits	4,199	4,091
Interest on borrowings	1,099	759
Income taxes	1,618	1,484
Supplemental noncash disclosure:
Transfers from loans receivable to foreclosed and repossessed assets	791	630
Fair value of assets acquired, net of cash and cash equivalents	256,865	167,469
Fair value of liabilities assumed, net of cash and cash equivalents	$ 221,812	$ 154,250

Nature of Business and Summary

Nature of Business and Summary of Significant Accounting Policies	12 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The financial statements of Citizens Community Federal N.A. (the “Bank”) included herein have been included by its parent company, Citizens Community Bancorp, Inc. (the “Company”) pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). As used in this annual report, the terms “we”, “us”, “our”, and “Citizens Community Bancorp, Inc.” mean the Company and its wholly owned subsidiary, the Bank, unless the context indicates other meaning. The Bank is a national banking association (a "National Bank") and operates under the title of Citizens Community Federal National Association ("Citizens Community Federal N.A."). The Company is a bank holding company, supervised by the Federal Reserve Bank of Minneapolis (the "FRB"), and operates under the title of Citizens Community Bancorp, Inc. The U.S. Office of the Comptroller of the Currency (the "OCC"), is the primary federal regulator for the Bank. The consolidated income of the Company is principally derived from the income of the Bank, the Company’s wholly owned subsidiary, serving customers in Wisconsin, Minnesota and Michigan through 23 branch locations. Its primary markets include the Chippewa Valley Region in Wisconsin, the Twin Cities and Mankato Minnesota, and various rural communities around these areas. The Bank offers traditional community banking services to businesses, Agricultural operators and consumers, including one-to-four family residential mortgages. On August 18, 2017, the Company completed its merger with Wells Financial Corporation ("WFC"), pursuant to the merger agreement, dated March 17, 2017. At that time, the separate corporate existence of WFC ceased, and the Company survived the merger. In connection with the merger, the Company caused Wells Federal Bank to merge with and into the Bank, with the Bank surviving the merger. The merger expands the Bank's market share in Mankato and southern Minnesota, and added nine branch locations ( seven locations after Mid-December) along with expanded services through Wells Insurance Agency, Inc.. For further disclosure and discussion, see Note 2, "Acquisitions". We intend to close two of the acquired WFC branches in December 2017. We intend to continue to review our branch network to deploy assets and capital in growth markets and exit markets where we believe have limited growth opportunities. Through all of our branch locations in Wisconsin, Minnesota and Michigan, we provide a variety of commercial and consumer banking products and services to customers, including online and mobile banking options. The Bank is subject to competition from other financial institutions and non-financial institutions providing financial products. Additionally, the Bank is subject to the regulations of certain regulatory agencies and undergoes periodic examination by those regulatory agencies. In preparing these consolidated financial statements, we evaluated the events and transactions occurring subsequent to the balance sheet date of September 30, 2017 through the date on which the consolidated financial statements were available to be issued for items that should potentially be recognized or disclosed in these consolidated financial statements. As of December 13, 2017 , there were no subsequent events which required recognition or disclosure. Unless otherwise stated, all monetary amounts in these Notes to Consolidated Financial Statements, other than share, per share and capital ratio amounts, are stated in thousands. Principles of Consolidation – The accompanying consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, Citizens Community Federal N.A. All significant inter-company accounts and transactions have been eliminated. Use of Estimates— Preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying disclosures. These estimates are based on management’s best knowledge of current events and actions the Company may undertake in the future. Estimates are used in accounting for, among other items, fair value of financial instruments, the allowance for loan losses, mortgage servicing rights, foreclosed and repossessed assets, valuation of acquired intangible assets, useful lives for depreciation and amortization, indefinite-lived intangible assets. valuation of goodwill and long-lived assets, stock based compensation, deferred tax assets, uncertain income tax positions and contingencies. Management does not anticipate any material changes to estimates made herein in the near term. Factors that may cause sensitivity to the aforementioned estimates include but are not limited to: those items described under the caption “Risk Factors” in Item 1A of the accompanying annual report on Form 10-K for the year ended September 30, 2017 and external market factors such as market interest rates and employment rates, changes to operating policies and procedures, and changes in applicable banking regulations. Actual results may ultimately differ from estimates, although management does not generally believe such differences would materially affect the consolidated financial statements in any individual reporting period. Cash and Cash Equivalents— For purposes of reporting cash flows in the consolidated financial statements, cash and cash equivalents include cash, due from banks, and interest bearing deposits with original maturities of three months or less . Investment Securities; Held to Maturity and Available for Sale – Management determines the appropriate classification of investment securities at the time of purchase and reevaluates such designation as of the date of each balance sheet. Securities are classified as held to maturity when the Company has the positive intent and ability to hold the securities to maturity. Held to maturity securities are stated at amortized cost. Investment securities not classified as held to maturity are classified as available for sale. Available for sale securities are stated at fair value, with unrealized holding gains and losses being reported in other comprehensive income (loss), net of tax. Unrealized losses deemed other-than-temporary due to credit issues are reported in the Company’s net income in the period in which the losses arise. Interest income includes amortization of purchase premium or accretion of purchase discount. Amortization of premiums and accretion of discounts are recognized in interest income using the interest method over the estimated lives of the securities. The Company evaluates securities for other-than-temporary impairment at least on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. As part of such monitoring, the credit quality of individual securities and their issuer is assessed. Significant inputs used to measure the amount of other-than-temporary impairment related to credit loss include, but are not limited to; the Company's intent and ability to sell the debt security prior to recovery, that it is more likely than not that the Company will not sell the security prior to recovery, default and delinquency rates of the underlying collateral, remaining credit support, and historical loss severities. Adjustments to market value of available for sale securities that are considered temporary are recorded in other comprehensive income or loss as separate components of stockholders' equity, net of tax. If the unrealized loss of a security is identified as other-than-temporary based on information available, such as the decline in the creditworthiness of the issuer, external market ratings, or the anticipated or realized elimination of associated dividends, such impairments are further analyzed to determine if credit loss exists. If there is a credit loss, it will be recorded in the Company's consolidated statement of operations. Non-credit components of the unrealized losses on available for sale securities will continue to be recognized in other comprehensive income (loss), net of tax. Loans – Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at the principal balance outstanding, net of unearned interest, and net of deferred loan fees and costs. Interest income is accrued on the unpaid principal balance of these loans. Loan origination fees, net of certain direct origination costs, are deferred and recognized in interest income using the interest method without anticipating prepayments. Delinquency fees are recognized into income when chargeable, assuming collection is reasonably insured. Interest income on commercial, mortgage and consumer loans is discontinued according to the following schedules: • Commercial/agricultural real estate loans past due 90 days or more; • Commercial/agricultural non-real estate loans past due 90 days or more; • Closed ended consumer non-real estate loans past due 120 days or more; and • Residential real estate loans and open ended consumer non-real estate loans past due 180 days or more. Past due status is based on the contractual terms of the loan. In all cases, loans are placed on nonaccrual status or charged off at an earlier date if collection of principal or interest is considered doubtful. All interest accrued but not received for a loan placed on nonaccrual status is reversed against interest income. Interest received on such loans is accounted for on the cash basis or cost recovery method until qualifying for return to accrual status. Loans are returned to accrual status when payments are made that bring the loan account current with the contractual term of the loan and a six month payment history has been established. Interest on impaired loans considered troubled debt restructurings (“TDRs”) or substandard, less than 90 days delinquent, is recognized as income as it accrues based on the revised terms of the loan over an established period of continued payment. Substandard loans, as defined by the OCC, our primary banking regulator, are loans that are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Residential real estate loans and open ended consumer non-real estate loans are charged off to estimated net realizable value less estimated selling costs at the earlier of when (a) the loan is deemed by management to be uncollectible, or (b) the loan becomes past due 180 days or more. Closed ended consumer non-real estate loans are charged off to net realizable value at the earlier of when (a) the loan is deemed by management to be uncollectible, or (b) the loan becomes past due 120 days or more. Commercial/agricultural real estate and non-real estate loans are charged off to net realizable value at the earlier of when (a) the loan is deemed by management to be uncollectible, or (b) the loan becomes past due 90 days or more. Allowance for Loan Losses – The allowance for loan losses (“ALL”) is a valuation allowance for probable and inherent credit losses in our loan portfolio. Loan losses are charged against the ALL when management believes that the collectability of a loan balance is unlikely. Subsequent recoveries, if any, are credited to the ALL. Management estimates the required ALL balance taking into account the following factors: past loan loss experience; the nature, volume and composition of our loan portfolio; known and inherent risks in our portfolio; information about specific borrowers’ ability to repay; estimated collateral values; current economic conditions; and other relevant factors determined by management. The ALL consists of specific and general components. The specific component relates to loans that are individually classified as impaired. The general component covers non-impaired loans and is based on historical loss experience adjusted for certain qualitative factors. The entire ALL balance is available for any loan that, in management’s judgment, should be charged off. A loan is impaired when full payment under the loan terms is not expected. Impaired loans consist of all TDRs, as well as individual substandard loans not considered a TDR, when full payment under the loan terms is not expected. All TDRs are individually evaluated for impairment. See Note 4, “Loans, Allowance for Loan Losses and Impaired Loans” for more information on what we consider to be a TDR. For TDR's or substandard loans deemed to be impaired, a specific ALL allocation may be established so that the loan is reported, net, at the lower of (a) its outstanding principal balance; (b) the present value of the loan's estimated future cash flows using the loan’s existing rate; or (c) at the fair value of any loan collateral, less estimated disposal costs, if repayment is expected solely from the underlying collateral of the loan. For TDRs less than 90+ days past due, and certain substandard loans that are less than 90+ days delinquent, the likelihood of the loan migrating to over 90 days past due is also taken into account when determining the specific ALL allocation for these particular loans. Large groups of smaller balance homogeneous loans, such as non-TDR commercial, consumer and residential real estate loans, are collectively evaluated for ALL purposes, and accordingly, are not separately identified for ALL disclosures. Acquired Loans— Loans acquired in connection with acquisitions are recorded at their acquisition-date fair value with no carryover of related allowance for credit losses. Any allowance for loan loss on these pools reflect only losses incurred after the acquisition (meaning the present value of all cash flows expected at acquisition that ultimately are not to be received). Determining the fair value of the acquired loans involves estimating the principal and interest cash flows expected to be collected on the loans and discounting those cash flows at a market rate of interest. Management considers a number of factors in evaluating the acquisition-date fair value including the remaining life of the acquired loans, delinquency status, estimated prepayments, payment options and other loan features, internal risk grade, estimated value of the underlying collateral and interest rate environment. Acquired loans that met the criteria for nonaccrual of interest prior to the acquisition may be considered performing upon acquisition, regardless of whether the customer is contractually delinquent, if we can reasonably estimate the timing and amount of the expected cash flows on such loans and if we expect to fully collect the new carrying value of the loans. As such, we may no longer consider the loan to be nonaccrual or nonperforming and may accrue interest on these loans, including the impact of any accretable yield. Loans acquired with deteriorated credit quality are accounted for in accordance with Accounting Standards Codification (“ASC”) 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality (ASC 310-30) if, at acquisition, the loans have evidence of credit quality deterioration since origination and it is probable that all contractually required payments will not be collected. At acquisition, the Company considers several factors as indicators that an acquired loan has evidence of deterioration in credit quality. These factors include loans 90 days or more past due, loans with an internal risk grade of substandard or below, loans classified as non-accrual by the acquired institution, and loans that have been previously modified in a troubled debt restructuring. Under the ASC 310-30 model, the excess of cash flows expected to be collected at acquisition over recorded fair value is referred to as the accretable yield and is the interest component of expected cash flow. The accretable yield is recognized into income over the remaining life of the loan if the timing and/or amount of cash flows expected to be collected can be reasonably estimated (the accretion method). If the timing or amount of cash flows expected to be collected cannot be reasonably estimated, the cost recovery method of income recognition is used. The difference between the loan’s total scheduled principal and interest payments over all cash flows expected to be collected at acquisition, considering the impact of prepayments, is referred to as the non-accretable difference. The non-accretable difference represents contractually required principal and interest payments which the Company does not expect to collect. Over the life of the loan, management continues to estimate cash flows expected to be collected. Decreases in expected cash flows are recognized as impairments through a charge to the provision for loan losses resulting in an increase in the allowance for loan losses. Subsequent improvements in cash flows result in first, reversal of existing valuation allowances recognized subsequent to acquisition, if any, and next, an increase in the amount of accretable yield to be subsequently recognized in interest income on a prospective basis over the loan’s remaining life. Acquired loans that were not individually determined to be purchased with deteriorated credit quality are accounted for in accordance with ASC 310-20, Nonrefundable Fees and Other Costs (ASC 310-20), whereby the premium or discount derived from the fair market value adjustment, on a loan-by-loan or pooled basis, is recognized into interest income on a level yield basis over the remaining expected life of the loan or pool. Loans Held for Sale — Loans held for sale are those loans the Company has the intent to sell in the foreseeable future. They are carried at the lower of aggregate cost or fair value. Gains and losses on sales of loans are recognized at settlement dates, and are determined by the difference between the sales proceeds and the carrying value of the loans after allocating costs to servicing rights retained. All sales are made without recourse. Interest rate lock commitments on mortgage loans to be funded and sold are valued at fair value, and are included in other assets or liabilities, if material. Mortgage Servicing Rights— Mortgage servicing rights ("MSR") assets initially arose as a result of the WFC merger. WFC had retained the right to service certain loans sold in the secondary market. The Company continues to sell loans to investors in the secondary market and generally retains the rights to service mortgage loans sold to others. MSR assets are initially measured at fair value; assessed at least annually for impairment; carried at the lower of the initial capitalized amount, net of accumulated amortization, or estimated fair value. MSR assets are amortized in proportion to and over the period of estimated net servicing income, with the amortization recorded in non-interest expense in the consolidated statement of operations. The valuation of MSRs and related amortization thereon are based on numerous factors, assumptions and judgments, such as those for: changes in the mix of loans, interest rates, prepayment speeds, and default rates. Changes in these factors, assumptions and judgments may have a material effect on the valuation and amortization of MSRs. Although management believes that the assumptions used to evaluate the MSRs for impairment are reasonable, future adjustment may be necessary if future economic conditions differ substantially from the economic assumptions used to determine the value of MSRs. Non-marketable Equity Securities — Non-marketable equity securities are comprised of Federal Home Loan Bank (FHLB) stock and Federal Reserve Bank (FRB) stock, and are carried at cost. The Bank is a member of the FHLB system. Members are required to own a certain amount of FHLB stock based on the Bank’s level of borrowings from the FHLB and other factors, and may invest in additional amounts of FHLB stock. FHLB stock is carried at cost, classified as a restricted security, and periodically evaluated for impairment based on the ultimate recovery of par value. The determination of whether a decline affects the ultimate recovery is influenced by criteria such as: (1) the significance of the decline in net assets of the FHLB as compared to the capital stock amount and length of time a decline has persisted; (2) the impact of legislative and regulatory changes on the FHLB; and (3) the liquidity position of the FHLB. Cash dividends are reported as income. FHLB stock is evaluated quarterly for impairment. Quarterly cash dividends are paid on FHLB stock owned by members as a condition for required membership and also paid on stock owned by members based on activity. The following table presents the membership and activity stock quarterly cash dividend annualized rates paid during fiscal 2017 : Annualized Dividend Rate Quarterly Dividend Payment Date Membership Stock Activity Stock November 2016 0.60% 2.80% February 2017 0.85% 3.00% May 2017 1.05% 3.15% August 2017 1.25% 3.30% Based on management’s quarterly evaluation, no impairment has been recorded on these securities. As a National Banking Association, the Bank must be a member of the Federal Reserve system. Each member bank is required to subscribe to Federal Reserve Stock in an amount equal to 6 percent of its capital and surplus. Although the par value of the stock is $100 per share, banks (including the Bank) pay only $50 per share at the time of purchase, with the understanding that the other half of the subscription amount is subject to call at any time. Dividends are paid at the statutory rate of 6 percent per annum, or $1.50 per share semi-annually on the last business day of June and December. Foreclosed and Repossessed Assets, net – Assets acquired through foreclosure or repossession are initially recorded at fair value, less estimated costs to sell, which establishes a new cost basis. If the fair value declines subsequent to foreclosure or repossession, a valuation allowance is recorded through expense. Costs incurred after acquisition are expensed and are included in non-interest expense, other in the Consolidated Statements of Operations. Transfers of financial assets— Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the entity, (2) the transferee obtains the right, free of conditions that constrain it from taking advantage of that right, to pledge or exchange the transferred assets, and (3) the entity does not maintain effective control over the transferred assets through an agreement to repurchase them before maturity. Goodwill and other intangible assets— The Company accounts for goodwill and other intangible assets in accordance with ASC Topic 350, "Intangibles - Goodwill and Other." The Company records the excess of the cost of acquired entities over the fair value of identifiable tangible and intangible assets acquired, less liabilities assumed, as goodwill. The Company amortizes acquired intangible assets with definite useful economic lives over their useful economic lives utilizing the straight-line method. On a periodic basis, management assesses whether events or changes in circumstances indicate that the carrying amounts of the intangible assets may be impaired. The Company does not amortize goodwill and any acquired intangible asset with an indefinite useful economic life, but reviews them for impairment at a reporting unit level on an annual basis, or when events or changes in circumstances indicate that the carrying amounts may be impaired. A reporting unit is defined as any distinct, separately identifiable component of the Company’s one operating segment for which complete, discrete financial information is available and reviewed regularly by the segment’s management. The Company has one reporting unit as of September 30, 2017 which is related to its banking activities. The Company has performed the required goodwill impairment test and has determined that goodwill was not impaired as of September 30, 2017. Office Properties and Equipment— Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation. Maintenance and repair costs are charged to expense as incurred. Gains or losses on disposition of office properties and equipment are reflected in income. Buildings and related components are depreciated using the straight-line method with useful lives ranging from 10 to 40 years. Furniture, fixtures and equipment are depreciated using the straight-line (or accelerated) method with useful lives ranging from 3 to 10 years. Leasehold improvements are depreciated using the straight-line (or accelerated) method with useful lives based on the lesser of (a) the estimated life of the lease, or (b) the estimated useful life of the leasehold improvement. Interest Bearing Deposits— Other interest bearing deposits are certificate of deposit investments made by the Bank with other financial institutions that are carried at cost. The weighted average months to maturity of the interest bearing deposits is 21.89 months . Balances over $250 in those institutions are not insured by the FDIC and therefore pose a potential risk in the event the institution were to fail. As of September 30, 2017 , there was one certificate of deposit with a balance of $251 . As of September 30, 2016 , there were no uninsured deposits. Debt and equity issuance costs— Debt issuance costs, which consist primarily of fees paid to note lenders, are deferred and included in other borrowings in the consolidated balance sheet. Debt issuance costs are amortized over the contractual term of the corresponding debt, as a component of interest expense on other borrowed funds in the consolidated statement of operations. Specific costs associated with the issuance of shares of the Company's common stock are recorded in equity, as additional paid in capital, on the consolidated balance sheet, in the period of the share issuance. Advertising, Marketing and Public Relations Expense— The Company expenses all advertising, marketing and public relations costs as they are incurred. Total costs for the years ended September 30, 2017 and 2016 were $ 545 and $ 701 , respectively. Income Taxes – The Company accounts for income taxes in accordance with the Financial Accounting Standards Board (FASB) Accounting Standards Codification (“ASC”) Topic 740, “Income Taxes.” Under this guidance, deferred taxes are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates that will apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized as income or expense in the period that includes the enactment date. See Note 14, "Income Taxes" for details on the Company’s income taxes. The Company regularly reviews the carrying amount of its net deferred tax assets to determine if the establishment of a valuation allowance is necessary. If based on the available evidence, it is more likely than not that all or a portion of the Company’s net deferred tax assets will not be realized in future periods, a deferred tax valuation allowance would be established. Consideration is given to various positive and negative factors that could affect the realization of the deferred tax assets. In evaluating this available evidence, management considers, among other things, historical performance, expectations of future earnings, the ability to carry back losses to recoup taxes previously paid, the length of statutory carry forward periods, any experience with utilization of operating loss and tax credit carry forwards not expiring, tax planning strategies and timing of reversals of temporary differences. Significant judgment is required in assessing future earnings trends and the timing of reversals of temporary differences. Accordingly, the Company’s evaluation is based on current tax laws as well as management’s expectations of future performance. Revenue Recognition - The Company recognizes revenue in the consolidated statements of operations as it is earned and when collectability is reasonably assured. The primary source of revenue is interest income from interest earning assets, which is recognized on the accrual basis of accounting using the effective interest method. The recognition of revenues from interest earning assets is based upon formulas from underlying loan agreements, securities contracts or other similar contracts. Non-interest income is recognized on the accrual basis of accounting as services are provided or as transactions occur. Non-interest income includes fees from brokerage and advisory service, deposit accounts, merchant services, ATM and debit card fees, mortgage banking activities, and other miscellaneous services and transactions. Commission revenue is recognized as of the effective date of the insurance policy or the date the customer is billed, whichever is later. The Company also receives contingent commissions from insurance companies which are based on the overall profitability of their relationship based primarily on the loss experience of the insurance placed by the Company. Contingent commissions from insurance companies are recognized when determinable. Commission revenue is included in other non-interest income in the consolidated statement of operations. Earnings Per Share – Basic earnings per common share is net income or loss divided by the weighted average number of common shares outstanding during the period. Diluted earnings per common share includes the dilutive effect of additional potential common shares issuable during the period, consisting of stock options outstanding under the Company’s stock incentive plans that have an exercise price that is less than the Company's stock price on the reporting date. Loss Contingencies— Loss contingencies, including claims and legal actions arising in the normal course of business, are recorded as liabilities when the likelihood of loss is probable and an amount of loss can be reasonably estimated. Off-Balance-Sheet Financial Instruments— In the ordinary course of business, the Bank has entered into off-balance sheet financial instruments consisting of commitments to extend credit and commitments under lines of credit arrangements, issued to meet customer financial needs. Such financial instruments are recorded in the financial statements when they become payable. See Note 11, "Commitments and Contingencies" in Notes to Consolidated Financial Statements. Derivatives--Rate-lock Commitments and Forward Sale Agreements — The Company enters into commitments to originate loans, whereby the interest rate on the loan is determined prior to funding (rate-lock commitment). Rate-lock commitments on mortgage loans held for sale are derivative instruments. Derivative instruments are carried on the consolidated balance sheets at fair value, and changes in the fair value thereof are recognized in the consolidated statements of income. The Company originates single-family residential loans for sale, pursuant to programs primarily with the Federal Home Loan Mortgage Corporation (FHLMC) and other similar third parties. In connection with these programs, at the time the Company initially issues a loan commitment, it does not lock in a specific interest rate. At the time the interest rate is locked in by the borrower, the Company concurrently enters into a forward loan sale agreement with the prospective loan purchaser, at a specific price, in order to manage the interest rate risk inherent to the rate-lock commitment. The forward sale agreement also meets the definition of a derivative instrument. Any change in the fair value of the loan commitment after the borrower locks in the interest rate is substantially offset by the corresponding change in the fair value of the forward loan sale agreement related to such loan. The period from the time the borrower locks in the interest rate, to the time the Company funds the loan and sells the loan to a third party, is generally, approximately 60 days. The fair value of each instrument will rise and fall in response to changes in market interest rates, subsequent to the da

Acquisitions

Acquisitions	12 Months Ended
	Sep. 30, 2017
Business Combinations [Abstract]
ACQUISITIONS	ACQUISITIONS Wells Financial Corporation (WFC) On August 18, 2017, the Company completed its merger with Wells Financial Corporation ("WFC"), pursuant to the merger agreement, dated March 17, 2017. At that time, the separate corporate existence of WFC ceased, and the Company survived the merger. In connection with the merger, the Company caused Wells Federal Bank to merge with and into the Bank, with the Bank surviving the merger. Under the terms of the merger agreement, each issued and outstanding share of WFC common stock, $0.10 par value, was converted into the right to receive (i) $ 41.31 in cash, (ii) 0.7598982 shares of the Company's common stock, and (iii) cash in lieu of fractional shares. The aggregate merger consideration paid to WFC shareholders consisted of approximately $32,210 in cash and 592,218 shares of the Company's common stock. To partially fund the cash portion of the merger consideration, the Company incurred $5,000 of senior term debt, and $15,000 of subordinated debt, as discussed in Note 9; Federal Home Loan Bank and Other Borrowings. The merger added $256,473 in assets, $187,079 in loans, $217,905 in deposits, $5,781 in goodwill and $4,178 in core deposit intangible. None of the goodwill is deductible for tax purposes, as the acquisition is accounted for as a tax-free exchange for tax purposes. In connection with the WFC acquisition, we incurred expenses related to (1) accounting, legal and other professional services, (2) systems conversions, and (3) other costs of integrating and conforming acquired operations with and into the Company. These merger-related expenses, that were expensed as incurred, amounted to $1,860 for the year ended September 30, 2017, and were included in non-interest expense on the consolidated statement of operations. Debt origination costs of $380 were deferred and netted against the other borrowings on the consolidated balance sheet, and are being amortized to interest expense on other borrowed funds over the life of the notes, as discussed in Note 9. We also incurred issuance costs related to issuance of common shares of $259 which were charged to additional paid in capital. The acquisition of the net assets of WFC constitutes a business combination as defined by FASB ASC Topic 805, " Business Combinations ." Accordingly, the assets acquired and liabilities assumed are presented at their fair values at acquisition date. Fair values were determined based on the requirements of FASB ASC Topic 820, Fair Value Measurements . In many cases, the determination of these fair values required management to make estimates regarding discount rates, future expected cash flows, market conditions and other future events that are highly subjective in nature and subject to change for a period up to 12 months after the acquisition date. The following pro forma financial information for the periods presented reflects our estimated consolidated pro forma results of operations as if the WFC acquisition occurred on October 1, 2016, not considering potential cost savings and other business synergies we expect to receive as a result of the acquisition: Citizens Community Bancorp, Inc. Wells Financial Corporation Pro Forma Adjustments Pro Forma Combined Year ended September 30, 2017 Revenue (net interest income and non-interest income) $ 27,019 $ 11,758 $ (680 ) $ 38,097 Net income attributable to common stockholders 2,499 508 2,454 5,461 Earnings per share--basic 0.47 0.92 Earnings per share-diluted 0.46 0.91 Year ended September 30, 2016 Revenue (net interest income and non-interest income) 23,992 13,452 (749 ) 36,695 Net income attributable to common stockholders 2,573 2,387 (845 ) 4,115 Earnings per share--basic 0.49 0.71 Earnings per share-diluted 0.49 0.71 The pro forma adjustments reflect (1) additional depreciation and amortization expense related to, and associated tax effects of, the purchase accounting adjustments made to record various items at fair value, (2) additional interest expense on acquisition related debt and (3) elimination of acquisition related costs incurred. The revenue and earnings of WFC since the acquisition date of August 18, 2017 are included in the Company's consolidated statement of operations, and it is not practical to disclose them separately. Community Bank of Northern Wisconsin (CBN) On May 16, 2016, the Company completed the acquisition through merger of CBN, with the Bank surviving the merger. The Merger was consummated pursuant to the terms of the Merger Agreement, dated February 10, 2016, and as amended on May 13, 2016. The Merger expands our presence in our Rice Lake, Wisconsin market with five additional branches. Under the terms of the Merger Agreement, the total purchase price paid in a combination of cash and debt issued by the Company was $17,447 , which represented a $16,762 book value of CBN as of April 30, 2016, less a capital dividend of $4,342 declared by CBN, plus a $5,000 fixed premium and daily interest through May 16, 2016 in the amount of $27 . The Merger added $167,469 in assets, $111,740 in loans, $151,020 in deposits, $4,228 in goodwill, and $607 in a core deposit intangible. Acquisition costs consisting of accounting, legal and other professional fees were approximately $701 through September 30, 2016 and were accrued for in non-interest expense in the consolidated statement of operations. The acquisition of the net assets of CBN constitutes a business combination as defined by FASB ASC Topic 805, " Business Combinations ." Accordingly, the assets acquired and liabilities assumed are presented at their fair values at acquisition date. Fair values were determined based on the requirements of FASB ASC Topic 820, Fair Value Measurements . In many cases, the determination of these fair values required management to make estimates regarding discount rates, future expected cash flows, market conditions and other future events that are highly subjective in nature. The following pro forma financial information for the periods presented reflects our estimated consolidated pro forma results of operations as if the CBN acquisition occurred on October 1, 2015, unadjusted for potential cost savings and other business synergies we expect to receive as a result of the acquisition: Citizens Community Bancorp, Inc. Community Bank of Northern Wisconsin Pro Forma Adjustments Pro Forma Combined Year ended September 30, 2016 Revenue (net interest income and non-interest income) $ 18,566 $ 5,180 $ (532 ) $ 23,214 Net income attributable to common stockholders 2,806 1,418 (623 ) 3,601 Earnings per share--basic 0.54 0.69 Earnings per share-diluted 0.54 0.69 The following table summarizes the amounts recorded on the consolidated balance sheets as of each of the acquisition dates in conjunction with the acquisitions discussed above: Wells Financial Corporation Community Bank of Northern Wisconsin Fair value of consideration paid $ 40,442 $ 17,447 Fair value of identifiable assets acquired: Cash and cash equivalents 4,742 28,104 Other interest bearing deposits 16,871 — Securities 31,758 21,825 Loans 187,079 111,740 Property and equipment 5,011 2,741 Core deposit and other intangible assets 4,178 607 Other assets 6,834 2,452 Total identifiable assets acquired 256,473 167,469 Fair value of liabilities assumed: Deposits 217,905 151,020 Borrowings 3,320 3,000 Other liabilities 587 230 Total liabilities assumed 221,812 154,250 Fair value of net identifiable assets acquired 34,661 13,219 Goodwill recognized $ 5,781 $ 4,228

Fair Value Accounting

Fair Value Accounting	12 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
FAIR VALUE ACCOUNTING	FAIR VALUE ACCOUNTING ASC Topic 820-10, “ Fair Value Measurements and Disclosures ” establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The topic describes three levels of inputs that may be used to measure fair value: Level 1- Quoted prices (unadjusted) for identical assets or liabilities in active markets that the Company has the ability to access as of the measurement date. Level 2- Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3- Significant unobservable inputs that reflect the Company’s assumptions about the factors that market participants would use in pricing an asset or liability. A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input within the valuation hierarchy that is significant to the fair value measurement. The fair value of securities available for sale is determined by obtaining market price quotes from independent third parties wherever such quotes are available (Level 1 inputs); or matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities' relationship to other benchmark quoted securities (Level 2 inputs). Where such quotes are not available, we utilize independent third party valuation analysis to support our own estimates and judgments in determining fair value (Level 3 inputs). Assets Measured on a Recurring Basis The following tables present the financial instruments measured at fair value on a recurring basis as of September 30, 2017 and 2016 . Fair Value Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) September 30, 2017 Investment securities: U.S. government agency obligations $ 18,041 $ — $ 18,041 $ — Obligations of states and political subdivisions 35,795 — 35,795 — Mortgage-backed securities 36,474 — 36,474 — Equity securities 230 — 230 — Corporate debt securities 5,343 — 5,343 — Total $ 95,883 $ — $ 95,883 $ — September 30, 2016 Investment securities: U.S. government agency obligations $ 16,407 $ — $ 16,407 $ — Obligations of states and political subdivisions 34,012 — 34,012 — Mortgage-backed securities 29,247 — 29,247 — Equity securities 81 — 81 — Trust Preferred Securities 376 — — 376 Total $ 80,123 $ — $ 79,747 $ 376 The following table presents additional information about the security available for sale measured at fair value on a recurring basis and for which the Company utilized significant unobservable inputs (Level 3 inputs) to determine fair value for the year ended September 30, 2017 and 2016 : Fair value measurements using significant unobservable inputs (Level 3) Securities available for sale 2017 2016 Balance, beginning of year $ 376 $ — Payments received (500 ) — Total gains or losses (realized/unrealized) Included in earnings 124 — Included in other comprehensive income — — Transfers in and/or out of Level 3 — 376 Balance, end of year $ — $ 376 There were no transfers in or out of Level 1 and Level 2 fair value measurements during the years ended September 30, 2017 and 2016 . The trust preferred security discussed below, which was obtained as part of the CBN acquisition, was the only security transferred into or out of Level 3 during the same periods. There were no losses included in earnings attributable to the change in unrealized gains or losses relating to the available-for-sale securities above with fair value measurements utilizing significant unobservable inputs for the years ended September 30, 2017 and 2016 , respectively. The Level 3 securities at September 30, 2016, consisted of one private placement collateralized debt obligation security, backed by trust preferred securities. The market for this security was not active, and markets for similar securities were equally inactive. The new issue market was also inactive and there were very few market participants willing or able to transact for these securities. In June 2017, this security was called. Assets Measured on a Nonrecurring Basis The following tables present the financial instruments measured at fair value on a nonrecurring basis as of September 30, 2017 and 2016 : Fair Value Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) September 30, 2017 Foreclosed and repossessed assets, net $ 6,017 $ — $ — $ 6,017 Impaired loans with allocated allowances 1,490 — — 1,490 Mortgage servicing rights 1,951 1,951 Total $ 9,458 $ — $ — $ 9,458 September 30, 2016 Foreclosed and repossessed assets, net $ 776 $ — $ — $ 776 Impaired loans with allocated allowances 2,412 — — 2,412 Total $ 3,188 $ — $ — $ 3,188 The fair value of impaired loans referenced above was determined by obtaining independent third party appraisals and/or internally developed collateral valuations to support the Company’s estimates and judgments in determining the fair value of the underlying collateral supporting impaired loans. The fair value of foreclosed and repossessed assets referenced above was determined by obtaining market price valuations from independent third parties wherever such quotes were available for other collateral owned. The Company utilized independent third party appraisals to support the Company’s estimates and judgments in determining fair value for other real estate owned. At September 30, 2017, acquired real estate owned property included $3,094 contract for deed loans paying according to contract terms. The fair value of mortgage servicing rights referenced above was determined based on a third party discounted cash flow analysis utilizing both observable and unobservable inputs. The following table represents additional quantitative information about assets measured at fair value on a recurring and nonrecurring basis and for which we have utilized Level 3 inputs to determine their fair value at September 30, 2017 . Fair Value Valuation Techniques (1) Significant Unobservable Inputs (2) Range September 30, 2017 Foreclosed and repossessed assets, net $ 6,017 Appraisal value Estimated costs to sell 10 - 15% Impaired loans with allocated allowances $ 1,490 Appraisal value Estimated costs to sell 10 - 15% Mortgage servicing rights $ 1,951 Discounted cash flows Discount rates 9.5% - 12.5% September 30, 2016 Foreclosed and repossessed assets, net $ 776 Appraisal value Estimated costs to sell 10 - 15% Impaired loans with allocated allowances $ 2,412 Appraisal value Estimated costs to sell 10 - 15% (1) Fair value is generally determined through independent third-party appraisals of the underlying collateral, which generally includes various level 3 inputs which are not observable. (2) The fair value basis of impaired loans and real estate owned may be adjusted to reflect management estimates of disposal costs including, but not limited to, real estate brokerage commissions, legal fees, and delinquent property taxes. Fair Values of Financial Instruments ASC 825-10 and ASC 270-10, Interim Disclosures about Fair Value Financial Instruments , require disclosures about fair value financial instruments and significant assumptions used to estimate fair value. The estimated fair values of financial instruments not previously disclosed are determined as follows: Cash and Cash Equivalents (carried at cost) Due to their short-term nature, the carrying amounts of cash and cash equivalents are considered to be a reasonable estimate of fair value and represents a level 1 measurement. Other Interest Bearing Deposits (carried at cost) Fair value of interest bearing deposits is estimated using a discounted cash flow analysis based on current interest rates being offered by instruments with similar terms and represents a level 3 measurement. Non-marketable Equity Securities, (carried at cost) Non-marketable equity securities are comprised of Federal Home Loan Bank stock and Federal Reserve Bank stock carried at cost, which are their redeemable fair value since the market for each category of this stock is restricted and represents a level 1 measurement. Loans Receivable, net (carried at cost) Fair value is estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as real estate, C&I and consumer. The fair value of loans is calculated by discounting scheduled cash flows through the estimated maturity date using market discount rates reflecting the credit and interest rate risk inherent in the loan. The estimate of maturity is based on the Bank’s repayment schedules for each loan classification. The fair value of variable rate loans approximates carrying value. The net carrying value of the loans acquired through the CBN and WFC acquisition approximates the fair value of the loans at September 30, 2017 . The fair value of loans is considered to be a level 3 measurement. Loans Held for Sale Fair values are based on quoted market prices of similar loans sold on the secondary market. Mortgage Servicing Rights Fair values are estimated using discounted cash flows based on current market rates and conditions. Impaired Loans (carried at fair value) Impaired loans are loans in which the Company has measured impairment, generally based on the fair value of the loan’s collateral. Fair value is generally determined based upon independent third-party appraisals of the properties, or discounted cash flows based upon the expected proceeds. These assets are included as Level 3 fair values, based upon the lowest level of input that is significant to the fair value measurements. Foreclosed Assets (carried at fair value) Foreclosed assets are the only non-financial assets valued on a non-recurring basis which are held by the Company at fair value, less cost to sell. At foreclosure or repossession, if the fair value, less estimated costs to sell, of the collateral acquired (real estate, vehicles, equipment) is less than the Company’s recorded investment in the related loan, a write-down is recognized through a charge to the ALL. Additionally, valuations are periodically performed by management and any subsequent reduction in value is recognized by a charge to income. The fair value of foreclosed assets held-for-sale is estimated using Level 3 inputs based on observable market data. Accrued Interest Receivable and Payable (carried at cost) Due to their short-term nature, the carrying amounts of accrued interest receivable and payable are considered to be a reasonable estimate of fair value and represents a level 1 measurement. Deposits (carried at cost) The fair value of deposits with no stated maturity, such as demand deposits, savings accounts, and money market accounts, is the amount payable on demand at the reporting date. The fair value of fixed rate certificate accounts is calculated by using discounted cash flows applying interest rates currently being offered on similar certificates and represents a level 3 measurement. The net carrying value of fixed rate certificate accounts acquired through the CBN and WFC acquisition approximates the fair value of the loans at September 30, 2017 and represents a level 3 measurement. Federal Home Loan Bank Advances (carried at cost) The fair value of long-term borrowed funds is estimated using discounted cash flows based on the Bank’s current incremental borrowing rates for similar borrowing arrangements. The carrying value of short-term borrowed funds approximates their fair value and represents a level 2 measurement. Off-Balance-Sheet Instruments (disclosed at cost) The fair value of off-balance sheet commitments would be estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements, the current interest rates, and the present creditworthiness of the customers. Since this amount is immaterial to the Company’s consolidated financial statements, no amount for fair value is presented. The table below represents what we would receive to sell an asset or what we would have to pay to transfer a liability in an orderly transaction between market participants at the measurement date. The carrying amount and estimated fair value of the Company's financial instruments as of the dates indicated below were as follows: September 30, 2017 September 30, 2016 Valuation Method Used Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value Financial assets: Cash and cash equivalents (Level I) $ 41,677 $ 41,677 $ 10,046 $ 10,046 Interest-bearing deposits (Level I) 8,148 8,143 745 760 Securities available for sale "AFS" See above 95,883 95,883 80,123 80,123 Securities held to maturity "HTM" (Level II) 5,453 5,605 6,669 6,944 Non-marketable equity securities, at cost (Level II) 7,292 7,292 5,034 5,034 Loans receivable, net (Level III) 727,053 737,119 568,371 585,679 Loans held for sale (Level II) 2,334 2,334 — — Mortgage servicing rights (Level III) 1,886 1,951 — — Accrued interest receivable (Level I) 3,291 3,291 2,032 2,032 Financial liabilities: Deposits (Level III) $ 742,504 $ 746,025 $ 557,677 $ 561,919 Federal Home Loan Bank advances (Level III) 90,000 89,998 59,291 59,557 Other borrowings (Level I) 30,319 30,319 11,000 11,000 Other liabilities (Level I) 4,131 4,131 3,353 3,353 Accrued interest payable (Level I) 227 227 122 122

Loans, Allowance for Loan Losse

Loans, Allowance for Loan Losses and Impaired Loans	12 Months Ended
	Sep. 30, 2017
Receivables [Abstract]
LOANS, ALLOWANCE FOR LOAN LOSSES AND IMPAIRED LOANS	LOANS, ALLOWANCE FOR LOAN LOSSES AND IMPAIRED LOANS Loans by classes within portfolio segments as of September 30, 2017 and 2016 , respectively, were as follows: September 30, 2017 September 30, 2016 Originated Loans: Residential real estate: One to four family $ 132,380 $ 160,961 Purchased HELOC loans 18,071 — Commercial/Agricultural real estate: Commercial real estate 97,155 58,768 Agricultural real estate 10,628 3,418 Multi-family real estate 24,486 18,935 Construction and land development 12,399 12,977 Consumer non-real estate: Originated indirect paper 85,732 119,073 Purchased indirect paper 29,555 49,221 Other Consumer 14,496 18,926 Commercial/Agricultural non-real estate: Commercial non-real estate 35,198 17,969 Agricultural non-real estate 12,493 9,994 Total originated loans $ 472,593 $ 470,242 Acquired Loans: Residential real estate: One to four family $ 97,183 $ 26,777 Commercial/Agricultural real estate: Commercial real estate 62,807 30,172 Agricultural real estate 57,374 24,780 Multi-family real estate 1,742 200 Construction and land development 7,309 3,603 Consumer non-real estate: Other Consumer 6,172 789 Commercial/Agricultural non-real estate: Commercial non-real estate 20,053 13,032 Agricultural non-real estate 11,380 4,653 Total acquired loans $ 264,020 $ 104,006 Total Loans: Residential real estate: One to four family $ 229,563 $ 187,738 Purchased HELOC loans 18,071 — Commercial/Agricultural real estate: Commercial real estate 159,962 88,940 Agricultural real estate 68,002 28,198 Multi-family real estate 26,228 19,135 Construction and land development 19,708 16,580 Consumer non-real estate: Originated indirect paper 85,732 119,073 Purchased indirect paper 29,555 49,221 Other Consumer 20,668 19,715 Commercial/Agricultural non-real estate: Commercial non-real estate 55,251 31,001 Agricultural non-real estate 23,873 14,647 Gross loans $ 736,613 $ 574,248 Less: Unearned net deferred fees and costs and loans in process 1,471 1,915 Unamortized discount on acquired loans (5,089 ) (1,724 ) Allowance for loan losses (5,942 ) (6,068 ) Loans receivable, net $ 727,053 $ 568,371 Portfolio Segments: Residential real estate loans are collateralized by primary and secondary positions on real estate and are underwritten primarily based on borrower's documented income, credit scores, and collateral values. Under consumer home equity loan guidelines, the borrower will be approved for a loan based on a percentage of their home's appraised value less the balance owed on the existing first mortgage. Credit risk is minimized within the residential real estate portfolio as relatively small loan amounts are spread across many individual borrowers. Management evaluates trends in past due loans and current economic factors such as the housing price index on a regular basis. Commercial and agricultural real estate loans are underwritten after evaluating and understanding the borrower's ability to operate profitably and prudently expand its business. Management examines current and projected cash flows to determine the ability of the borrower to repay its obligations as agreed. These loans are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Commercial real estate lending typically involves higher loan principal amounts and the repayment of these loans is generally largely dependent on the successful operation of the property or the business conducted on the property securing the loan. Commercial real estate loans may be more adversely affected by conditions in the real estate markets or in the general economy. The level of owner-occupied property versus non-owner-occupied property are tracked and monitored on a regular basis. Agricultural real estate loans are primarily comprised of loans for the purchase of farmland. Loan-to-value ratios on loans secured by farmland generally do not exceed 75%. Consumer non-real estate loans are comprised of originated indirect paper loans secured primarily by boats and recreational vehicles, purchased indirect paper loans secured primarily by household goods and other consumer loans secured primarily by automobiles and other personal assets. Consumer loans underwriting terms often depend on the collateral type, debt to income ratio and the borrower's creditworthiness as evidenced by their credit score. Collateral value alone may not provide an adequate source of repayment of the outstanding loan balance in the event of a consumer non-real estate default. This shortage is a result of the greater likelihood of damage, loss and depreciation for consumer based collateral. Commercial non-real estate loans are primarily made based on the identified cash flows of the borrower and secondarily on the underlying collateral provided by the borrower. These cash flows, however, may not be as expected and the value of collateral securing the loans may fluctuate. Most commercial loans are secured by the assets being financed or other business assets such as accounts receivable or inventory and may incorporate a personal guarantee. Agricultural non-real estate loans are generally comprised of term loans to fund the purchase of equipment, livestock and seasonal operating lines. Operating lines are typically written for one year and secured by the crop and other farm assets as considered necessary. Agricultural loans carry significant credit risks as they may involve larger balances concentrated with single borrowers or groups of related borrowers. In addition, repayment of such loans depends on the successful operation or management of the farm property securing the loan or for which an operating loan is utilized. Farming operations may be affected by adverse weather conditions such as drought, hail or floods that can severely limit crop yields. Below is a breakdown of loans by risk rating as of September 30, 2017 : 1 to 5 6 7 8 9 TOTAL Originated Loans: Residential real estate: One to four family $ 130,837 $ — $ 1,543 $ — $ — $ 132,380 Purchased HELOC loans 18,071 — — — — 18,071 Commercial/Agricultural real estate: Commercial real estate 96,953 49 153 — — 97,155 Agricultural real estate 10,051 497 80 — — 10,628 Multi-family real estate 24,338 — 148 — — 24,486 Construction and land development 12,399 — — — — 12,399 Consumer non-real estate: Originated indirect paper 85,330 8 394 — — 85,732 Purchased indirect paper 29,555 — — — — 29,555 Other Consumer 14,361 — 135 — — 14,496 Commercial/Agricultural non-real estate: Commercial non-real estate 35,102 — 96 — — 35,198 Agricultural non-real estate 10,798 708 987 — — 12,493 Total originated loans $ 467,795 $ 1,262 $ 3,536 $ — $ — $ 472,593 Acquired Loans: Residential real estate: One to four family $ 94,932 $ 873 $ 1,378 $ — $ — $ 97,183 Commercial/Agricultural real estate: Commercial real estate 57,795 1,814 3,198 — — 62,807 Agricultural real estate 51,516 266 5,592 — — 57,374 Multi-family real estate 1,519 — 223 — — 1,742 Construction and land development 6,739 — 570 — — 7,309 Consumer non-real estate: Other Consumer 6,130 — 42 — — 6,172 Commercial/Agricultural non-real estate: Commercial non-real estate 18,257 372 1,424 — — 20,053 Agricultural non-real estate 11,259 28 93 — — 11,380 Total acquired loans $ 248,147 $ 3,353 $ 12,520 $ — $ — $ 264,020 Total Loans: Residential real estate: One to four family $ 225,769 $ 873 $ 2,921 $ — $ — $ 229,563 Purchased HELOC loans 18,071 — — — — 18,071 Commercial/Agricultural real estate: Commercial real estate 154,748 1,863 3,351 — — 159,962 Agricultural real estate 61,567 763 5,672 — — 68,002 Multi-family real estate 25,857 — 371 — — 26,228 Construction and land development 19,138 — 570 — — 19,708 Consumer non-real estate: Originated indirect paper 85,330 8 394 — — 85,732 Purchased indirect paper 29,555 — — — — 29,555 Other Consumer 20,491 — 177 — — 20,668 Commercial/Agricultural non-real estate: Commercial non-real estate 53,359 372 1,520 — — 55,251 Agricultural non-real estate 22,057 736 1,080 — — 23,873 Gross loans $ 715,942 $ 4,615 $ 16,056 $ — $ — $ 736,613 Less: Unearned net deferred fees and costs and loans in process 1,471 Unamortized discount on acquired loans (5,089 ) Allowance for loan losses (5,942 ) Loans receivable, net $ 727,053 Below is a breakdown of loans by risk rating as of September 30, 2016 : 1 to 5 6 7 8 9 TOTAL Originated Loans: Residential real estate: One to four family $ 159,244 $ — $ 1,632 $ — $ 85 $ 160,961 Commercial/Agricultural real estate: Commercial real estate 58,768 — — — — 58,768 Agricultural real estate 3,418 — — — — 3,418 Multi-family real estate 18,935 — — — — 18,935 Construction and land development 12,977 — — — — 12,977 Consumer non-real estate: Originated indirect paper 118,809 10 254 — — 119,073 Purchased indirect paper 49,221 — — — — 49,221 Other Consumer 18,889 — 37 — — 18,926 Commercial/Agricultural non-real estate: Commercial non-real estate 17,790 — 179 — — 17,969 Agricultural non-real estate 9,994 — — — — 9,994 Total originated loans $ 468,045 $ 10 $ 2,102 $ — $ 85 $ 470,242 Acquired Loans: Residential real estate: One to four family $ 25,613 $ 603 $ 561 $ — $ — $ 26,777 Commercial/Agricultural real estate: Commercial real estate 29,607 167 398 — — 30,172 Agricultural real estate 21,922 11 2,847 — — 24,780 Multi-family real estate 200 — — — — 200 Construction and land development 3,487 — 116 — — 3,603 Consumer non-real estate: Other Consumer 746 11 32 — — 789 Commercial/Agricultural non-real estate: Commercial non-real estate 13,010 11 11 — — 13,032 Agricultural non-real estate 4,546 7 100 — — 4,653 Total acquired loans $ 99,131 $ 810 $ 4,065 $ — $ — $ 104,006 Total Loans: Residential real estate: One to four family $ 184,857 $ 603 $ 2,193 $ — $ 85 $ 187,738 Commercial/Agricultural real estate: Commercial real estate 88,375 167 398 — — 88,940 Agricultural real estate 25,340 11 2,847 — — 28,198 Multi-family real estate 19,135 — — — — 19,135 Construction and land development 16,464 — 116 — — 16,580 Consumer non-real estate: Originated indirect paper 118,809 10 254 — — 119,073 Purchased indirect paper 49,221 — — — — 49,221 Other Consumer 19,635 11 69 — — 19,715 Commercial/Agricultural non-real estate: Commercial non-real estate 30,800 11 190 — — 31,001 Agricultural non-real estate 14,540 7 100 — — 14,647 Gross loans $ 567,176 $ 820 $ 6,167 $ — $ 85 $ 574,248 Less: Unearned net deferred fees and costs and loans in process 1,915 Unamortized discount on acquired loans (1,724 ) Allowance for loan losses (6,068 ) Loans receivable, net $ 568,371 Credit Quality/Risk Ratings: Management utilizes a numeric risk rating system to identify and quantify the Bank’s risk of loss within its loan portfolio. Ratings are initially assigned prior to funding the loan, and may be changed at any time as circumstances warrant. Ratings range from the highest to lowest quality based on factors that include measurements of ability to pay, collateral type and value, borrower stability and management experience. The Bank’s loan portfolio is presented below in accordance with the risk rating framework that has been commonly adopted by the federal banking agencies. The definitions of the various risk rating categories are as follows: 1 through 4 - Pass. A "Pass" loan means that the condition of the borrower and the performance of the loan is satisfactory or better. 5 - Watch. A "Watch" loan has clearly identifiable developing weaknesses that deserve additional attention from management. Weaknesses that are not corrected or mitigated, may jeopardize the ability of the borrower to repay the loan in the future. 6 - Special Mention. A "Special Mention" loan has one or more potential weakness that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or in the institution’s credit position in the future. 7 - Substandard. A "Substandard" loan is inadequately protected by the current net worth and paying capacity of the obligor or the collateral pledged, if any. Assets classified as substandard must have a well-defined weakness, or weaknesses, that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. 8 - Doubtful. A "Doubtful" loan has all the weaknesses inherent in a Substandard loan with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. 9 - Loss. Loans classified as "Loss" are considered uncollectible, and their continuance as bankable assets is not warranted. This classification does not mean that the loan has absolutely no recovery or salvage value, and a partial recovery may occur in the future. Certain directors and executive officers of the Company and the Bank are defined as related parties. These related parties, including their immediate families and companies in which they are principal owners, were loan customers of the Bank during 2017 and 2016 . A summary of the changes in those loans during the last two fiscal years is as follows: September 30, 2017 2016 Balance—beginning of year $ 221 $ 232 New loan originations 2 1 Repayments (13 ) (12 ) Previously originated loans for new director 386 — Balance—end of year $ 596 $ 221 Available and unused lines of credit $ 18 $ 18 Allowance for Loan Losses —The ALL represents management’s estimate of probable and inherent credit losses in the Bank’s loan portfolio. Estimating the amount of the ALL requires the exercise of significant judgment and the use of estimates related to the amount and timing of expected future cash flows on impaired loans, estimated losses on pools of homogeneous loans based on historical loss experience, and consideration of other qualitative factors such as current economic trends and conditions, all of which may be susceptible to significant change. There are many factors affecting the ALL; some are quantitative, while others require qualitative judgment. The process for determining the ALL (which management believes adequately considers potential factors which result in probable credit losses), includes subjective elements and, therefore, may be susceptible to significant change. To the extent actual outcomes differ from management estimates, additional provision for loan losses could be required that could adversely affect the Company’s earnings or financial position in future periods. Allocations of the ALL may be made for specific loans but the entire ALL is available for any loan that, in management’s judgment, should be charged-off or for which an actual loss is realized. As an integral part of their examination process, various regulatory agencies also review the Bank’s ALL. Such agencies may require that changes in the ALL be recognized when such regulators’ credit evaluations differ from those of our management based on information available to the regulators at the time of their examinations. Changes in the ALL by loan type for the periods presented below were as follows: Residential Real Estate Commercial/Agriculture Real Estate Consumer Non-real Estate Commercial/Agricultural Non-real Estate Unallocated Total Year Ended September 30, 2017: Allowance for Loan Losses: Beginning balance, October 1, 2016 $ 2,039 $ 1,883 $ 1,466 $ 652 $ 28 $ 6,068 Charge-offs (233 ) — (389 ) (9 ) — (631 ) Recoveries 14 — 171 1 — 186 Provision 81 130 59 41 8 319 Segment reclassifications (443 ) 510 (371 ) 212 92 — Total Allowance on originated loans $ 1,458 $ 2,523 $ 936 $ 897 $ 128 $ 5,942 Purchased credit impaired loans — — — — — — Other acquired loans — — — — — — Total Allowance on acquired loans $ — $ — $ — $ — $ — $ — Ending balance, September 30, 2017 $ 1,458 $ 2,523 $ 936 $ 897 $ 128 $ 5,942 Allowance for Loan Losses at September 30, 2017: Amount of allowance for loan losses arising from loans individually evaluated for impairment $ 214 $ — $ 64 $ 23 $ — $ 301 Amount of allowance for loan losses arising from loans collectively evaluated for impairment $ 1,244 $ 2,523 $ 872 $ 874 $ 128 $ 5,641 Loans Receivable as of September 30, 2017: — Ending balance of originated loans $ 150,451 $ 144,668 $ 126,165 $ 47,691 $ — $ 468,975 Ending balance of purchased credit-impaired loans 586 7,995 — 3,454 — 12,035 Ending balance of other acquired loans 96,597 121,237 6,172 27,979 251,985 Ending balance of loans $ 247,634 $ 273,900 $ 132,337 $ 79,124 $ — $ 732,995 Ending balance: individually evaluated for impairment $ 4,021 $ 996 $ 702 $ 1,791 $ — $ 7,510 Ending balance: collectively evaluated for impairment $ 243,613 $ 272,904 $ 131,635 $ 77,333 $ — $ 725,485 Residential Real Estate Commercial/Agriculture Real Estate Consumer Non-real Estate Commercial/Agricultural Non-real Estate Unallocated Total Year ended September 30, 2016 Allowance for Loan Losses: Beginning balance, October 1, 2015 $ 2,364 $ 989 $ 1,620 $ 1,271 $ 252 $ 6,496 Charge-offs (140 ) — (460 ) (118 ) — (718 ) Recoveries 11 — 204 — — 215 Provision 30 10 35 — — 75 Segment reclassifications (226 ) 884 67 (501 ) (224 ) — Total allowance on originated loans $ 2,039 $ 1,883 $ 1,466 $ 652 $ 28 $ 6,068 Purchased credit impaired loans $ — $ — $ — $ — $ — $ — Other acquired loans $ — $ — $ — $ — $ — $ — Total allowance on acquired loans $ — $ — $ — $ — $ — $ — Ending balance, September 30, 2016 $ 2,039 $ 1,883 $ 1,466 $ 652 $ 28 $ 6,068 Allowance for Loan Losses at September 30, 2016: Amount of allowance for loan losses arising from loans individually evaluated for impairment $ 503 $ — $ 85 $ 40 $ — $ 628 Amount of allowance for loan losses arising from loans collectively evaluated for impairment $ 1,536 $ 1,883 $ 1,381 $ 612 $ 28 $ 5,440 Loans Receivable as of September 30, 2016: Ending balance of originated loans $ 160,655 $ 92,374 $ 189,441 $ 27,963 $ — $ 470,433 Ending balance of purchased credit-impaired loans $ 577 $ 2,309 $ 4 $ 897 $ — $ 3,787 Ending balance of other acquired loans $ 26,200 $ 56,446 $ 785 $ 16,788 $ — $ 100,219 Ending balance of loans $ 187,432 $ 151,129 $ 190,230 $ 45,648 $ — $ 574,439 Ending balance: individually evaluated for impairment $ 4,640 $ — $ 578 $ 179 $ — $ 5,397 Ending balance: collectively evaluated for impairment $ 182,792 $ 151,129 $ 189,652 $ 45,469 $ — $ 569,042 The Bank has originated substantially all loans currently recorded on the Company’s accompanying Consolidated Balance Sheet, except as noted below. In February 2016, the Bank selectively purchased loans from Central Bank in Rice Lake and Barron, Wisconsin in the amount of $16,363 . In May 2016, the Bank acquired loans from Community Bank of Northern Wisconsin, headquartered in Rice Lake, Wisconsin totaling $111,740 . In August 2017, the Bank acquired loans from Wells Federal, headquartered in Wells, Minnesota totaling $189,077 . During October 2012, the Bank entered into an agreement to purchase short term consumer loans from a third party on an ongoing basis. As part of the servicer agreement entered into in connection with this purchase agreement, the third party seller agreed to purchase or substitute performing consumer loans for all contracts that become 120 days past due. Pursuant to the ongoing loan purchase agreement, a Board of Director determinant was originally established to limit the purchase of these consumer loans under this arrangement to a maximum of $40,000 and a restricted reserve account was established at 3% of the outstanding consumer loan balances purchased up to a maximum of $1,000 , with such percentage amount of the loans being deposited into a segregated reserve account. The funds in the reserve account are to be released to compensate the Bank for any purchased loans that are not purchased back by the seller or substituted with performing loans and are ultimately charged off by the Bank. During the first quarter of fiscal 2015, the Board of Directors increased the limit of these purchased consumer loans to a maximum of $50,000 . As of September 30, 2017 , the balance of the consumer loans purchased was $ 29,555 compared to $49,221 as of September 30, 2016 . As of September 30, 2017 , new purchases from this third party have been terminated. The balance in the cash reserve account at September 30, 2017 was $925 , which is included in Deposits on the accompanying Consolidated Balance Sheet. To date, none of the purchased loans have been charged off or have experienced losses. The weighted average rate earned on these purchased consumer loans was 4.25% as of September 30, 2017 . From March 2014 through December 2015, the rate earned for all new loan originations of these purchased consumer loans was 4.00% . As of January 2016, new loans purchased were at an interest rate of 4.25% due to the increase in the Prime Rate. In September 2017, the Bank purchased, on a non-recourse basis, a 90% participation in $23,977 of loans secured by second liens on certain residential real estate properties. The seller retained servicing of the purchased loans, and is paid a 40 basis point servicing fee, based on the outstanding balance of the purchased loans. The balance of the Bank's share of the purchased loans was $18,071 at September 30, 2017. Loans receivable by loan type as of the end of the periods shown below were as follows: Residential Real Estate Commercial/Agriculture Real Estate Loans Consumer non-Real Estate Commercial/Agriculture non-Real Estate Totals September 30, 2017 September 30, 2016 September 30, 2017 September 30, 2016 September 30, 2017 September 30, 2016 September 30, 2017 September 30, 2016 September 30, 2017 September 30, 2016 Performing loans Performing TDR loans $ 3,085 $ 2,942 $ 1,890 $ — $ 167 $ 276 $ 88 $ — $ 5,230 $ 3,218 Performing loans other 242,198 182,747 268,619 150,181 131,695 189,653 77,213 45,370 719,725 567,951 Total performing loans 245,283 185,689 270,509 150,181 131,862 189,929 77,301 45,370 724,955 571,169 Nonperforming loans (1) Nonperforming TDR loans 593 471 — — 28 44 — — 621 515 Nonperforming loans other 1,758 1,272 3,391 948 447 257 1,823 278 7,419 2,755 Total nonperforming loans 2,351 1,743 3,391 948 475 301 1,823 278 8,040 3,270 Total loans $ 247,634 $ 187,432 $ 273,900 $ 151,129 $ 132,337 $ 190,230 $ 79,124 $ 45,648 $ 732,995 $ 574,439 (1) Nonperforming loans are either 90+ days past due or nonaccrual. An aging analysis of the Company’s consumer real estate, commercial/agriculture real estate, consumer and other loans and purchased third party loans as of September 30, 2017 and 2016 , respectively, was as follows: 30-59 Days Past Due 60-89 Days Past Due Greater Than 89 Days Total Past Due Current Total Loans Nonaccrual Loans Recorded September 30, 2017 Residential real estate: One to four family $ 2,811 $ 393 $ 1,228 $ 4,432 $ 225,131 $ 229,563 $ 2,200 $ 151 Purchased HELOC loans 250 — — 250 17,821 18,071 $ — — Commercial/Agricultural real estate: Commercial real estate 332 70 282 684 159,278 159,962 572 — Agricultural real estate 57 — 2,405 2,462 65,540 68,002 2,723 96 Multi-family real estate — — — — 26,228 26,228 — — Construction and land development — — — — 19,708 19,708 — — Consumer non-real estate: Originated indirect paper 426 112 123 661 85,071 85,732 74 80 Purchased indirect paper 601 305 221 1,127 28,428 29,555 — 221 Other Consumer 120 79 57 256 20,412 20,668 76 25 Commercial/Agricultural non-real estate: Commercial non-real estate 75 23 156 254 54,997 55,251 1,618 — Agricultural non-real estate 757 — 120 877 22,996 23,873 189 16 Total $ 5,429 $ 982 $ 4,592 $ 11,003 $ 725,610 $ 736,613 $ 7,452 $ 589 September 30, 2016 Residential real estate: One to four family $ 1,062 $ 892 $ 1,238 $ 3,192 $ 184,546 $ 187,738 $ 1,595 $ 123 Commercial/Agricultural real estate: Commercial real estate 33 83 367 483 88,457 88,940 483 — Agricultural real estate — — 623 623 27,575 28,198 623 — Multi-family real estate — — — — 19,135 19,135 — — Construction and land development 27 — 35 62 16,518 16,580 — — Consumer non-real estate: Originated indirect paper 204 30 122 356 118,717 119,073 158 53 Purchased indirect paper 338 286 199 823 48,398 49,221 — 199 Other Consumer 104 16 34 154 19,561 19,715 54 5 Commercial/Agricultural non-real estate: Commercial non-real estate 9 2 155 166 30,835 31,001 188 — Agricultural non-real estate — 60 90 150 14,497 14,647 90 — Total $ 1,777 $ 1,369 $ 2,863 $ 6,009 $ 568,239 $ 574,248 $ 3,191 $ 380 At September 30, 2017 , the Company has identified impaired loans of $24,359 . consisting of $5,851 TDR loans, $12,035 purchased credit impaired loans and $6,473 of substandard non-TDR loans, which includes $2,387 of non-PCI acquired loans. The $24,359 total of impaired loans includes $5,230 of performing TDR loans. At September 30, 2016, the Company had identified impaired loans of $10,369 , consisting of $3,733 TDR loans, $3,787 purchased credit impaired loans and $2,849 of substandard non-TDR loans, which includes $1,185 of non-PCI acquired loans. The $10,369 total of impaired loans includes $3,218 of performing TDR loans. A loan is identified as impaired when, based on current information and events, it is probable that the Bank will be unable to collect all amounts due according to the contractual terms of the loan agreement. Performing TDRs consist of loans that have been modified and are performing in accordance with the modified terms for a sufficient length of time, generally six months, or loans that were modified on a proactive basis. A summary of the Company’s impaired loans as of September 30, 2017 and September 30, 2016 was as follows: Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized 2017 With No Related Allowance Recorded: Residential real estate $ 4,015 $ 4,015 $ — $ 3,440 $ 9 Commercial/agriculture real estate 12,626 12,626 — 4,460 2 Consumer non-real estate 433 433 — 340 16 Commercial/agricultural non-real estate 5,795 5,795 — 2,628 11 Total $ 22,869 $ 22,869 $ — $ 10,868 $ 38 With An Allowance Recorded: Residential real estate $ 1,198 $ 1,198 $ 214 $ 1,545 $ 2 Commercial/agriculture real estate — — — — — Consumer non-real estate 269 269 65 306 — Commercial/agricultural non-real estate 23 23 23 101 — Total $ 1,490 $ 1,490 $ 302 $ 1,952 $ 2 2017 Totals: Residential real estate $ 5,213 $ 5,213 $ 214 $ 4,985 $ 11 Commercial/agriculture real estate 12,626 12,626 — 4,460 2 Consumer non-real estate 702 702 65 646 16 Commercial/agricultural non-real estate 5,818 5,818 23 2,729 11 Total $ 24,359 $ 24,359 $ 302 $ 12,820 $ 40 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized 2016 With No Related Allowance Recorded: Residential real estate $ 3,807 $ 3,807 $ — $ 3,817 $ 132 Commercial/agriculture real estate 2,326 2,326 — 2,326 27 Consumer non-real estate 247 247 — 451 36 Commercial/agricultural non-real estate 1,577 1,577 — 1,577 42 Total $ 7,957 $ 7,957 $ — $ 8,171 $ 237 With An Allowance Recorded: Residential real estate $ 1,891 $ 1,891 $ 503 $ 1,808 $ 50 Commercial/agriculture real estate — — — — — Consumer non-real estate 342 342 76 339 10 Commercial/agricultural non-real estate 179 179 27 36 1 Total $ 2,412 $ 2,412 $ 606 $ 2,183 $ 61 2016 Totals: Residential real estate $ 5,698 $ 5,698 $ 503 $ 5,625 $ 182 Commercial/agriculture real estate 2,326 2,326 — 2,326 27 Consumer non-real estate 589 589 76 790 46 Commercial/agricultural non-real estate 1,756 1,756 27 1,613 43 Total $ 10,369 $ 10,369 $ 606 $ 10,354 $ 298 Troubled Debt Restructuring – A TDR includes a loan modification where a borrower is experiencing financial difficulty and the Bank grants a concession to that borrower that the Bank would not otherwise consider except for the borrower’s financial difficulties. Concessions include an extension of loan terms, renewals of existing balloon loans, reductions in interest rates and consolidating existing Bank loans at modified terms. A TDR may be either on accrual or nonaccrual status based upon the performance of the borrower and management’s assessment of collectability. If a TDR is placed on nonaccrual status, it remains there until a sufficient period of performance under the restructured terms has occurred at which time it is returned to accrual status. There were 2 delinquent TDRs, greater than 60 days past due, with a recorded investment of $504 at September 30, 2017 , compared to 3 such loans with a recorded investment of $226 at September 30, 2016 . Following is a summary of TDR loans by accrual status as of September 30, 2017 and September 30, 2016 . There were no TDR commitments or unused lines of credit as of September 30, 2017 and September 30, 2016 . September 30, 2017 2016 Troubled debt restructure loans: Accrual status $ 5,230 $ 3,218 Non-accrual status 621 515 Total $ 5,851 $ 3,733 The following provides detail, including specific reserve and reasons for modification, related to loans identified as TDRs during the years ended September 30, 2017 and September 30, 2016 : Number of Contracts Modified Rate Modified Payment Modified Under- writing Other Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Specific Reserve 2017 TDRs: Residential real estate 9 $ — $ — $ 679 $ 236 $ 915 $ 915 $ 24 Commercial/Agricultural real estate 8 — — 1,822 68 1,890 1,890 — Consumer non-real estate 4 — — 4 28 32 32 — Commercial/Agricultural non-real estate 2 — — — 93 93 93 — Totals 23 $ — $ — $ 2,505 $ 425 $ 2,930 $ 2,930 $ 24 Number of Contracts Modified Rate Modified Payment Modified Under- writing Other Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Specific Reserve 2016 TDRs Residential real estate 4 $ 37 $ — $ 359 $ — $ 396 $ 396 $ 74 Commercial/Agricultural real estate — — — — — — — — Consumer non-real estate 3 — — 21 — 21 21 — Commercial/Agricultural non-real estate — — — — — — — — Totals 7 $ 37 $ — $ 380 $ — $ 417 $ 417 $ 74 A summary of loans by loan class modified in a troubled debt restructuring as of September 30, 2017 and September 30, 2016 , and during each of the twelve months then ended, was as follows: September 30, 2017 September 30, 2016 Number of Modifications Recorded Investment Number of Modifications Recorded Investment Troubled debt restructurings: Originated loans: Residential real estate 32 $ 3,678 32 $ 3,413 Commercial/Agricultural real estate 8 1,890 — — Consumer non-real estate 20 195 21 320 Commercial/Agricultural non-real estate 2 88 — — Total originated loans 62 $ 5,851 53 $ 3,733 The following table provides information related to restructured loans that were considered in default as of September 30, 2017 and September 30, 2016 : September 30, 2017 September 30, 2016 Number of Modifications Recorded Investment Number of Modifications Recorded Investment Troubled debt restructurings: Residential real estate 4 $ 593 9 $ 516 Commercial/Agricultural real estate — — 6 948 Consumer non-real estate 3 28 4 43 Commercial/Agricultural non-real estate — — 2 99 Total troubled debt restructurings 7 $ 621 21 $ 1,606 Included above is one TDR loan that defaulted during the year ended September 30, 2017 . All acquired loans were initially recorded at fair value at the acquisition date. The outstanding balance and the carrying amount of acquired loans included in the consolidated balance sheet are as follows: September 30, 2017 Accountable for under ASC 310-30 (PCI loans) Outstanding balance 12,035 Carrying amount 9,838 Accountable for under ASC 310-20 (non-PCI loans) Outstanding balance 251,985 Carrying amount 249,093 Total acquired loans Outstanding balance 264,020 Carrying amount 258,931 The following table provides changes in accretable yield for all acquired loans accounted for under ASC 310-20: 2017 2016 Balance at beginning of period $ 192 $ — Acquisitions 2,802 203 Reduction due to unexpected early payoffs — — Reclass from non-accretable difference — — Disposals/transfers — — Accretion (101 ) (11 ) Balance at end of period $ 2,893 $ 192 Non-accretable yield on purchased credit impaired loans was $2,196 and $1,532 at September 30, 2017 and September 30, 2016, respectively. The following table reflects amounts for all acquired credit impaired and acquired performing loans acquired from WFC at acquisition: Acquired Credit Impaired Loans Acquired Performing Loans Total Acquired Loans Contractually required cash flows at acquisition $ 9,182 $ 179,895 $ 189,077 Non-accretable difference (expected losses and foregone interest) (936 ) — (936 ) Cash flows expected to be collected at acquisition 8,246 179,895 188,141 Accretable yield — (2,802 ) (2,802 ) Fair value of acquired loans at acquisition $ 8,246 177,

Mortgage Servicing Rights

Mortgage Servicing Rights	12 Months Ended
	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
MORTGAGE SERVICING RIGHTS	MORTGAGE SERVICING RIGHTS Mortgage servicing rights-- Mortgage loans serviced for others are not included in the accompanying consolidated balance sheets. The unpaid balances of these loans as of September 30, 2017 and 2016 were $282,392 and $0 , respectively, and consisted of one- to four-family residential real estate loans. These loans are serviced primarily for the Federal Home Loan Mortgage Corporation, Federal Home Loan Bank and the Federal National Mortgage Association. Custodial escrow balances maintained in connection with the foregoing loan servicing, and included in deposits were $3,208 and $0 , at September 30, 2017 and 2016, respectively. Mortgage servicing rights activity for the years ended September 30, 2017 and September 30, 2016 were as follows: Year ended September 30, 2017 2016 Balance at beginning of period $ — $ — MSR asset acquired 1,909 — MSRs capitalized 13 — Amortization during the period (36 ) — Valuation allowance at end of period — — Net book value at end of period $ 1,886 $ — Fair value of MSR asset at end of period $ 1,951 $ — Residential mortgage loans serviced for others $ 282,392 $ — Net book value of MSR asset to loans serviced for others 0.67 % n/a At September 30, 2017 , the estimated future aggregate amortization expense for the MSRs is as follows. The estimated amortization expense is based on existing mortgage servicing asset balances. The timing of amortization expense actually recognized in future periods may differ significantly based on actual prepayment speeds, mortgage interest rates and other factors. 2018 387 2019 338 2020 293 2021 243 2022 195 After 2022 430 Total $ 1,886

Investment Securities

Investment Securities	12 Months Ended
	Sep. 30, 2017
Investments, Debt and Equity Securities [Abstract]
INVESTMENT SECURITIES	INVESTMENT SECURITIES The amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale and held to maturity as of September 30, 2017 and September 30, 2016 , respectively, were as follows: Available for sale securities Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value September 30, 2017 U.S. government agency obligations $ 18,454 $ 35 $ 448 $ 18,041 Obligations of states and political subdivisions 35,656 270 131 35,795 Mortgage-backed securities 36,661 124 311 36,474 Agency securities 147 83 — 230 Corporate debt securities 5,410 — 67 5,343 Total available for sale securities $ 96,328 $ 512 $ 957 $ 95,883 September 30, 2016 U.S. government agency obligations $ 16,388 $ 48 $ 29 $ 16,407 Obligations of states and political subdivisions 33,405 630 23 34,012 Mortgage-backed securities 28,861 389 3 29,247 Federal Agricultural Mortgage Corporation 70 11 — 81 Trust preferred securities 376 — — 376 Total available for sale securities $ 79,100 $ 1,078 $ 55 $ 80,123 Held to maturity securities Amortized Gross Gross Estimated September 30, 2017 Obligations of states and political subdivisions $ 1,311 $ 17 $ — $ 1,328 Mortgage-backed securities 4,142 136 1 4,277 Total held to maturity securities $ 5,453 $ 153 $ 1 $ 5,605 September 30, 2016 Obligations of states and political subdivisions $ 1,315 $ 20 $ — $ 1,335 Mortgage-backed securities 5,354 255 — 5,609 Total held to maturity securities $ 6,669 $ 275 $ — $ 6,944 The unrealized losses at September 30, 2016 in U.S. Government securities, state and municipal securities, and mortgage-backed securities are the result of interest rate fluctuations. If held to maturity, these bonds will mature at par, and the Company will not realize a loss. The Company has the intent to hold the securities and does not believe it will be required to sell the securities before recovery occurs. At September 30, 2017 , the Bank has pledged certain of its U.S. Government Agency securities with a carrying value of $2,661 as collateral against a borrowing line of credit with the Federal Reserve Bank. However, as of September 30, 2017 , there were no borrowings outstanding on this Federal Reserve Bank line of credit. As of September 30, 2017 , the Bank has pledged certain of its U.S. Government Agency securities with a carrying value of $7,825 and mortgage-backed securities with a carrying value of 19,447 as collateral against specific municipal deposits. As of September 30, 2017 , the Bank also has mortgage backed securities with a carrying value of $1,312 pledged as collateral to the Federal Home Loan Bank of Des Moine against the MPF Credit Enhancement fee. The estimated fair value of available for sale securities at September 30, 2017 , by contractual maturity, is shown below. Expected maturities will differ from contractual maturities on mortgage-backed securities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Expected maturities may differ from contractual maturities on certain agency and municipal securities due to the call feature. Available for sale securities Amortized Cost Estimated Fair Value Due in one year or less $ 160 $ 160 Due after one year through five years 15,008 15,056 Due after five years through ten years 30,586 30,330 Due after ten years 13,766 13,633 59,520 59,179 Mortgage backed securities 36,661 36,474 Securities without contractual maturities 147 230 Total available for sale securities $ 96,328 $ 95,883 Held to maturity securities Amortized Cost Estimated Fair Value Due after one year through five years $ 1,311 $ 1,328 Mortgage backed securities 4,142 4,277 Total held to maturity securities $ 5,453 $ 5,605 Securities with unrealized losses at September 30, 2017 and 2016 , aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, were as follows: Less than 12 Months 12 Months or More Total Available for sale securities Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss 2017 U.S. government agency obligations $ 8,296 $ 186 $ 6,932 $ 262 $ 15,228 $ 448 Obligations of states and political subdivisions 8,170 62 3,701 70 11,871 132 Mortgage-backed securities 14,167 96 9,753 215 23,920 311 Corporate debt securities 5,343 67 — — 5,343 67 Total $ 35,976 $ 411 $ 20,386 $ 547 $ 56,362 $ 958 2016 U.S. government agency obligations $ 4,039 $ 4 $ 2,494 $ 25 $ 6,533 $ 29 Obligations of states and political subdivisions 2,885 7 1,338 15 4,223 22 Mortgage-backed securities 1,385 1 1,137 3 2,522 4 Total $ 8,309 $ 12 $ 4,969 $ 43 $ 13,278 $ 55 Less than 12 Months 12 Months or More Total Held to maturity securities Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss 2017 Obligations of states and political subdivisions $ — $ — $ — $ — $ — $ — Mortgage-backed securities 406 1 — — 406 1 Total $ 406 $ 1 $ — $ — $ 406 $ 1 2016 Obligations of states and political subdivisions $ — $ — $ — $ — $ — $ — Mortgage-backed securities — — — — — — Total $ — $ — $ — $ — $ — $ — The Company evaluates securities for other-than-temporary impairment at least on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. As part of such monitoring, the credit quality of individual securities and their issuer is assessed. Significant inputs used to measure the amount of other-than-temporary impairment related to credit loss include, but are not limited to; the Company's intent and ability to sell the debt security prior to recovery, that it is more likely than not that the Company will not sell the security prior to recovery, default and delinquency rates of the underlying collateral, remaining credit support, and historical loss severities. Adjustments to market value of available for sale securities that are considered temporary are recorded as separate components of shareholders' equity, net of tax. If the unrealized loss of a security is identified as other-than-temporary based on information available, such as the decline in the creditworthiness of the issuer, external market ratings, or the anticipated or realized elimination of associated dividends, such impairments are further analyzed to determine if credit loss exists. If there is a credit loss, it will be recorded in the Company's consolidated statement of operations. Non-credit components of the unrealized losses on available for sale securities will continue to be recognized in other comprehensive income (loss), net of tax. Unrealized losses reflected in the preceding tables have not been included in results of operations because the unrealized loss was not deemed other-than-temporary. Management has determined that more likely than not, the Company neither intends to sell, nor will it be required to sell each debt security before its anticipated recovery, and therefore recovery of cost will occur.

Office Properties and Equipment

Office Properties and Equipment	12 Months Ended
	Sep. 30, 2017
Property, Plant and Equipment [Abstract]
OFFICE PROPERTIES AND EQUIPMENT	OFFICE PROPERTIES AND EQUIPMENT Office properties and equipment at September 30 for each of the years shown below consisted of the following: 2017 2016 Land $ 1,573 $ 1,130 Buildings 8,877 4,409 Furniture, equipment, and vehicles 4,240 5,964 Subtotals 14,690 11,503 Less—Accumulated depreciation (5,045 ) (6,165 ) Office properties and equipment—net $ 9,645 $ 5,338 Depreciation expense was $ 864 and $ 1,071 for the years ended September 30, 2017 and 2016 , respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND INTANGIBLE ASSETS	GOODWILL AND INTANGIBLE ASSETS Goodwill-- Goodwill was $10,444 and $4,663 as of September 30, 2017 , and September 30, 2016 , respectively. There was an addition to the carrying amount of goodwill in the current year of $5,781 related to the WFC acquisition. See Note 2 for additional information on the acquisition. The following table provides changes in goodwill during the years ended September 30, 2017 and September 30, 2016 : Year ended September 30, 2017 2016 Balance at beginning of year $ 4,663 $ — Select loans and deposits purchase from Central Bank — 435 CBN acquisition (see Note 2) — 4,228 WFC acquisition (see Note 2) 5,781 — Amortization — — Balance at end of year $ 10,444 $ 4,663 Intangible assets-- Intangible assets consist of core deposit intangibles arising from various bank acquisitions and the premium on the Wells Insurance Agency customer relationships. A summary of intangible assets and related amortization for the periods shown below follows: Year ended September 30, 2017 2016 Gross carrying amount $ 8,195 $ 3,399 Accumulated amortization (2,746 ) (2,527 ) Net book value $ 5,449 $ 872 Additions during the year $ 4,796 $ 607 Amortization during the year $ 219 $ 111 At September 30, 2017 , the estimated future aggregate amortization expense for the intangible assets are as follows: Intangible Assets 2018 644 2019 630 2020 629 2021 629 2022 629 After 2022 2,288 Total $ 5,449

Deposits

Deposits	12 Months Ended
	Sep. 30, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
DEPOSITS	DEPOSITS The following is a summary of deposits by type at September 30, 2017 and 2016 , respectively: 2017 2016 Non-interest bearing demand deposits $ 75,318 $ 45,408 Interest bearing demand deposits 147,912 48,934 Savings accounts 102,756 52,153 Money market accounts 125,749 137,234 Certificate accounts 290,769 273,948 Total deposits $ 742,504 $ 557,677 Brokered deposits included above: $ 42,840 $ 5,003 At September 30, 2017 , the scheduled maturities of time deposits were as follows: 2018 $ 156,647 2019 77,079 2020 35,540 2021 15,678 2022 5,825 After 2022 — Total $ 290,769 Deposits from the Company’s directors, executive officers, principal stockholders and their affiliates held by the Bank at September 30, 2017 and 2016 amounted to $823 and $537 , respectively.

Federal Home Loan Bank Advances

Federal Home Loan Bank Advances And Other Borrowings	12 Months Ended
	Sep. 30, 2017
Banking and Thrift [Abstract]
FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS	FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS A summary of Federal Home Loan Bank (FHLB) advances and other borrowings at September 30, 2017 and 2016 is as follows: September 30, 2017 September 30, 2016 Advances from FHLB: Fixed rates $ 90,000 $ 59,291 Senior notes: Variable rate due in May 2021 10,694 11,000 Variable rate due in August 2022 5,000 — 15,694 11,000 Subordinated notes: 6.75% due August 2027, variable rate commencing August 2022 5,000 — 6.75% due August 2027, variable rate commencing August 2022 10,000 — 15,000 — Less: unamortized debt issuance costs (375 ) — Total other borrowings 30,319 11,000 TOTALS $ 120,319 $ 70,291 Federal Home Loan Bank Advances and Irrevocable Standby Letters of Credit Long-term fixed rate advances from the FHLB had contractual interest rates ranging from 0.99% to 1.29% , with a weighted-average contractual interest rate of 1.23% and 1.07% at September 30, 2017 and 2016 , respectively. Advances from the FHLB have terms of 24 months or less, mature at various dates through 2018, and are secured by $213,192 of real estate and commercial and industrial loans. Each Federal Home Loan Bank advance is payable at the maturity date, with a prepayment penalty for fixed rate advances. The Bank has an irrevocable Standby Letter of Credit Master Reimbursement Agreement with the Federal Home Loan Bank. This irrevocable standby letter of credit ("LOC") is supported by loan collateral as an alternative to directly pledging investment securities on behalf of a municipal customer as collateral for their interest bearing deposit balances. These balances were $30,233 and $10,560 at September 30, 2017 and 2016 , respectively. At September 30, 2017 , the Bank’s available and unused portion of this borrowing arrangement was approximately $92,959 , compared to $90,579 as of September 30, 2016 . Maximum month-end amounts outstanding under this borrowing agreement were $90,000 and $67,474 during the twelve months ended September 30, 2017 and 2016 , respectively. Senior Notes and Revolving Line of Credit On May 16, 2016, the Company entered into a Loan Agreement evidencing an $11,000 term loan maturing on May 15, 2021. The proceeds from the Loan were used by the Company for the sole purpose of financing the acquisition, by merger, of Community Bank of Northern Wisconsin. On September 30, 2016, the Company extended a $3,000 revolving line of credit for the purpose of financing its previously announced stock repurchase program. At September 30, 2017 , the available and unused portion of this borrowing arrangement was $3,000 . Under the stock repurchase program, the Company could have repurchased up to 525,200 shares of its common stock or approximately 10% of its current outstanding shares, from time to time through October 1, 2017. As of September 30, 2017 , 1,428 shares were repurchased. On May 30, 2017, the Company terminated the undrawn $3,000 of a revolving line of credit and extended a $5,000 term loan facility for the sole purpose of financing the acquisition, by merger, of Wells Financial Corporation. On August 17, 2017, this term loan was funded and matures on August 15, 2022 with a ten year amortization. The variable rate senior notes provide for a floating interest rate that resets quarterly at rates that are indexed to the three-month London interbank offered rate ("LIBOR") plus 2.70% . The contractual interest rates for those notes ranged from 3.44% to 4.01% during the year ended September 30, 2017, and from 3.34% to 3.44% during the year ended September 30, 2016. The weighted average contractual interest rates payable were 4.01% and 3.44% at September 30, 2017 and 2016 , respectively. Subordinated Notes On August 10, 2017, the Company entered into two subordinated note agreements in the amounts of $5,000 and $10,000 , both maturing on August 9, 2027. The proceeds of the loans were used by the Company for the sole purpose of financing the acquisition, by merger, of Wells Financial Corporation. The subordinated notes are unsecured and are subordinate to the claims of other creditors of the Company. The subordinated notes mature in August 2027, and convert to variable interest rate notes in August 2022. These notes provide for an annual fixed interest rate for the first five years of 6.75% . After the fixed interest period and through maturity, the interest rate will be reset quarterly to equal the three-month LIBOR rate, plus 4.90% . Interest on the Notes will be payable quarterly in arrears on March 31, June 30, September 30 and December 31 of each year through the maturity date. Debt Issuance Costs Debt issuance costs, consisting primarily of investment banking and loan origination fees, of $380 were incurred in conjunction with the senior and the issuance of subordinated notes for the year ended September 30, 2017. The unamortized amount of debt issuance costs at September 30, 2017 was $375 . These debt issuance costs are included in other borrowings on the consolidated balance sheet. Maturities of FHLB advances and other borrowings are as follows: Fiscal years ending September 30, 2018 $ 91,680 2019 1,680 2020 1,680 2021 1,680 2022 4,181 Thereafter 19,418 $ 120,319

Capital Matters

Capital Matters	12 Months Ended
	Sep. 30, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
CAPITAL MATTERS	CAPITAL MATTERS Banks and bank holding companies are subject to regulatory capital requirements administered by federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations involve quantitative measures of assets, liabilities and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators. Failure to meet capital requirements can initiate regulatory action. Prompt corrective action regulations provide five classifications: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized. Although these terms are not used to represent overall financial condition, if adequately capitalized, regulatory approval is required to accept brokered deposits. If undercapitalized, capital distributions are limited, as is asset growth and expansion, and capital restoration plans are required. At September 30, 2017 , the Bank was categorized as “Well Capitalized”, under Prompt Corrective Action Provisions. The Bank’s Tier 1 (leverage) and risk-based capital ratios at September 30, 2017 and 2016 , respectively, are presented below: Actual For Capital Adequacy Purposes To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio As of September 30, 2017 Total capital (to risk weighted assets) $ 88,511,000 13.2 % $ 53,504,000 > = 8.0 % $ 66,880,000 > = 10.0 % Tier 1 capital (to risk weighted assets) 82,569,000 12.4 % 40,128,000 > = 6.0 % 53,504,000 > = 8.0 % Common equity tier 1 capital (to risk weighted assets) 82,569,000 12.4 % 30,096,000 > = 4.5 % 43,472,000 > = 6.5 % Tier 1 leverage ratio (to adjusted total assets) 82,569,000 9.2 % 35,776,000 > = 4.0 % 44,720,000 > = 5.0 % As of September 30, 2016 Total capital (to risk weighted assets) $ 72,345,000 14.1 % $ 41,189,000 > = 8.0 % $ 51,487,000 > = 10.0 % Tier 1 capital (to risk weighted assets) 66,278,000 12.9 % 30,892,000 > = 6.0 % 41,189,000 > = 8.0 % Common equity tier 1 capital (to risk weighted assets) 66,278,000 12.9 % 23,169,000 > = 4.5 % 33,466,000 > = 6.5 % Tier 1 leverage ratio (to adjusted total assets) 66,278,000 9.3 % 28,428,000 > = 4.0 % 35,535,000 > = 5.0 % The Company's Tier 1 (leverage) and risk-based capital ratios at September 30, 2017 and 2016 , respectively, are presented below: Actual For Capital Adequacy To Be Well Capitalized Amount Ratio Amount Ratio Amount Ratio As of September 30, 2017 Total capital (to risk weighted assets) $ 79,889,000 12.0 % $ 53,504,000 > = 8.0 % $ 66,880,000 > = 10.0 % Tier 1 capital (to risk weighted assets) 58,947,000 8.8 % 40,128,000 > = 6.0 % 53,504,000 > = 8.0 % Common equity tier 1 capital (to risk weighted assets) 58,947,000 8.8 % 30,096,000 > = 4.5 % 43,472,000 > = 6.5 % Tier 1 leverage ratio (to adjusted total assets) 58,947,000 6.6 % 35,776,000 > = 4.0 % 44,720,000 > = 5.0 % As of September 30, 2016 Total capital (to risk weighted assets) $ 64,811,000 12.6 % $ 41,189,000 > = 8.0 % $ 51,487,000 > = 10.0 % Tier 1 capital (to risk weighted assets) 58,743,000 11.4 % 30,892,000 > = 6.0 % 41,189,000 > = 8.0 % Common equity tier 1 capital (to risk weighted assets) 58,743,000 11.4 % 23,169,000 > = 4.5 % 33,466,000 > = 6.5 % Tier 1 leverage ratio (to adjusted total assets) 58,743,000 8.3 % 28,428,000 > = 4.0 % 35,535,000 > = 5.0 % At September 30, 2017 , the Company was categorized as “Well Capitalized”, under Prompt Corrective Action Provisions.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Sep. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Financial Instruments with Off-Balance-Sheet Risk— The Company is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include off-balance-sheet credit instruments consisting of commitments to make loans. The face amounts for these items represent the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit is represented by the contract or notional amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance-sheet instruments. Set forth below are the balances of the Company’s off-balance-sheet credit instruments consisting of commitments to make loans as of September 30, 2017 and 2016 , respectively. Contract or Notional Amount at September 30, 2017 2016 Commitments to extend credit $ 78,150 $ 28,341 Commercial standby letter of credit 1,644 135 Commitments to extend credit are agreements to lend to a customer provided there is no violation of any condition established in the contract. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third part. Those guarantees are primarily issued to support public and private borrowing arrangements. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers. The Company evaluates each customer's credit worthiness on a case-by-case basis. The credit and collateral policy for commitments and letters of credit is comparable to that for granting loans. Loss Contingencies— Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated. On March 22, 2017, Paul Parshall, a Wells stockholder, filed a putative Class Action Complaint in the District Court of Faribault County, Minnesota (“Court”) captioned Paul Parshall v. Wells Financial Corp., et al. and docketed at 22-CV-17-179. The Complaint was subsequently amended on June 15, 2017. Named as Defendants were Wells, each of the current members of the Wells Board (“Individual Defendants”) and CCBI. The Amended Complaint asserts, inter alia, that the Individual Defendants breached their fiduciary duties. The Amended Complaint further asserts that Wells and CCBI aided and abetted the purported breaches of fiduciary duty. On September 27, 2017, the Court approved a Stipulation of Dismissal and entered its Order of Dismissal dismissing, with prejudice, the Litigation and all claims, demands or causes of action that were asserted, could have been asserted, or are held by the Plaintiff and without prejudice as to any absent members of the putative class. The Court retained jurisdiction to hear and rule upon an Application for Fees and Expenses that may be filed by Plaintiff’s counsel. Such Application, if any, must be filed by February 28, 2018. As of the date of this report, the Company does not have sufficient information to determine whether it has exposure to any losses that would be either probable or reasonably estimable. Leases— The Company leases certain branch facilities and its administrative offices under operating leases. Rent expense under these operating leases was $1,310 and $1,341 for the years ended September 30, 2017 and 2016 , respectively. None of the Company’s leases contain contingent rental payments, purchase options, escalation or any other significant terms, conditions or restrictions that would affect the future minimum lease payments disclosed below. Future minimum lease payments by year and in the aggregate under the original terms of the non-cancellable operating leases consist of the following: 2018 $ 895 2019 791 2020 752 2021 677 2022 671 After 2022 2,209 Total $ 5,995

Retirement Plans

Retirement Plans	12 Months Ended
	Sep. 30, 2017
Asset Retirement Obligation Disclosure [Abstract]
RETIREMENT PLANS	RETIREMENT PLANS 401(k) Plan— The Company sponsors a 401(k) profit sharing plan that covers all employees who qualify based on minimum age and length of service requirements. Employees may make pretax voluntary contributions to the plan, which are matched, in part, by the Company. Employer matching contributions to the plan were $278 and $194 for 2017 and 2016 , respectively. Supplemental Executive Retirement Plan and Director Retirement Plan — The Company maintained a Supplemental Benefit Plan For Key Employees ("SERP") which was an unfunded, unsecured, non-contributory defined benefit plan, providing retirement benefits for certain former key employees previously designated by the Company’s Board of Directors. Benefits under the SERP generally were based on such former employees’ years of service and compensation during the years preceding their retirement. In May 2009, any additional accrual of benefits under the SERP was suspended. The Company also maintained a Directors’ Retirement Plan ("DRP"), which was an unfunded, unsecured, non-contributory defined benefit plan, providing for supplemental pension benefits for its directors following their termination of service as a director of the Company. Benefits were based on a formula that included each participant’s past and future earnings and years of service with Citizens. Moreover, the benefit amounts owed by the Company under the DRP were determined by individual director agreements entered into by the Company with such participants. The remaining DRP liability related to current and former Directors of the Company. The Company's Board of Directors voted to terminate each of the SERP and the DRP at its regularly scheduled Board meeting on November 19, 2015, with such termination being effective as of the same date. In connection with the termination of each plan, the Board of Directors, in accordance with applicable law and each applicable participant’s plan participation agreement, negotiated lump sum payments to the participants in satisfaction of the Company’s total liability to each participant under the SERP and DRP. In accordance with the final settlement of the Company’s obligations under such plans, the Company made two payments (each for 50% of the total liability owed) to each plan participant. The first payment occurred in December 2016 and the second and final payment occurred in January 2017. In connection with the settlement of all obligations owed by the Company to the participants in the SERP and the DRP, the Company retained an independent consultant during the three months ended March 31, 2016 to perform an actuarial calculation of the final amount of the accumulated benefit owed by the Company to each plan participant. In making this calculation, the consultant made certain assumptions regarding the applicable discount rate to be used and regarding certain other relevant factors to determine the amount of the benefit obligation due each participant, in each case taking into account the terms of each participant’s negotiated plan benefit agreement and the terms of each plan. Differences between the amount of the projected accrued benefit obligation previously recorded by the Company in its consolidated financial statements in connection with these plans and the actual amount of the benefit obligation to be paid to the participants, based upon the calculations of the independent consultant, is recorded in the aggregate as a gain of $41 during the twelve months ended September 30, 2016 on the accompanying Consolidated Statements of Operations line item "Compensation and related benefits" as a reduction to the expense. Moreover, as of September 30, 2016, the Company recorded a liability on the accompanying Consolidated Balance Sheets of $1,046 for the aggregate amount of the benefit obligation due plan participants who were receiving monthly and quarterly payments and the final lump sum payment amounts paid in December 2016 and January 2017. The components of the SERP and Directors’ Retirement plans’ cost at September 30, 2017 and 2016 , respectively, are summarized as follows: 2017 2016 Beginning accrued benefit cost $ 1,046 $ 1,120 Service cost — — Interest cost — 44 Amortization of prior service costs — 1 Net plan termination credit — (41 ) Net periodic benefit cost — 4 Benefits paid (1,046 ) (78 ) Curtailment and settlement — — Ending accrued benefit cost $ — $ 1,046 The following table sets forth the SERP and Directors’ Retirement plans, change in projected benefit obligation, the change in plan assets, the funded status of the plans, and the net liability recognized in the Company’s consolidated balance sheet at September 30, 2017 and 2016 , respectively: 2017 2016 Change in benefit obligation: Projected benefit obligation, beginning of year $ 1,046 $ 1,062 Service cost — — Interest cost — 44 Curtailment and settlement — — Actuarial loss (gain) — 18 Benefits paid (1,046 ) (78 ) Projected benefit obligation, end of year $ — $ 1,046 Change in plan assets: Plan assets at fair value, beginning of year $ — $ — Actual return on plan assets — — Company contributions — 78 Benefits paid — (78 ) Plan assets at fair value, end of year $ — $ — Weighted average assumptions used in determining the benefit obligation and net pension costs as of September 30, 2017 and 2016 , (in actual dollars) were as follows: 2017 2016 Benefit obligation actuarial assumptions: Discount Rate N/A N/A Rate of compensation increase N/A N/A Net pension cost actuarial assumption Discount rate N/A 4.25 % Expected long-term rate of return on plan assets N/A N/A Rate of compensation increase N/A N/A Amounts recognized in consolidated balance sheets as of September 30: 2017 2016 Pension obligation $ — $ 1,046 Prior service cost $ — $ — Net loss (gain) — — Total accumulated other comprehensive income, before tax $ — $ —

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
STOCK-BASED COMPENSATION	STOCK-BASED COMPENSATION In February 2005, the Company’s stockholders approved the Company’s 2004 Recognition and Retention Plan. This plan provides for the grant of up to 113,910 shares of the Company’s common stock to eligible participants under this plan. As of September 30, 2017 , 113,910 restricted shares under this plan were granted. In February 2005, the Company’s stockholders also approved the Company’s 2004 Stock Option and Incentive Plan. This plan provides for the grant of nonqualified and incentive stock options and stock appreciation rights to eligible participants under the plan. The plan provides for the grant of awards for up to 284,778 shares of the Company’s common stock. As of September 30, 2017 , 284,778 options had been granted to eligible participants. In February 2008, the Company’s stockholders approved the Company’s 2008 Equity Incentive Plan. The aggregate number of shares of common stock reserved and available for issuance under the 2008 Equity Incentive Plan is 597,605 shares. Under the Plan, the Compensation Committee may grant stock options and stock appreciation rights that, upon exercise, result in the issuance of 426,860 shares of the Company’s common stock. The Committee may also grant shares of restricted stock and restricted stock units for an aggregate of 170,745 shares of Company common stock under this plan. As of September 30, 2017 , 69,660 restricted shares under this plan were granted. As of September 30, 2017 , 173,000 options had been granted to eligible participants. Restricted shares granted to date under these plans were awarded at no cost to the employee and vest pro rata over a two to five -year period from the grant date. Options granted to date under these plans vest pro rata over a five -year period from the grant date. Unexercised, nonqualified stock options expire within 15 years of the grant date and unexercised incentive stock options expire within 10 years of the grant date. Compensation expense related to restricted stock awards from both the 2004 Recognition and Retention Plan and the 2008 Equity Incentive Plan were $83 and $46 for the years ended September 30, 2017 and 2016 , respectively. Restricted Common Stock Awards 2017 2016 Number of Shares Weighted Number of Shares Weighted Restricted Shares Unvested and outstanding at beginning of year 23,159 $ 9.59 46,857 $ 7.59 Granted 25,569 13.53 11,591 10.98 Vested (6,350 ) 8.88 (13,127 ) 7.17 Forfeited — — (22,162 ) 7.54 Unvested and outstanding at end of year 42,378 $ 12.07 23,159 $ 9.59 The Company accounts for stock-based employee compensation related to the Company’s 2004 Stock Option and Incentive Plan and the 2008 Equity Incentive Plan using the fair-value-based method. Accordingly, management records compensation expense based on the value of the award as measured on the grant date and then the Company recognizes that cost over the vesting period for the award. The compensation cost recognized for stock-based employee compensation from both plans for the years ended September 30, 2017 and 2016 was $31 and $33 , respectively. Common Stock Option Awards Option Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value 2017 Outstanding at beginning of year 140,706 $ 8.67 Granted 23,000 13.75 Exercised (14,100 ) 8.27 Forfeited or expired (3,000 ) 11.00 Outstanding at end of year 146,606 $ 9.45 6.68 Exercisable at end of year 57,712 $ 7.70 3.89 $ 361 Fully vested and expected to vest 146,606 $ 9.45 6.68 $ 659 2016 Outstanding at beginning of year 171,737 $ 7.46 Granted 55,000 10.00 Exercised (43,515 ) Forfeited or expired (42,516 ) Outstanding at end of year 140,706 $ 8.67 7.22 Exercisable at end of year 49,520 $ 7.27 4.09 $ 194 Fully vested and expected to vest 140,706 $ 8.67 7.22 $ 354 Information related to the 2004 Stock Option and Incentive Plan and 2008 Equity Incentive Plan during each year follows: 2017 2016 Intrinsic value of options exercised $ 69 $ 131 Cash received from options exercised $ 114 $ 290 Tax benefit realized from options exercised $ — $ — Set forth below is a table showing relevant assumptions used in calculating stock option expense related to the Company’s 2004 Stock Option and Incentive Plan and 2008 Equity Incentive Plan: 2017 2016 Dividend yield 1.16 % 1.02 % Risk-free interest rate 2.2 % 1.7 % Weighted average expected life (years) 10 10 Expected volatility 2.4 % 5.0 %

Income Taxes

Income Taxes	12 Months Ended
	Sep. 30, 2017
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES Income tax expense (benefit) for each of the periods shown below consisted of the following: 2017 2016 Current tax provision Federal $ 572 $ 683 State 117 131 689 814 Deferred tax provision (benefit) Federal 535 406 State 99 66 634 472 Total $ 1,323 $ 1,286 The provision for income taxes differs from the amount of income tax determined by applying statutory federal income tax rates to pretax income as result of the following differences: 2017 2016 Amount Rate Amount Rate Tax expense at statutory rate $ 1,299 34.00 % $ 1,312 34.00 % State income taxes net of federal 216 5.64 % 197 5.10 % Tax exempt interest (229 ) (5.98 )% (166 ) (4.26 )% Other 37 0.96 % (57 ) (1.51 )% Total $ 1,323 34.62 % $ 1,286 33.33 % Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The following is a summary of the significant components of the Company’s deferred tax assets and liabilities as of September 30, 2017 and September 30, 2016 , respectively: 2017 2016 Deferred tax assets: Allowance for loan losses $ 2,347 $ 2,377 Deferred loan costs/fees 51 77 Director/officer compensation plans 90 299 Net unrealized loss on securities available for sale 178 — Economic performance accruals — 131 Other real estate 304 — Deferred revenue 143 — Loan Discounts 1,450 — Other 100 177 Deferred tax assets $ 4,663 $ 3,061 Deferred tax liabilities: Office properties and equipment (1,039 ) (291 ) Federal Home Loan Bank stock (128 ) — Core Deposit Intangible (1,628 ) — Other real estate (114 ) — Net unrealized gain on securities available for sale — (409 ) Prepaid expenses (147 ) — Mortgage servicing rights (685 ) — Other acquired intangibles (264 ) — Other — (98 ) Deferred tax liabilities (4,005 ) (798 ) Net deferred tax assets $ 658 $ 2,263 The Company regularly reviews the carrying amount of its deferred tax assets to determine if the establishment of a valuation allowance is necessary, as further discussed in Note 1 “Nature of Business and Summary of Significant Accounting Policies,” above. At September 30, 2017 and September 30, 2016 , respectively, management determined that no valuation allowance was necessary. The Company’s income tax returns are subject to review and examination by federal, state and local government authorities. As of September 30, 2017 , years open to examination by the U.S. Internal Revenue Service include taxable years ended September 30, 2014 to present. The years open to examination by state and local government authorities varies by jurisdiction. The tax effects from uncertain tax positions can be recognized in the financial statements, provided the position is more likely than not to be sustained on audit, based on the technical merits of the position. The Company recognizes the financial statement benefit of a tax position only after determining that the relevant tax authority would more likely than not sustain the position following an audit. For tax positions meeting the more-likely-than-not threshold, the amount recognized in the financial statements is the largest benefit that has a greater than 50 percent likelihood of being realized, upon ultimate settlement with the relevant tax authority. The Company applied the foregoing accounting standard to all of its tax positions for which the statute of limitations remained open as of the date of the accompanying consolidated financial statements. The Company’s policy is to recognize interest and penalties related to income tax issues as components of other noninterest expense. During the twelve months ended September 30, 2017 and 2016 , the Company recognized penalties and interest expense in the amount of $0 and $24 , respectively, related to income tax issues which is included in other noninterest expense in its consolidated statements of operations. The Company had a recorded liability of $11 and $24 , which is included in other liabilities in its consolidated balance sheets, for the payment of interest and penalties related to income tax issues as of September 30, 2017 and 2016 , respectively.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE Earnings per share is based on the weighted average number of shares outstanding for the year. A reconciliation of the basic and diluted earnings per share for the last three fiscal years is as follows: 2017 2016 Basic Net income attributable to common shareholders $ 2,499 $ 2,573 Weighted average common shares outstanding 5,361,843 5,241,458 Basic earnings per share $ 0.47 $ 0.49 Diluted Net income attributable to common shareholders $ 2,499 $ 2,573 Weighted average common shares outstanding 5,361,843 5,241,458 for basic earnings per share Add: Dilutive stock options outstanding 16,517 15,846 Average shares and dilutive potential common shares 5,378,360 5,257,304 Diluted earnings per share $ 0.46 $ 0.49 Additional common stock option shares that have not been included due to their antidilutive effect 22,000 38,000

Other Comprehensive Income

Other Comprehensive Income	12 Months Ended
	Sep. 30, 2017
Equity [Abstract]
OTHER COMPREHENSIVE INCOME	OTHER COMPREHENSIVE INCOME The following table shows the tax effects allocated to each component of other comprehensive income for the years ended September 30, 2017 and 2016 : 2017 2016 Before-Tax Amount Tax Expense Net-of-Tax Amount Before-Tax Amount Tax Expense Net-of-Tax Amount Unrealized (losses) gains on securities: Net unrealized (losses) gains arising during the period $ (1,580 ) 632 $ (948 ) $ 1,375 $ (550 ) $ 825 Less: reclassification adjustment for gains included in net income 111 (44 ) 67 63 (25 ) 38 Defined benefit plans: Amortization of unrecognized prior service costs and net losses — — — (58 ) 23 (35 ) Other comprehensive (loss) income $ (1,469 ) $ 588 $ (881 ) $ 1,380 $ (552 ) $ 828 The changes in the accumulated balances for each component of other comprehensive income (loss) for the years ended September 30, 2017 and 2016 were as follows: Unrealized Gains (Losses) on Securities Defined Benefit Plans Other Comprehensive Income (Loss) Balance, October 1, 2015 $ (249 ) $ 35 $ (214 ) Current year-to-date other comprehensive income, net of tax 863 (35 ) 828 Ending balance, September 30, 2016 $ 614 $ — $ 614 Current year-to-date other comprehensive loss, net of tax (881 ) — (881 ) Ending balance, September 30, 2017 $ (267 ) $ — $ (267 ) Reclassifications out of accumulated other comprehensive income for the twelve months ended September 30, 2017 were as follows: Details about Accumulated Other Comprehensive Income (Loss) Components Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (1) Affected Line Item on the Statement of Operations Unrealized gains and losses Sale of securities $ 111 Net gain on sale of available for sale securities Tax effect (44 ) Provision for income taxes Total reclassifications for the period $ 67 Net income attributable to common shareholders (1) Amounts in parentheses indicate decreases to profit/loss. Reclassifications out of accumulated other comprehensive income for the twelve months ended September 30, 2016 were as follows: Details about Accumulated Other Comprehensive Income (Loss) Components Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (1) Affected Line Item on the Statement of Operations Unrealized gains and losses Sale of securities $ 63 Net gain on sale of available for sale securities Tax effect (25 ) Provision for income taxes Total reclassifications for the period $ 38 Net income attributable to common shareholders (1) Amounts in parentheses indicate decreases to profit/loss.

Condensed Financial Information

Condensed Financial Information - Parent Company Only	12 Months Ended
	Sep. 30, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
CONDENSED FINANCIAL INFORMATION - PARENT COMPANY ONLY	CONDENSED FINANCIAL INFORMATION – PARENT COMPANY ONLY The following condensed balance sheets as of September 30, 2017 and 2016 , and condensed statements of operations and cash flows for each of the years in the two-year period ended September 30, 2017 , for Citizens Community Bancorp, Inc. should be read in conjunction with the accompanying consolidated financial statements and the notes thereto. CONDENSED BALANCE SHEETS September 30, 2017 2016 ASSETS Cash and cash equivalents $ 5,716 $ 3,514 Investments 1,242 — Other assets 5 — Investment in subsidiary 97,105 72,079 Total assets $ 104,068 $ 75,593 LIABILITIES AND STOCKHOLDERS’ EQUITY Other borrowings $ 30,319 $ 11,000 Other liabilities 266 49 Total liabilities 30,585 11,049 Total stockholders’ equity 73,483 64,544 Total liabilities and stockholders’ equity $ 104,068 $ 75,593 STATEMENTS OF OPERATIONS 2017 2016 Dividend income from bank subsidiary $ 12,500 $ 3,419 Interest Income (1 ) — Interest expense 594 143 Expenses—other 1,376 306 Total expenses 1,969 449 Income before provision for income taxes and equity in undistributed net income of subsidiary 10,531 2,970 Benefit for income taxes 602 176 Income before equity in undistributed net income (loss) of subsidiary 11,133 3,146 Equity in undistributed net gain of subsidiary (8,634 ) (573 ) Net income $ 2,499 $ 2,573 STATEMENTS OF CASH FLOWS 2017 2016 Change in cash and cash equivalents: Cash flows from operating activities: Net income $ 2,499 $ 2,573 Stock based compensation expense 31 33 Adjustments to reconcile net income to net cash provided by operating activities - Equity in undistributed income of subsidiary (3,866 ) (2,846 ) Increase in other liabilities 216 49 Net cash used in operating activities (1,120 ) (191 ) Cash flows from investing activities: Proceeds from maturities of interest bearing deposits 249 — Cash consideration paid in business combination (27,716 ) — Net cash used in investing activities (27,467 ) — Cash flows from financing activities: Increase in other borrowings to fund business combination 19,620 — Equity costs to fund business combination (259 ) — Decrease in other borrowings (306 ) — Repurchase shares of common stock (16 ) — Surrendered vested shares of common stock (22 ) (50 ) Exercise of common stock options 114 289 Cash dividend from Bank to Holding Company 12,500 3,419 Cash dividends paid (842 ) (629 ) Net cash provided by financing activities 30,789 3,029 Net increase in cash and cash equivalents 2,202 2,838 Cash and cash equivalents at beginning of year 3,514 676 Cash and cash equivalents at end of year $ 5,716 $ 3,514

Nature of Business and Summar27

Nature of Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation – The accompanying consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, Citizens Community Federal N.A. All significant inter-company accounts and transactions have been eliminated.
Use of Estimates	Use of Estimates— Preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying disclosures. These estimates are based on management’s best knowledge of current events and actions the Company may undertake in the future. Estimates are used in accounting for, among other items, fair value of financial instruments, the allowance for loan losses, mortgage servicing rights, foreclosed and repossessed assets, valuation of acquired intangible assets, useful lives for depreciation and amortization, indefinite-lived intangible assets. valuation of goodwill and long-lived assets, stock based compensation, deferred tax assets, uncertain income tax positions and contingencies. Management does not anticipate any material changes to estimates made herein in the near term. Factors that may cause sensitivity to the aforementioned estimates include but are not limited to: those items described under the caption “Risk Factors” in Item 1A of the accompanying annual report on Form 10-K for the year ended September 30, 2017 and external market factors such as market interest rates and employment rates, changes to operating policies and procedures, and changes in applicable banking regulations. Actual results may ultimately differ from estimates, although management does not generally believe such differences would materially affect the consolidated financial statements in any individual reporting period.
Cash and Cash Equivalents	Cash and Cash Equivalents— For purposes of reporting cash flows in the consolidated financial statements, cash and cash equivalents include cash, due from banks, and interest bearing deposits with original maturities of three months or less .
Investment Securities; Held to Maturity and Available for Sale	Investment Securities; Held to Maturity and Available for Sale – Management determines the appropriate classification of investment securities at the time of purchase and reevaluates such designation as of the date of each balance sheet. Securities are classified as held to maturity when the Company has the positive intent and ability to hold the securities to maturity. Held to maturity securities are stated at amortized cost. Investment securities not classified as held to maturity are classified as available for sale. Available for sale securities are stated at fair value, with unrealized holding gains and losses being reported in other comprehensive income (loss), net of tax. Unrealized losses deemed other-than-temporary due to credit issues are reported in the Company’s net income in the period in which the losses arise. Interest income includes amortization of purchase premium or accretion of purchase discount. Amortization of premiums and accretion of discounts are recognized in interest income using the interest method over the estimated lives of the securities.
Loans	Loans – Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at the principal balance outstanding, net of unearned interest, and net of deferred loan fees and costs. Interest income is accrued on the unpaid principal balance of these loans. Loan origination fees, net of certain direct origination costs, are deferred and recognized in interest income using the interest method without anticipating prepayments. Delinquency fees are recognized into income when chargeable, assuming collection is reasonably insured. Interest income on commercial, mortgage and consumer loans is discontinued according to the following schedules: • Commercial/agricultural real estate loans past due 90 days or more; • Commercial/agricultural non-real estate loans past due 90 days or more; • Closed ended consumer non-real estate loans past due 120 days or more; and • Residential real estate loans and open ended consumer non-real estate loans past due 180 days or more. Past due status is based on the contractual terms of the loan. In all cases, loans are placed on nonaccrual status or charged off at an earlier date if collection of principal or interest is considered doubtful. All interest accrued but not received for a loan placed on nonaccrual status is reversed against interest income. Interest received on such loans is accounted for on the cash basis or cost recovery method until qualifying for return to accrual status. Loans are returned to accrual status when payments are made that bring the loan account current with the contractual term of the loan and a six month payment history has been established. Interest on impaired loans considered troubled debt restructurings (“TDRs”) or substandard, less than 90 days delinquent, is recognized as income as it accrues based on the revised terms of the loan over an established period of continued payment. Substandard loans, as defined by the OCC, our primary banking regulator, are loans that are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Residential real estate loans and open ended consumer non-real estate loans are charged off to estimated net realizable value less estimated selling costs at the earlier of when (a) the loan is deemed by management to be uncollectible, or (b) the loan becomes past due 180 days or more. Closed ended consumer non-real estate loans are charged off to net realizable value at the earlier of when (a) the loan is deemed by management to be uncollectible, or (b) the loan becomes past due 120 days or more. Commercial/agricultural real estate and non-real estate loans are charged off to net realizable value at the earlier of when (a) the loan is deemed by management to be uncollectible, or (b) the loan becomes past due 90 days or more.
Allowance for Loan Losses	Allowance for Loan Losses – The allowance for loan losses (“ALL”) is a valuation allowance for probable and inherent credit losses in our loan portfolio. Loan losses are charged against the ALL when management believes that the collectability of a loan balance is unlikely. Subsequent recoveries, if any, are credited to the ALL. Management estimates the required ALL balance taking into account the following factors: past loan loss experience; the nature, volume and composition of our loan portfolio; known and inherent risks in our portfolio; information about specific borrowers’ ability to repay; estimated collateral values; current economic conditions; and other relevant factors determined by management. The ALL consists of specific and general components. The specific component relates to loans that are individually classified as impaired. The general component covers non-impaired loans and is based on historical loss experience adjusted for certain qualitative factors. The entire ALL balance is available for any loan that, in management’s judgment, should be charged off. A loan is impaired when full payment under the loan terms is not expected. Impaired loans consist of all TDRs, as well as individual substandard loans not considered a TDR, when full payment under the loan terms is not expected. All TDRs are individually evaluated for impairment. See Note 4, “Loans, Allowance for Loan Losses and Impaired Loans” for more information on what we consider to be a TDR. For TDR's or substandard loans deemed to be impaired, a specific ALL allocation may be established so that the loan is reported, net, at the lower of (a) its outstanding principal balance; (b) the present value of the loan's estimated future cash flows using the loan’s existing rate; or (c) at the fair value of any loan collateral, less estimated disposal costs, if repayment is expected solely from the underlying collateral of the loan. For TDRs less than 90+ days past due, and certain substandard loans that are less than 90+ days delinquent, the likelihood of the loan migrating to over 90 days past due is also taken into account when determining the specific ALL allocation for these particular loans. Large groups of smaller balance homogeneous loans, such as non-TDR commercial, consumer and residential real estate loans, are collectively evaluated for ALL purposes, and accordingly, are not separately identified for ALL disclosures.
Loan and Debt Securities Acquired with Deteriorated Credit Quality	Acquired Loans— Loans acquired in connection with acquisitions are recorded at their acquisition-date fair value with no carryover of related allowance for credit losses. Any allowance for loan loss on these pools reflect only losses incurred after the acquisition (meaning the present value of all cash flows expected at acquisition that ultimately are not to be received). Determining the fair value of the acquired loans involves estimating the principal and interest cash flows expected to be collected on the loans and discounting those cash flows at a market rate of interest. Management considers a number of factors in evaluating the acquisition-date fair value including the remaining life of the acquired loans, delinquency status, estimated prepayments, payment options and other loan features, internal risk grade, estimated value of the underlying collateral and interest rate environment. Acquired loans that met the criteria for nonaccrual of interest prior to the acquisition may be considered performing upon acquisition, regardless of whether the customer is contractually delinquent, if we can reasonably estimate the timing and amount of the expected cash flows on such loans and if we expect to fully collect the new carrying value of the loans. As such, we may no longer consider the loan to be nonaccrual or nonperforming and may accrue interest on these loans, including the impact of any accretable yield. Loans acquired with deteriorated credit quality are accounted for in accordance with Accounting Standards Codification (“ASC”) 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality (ASC 310-30) if, at acquisition, the loans have evidence of credit quality deterioration since origination and it is probable that all contractually required payments will not be collected. At acquisition, the Company considers several factors as indicators that an acquired loan has evidence of deterioration in credit quality. These factors include loans 90 days or more past due, loans with an internal risk grade of substandard or below, loans classified as non-accrual by the acquired institution, and loans that have been previously modified in a troubled debt restructuring. Under the ASC 310-30 model, the excess of cash flows expected to be collected at acquisition over recorded fair value is referred to as the accretable yield and is the interest component of expected cash flow. The accretable yield is recognized into income over the remaining life of the loan if the timing and/or amount of cash flows expected to be collected can be reasonably estimated (the accretion method). If the timing or amount of cash flows expected to be collected cannot be reasonably estimated, the cost recovery method of income recognition is used. The difference between the loan’s total scheduled principal and interest payments over all cash flows expected to be collected at acquisition, considering the impact of prepayments, is referred to as the non-accretable difference. The non-accretable difference represents contractually required principal and interest payments which the Company does not expect to collect. Over the life of the loan, management continues to estimate cash flows expected to be collected. Decreases in expected cash flows are recognized as impairments through a charge to the provision for loan losses resulting in an increase in the allowance for loan losses. Subsequent improvements in cash flows result in first, reversal of existing valuation allowances recognized subsequent to acquisition, if any, and next, an increase in the amount of accretable yield to be subsequently recognized in interest income on a prospective basis over the loan’s remaining life. Acquired loans that were not individually determined to be purchased with deteriorated credit quality are accounted for in accordance with ASC 310-20, Nonrefundable Fees and Other Costs (ASC 310-20), whereby the premium or discount derived from the fair market value adjustment, on a loan-by-loan or pooled basis, is recognized into interest income on a level yield basis over the remaining expected life of the loan or pool.
Loans Held for Sale	Loans Held for Sale — Loans held for sale are those loans the Company has the intent to sell in the foreseeable future. They are carried at the lower of aggregate cost or fair value. Gains and losses on sales of loans are recognized at settlement dates, and are determined by the difference between the sales proceeds and the carrying value of the loans after allocating costs to servicing rights retained. All sales are made without recourse. Interest rate lock commitments on mortgage loans to be funded and sold are valued at fair value, and are included in other assets or liabilities, if material.
Non-marketable Equity Securities	Non-marketable Equity Securities — Non-marketable equity securities are comprised of Federal Home Loan Bank (FHLB) stock and Federal Reserve Bank (FRB) stock, and are carried at cost. The Bank is a member of the FHLB system. Members are required to own a certain amount of FHLB stock based on the Bank’s level of borrowings from the FHLB and other factors, and may invest in additional amounts of FHLB stock. FHLB stock is carried at cost, classified as a restricted security, and periodically evaluated for impairment based on the ultimate recovery of par value. The determination of whether a decline affects the ultimate recovery is influenced by criteria such as: (1) the significance of the decline in net assets of the FHLB as compared to the capital stock amount and length of time a decline has persisted; (2) the impact of legislative and regulatory changes on the FHLB; and (3) the liquidity position of the FHLB. Cash dividends are reported as income. FHLB stock is evaluated quarterly for impairment. Quarterly cash dividends are paid on FHLB stock owned by members as a condition for required membership and also paid on stock owned by members based on activity. The following table presents the membership and activity stock quarterly cash dividend annualized rates paid during fiscal 2017 : Annualized Dividend Rate Quarterly Dividend Payment Date Membership Stock Activity Stock November 2016 0.60% 2.80% February 2017 0.85% 3.00% May 2017 1.05% 3.15% August 2017 1.25% 3.30% Based on management’s quarterly evaluation, no impairment has been recorded on these securities. As a National Banking Association, the Bank must be a member of the Federal Reserve system. Each member bank is required to subscribe to Federal Reserve Stock in an amount equal to 6 percent of its capital and surplus. Although the par value of the stock is $100 per share, banks (including the Bank) pay only $50 per share at the time of purchase, with the understanding that the other half of the subscription amount is subject to call at any time. Dividends are paid at the statutory rate of 6 percent per annum, or $1.50 per share semi-annually on the last business day of June and December.
Foreclosed and Repossessed Assets, net	Foreclosed and Repossessed Assets, net – Assets acquired through foreclosure or repossession are initially recorded at fair value, less estimated costs to sell, which establishes a new cost basis. If the fair value declines subsequent to foreclosure or repossession, a valuation allowance is recorded through expense. Costs incurred after acquisition are expensed and are included in non-interest expense, other in the Consolidated Statements of Operations.
Transfers of Financial Assets	Transfers of financial assets— Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the entity, (2) the transferee obtains the right, free of conditions that constrain it from taking advantage of that right, to pledge or exchange the transferred assets, and (3) the entity does not maintain effective control over the transferred assets through an agreement to repurchase them before maturity.
Goodwill	Goodwill and other intangible assets— The Company accounts for goodwill and other intangible assets in accordance with ASC Topic 350, "Intangibles - Goodwill and Other." The Company records the excess of the cost of acquired entities over the fair value of identifiable tangible and intangible assets acquired, less liabilities assumed, as goodwill. The Company amortizes acquired intangible assets with definite useful economic lives over their useful economic lives utilizing the straight-line method. On a periodic basis, management assesses whether events or changes in circumstances indicate that the carrying amounts of the intangible assets may be impaired. The Company does not amortize goodwill and any acquired intangible asset with an indefinite useful economic life, but reviews them for impairment at a reporting unit level on an annual basis, or when events or changes in circumstances indicate that the carrying amounts may be impaired. A reporting unit is defined as any distinct, separately identifiable component of the Company’s one operating segment for which complete, discrete financial information is available and reviewed regularly by the segment’s management. The Company has one reporting unit as of September 30, 2017 which is related to its banking activities. The Company has performed the required goodwill impairment test and has determined that goodwill was not impaired as of September 30, 2017.
Mortgage Servicing Rights	Mortgage Servicing Rights— Mortgage servicing rights ("MSR") assets initially arose as a result of the WFC merger. WFC had retained the right to service certain loans sold in the secondary market. The Company continues to sell loans to investors in the secondary market and generally retains the rights to service mortgage loans sold to others. MSR assets are initially measured at fair value; assessed at least annually for impairment; carried at the lower of the initial capitalized amount, net of accumulated amortization, or estimated fair value. MSR assets are amortized in proportion to and over the period of estimated net servicing income, with the amortization recorded in non-interest expense in the consolidated statement of operations. The valuation of MSRs and related amortization thereon are based on numerous factors, assumptions and judgments, such as those for: changes in the mix of loans, interest rates, prepayment speeds, and default rates. Changes in these factors, assumptions and judgments may have a material effect on the valuation and amortization of MSRs. Although management believes that the assumptions used to evaluate the MSRs for impairment are reasonable, future adjustment may be necessary if future economic conditions differ substantially from the economic assumptions used to determine the value of MSRs.
Office Properties and Equipment	Office Properties and Equipment— Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation. Maintenance and repair costs are charged to expense as incurred. Gains or losses on disposition of office properties and equipment are reflected in income. Buildings and related components are depreciated using the straight-line method with useful lives ranging from 10 to 40 years. Furniture, fixtures and equipment are depreciated using the straight-line (or accelerated) method with useful lives ranging from 3 to 10 years. Leasehold improvements are depreciated using the straight-line (or accelerated) method with useful lives based on the lesser of (a) the estimated life of the lease, or (b) the estimated useful life of the leasehold improvement.
Interest Bearing Deposits	Interest Bearing Deposits— Other interest bearing deposits are certificate of deposit investments made by the Bank with other financial institutions that are carried at cost. The weighted average months to maturity of the interest bearing deposits is 21.89 months . Balances over $250 in those institutions are not insured by the FDIC and therefore pose a potential risk in the event the institution were to fail.
Debt issuance costs	Debt and equity issuance costs— Debt issuance costs, which consist primarily of fees paid to note lenders, are deferred and included in other borrowings in the consolidated balance sheet. Debt issuance costs are amortized over the contractual term of the corresponding debt, as a component of interest expense on other borrowed funds in the consolidated statement of operations.
Advertising Costs, Marketing and Public Relations Expense	Advertising, Marketing and Public Relations Expense— The Company expenses all advertising, marketing and public relations costs as they are incurred.
Income Taxes	Income Taxes – The Company accounts for income taxes in accordance with the Financial Accounting Standards Board (FASB) Accounting Standards Codification (“ASC”) Topic 740, “Income Taxes.” Under this guidance, deferred taxes are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates that will apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized as income or expense in the period that includes the enactment date. See Note 14, "Income Taxes" for details on the Company’s income taxes. The Company regularly reviews the carrying amount of its net deferred tax assets to determine if the establishment of a valuation allowance is necessary. If based on the available evidence, it is more likely than not that all or a portion of the Company’s net deferred tax assets will not be realized in future periods, a deferred tax valuation allowance would be established. Consideration is given to various positive and negative factors that could affect the realization of the deferred tax assets. In evaluating this available evidence, management considers, among other things, historical performance, expectations of future earnings, the ability to carry back losses to recoup taxes previously paid, the length of statutory carry forward periods, any experience with utilization of operating loss and tax credit carry forwards not expiring, tax planning strategies and timing of reversals of temporary differences. Significant judgment is required in assessing future earnings trends and the timing of reversals of temporary differences. Accordingly, the Company’s evaluation is based on current tax laws as well as management’s expectations of future performance.
Revenue Recognition	Revenue Recognition - The Company recognizes revenue in the consolidated statements of operations as it is earned and when collectability is reasonably assured. The primary source of revenue is interest income from interest earning assets, which is recognized on the accrual basis of accounting using the effective interest method. The recognition of revenues from interest earning assets is based upon formulas from underlying loan agreements, securities contracts or other similar contracts. Non-interest income is recognized on the accrual basis of accounting as services are provided or as transactions occur. Non-interest income includes fees from brokerage and advisory service, deposit accounts, merchant services, ATM and debit card fees, mortgage banking activities, and other miscellaneous services and transactions. Commission revenue is recognized as of the effective date of the insurance policy or the date the customer is billed, whichever is later. The Company also receives contingent commissions from insurance companies which are based on the overall profitability of their relationship based primarily on the loss experience of the insurance placed by the Company. Contingent commissions from insurance companies are recognized when determinable. Commission revenue is included in other non-interest income in the consolidated statement of operations.
Earnings Per Share	Earnings Per Share – Basic earnings per common share is net income or loss divided by the weighted average number of common shares outstanding during the period. Diluted earnings per common share includes the dilutive effect of additional potential common shares issuable during the period, consisting of stock options outstanding under the Company’s stock incentive plans that have an exercise price that is less than the Company's stock price on the reporting date.
Loss Contingencies	Loss Contingencies— Loss contingencies, including claims and legal actions arising in the normal course of business, are recorded as liabilities when the likelihood of loss is probable and an amount of loss can be reasonably estimated.
Off-Balance-Sheet Financial Instruments	Off-Balance-Sheet Financial Instruments— In the ordinary course of business, the Bank has entered into off-balance sheet financial instruments consisting of commitments to extend credit and commitments under lines of credit arrangements, issued to meet customer financial needs. Such financial instruments are recorded in the financial statements when they become payable. See Note 11, "Commitments and Contingencies" in Notes to Consolidated Financial Statements.
Derivatives--Rate-lock Commitments and Forward Sale Agreements	Derivatives--Rate-lock Commitments and Forward Sale Agreements — The Company enters into commitments to originate loans, whereby the interest rate on the loan is determined prior to funding (rate-lock commitment). Rate-lock commitments on mortgage loans held for sale are derivative instruments. Derivative instruments are carried on the consolidated balance sheets at fair value, and changes in the fair value thereof are recognized in the consolidated statements of income. The Company originates single-family residential loans for sale, pursuant to programs primarily with the Federal Home Loan Mortgage Corporation (FHLMC) and other similar third parties. In connection with these programs, at the time the Company initially issues a loan commitment, it does not lock in a specific interest rate. At the time the interest rate is locked in by the borrower, the Company concurrently enters into a forward loan sale agreement with the prospective loan purchaser, at a specific price, in order to manage the interest rate risk inherent to the rate-lock commitment. The forward sale agreement also meets the definition of a derivative instrument. Any change in the fair value of the loan commitment after the borrower locks in the interest rate is substantially offset by the corresponding change in the fair value of the forward loan sale agreement related to such loan. The period from the time the borrower locks in the interest rate, to the time the Company funds the loan and sells the loan to a third party, is generally, approximately 60 days. The fair value of each instrument will rise and fall in response to changes in market interest rates, subsequent to the dates the interest rate locks and forward sale agreements are entered into. In the event that interest rates rise after the Company enters into an interest rate lock, the fair value of the loan commitment will decline. However, the fair value of the forward loan sale agreement related to such loan commitment should increase by substantially the same amount, effectively eliminating the Company's interest rate and price risks.
Other Comprehensive Income	Other Comprehensive Income — Accumulated and other comprehensive income or loss is comprised of the unrealized and realized gains and losses on securities available for sale and pension liability adjustments, net of tax, and is shown on the accompanying Consolidated Statements of Other Comprehensive Income.
Operating Segments	Operating Segments— While our chief decision makers monitor the revenue streams of the various banking products and services, operations are managed and financial performance is evaluated on a Company-wide basis. Accordingly, all of the Company’s banking operations are considered by management to be aggregated in one reportable operating segment.
Bank Owned Life Insurance	Bank Owned Life Insurance (BOLI) - The Bank invests in bank-owned life insurance (BOLI) as a source of funding for employee benefit expenses. BOLI involves the purchasing of life insurance by the Bank on a select group of employees. The Bank is the owner and beneficiary of the policies. Income from the increase in cash surrender value of the policies as well as the receipt of death benefits is included in non-interest income on the consolidated statement of income
Reclassifications	Reclassifications – Certain items previously reported were reclassified for consistency with the current presentation.
Recent Accounting Standards	Recent Accounting Standards - In August, 2016 the FASB issued Accounting Standards Update ("ASU") 2016-15, “Statement of Cash Flows (Topic 230), Classification of Certain Cash Receipts and Cash Payments”. ASU 2016-15 is intended to provide specific guidance on how certain cash receipts and cash payments are presented and classified in the statement of cash flows under Topic 230, in order to reduce existing diversity in practice. For public entities, ASU 2016-15 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted. The Company has not yet evaluated the potential effects of adopting ASU 2016-15 on the Company’s consolidated results of operations, financial position or cash flows. In June, 2016 the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments.” ASU 2016-13 is intended to provide financial statement users with more decision-useful information about the excepted credit losses on financial instruments and other commitments to extend credit. For public entities, ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company has not yet evaluated the potential effects of adopting ASU 2016-13 on the Company’s consolidated results of operations, financial position or cash flows. In May, 2016, the FASB issued ASU 2016-12, “Revenue from Contracts with Customers (Topic 606); Narrow-Scope Improvements and Practical Expedients.” ASU 2016-12 is intended to address certain specific issues identified by the FASB-IASB Joint Transition Resource Group for Revenue Recognition with respect to ASU 2014-09, “Revenue from Contracts with Customers (Topic 606).” For public entities, ASUs 2016-12 and 2014-09 are effective on a retrospective basis for the annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Early adoption is not permitted. Based on our evaluation under the current guidance, we estimate that substantially all of our interest income and non-interest income will not be impacted by the adoption of these standards, because either the revenue from those contracts with customers is covered by other guidance in U.S. GAAP or the revenue recognition outcomes anticipated with the adoption of these standards will likely be similar to our current revenue recognition practices. The Company evaluated certain non-interest revenue streams, including deposit related fees, service charges and interchange fees, to determine the potential impact of the guidance on the Company's consolidated financial statements. The Company is expected to use the modified retrospective method for transition in which the cumulative effect will be recognized at the date of adoption with no restatement of comparative periods presented. The Company expects additional financial statement disclosures of non-interest income revenue streams and associated internal controls to be implemented along with adoption of these standards. In addition, we are reviewing our business processes, systems and controls to support recognition and disclosures under the new standard. The Company expects that the adoption of ASUs 2016-12 and 2014-09 will have no material effect on the Company's consolidated results of operations, financial position or cash flows. In March, 2016, the FASB issued ASU 2016-09 - "Compensation-Stock Compensation” (Topic 718) Improvements to Employee Share-Based Payment Accounting. ASU 2016-09 is intended to simplify certain areas of share-based payment transaction accounting, including the income tax consequences, equity or liability classification of certain share awards, and classification on the statement of cash flows. ASU 2016-09 is effective for the annual periods, and interim periods within those annual periods, beginning after December 15, 2016. Early adoption is permitted. The Company expects the adoption of ASU 2016-09 to have no material effect on the Company's results of operations, financial position or cash flows. In February, 2016, the FASB issued ASU 2016-02 - "Leases” (Topic 842). ASU 2016-02 is intended to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. ASU 2016-02 is effective for the annual periods, and interim periods within those annual periods, beginning after December 15, 2018. Early adoption is permitted. The Company has not yet evaluated the impact of the adoption of ASU 2016-02 on the Company's results of operations, financial position or cash flows. In January, 2016, the FASB issued ASU 2016-01 - "Recognition and Measurement of Financial Assets and Financial Liabilities” (Subtopic 825-10). ASU 2016-01 is intended to address certain aspects of recognition, measurement, presentation and disclosure of financial instruments. For public entities, ASU 2016-01 is effective for the annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Early adoption is not permitted, except for certain provisions of ASU 2016-01, which are not applicable to the Company. The Company expects the adoption of ASU 2016-01 to have no material effect on the Company's results of operations, financial position or cash flows. In September 2015, the FASB issued ASU 2015-16, Business Combination (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments. The ASU requires adjustments to provisional amounts that are identified during the measurement period to be recognized in the reporting period in which the adjustment amounts are determined. This includes any effect on earnings of changes in depreciation, amortization, or other income effects as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. In addition, the amendments in the ASU would require an entity to disclose (either on the face of the income statement or in the notes) the nature and amount of measurement-period adjustments recognized in the current period, including separately the amounts in current-period income statement line items that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. The amendments are effective for public business entities for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2015 and its adoption did not have a significant impact on the Company’s consolidated financial statements

Nature of Business and Summar28

Nature of Business and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
Dividends	The following table presents the membership and activity stock quarterly cash dividend annualized rates paid during fiscal 2017 : Annualized Dividend Rate Quarterly Dividend Payment Date Membership Stock Activity Stock November 2016 0.60% 2.80% February 2017 0.85% 3.00% May 2017 1.05% 3.15% August 2017 1.25% 3.30%

Acquisitions (Tables)

Acquisitions (Tables)	12 Months Ended
	Sep. 30, 2017
Business Combinations [Abstract]
Business acquisition, pro forma information	The following pro forma financial information for the periods presented reflects our estimated consolidated pro forma results of operations as if the CBN acquisition occurred on October 1, 2015, unadjusted for potential cost savings and other business synergies we expect to receive as a result of the acquisition: Citizens Community Bancorp, Inc. Community Bank of Northern Wisconsin Pro Forma Adjustments Pro Forma Combined Year ended September 30, 2016 Revenue (net interest income and non-interest income) $ 18,566 $ 5,180 $ (532 ) $ 23,214 Net income attributable to common stockholders 2,806 1,418 (623 ) 3,601 Earnings per share--basic 0.54 0.69 Earnings per share-diluted 0.54 0.69 The following pro forma financial information for the periods presented reflects our estimated consolidated pro forma results of operations as if the WFC acquisition occurred on October 1, 2016, not considering potential cost savings and other business synergies we expect to receive as a result of the acquisition: Citizens Community Bancorp, Inc. Wells Financial Corporation Pro Forma Adjustments Pro Forma Combined Year ended September 30, 2017 Revenue (net interest income and non-interest income) $ 27,019 $ 11,758 $ (680 ) $ 38,097 Net income attributable to common stockholders 2,499 508 2,454 5,461 Earnings per share--basic 0.47 0.92 Earnings per share-diluted 0.46 0.91 Year ended September 30, 2016 Revenue (net interest income and non-interest income) 23,992 13,452 (749 ) 36,695 Net income attributable to common stockholders 2,573 2,387 (845 ) 4,115 Earnings per share--basic 0.49 0.71 Earnings per share-diluted 0.49 0.71
Schedule of recognized identified assets acquired and liabilities assumed	The following table summarizes the amounts recorded on the consolidated balance sheets as of each of the acquisition dates in conjunction with the acquisitions discussed above: Wells Financial Corporation Community Bank of Northern Wisconsin Fair value of consideration paid $ 40,442 $ 17,447 Fair value of identifiable assets acquired: Cash and cash equivalents 4,742 28,104 Other interest bearing deposits 16,871 — Securities 31,758 21,825 Loans 187,079 111,740 Property and equipment 5,011 2,741 Core deposit and other intangible assets 4,178 607 Other assets 6,834 2,452 Total identifiable assets acquired 256,473 167,469 Fair value of liabilities assumed: Deposits 217,905 151,020 Borrowings 3,320 3,000 Other liabilities 587 230 Total liabilities assumed 221,812 154,250 Fair value of net identifiable assets acquired 34,661 13,219 Goodwill recognized $ 5,781 $ 4,228

Fair Value Accounting (Tables)

Fair Value Accounting (Tables)	12 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Assets measured on a recurring basis	The following tables present the financial instruments measured at fair value on a recurring basis as of September 30, 2017 and 2016 . Fair Value Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) September 30, 2017 Investment securities: U.S. government agency obligations $ 18,041 $ — $ 18,041 $ — Obligations of states and political subdivisions 35,795 — 35,795 — Mortgage-backed securities 36,474 — 36,474 — Equity securities 230 — 230 — Corporate debt securities 5,343 — 5,343 — Total $ 95,883 $ — $ 95,883 $ — September 30, 2016 Investment securities: U.S. government agency obligations $ 16,407 $ — $ 16,407 $ — Obligations of states and political subdivisions 34,012 — 34,012 — Mortgage-backed securities 29,247 — 29,247 — Equity securities 81 — 81 — Trust Preferred Securities 376 — — 376 Total $ 80,123 $ — $ 79,747 $ 376
Assets measured on recurring and nonrecurring basis, level 3	The following table presents additional information about the security available for sale measured at fair value on a recurring basis and for which the Company utilized significant unobservable inputs (Level 3 inputs) to determine fair value for the year ended September 30, 2017 and 2016 : Fair value measurements using significant unobservable inputs (Level 3) Securities available for sale 2017 2016 Balance, beginning of year $ 376 $ — Payments received (500 ) — Total gains or losses (realized/unrealized) Included in earnings 124 — Included in other comprehensive income — — Transfers in and/or out of Level 3 — 376 Balance, end of year $ — $ 376
Assets measured on a nonrecurring basis	The following tables present the financial instruments measured at fair value on a nonrecurring basis as of September 30, 2017 and 2016 : Fair Value Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) September 30, 2017 Foreclosed and repossessed assets, net $ 6,017 $ — $ — $ 6,017 Impaired loans with allocated allowances 1,490 — — 1,490 Mortgage servicing rights 1,951 1,951 Total $ 9,458 $ — $ — $ 9,458 September 30, 2016 Foreclosed and repossessed assets, net $ 776 $ — $ — $ 776 Impaired loans with allocated allowances 2,412 — — 2,412 Total $ 3,188 $ — $ — $ 3,188
Assets measured on recurring and nonrecurring basis	The following table represents additional quantitative information about assets measured at fair value on a recurring and nonrecurring basis and for which we have utilized Level 3 inputs to determine their fair value at September 30, 2017 . Fair Value Valuation Techniques (1) Significant Unobservable Inputs (2) Range September 30, 2017 Foreclosed and repossessed assets, net $ 6,017 Appraisal value Estimated costs to sell 10 - 15% Impaired loans with allocated allowances $ 1,490 Appraisal value Estimated costs to sell 10 - 15% Mortgage servicing rights $ 1,951 Discounted cash flows Discount rates 9.5% - 12.5% September 30, 2016 Foreclosed and repossessed assets, net $ 776 Appraisal value Estimated costs to sell 10 - 15% Impaired loans with allocated allowances $ 2,412 Appraisal value Estimated costs to sell 10 - 15% (1) Fair value is generally determined through independent third-party appraisals of the underlying collateral, which generally includes various level 3 inputs which are not observable. (2) The fair value basis of impaired loans and real estate owned may be adjusted to reflect management estimates of disposal costs including, but not limited to, real estate brokerage commissions, legal fees, and delinquent property taxes.
Carrying amount And estimated fair value of financial instruments	The carrying amount and estimated fair value of the Company's financial instruments as of the dates indicated below were as follows: September 30, 2017 September 30, 2016 Valuation Method Used Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value Financial assets: Cash and cash equivalents (Level I) $ 41,677 $ 41,677 $ 10,046 $ 10,046 Interest-bearing deposits (Level I) 8,148 8,143 745 760 Securities available for sale "AFS" See above 95,883 95,883 80,123 80,123 Securities held to maturity "HTM" (Level II) 5,453 5,605 6,669 6,944 Non-marketable equity securities, at cost (Level II) 7,292 7,292 5,034 5,034 Loans receivable, net (Level III) 727,053 737,119 568,371 585,679 Loans held for sale (Level II) 2,334 2,334 — — Mortgage servicing rights (Level III) 1,886 1,951 — — Accrued interest receivable (Level I) 3,291 3,291 2,032 2,032 Financial liabilities: Deposits (Level III) $ 742,504 $ 746,025 $ 557,677 $ 561,919 Federal Home Loan Bank advances (Level III) 90,000 89,998 59,291 59,557 Other borrowings (Level I) 30,319 30,319 11,000 11,000 Other liabilities (Level I) 4,131 4,131 3,353 3,353 Accrued interest payable (Level I) 227 227 122 122

Loans, Allowance for Loan Los31

Loans, Allowance for Loan Losses and Impaired Loans (Tables)	12 Months Ended
	Sep. 30, 2017
Receivables [Abstract]
Major classifications of loans	Loans by classes within portfolio segments as of September 30, 2017 and 2016 , respectively, were as follows: September 30, 2017 September 30, 2016 Originated Loans: Residential real estate: One to four family $ 132,380 $ 160,961 Purchased HELOC loans 18,071 — Commercial/Agricultural real estate: Commercial real estate 97,155 58,768 Agricultural real estate 10,628 3,418 Multi-family real estate 24,486 18,935 Construction and land development 12,399 12,977 Consumer non-real estate: Originated indirect paper 85,732 119,073 Purchased indirect paper 29,555 49,221 Other Consumer 14,496 18,926 Commercial/Agricultural non-real estate: Commercial non-real estate 35,198 17,969 Agricultural non-real estate 12,493 9,994 Total originated loans $ 472,593 $ 470,242 Acquired Loans: Residential real estate: One to four family $ 97,183 $ 26,777 Commercial/Agricultural real estate: Commercial real estate 62,807 30,172 Agricultural real estate 57,374 24,780 Multi-family real estate 1,742 200 Construction and land development 7,309 3,603 Consumer non-real estate: Other Consumer 6,172 789 Commercial/Agricultural non-real estate: Commercial non-real estate 20,053 13,032 Agricultural non-real estate 11,380 4,653 Total acquired loans $ 264,020 $ 104,006 Total Loans: Residential real estate: One to four family $ 229,563 $ 187,738 Purchased HELOC loans 18,071 — Commercial/Agricultural real estate: Commercial real estate 159,962 88,940 Agricultural real estate 68,002 28,198 Multi-family real estate 26,228 19,135 Construction and land development 19,708 16,580 Consumer non-real estate: Originated indirect paper 85,732 119,073 Purchased indirect paper 29,555 49,221 Other Consumer 20,668 19,715 Commercial/Agricultural non-real estate: Commercial non-real estate 55,251 31,001 Agricultural non-real estate 23,873 14,647 Gross loans $ 736,613 $ 574,248 Less: Unearned net deferred fees and costs and loans in process 1,471 1,915 Unamortized discount on acquired loans (5,089 ) (1,724 ) Allowance for loan losses (5,942 ) (6,068 ) Loans receivable, net $ 727,053 $ 568,371
Schedule of loans by risk rating	Below is a breakdown of loans by risk rating as of September 30, 2017 : 1 to 5 6 7 8 9 TOTAL Originated Loans: Residential real estate: One to four family $ 130,837 $ — $ 1,543 $ — $ — $ 132,380 Purchased HELOC loans 18,071 — — — — 18,071 Commercial/Agricultural real estate: Commercial real estate 96,953 49 153 — — 97,155 Agricultural real estate 10,051 497 80 — — 10,628 Multi-family real estate 24,338 — 148 — — 24,486 Construction and land development 12,399 — — — — 12,399 Consumer non-real estate: Originated indirect paper 85,330 8 394 — — 85,732 Purchased indirect paper 29,555 — — — — 29,555 Other Consumer 14,361 — 135 — — 14,496 Commercial/Agricultural non-real estate: Commercial non-real estate 35,102 — 96 — — 35,198 Agricultural non-real estate 10,798 708 987 — — 12,493 Total originated loans $ 467,795 $ 1,262 $ 3,536 $ — $ — $ 472,593 Acquired Loans: Residential real estate: One to four family $ 94,932 $ 873 $ 1,378 $ — $ — $ 97,183 Commercial/Agricultural real estate: Commercial real estate 57,795 1,814 3,198 — — 62,807 Agricultural real estate 51,516 266 5,592 — — 57,374 Multi-family real estate 1,519 — 223 — — 1,742 Construction and land development 6,739 — 570 — — 7,309 Consumer non-real estate: Other Consumer 6,130 — 42 — — 6,172 Commercial/Agricultural non-real estate: Commercial non-real estate 18,257 372 1,424 — — 20,053 Agricultural non-real estate 11,259 28 93 — — 11,380 Total acquired loans $ 248,147 $ 3,353 $ 12,520 $ — $ — $ 264,020 Total Loans: Residential real estate: One to four family $ 225,769 $ 873 $ 2,921 $ — $ — $ 229,563 Purchased HELOC loans 18,071 — — — — 18,071 Commercial/Agricultural real estate: Commercial real estate 154,748 1,863 3,351 — — 159,962 Agricultural real estate 61,567 763 5,672 — — 68,002 Multi-family real estate 25,857 — 371 — — 26,228 Construction and land development 19,138 — 570 — — 19,708 Consumer non-real estate: Originated indirect paper 85,330 8 394 — — 85,732 Purchased indirect paper 29,555 — — — — 29,555 Other Consumer 20,491 — 177 — — 20,668 Commercial/Agricultural non-real estate: Commercial non-real estate 53,359 372 1,520 — — 55,251 Agricultural non-real estate 22,057 736 1,080 — — 23,873 Gross loans $ 715,942 $ 4,615 $ 16,056 $ — $ — $ 736,613 Less: Unearned net deferred fees and costs and loans in process 1,471 Unamortized discount on acquired loans (5,089 ) Allowance for loan losses (5,942 ) Loans receivable, net $ 727,053 Below is a breakdown of loans by risk rating as of September 30, 2016 : 1 to 5 6 7 8 9 TOTAL Originated Loans: Residential real estate: One to four family $ 159,244 $ — $ 1,632 $ — $ 85 $ 160,961 Commercial/Agricultural real estate: Commercial real estate 58,768 — — — — 58,768 Agricultural real estate 3,418 — — — — 3,418 Multi-family real estate 18,935 — — — — 18,935 Construction and land development 12,977 — — — — 12,977 Consumer non-real estate: Originated indirect paper 118,809 10 254 — — 119,073 Purchased indirect paper 49,221 — — — — 49,221 Other Consumer 18,889 — 37 — — 18,926 Commercial/Agricultural non-real estate: Commercial non-real estate 17,790 — 179 — — 17,969 Agricultural non-real estate 9,994 — — — — 9,994 Total originated loans $ 468,045 $ 10 $ 2,102 $ — $ 85 $ 470,242 Acquired Loans: Residential real estate: One to four family $ 25,613 $ 603 $ 561 $ — $ — $ 26,777 Commercial/Agricultural real estate: Commercial real estate 29,607 167 398 — — 30,172 Agricultural real estate 21,922 11 2,847 — — 24,780 Multi-family real estate 200 — — — — 200 Construction and land development 3,487 — 116 — — 3,603 Consumer non-real estate: Other Consumer 746 11 32 — — 789 Commercial/Agricultural non-real estate: Commercial non-real estate 13,010 11 11 — — 13,032 Agricultural non-real estate 4,546 7 100 — — 4,653 Total acquired loans $ 99,131 $ 810 $ 4,065 $ — $ — $ 104,006 Total Loans: Residential real estate: One to four family $ 184,857 $ 603 $ 2,193 $ — $ 85 $ 187,738 Commercial/Agricultural real estate: Commercial real estate 88,375 167 398 — — 88,940 Agricultural real estate 25,340 11 2,847 — — 28,198 Multi-family real estate 19,135 — — — — 19,135 Construction and land development 16,464 — 116 — — 16,580 Consumer non-real estate: Originated indirect paper 118,809 10 254 — — 119,073 Purchased indirect paper 49,221 — — — — 49,221 Other Consumer 19,635 11 69 — — 19,715 Commercial/Agricultural non-real estate: Commercial non-real estate 30,800 11 190 — — 31,001 Agricultural non-real estate 14,540 7 100 — — 14,647 Gross loans $ 567,176 $ 820 $ 6,167 $ — $ 85 $ 574,248 Less: Unearned net deferred fees and costs and loans in process 1,915 Unamortized discount on acquired loans (1,724 ) Allowance for loan losses (6,068 ) Loans receivable, net $ 568,371
A summary of the changes in loans	A summary of the changes in those loans during the last two fiscal years is as follows: September 30, 2017 2016 Balance—beginning of year $ 221 $ 232 New loan originations 2 1 Repayments (13 ) (12 ) Previously originated loans for new director 386 — Balance—end of year $ 596 $ 221 Available and unused lines of credit $ 18 $ 18
Changes in a specific component on impaired loans and a general component for non-impaired loans for the periods	Changes in the ALL by loan type for the periods presented below were as follows: Residential Real Estate Commercial/Agriculture Real Estate Consumer Non-real Estate Commercial/Agricultural Non-real Estate Unallocated Total Year Ended September 30, 2017: Allowance for Loan Losses: Beginning balance, October 1, 2016 $ 2,039 $ 1,883 $ 1,466 $ 652 $ 28 $ 6,068 Charge-offs (233 ) — (389 ) (9 ) — (631 ) Recoveries 14 — 171 1 — 186 Provision 81 130 59 41 8 319 Segment reclassifications (443 ) 510 (371 ) 212 92 — Total Allowance on originated loans $ 1,458 $ 2,523 $ 936 $ 897 $ 128 $ 5,942 Purchased credit impaired loans — — — — — — Other acquired loans — — — — — — Total Allowance on acquired loans $ — $ — $ — $ — $ — $ — Ending balance, September 30, 2017 $ 1,458 $ 2,523 $ 936 $ 897 $ 128 $ 5,942 Allowance for Loan Losses at September 30, 2017: Amount of allowance for loan losses arising from loans individually evaluated for impairment $ 214 $ — $ 64 $ 23 $ — $ 301 Amount of allowance for loan losses arising from loans collectively evaluated for impairment $ 1,244 $ 2,523 $ 872 $ 874 $ 128 $ 5,641 Loans Receivable as of September 30, 2017: — Ending balance of originated loans $ 150,451 $ 144,668 $ 126,165 $ 47,691 $ — $ 468,975 Ending balance of purchased credit-impaired loans 586 7,995 — 3,454 — 12,035 Ending balance of other acquired loans 96,597 121,237 6,172 27,979 251,985 Ending balance of loans $ 247,634 $ 273,900 $ 132,337 $ 79,124 $ — $ 732,995 Ending balance: individually evaluated for impairment $ 4,021 $ 996 $ 702 $ 1,791 $ — $ 7,510 Ending balance: collectively evaluated for impairment $ 243,613 $ 272,904 $ 131,635 $ 77,333 $ — $ 725,485 Residential Real Estate Commercial/Agriculture Real Estate Consumer Non-real Estate Commercial/Agricultural Non-real Estate Unallocated Total Year ended September 30, 2016 Allowance for Loan Losses: Beginning balance, October 1, 2015 $ 2,364 $ 989 $ 1,620 $ 1,271 $ 252 $ 6,496 Charge-offs (140 ) — (460 ) (118 ) — (718 ) Recoveries 11 — 204 — — 215 Provision 30 10 35 — — 75 Segment reclassifications (226 ) 884 67 (501 ) (224 ) — Total allowance on originated loans $ 2,039 $ 1,883 $ 1,466 $ 652 $ 28 $ 6,068 Purchased credit impaired loans $ — $ — $ — $ — $ — $ — Other acquired loans $ — $ — $ — $ — $ — $ — Total allowance on acquired loans $ — $ — $ — $ — $ — $ — Ending balance, September 30, 2016 $ 2,039 $ 1,883 $ 1,466 $ 652 $ 28 $ 6,068 Allowance for Loan Losses at September 30, 2016: Amount of allowance for loan losses arising from loans individually evaluated for impairment $ 503 $ — $ 85 $ 40 $ — $ 628 Amount of allowance for loan losses arising from loans collectively evaluated for impairment $ 1,536 $ 1,883 $ 1,381 $ 612 $ 28 $ 5,440 Loans Receivable as of September 30, 2016: Ending balance of originated loans $ 160,655 $ 92,374 $ 189,441 $ 27,963 $ — $ 470,433 Ending balance of purchased credit-impaired loans $ 577 $ 2,309 $ 4 $ 897 $ — $ 3,787 Ending balance of other acquired loans $ 26,200 $ 56,446 $ 785 $ 16,788 $ — $ 100,219 Ending balance of loans $ 187,432 $ 151,129 $ 190,230 $ 45,648 $ — $ 574,439 Ending balance: individually evaluated for impairment $ 4,640 $ — $ 578 $ 179 $ — $ 5,397 Ending balance: collectively evaluated for impairment $ 182,792 $ 151,129 $ 189,652 $ 45,469 $ — $ 569,042
Loans receivable	Loans receivable by loan type as of the end of the periods shown below were as follows: Residential Real Estate Commercial/Agriculture Real Estate Loans Consumer non-Real Estate Commercial/Agriculture non-Real Estate Totals September 30, 2017 September 30, 2016 September 30, 2017 September 30, 2016 September 30, 2017 September 30, 2016 September 30, 2017 September 30, 2016 September 30, 2017 September 30, 2016 Performing loans Performing TDR loans $ 3,085 $ 2,942 $ 1,890 $ — $ 167 $ 276 $ 88 $ — $ 5,230 $ 3,218 Performing loans other 242,198 182,747 268,619 150,181 131,695 189,653 77,213 45,370 719,725 567,951 Total performing loans 245,283 185,689 270,509 150,181 131,862 189,929 77,301 45,370 724,955 571,169 Nonperforming loans (1) Nonperforming TDR loans 593 471 — — 28 44 — — 621 515 Nonperforming loans other 1,758 1,272 3,391 948 447 257 1,823 278 7,419 2,755 Total nonperforming loans 2,351 1,743 3,391 948 475 301 1,823 278 8,040 3,270 Total loans $ 247,634 $ 187,432 $ 273,900 $ 151,129 $ 132,337 $ 190,230 $ 79,124 $ 45,648 $ 732,995 $ 574,439 (1) Nonperforming loans are either 90+ days past due or nonaccrual.
Aging analysis of the Bank real estate and consumer loans	An aging analysis of the Company’s consumer real estate, commercial/agriculture real estate, consumer and other loans and purchased third party loans as of September 30, 2017 and 2016 , respectively, was as follows: 30-59 Days Past Due 60-89 Days Past Due Greater Than 89 Days Total Past Due Current Total Loans Nonaccrual Loans Recorded September 30, 2017 Residential real estate: One to four family $ 2,811 $ 393 $ 1,228 $ 4,432 $ 225,131 $ 229,563 $ 2,200 $ 151 Purchased HELOC loans 250 — — 250 17,821 18,071 $ — — Commercial/Agricultural real estate: Commercial real estate 332 70 282 684 159,278 159,962 572 — Agricultural real estate 57 — 2,405 2,462 65,540 68,002 2,723 96 Multi-family real estate — — — — 26,228 26,228 — — Construction and land development — — — — 19,708 19,708 — — Consumer non-real estate: Originated indirect paper 426 112 123 661 85,071 85,732 74 80 Purchased indirect paper 601 305 221 1,127 28,428 29,555 — 221 Other Consumer 120 79 57 256 20,412 20,668 76 25 Commercial/Agricultural non-real estate: Commercial non-real estate 75 23 156 254 54,997 55,251 1,618 — Agricultural non-real estate 757 — 120 877 22,996 23,873 189 16 Total $ 5,429 $ 982 $ 4,592 $ 11,003 $ 725,610 $ 736,613 $ 7,452 $ 589 September 30, 2016 Residential real estate: One to four family $ 1,062 $ 892 $ 1,238 $ 3,192 $ 184,546 $ 187,738 $ 1,595 $ 123 Commercial/Agricultural real estate: Commercial real estate 33 83 367 483 88,457 88,940 483 — Agricultural real estate — — 623 623 27,575 28,198 623 — Multi-family real estate — — — — 19,135 19,135 — — Construction and land development 27 — 35 62 16,518 16,580 — — Consumer non-real estate: Originated indirect paper 204 30 122 356 118,717 119,073 158 53 Purchased indirect paper 338 286 199 823 48,398 49,221 — 199 Other Consumer 104 16 34 154 19,561 19,715 54 5 Commercial/Agricultural non-real estate: Commercial non-real estate 9 2 155 166 30,835 31,001 188 — Agricultural non-real estate — 60 90 150 14,497 14,647 90 — Total $ 1,777 $ 1,369 $ 2,863 $ 6,009 $ 568,239 $ 574,248 $ 3,191 $ 380
Bank impaired loans	A summary of the Company’s impaired loans as of September 30, 2017 and September 30, 2016 was as follows: Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized 2017 With No Related Allowance Recorded: Residential real estate $ 4,015 $ 4,015 $ — $ 3,440 $ 9 Commercial/agriculture real estate 12,626 12,626 — 4,460 2 Consumer non-real estate 433 433 — 340 16 Commercial/agricultural non-real estate 5,795 5,795 — 2,628 11 Total $ 22,869 $ 22,869 $ — $ 10,868 $ 38 With An Allowance Recorded: Residential real estate $ 1,198 $ 1,198 $ 214 $ 1,545 $ 2 Commercial/agriculture real estate — — — — — Consumer non-real estate 269 269 65 306 — Commercial/agricultural non-real estate 23 23 23 101 — Total $ 1,490 $ 1,490 $ 302 $ 1,952 $ 2 2017 Totals: Residential real estate $ 5,213 $ 5,213 $ 214 $ 4,985 $ 11 Commercial/agriculture real estate 12,626 12,626 — 4,460 2 Consumer non-real estate 702 702 65 646 16 Commercial/agricultural non-real estate 5,818 5,818 23 2,729 11 Total $ 24,359 $ 24,359 $ 302 $ 12,820 $ 40 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized 2016 With No Related Allowance Recorded: Residential real estate $ 3,807 $ 3,807 $ — $ 3,817 $ 132 Commercial/agriculture real estate 2,326 2,326 — 2,326 27 Consumer non-real estate 247 247 — 451 36 Commercial/agricultural non-real estate 1,577 1,577 — 1,577 42 Total $ 7,957 $ 7,957 $ — $ 8,171 $ 237 With An Allowance Recorded: Residential real estate $ 1,891 $ 1,891 $ 503 $ 1,808 $ 50 Commercial/agriculture real estate — — — — — Consumer non-real estate 342 342 76 339 10 Commercial/agricultural non-real estate 179 179 27 36 1 Total $ 2,412 $ 2,412 $ 606 $ 2,183 $ 61 2016 Totals: Residential real estate $ 5,698 $ 5,698 $ 503 $ 5,625 $ 182 Commercial/agriculture real estate 2,326 2,326 — 2,326 27 Consumer non-real estate 589 589 76 790 46 Commercial/agricultural non-real estate 1,756 1,756 27 1,613 43 Total $ 10,369 $ 10,369 $ 606 $ 10,354 $ 298
Troubled debt restructuring, loans by accrual status	Following is a summary of TDR loans by accrual status as of September 30, 2017 and September 30, 2016 . There were no TDR commitments or unused lines of credit as of September 30, 2017 and September 30, 2016 . September 30, 2017 2016 Troubled debt restructure loans: Accrual status $ 5,230 $ 3,218 Non-accrual status 621 515 Total $ 5,851 $ 3,733
Troubled debt restructuring	The following provides detail, including specific reserve and reasons for modification, related to loans identified as TDRs during the years ended September 30, 2017 and September 30, 2016 : Number of Contracts Modified Rate Modified Payment Modified Under- writing Other Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Specific Reserve 2017 TDRs: Residential real estate 9 $ — $ — $ 679 $ 236 $ 915 $ 915 $ 24 Commercial/Agricultural real estate 8 — — 1,822 68 1,890 1,890 — Consumer non-real estate 4 — — 4 28 32 32 — Commercial/Agricultural non-real estate 2 — — — 93 93 93 — Totals 23 $ — $ — $ 2,505 $ 425 $ 2,930 $ 2,930 $ 24 Number of Contracts Modified Rate Modified Payment Modified Under- writing Other Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Specific Reserve 2016 TDRs Residential real estate 4 $ 37 $ — $ 359 $ — $ 396 $ 396 $ 74 Commercial/Agricultural real estate — — — — — — — — Consumer non-real estate 3 — — 21 — 21 21 — Commercial/Agricultural non-real estate — — — — — — — — Totals 7 $ 37 $ — $ 380 $ — $ 417 $ 417 $ 74
Schedule of loans by loan class modified in a troubled debt restructuring	A summary of loans by loan class modified in a troubled debt restructuring as of September 30, 2017 and September 30, 2016 , and during each of the twelve months then ended, was as follows: September 30, 2017 September 30, 2016 Number of Modifications Recorded Investment Number of Modifications Recorded Investment Troubled debt restructurings: Originated loans: Residential real estate 32 $ 3,678 32 $ 3,413 Commercial/Agricultural real estate 8 1,890 — — Consumer non-real estate 20 195 21 320 Commercial/Agricultural non-real estate 2 88 — — Total originated loans 62 $ 5,851 53 $ 3,733
Schedule of restructured Loans In default	The following table provides information related to restructured loans that were considered in default as of September 30, 2017 and September 30, 2016 : September 30, 2017 September 30, 2016 Number of Modifications Recorded Investment Number of Modifications Recorded Investment Troubled debt restructurings: Residential real estate 4 $ 593 9 $ 516 Commercial/Agricultural real estate — — 6 948 Consumer non-real estate 3 28 4 43 Commercial/Agricultural non-real estate — — 2 99 Total troubled debt restructurings 7 $ 621 21 $ 1,606
Schedule of acquired loans	The outstanding balance and the carrying amount of acquired loans included in the consolidated balance sheet are as follows: September 30, 2017 Accountable for under ASC 310-30 (PCI loans) Outstanding balance 12,035 Carrying amount 9,838 Accountable for under ASC 310-20 (non-PCI loans) Outstanding balance 251,985 Carrying amount 249,093 Total acquired loans Outstanding balance 264,020 Carrying amount 258,931
Schedule of accretable yield	The following table provides changes in accretable yield for all acquired loans accounted for under ASC 310-20: 2017 2016 Balance at beginning of period $ 192 $ — Acquisitions 2,802 203 Reduction due to unexpected early payoffs — — Reclass from non-accretable difference — — Disposals/transfers — — Accretion (101 ) (11 ) Balance at end of period $ 2,893 $ 192
Schedule of purchased loans, impaired and non-impaired	The following table reflects amounts for all acquired credit impaired and acquired performing loans acquired from WFC at acquisition: Acquired Credit Impaired Loans Acquired Performing Loans Total Acquired Loans Contractually required cash flows at acquisition $ 9,182 $ 179,895 $ 189,077 Non-accretable difference (expected losses and foregone interest) (936 ) — (936 ) Cash flows expected to be collected at acquisition 8,246 179,895 188,141 Accretable yield — (2,802 ) (2,802 ) Fair value of acquired loans at acquisition $ 8,246 177,093 $ 185,339

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	12 Months Ended
	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Mortgage servicing rights Aativity	Mortgage servicing rights activity for the years ended September 30, 2017 and September 30, 2016 were as follows: Year ended September 30, 2017 2016 Balance at beginning of period $ — $ — MSR asset acquired 1,909 — MSRs capitalized 13 — Amortization during the period (36 ) — Valuation allowance at end of period — — Net book value at end of period $ 1,886 $ — Fair value of MSR asset at end of period $ 1,951 $ — Residential mortgage loans serviced for others $ 282,392 $ — Net book value of MSR asset to loans serviced for others 0.67 % n/a
Estimated future aggregate amortization expense	The timing of amortization expense actually recognized in future periods may differ significantly based on actual prepayment speeds, mortgage interest rates and other factors. 2018 387 2019 338 2020 293 2021 243 2022 195 After 2022 430 Total $ 1,886 At September 30, 2017 , the estimated future aggregate amortization expense for the intangible assets are as follows: Intangible Assets 2018 644 2019 630 2020 629 2021 629 2022 629 After 2022 2,288 Total $ 5,449

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Sep. 30, 2017
Investments, Debt and Equity Securities [Abstract]
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale	The amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale and held to maturity as of September 30, 2017 and September 30, 2016 , respectively, were as follows: Available for sale securities Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value September 30, 2017 U.S. government agency obligations $ 18,454 $ 35 $ 448 $ 18,041 Obligations of states and political subdivisions 35,656 270 131 35,795 Mortgage-backed securities 36,661 124 311 36,474 Agency securities 147 83 — 230 Corporate debt securities 5,410 — 67 5,343 Total available for sale securities $ 96,328 $ 512 $ 957 $ 95,883 September 30, 2016 U.S. government agency obligations $ 16,388 $ 48 $ 29 $ 16,407 Obligations of states and political subdivisions 33,405 630 23 34,012 Mortgage-backed securities 28,861 389 3 29,247 Federal Agricultural Mortgage Corporation 70 11 — 81 Trust preferred securities 376 — — 376 Total available for sale securities $ 79,100 $ 1,078 $ 55 $ 80,123
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities held to maturity	Held to maturity securities Amortized Gross Gross Estimated September 30, 2017 Obligations of states and political subdivisions $ 1,311 $ 17 $ — $ 1,328 Mortgage-backed securities 4,142 136 1 4,277 Total held to maturity securities $ 5,453 $ 153 $ 1 $ 5,605 September 30, 2016 Obligations of states and political subdivisions $ 1,315 $ 20 $ — $ 1,335 Mortgage-backed securities 5,354 255 — 5,609 Total held to maturity securities $ 6,669 $ 275 $ — $ 6,944
The estimated fair value of securities by contractual maturity	The estimated fair value of available for sale securities at September 30, 2017 , by contractual maturity, is shown below. Expected maturities will differ from contractual maturities on mortgage-backed securities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Expected maturities may differ from contractual maturities on certain agency and municipal securities due to the call feature. Available for sale securities Amortized Cost Estimated Fair Value Due in one year or less $ 160 $ 160 Due after one year through five years 15,008 15,056 Due after five years through ten years 30,586 30,330 Due after ten years 13,766 13,633 59,520 59,179 Mortgage backed securities 36,661 36,474 Securities without contractual maturities 147 230 Total available for sale securities $ 96,328 $ 95,883 Held to maturity securities Amortized Cost Estimated Fair Value Due after one year through five years $ 1,311 $ 1,328 Mortgage backed securities 4,142 4,277 Total held to maturity securities $ 5,453 $ 5,605
Available for sale securities with unrealized losses	Securities with unrealized losses at September 30, 2017 and 2016 , aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, were as follows: Less than 12 Months 12 Months or More Total Available for sale securities Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss 2017 U.S. government agency obligations $ 8,296 $ 186 $ 6,932 $ 262 $ 15,228 $ 448 Obligations of states and political subdivisions 8,170 62 3,701 70 11,871 132 Mortgage-backed securities 14,167 96 9,753 215 23,920 311 Corporate debt securities 5,343 67 — — 5,343 67 Total $ 35,976 $ 411 $ 20,386 $ 547 $ 56,362 $ 958 2016 U.S. government agency obligations $ 4,039 $ 4 $ 2,494 $ 25 $ 6,533 $ 29 Obligations of states and political subdivisions 2,885 7 1,338 15 4,223 22 Mortgage-backed securities 1,385 1 1,137 3 2,522 4 Total $ 8,309 $ 12 $ 4,969 $ 43 $ 13,278 $ 55
Held to maturity securities with unrealized losses	Less than 12 Months 12 Months or More Total Held to maturity securities Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss 2017 Obligations of states and political subdivisions $ — $ — $ — $ — $ — $ — Mortgage-backed securities 406 1 — — 406 1 Total $ 406 $ 1 $ — $ — $ 406 $ 1 2016 Obligations of states and political subdivisions $ — $ — $ — $ — $ — $ — Mortgage-backed securities — — — — — — Total $ — $ — $ — $ — $ — $ —

Office Properties and Equipme34

Office Properties and Equipment (Tables)	12 Months Ended
	Sep. 30, 2017
Property, Plant and Equipment [Abstract]
Office properties and equipment	Office properties and equipment at September 30 for each of the years shown below consisted of the following: 2017 2016 Land $ 1,573 $ 1,130 Buildings 8,877 4,409 Furniture, equipment, and vehicles 4,240 5,964 Subtotals 14,690 11,503 Less—Accumulated depreciation (5,045 ) (6,165 ) Office properties and equipment—net $ 9,645 $ 5,338

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The following table provides changes in goodwill during the years ended September 30, 2017 and September 30, 2016 : Year ended September 30, 2017 2016 Balance at beginning of year $ 4,663 $ — Select loans and deposits purchase from Central Bank — 435 CBN acquisition (see Note 2) — 4,228 WFC acquisition (see Note 2) 5,781 — Amortization — — Balance at end of year $ 10,444 $ 4,663
Summary of core deposit intangibles and related amortization	A summary of intangible assets and related amortization for the periods shown below follows: Year ended September 30, 2017 2016 Gross carrying amount $ 8,195 $ 3,399 Accumulated amortization (2,746 ) (2,527 ) Net book value $ 5,449 $ 872 Additions during the year $ 4,796 $ 607 Amortization during the year $ 219 $ 111
Estimated future aggregate amortization expense	The timing of amortization expense actually recognized in future periods may differ significantly based on actual prepayment speeds, mortgage interest rates and other factors. 2018 387 2019 338 2020 293 2021 243 2022 195 After 2022 430 Total $ 1,886 At September 30, 2017 , the estimated future aggregate amortization expense for the intangible assets are as follows: Intangible Assets 2018 644 2019 630 2020 629 2021 629 2022 629 After 2022 2,288 Total $ 5,449

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Sep. 30, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Summary of deposits by type	The following is a summary of deposits by type at September 30, 2017 and 2016 , respectively: 2017 2016 Non-interest bearing demand deposits $ 75,318 $ 45,408 Interest bearing demand deposits 147,912 48,934 Savings accounts 102,756 52,153 Money market accounts 125,749 137,234 Certificate accounts 290,769 273,948 Total deposits $ 742,504 $ 557,677 Brokered deposits included above: $ 42,840 $ 5,003
Scheduled maturities of time deposits	At September 30, 2017 , the scheduled maturities of time deposits were as follows: 2018 $ 156,647 2019 77,079 2020 35,540 2021 15,678 2022 5,825 After 2022 — Total $ 290,769

Federal Home Loan Bank Advanc37

Federal Home Loan Bank Advances And Other Borrowings (Tables)	12 Months Ended
	Sep. 30, 2017
Banking and Thrift [Abstract]
A summary of Federal Home Loan Bank advances	A summary of Federal Home Loan Bank (FHLB) advances and other borrowings at September 30, 2017 and 2016 is as follows: September 30, 2017 September 30, 2016 Advances from FHLB: Fixed rates $ 90,000 $ 59,291 Senior notes: Variable rate due in May 2021 10,694 11,000 Variable rate due in August 2022 5,000 — 15,694 11,000 Subordinated notes: 6.75% due August 2027, variable rate commencing August 2022 5,000 — 6.75% due August 2027, variable rate commencing August 2022 10,000 — 15,000 — Less: unamortized debt issuance costs (375 ) — Total other borrowings 30,319 11,000 TOTALS $ 120,319 $ 70,291
Schedule of maturities of long-term debt	Maturities of FHLB advances and other borrowings are as follows: Fiscal years ending September 30, 2018 $ 91,680 2019 1,680 2020 1,680 2021 1,680 2022 4,181 Thereafter 19,418 $ 120,319

Capital Matters (Tables)

Capital Matters (Tables)	12 Months Ended
	Sep. 30, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Bank's Tier 1 (leverage) and risk-based capital ratios	The Bank’s Tier 1 (leverage) and risk-based capital ratios at September 30, 2017 and 2016 , respectively, are presented below: Actual For Capital Adequacy Purposes To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio As of September 30, 2017 Total capital (to risk weighted assets) $ 88,511,000 13.2 % $ 53,504,000 > = 8.0 % $ 66,880,000 > = 10.0 % Tier 1 capital (to risk weighted assets) 82,569,000 12.4 % 40,128,000 > = 6.0 % 53,504,000 > = 8.0 % Common equity tier 1 capital (to risk weighted assets) 82,569,000 12.4 % 30,096,000 > = 4.5 % 43,472,000 > = 6.5 % Tier 1 leverage ratio (to adjusted total assets) 82,569,000 9.2 % 35,776,000 > = 4.0 % 44,720,000 > = 5.0 % As of September 30, 2016 Total capital (to risk weighted assets) $ 72,345,000 14.1 % $ 41,189,000 > = 8.0 % $ 51,487,000 > = 10.0 % Tier 1 capital (to risk weighted assets) 66,278,000 12.9 % 30,892,000 > = 6.0 % 41,189,000 > = 8.0 % Common equity tier 1 capital (to risk weighted assets) 66,278,000 12.9 % 23,169,000 > = 4.5 % 33,466,000 > = 6.5 % Tier 1 leverage ratio (to adjusted total assets) 66,278,000 9.3 % 28,428,000 > = 4.0 % 35,535,000 > = 5.0 % The Company's Tier 1 (leverage) and risk-based capital ratios at September 30, 2017 and 2016 , respectively, are presented below: Actual For Capital Adequacy To Be Well Capitalized Amount Ratio Amount Ratio Amount Ratio As of September 30, 2017 Total capital (to risk weighted assets) $ 79,889,000 12.0 % $ 53,504,000 > = 8.0 % $ 66,880,000 > = 10.0 % Tier 1 capital (to risk weighted assets) 58,947,000 8.8 % 40,128,000 > = 6.0 % 53,504,000 > = 8.0 % Common equity tier 1 capital (to risk weighted assets) 58,947,000 8.8 % 30,096,000 > = 4.5 % 43,472,000 > = 6.5 % Tier 1 leverage ratio (to adjusted total assets) 58,947,000 6.6 % 35,776,000 > = 4.0 % 44,720,000 > = 5.0 % As of September 30, 2016 Total capital (to risk weighted assets) $ 64,811,000 12.6 % $ 41,189,000 > = 8.0 % $ 51,487,000 > = 10.0 % Tier 1 capital (to risk weighted assets) 58,743,000 11.4 % 30,892,000 > = 6.0 % 41,189,000 > = 8.0 % Common equity tier 1 capital (to risk weighted assets) 58,743,000 11.4 % 23,169,000 > = 4.5 % 33,466,000 > = 6.5 % Tier 1 leverage ratio (to adjusted total assets) 58,743,000 8.3 % 28,428,000 > = 4.0 % 35,535,000 > = 5.0 %

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Sep. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Summary of commitment off balance sheets credit	Set forth below are the balances of the Company’s off-balance-sheet credit instruments consisting of commitments to make loans as of September 30, 2017 and 2016 , respectively. Contract or Notional Amount at September 30, 2017 2016 Commitments to extend credit $ 78,150 $ 28,341 Commercial standby letter of credit 1,644 135
Summary of non cancelable operating leases	Future minimum lease payments by year and in the aggregate under the original terms of the non-cancellable operating leases consist of the following: 2018 $ 895 2019 791 2020 752 2021 677 2022 671 After 2022 2,209 Total $ 5,995

Retirement Plans (Tables)

Retirement Plans (Tables)	12 Months Ended
	Sep. 30, 2017
Asset Retirement Obligation Disclosure [Abstract]
Components of retirement plans	The components of the SERP and Directors’ Retirement plans’ cost at September 30, 2017 and 2016 , respectively, are summarized as follows: 2017 2016 Beginning accrued benefit cost $ 1,046 $ 1,120 Service cost — — Interest cost — 44 Amortization of prior service costs — 1 Net plan termination credit — (41 ) Net periodic benefit cost — 4 Benefits paid (1,046 ) (78 ) Curtailment and settlement — — Ending accrued benefit cost $ — $ 1,046
Change in projected benefit obligation and change in plan assets	The following table sets forth the SERP and Directors’ Retirement plans, change in projected benefit obligation, the change in plan assets, the funded status of the plans, and the net liability recognized in the Company’s consolidated balance sheet at September 30, 2017 and 2016 , respectively: 2017 2016 Change in benefit obligation: Projected benefit obligation, beginning of year $ 1,046 $ 1,062 Service cost — — Interest cost — 44 Curtailment and settlement — — Actuarial loss (gain) — 18 Benefits paid (1,046 ) (78 ) Projected benefit obligation, end of year $ — $ 1,046 Change in plan assets: Plan assets at fair value, beginning of year $ — $ — Actual return on plan assets — — Company contributions — 78 Benefits paid — (78 ) Plan assets at fair value, end of year $ — $ —
Weighted average assumptions used in determining the benefit obligation and net pension costs	Weighted average assumptions used in determining the benefit obligation and net pension costs as of September 30, 2017 and 2016 , (in actual dollars) were as follows: 2017 2016 Benefit obligation actuarial assumptions: Discount Rate N/A N/A Rate of compensation increase N/A N/A Net pension cost actuarial assumption Discount rate N/A 4.25 % Expected long-term rate of return on plan assets N/A N/A Rate of compensation increase N/A N/A
Schedule of amounts recognized in balance sheet	Amounts recognized in consolidated balance sheets as of September 30: 2017 2016 Pension obligation $ — $ 1,046 Prior service cost $ — $ — Net loss (gain) — — Total accumulated other comprehensive income, before tax $ — $ —

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of restricted stock awards	Restricted Common Stock Awards 2017 2016 Number of Shares Weighted Number of Shares Weighted Restricted Shares Unvested and outstanding at beginning of year 23,159 $ 9.59 46,857 $ 7.59 Granted 25,569 13.53 11,591 10.98 Vested (6,350 ) 8.88 (13,127 ) 7.17 Forfeited — — (22,162 ) 7.54 Unvested and outstanding at end of year 42,378 $ 12.07 23,159 $ 9.59
Summary of stock option activity	Common Stock Option Awards Option Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value 2017 Outstanding at beginning of year 140,706 $ 8.67 Granted 23,000 13.75 Exercised (14,100 ) 8.27 Forfeited or expired (3,000 ) 11.00 Outstanding at end of year 146,606 $ 9.45 6.68 Exercisable at end of year 57,712 $ 7.70 3.89 $ 361 Fully vested and expected to vest 146,606 $ 9.45 6.68 $ 659 2016 Outstanding at beginning of year 171,737 $ 7.46 Granted 55,000 10.00 Exercised (43,515 ) Forfeited or expired (42,516 ) Outstanding at end of year 140,706 $ 8.67 7.22 Exercisable at end of year 49,520 $ 7.27 4.09 $ 194 Fully vested and expected to vest 140,706 $ 8.67 7.22 $ 354
Information related to stock option plan	Information related to the 2004 Stock Option and Incentive Plan and 2008 Equity Incentive Plan during each year follows: 2017 2016 Intrinsic value of options exercised $ 69 $ 131 Cash received from options exercised $ 114 $ 290 Tax benefit realized from options exercised $ — $ —
Assumptions used in calculating stock option expense	Set forth below is a table showing relevant assumptions used in calculating stock option expense related to the Company’s 2004 Stock Option and Incentive Plan and 2008 Equity Incentive Plan: 2017 2016 Dividend yield 1.16 % 1.02 % Risk-free interest rate 2.2 % 1.7 % Weighted average expected life (years) 10 10 Expected volatility 2.4 % 5.0 %

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	Income tax expense (benefit) for each of the periods shown below consisted of the following: 2017 2016 Current tax provision Federal $ 572 $ 683 State 117 131 689 814 Deferred tax provision (benefit) Federal 535 406 State 99 66 634 472 Total $ 1,323 $ 1,286
The provision for income taxes differs from the amount of income tax determined by applying statutory federal income tax rates to pretax income	The provision for income taxes differs from the amount of income tax determined by applying statutory federal income tax rates to pretax income as result of the following differences: 2017 2016 Amount Rate Amount Rate Tax expense at statutory rate $ 1,299 34.00 % $ 1,312 34.00 % State income taxes net of federal 216 5.64 % 197 5.10 % Tax exempt interest (229 ) (5.98 )% (166 ) (4.26 )% Other 37 0.96 % (57 ) (1.51 )% Total $ 1,323 34.62 % $ 1,286 33.33 %
Deferred tax assets and liabilities	The following is a summary of the significant components of the Company’s deferred tax assets and liabilities as of September 30, 2017 and September 30, 2016 , respectively: 2017 2016 Deferred tax assets: Allowance for loan losses $ 2,347 $ 2,377 Deferred loan costs/fees 51 77 Director/officer compensation plans 90 299 Net unrealized loss on securities available for sale 178 — Economic performance accruals — 131 Other real estate 304 — Deferred revenue 143 — Loan Discounts 1,450 — Other 100 177 Deferred tax assets $ 4,663 $ 3,061 Deferred tax liabilities: Office properties and equipment (1,039 ) (291 ) Federal Home Loan Bank stock (128 ) — Core Deposit Intangible (1,628 ) — Other real estate (114 ) — Net unrealized gain on securities available for sale — (409 ) Prepaid expenses (147 ) — Mortgage servicing rights (685 ) — Other acquired intangibles (264 ) — Other — (98 ) Deferred tax liabilities (4,005 ) (798 ) Net deferred tax assets $ 658 $ 2,263

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Reconciliation of the basic and diluted earnings per share	Earnings per share is based on the weighted average number of shares outstanding for the year. A reconciliation of the basic and diluted earnings per share for the last three fiscal years is as follows: 2017 2016 Basic Net income attributable to common shareholders $ 2,499 $ 2,573 Weighted average common shares outstanding 5,361,843 5,241,458 Basic earnings per share $ 0.47 $ 0.49 Diluted Net income attributable to common shareholders $ 2,499 $ 2,573 Weighted average common shares outstanding 5,361,843 5,241,458 for basic earnings per share Add: Dilutive stock options outstanding 16,517 15,846 Average shares and dilutive potential common shares 5,378,360 5,257,304 Diluted earnings per share $ 0.46 $ 0.49 Additional common stock option shares that have not been included due to their antidilutive effect 22,000 38,000

Other Comprehensive Income (Tab

Other Comprehensive Income (Tables)	12 Months Ended
	Sep. 30, 2017
Equity [Abstract]
Tax effects allocated to each component of other comprehensive income	The following table shows the tax effects allocated to each component of other comprehensive income for the years ended September 30, 2017 and 2016 : 2017 2016 Before-Tax Amount Tax Expense Net-of-Tax Amount Before-Tax Amount Tax Expense Net-of-Tax Amount Unrealized (losses) gains on securities: Net unrealized (losses) gains arising during the period $ (1,580 ) 632 $ (948 ) $ 1,375 $ (550 ) $ 825 Less: reclassification adjustment for gains included in net income 111 (44 ) 67 63 (25 ) 38 Defined benefit plans: Amortization of unrecognized prior service costs and net losses — — — (58 ) 23 (35 ) Other comprehensive (loss) income $ (1,469 ) $ 588 $ (881 ) $ 1,380 $ (552 ) $ 828
Changes in the accumulated balances for each component of other comprehensive income	The changes in the accumulated balances for each component of other comprehensive income (loss) for the years ended September 30, 2017 and 2016 were as follows: Unrealized Gains (Losses) on Securities Defined Benefit Plans Other Comprehensive Income (Loss) Balance, October 1, 2015 $ (249 ) $ 35 $ (214 ) Current year-to-date other comprehensive income, net of tax 863 (35 ) 828 Ending balance, September 30, 2016 $ 614 $ — $ 614 Current year-to-date other comprehensive loss, net of tax (881 ) — (881 ) Ending balance, September 30, 2017 $ (267 ) $ — $ (267 )
Reclassification out of accumulated other comprehensive income	Reclassifications out of accumulated other comprehensive income for the twelve months ended September 30, 2017 were as follows: Details about Accumulated Other Comprehensive Income (Loss) Components Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (1) Affected Line Item on the Statement of Operations Unrealized gains and losses Sale of securities $ 111 Net gain on sale of available for sale securities Tax effect (44 ) Provision for income taxes Total reclassifications for the period $ 67 Net income attributable to common shareholders (1) Amounts in parentheses indicate decreases to profit/loss. Reclassifications out of accumulated other comprehensive income for the twelve months ended September 30, 2016 were as follows: Details about Accumulated Other Comprehensive Income (Loss) Components Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (1) Affected Line Item on the Statement of Operations Unrealized gains and losses Sale of securities $ 63 Net gain on sale of available for sale securities Tax effect (25 ) Provision for income taxes Total reclassifications for the period $ 38 Net income attributable to common shareholders (1) Amounts in parentheses indicate decreases to profit/loss.

Condensed Financial Informati45

Condensed Financial Information - Parent Company Only (Tables)	12 Months Ended
	Sep. 30, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Balance Sheets	CONDENSED BALANCE SHEETS September 30, 2017 2016 ASSETS Cash and cash equivalents $ 5,716 $ 3,514 Investments 1,242 — Other assets 5 — Investment in subsidiary 97,105 72,079 Total assets $ 104,068 $ 75,593 LIABILITIES AND STOCKHOLDERS’ EQUITY Other borrowings $ 30,319 $ 11,000 Other liabilities 266 49 Total liabilities 30,585 11,049 Total stockholders’ equity 73,483 64,544 Total liabilities and stockholders’ equity $ 104,068 $ 75,593
Statements of Operations	STATEMENTS OF OPERATIONS 2017 2016 Dividend income from bank subsidiary $ 12,500 $ 3,419 Interest Income (1 ) — Interest expense 594 143 Expenses—other 1,376 306 Total expenses 1,969 449 Income before provision for income taxes and equity in undistributed net income of subsidiary 10,531 2,970 Benefit for income taxes 602 176 Income before equity in undistributed net income (loss) of subsidiary 11,133 3,146 Equity in undistributed net gain of subsidiary (8,634 ) (573 ) Net income $ 2,499 $ 2,573
Statements of Cash flows	STATEMENTS OF CASH FLOWS 2017 2016 Change in cash and cash equivalents: Cash flows from operating activities: Net income $ 2,499 $ 2,573 Stock based compensation expense 31 33 Adjustments to reconcile net income to net cash provided by operating activities - Equity in undistributed income of subsidiary (3,866 ) (2,846 ) Increase in other liabilities 216 49 Net cash used in operating activities (1,120 ) (191 ) Cash flows from investing activities: Proceeds from maturities of interest bearing deposits 249 — Cash consideration paid in business combination (27,716 ) — Net cash used in investing activities (27,467 ) — Cash flows from financing activities: Increase in other borrowings to fund business combination 19,620 — Equity costs to fund business combination (259 ) — Decrease in other borrowings (306 ) — Repurchase shares of common stock (16 ) — Surrendered vested shares of common stock (22 ) (50 ) Exercise of common stock options 114 289 Cash dividend from Bank to Holding Company 12,500 3,419 Cash dividends paid (842 ) (629 ) Net cash provided by financing activities 30,789 3,029 Net increase in cash and cash equivalents 2,202 2,838 Cash and cash equivalents at beginning of year 3,514 676 Cash and cash equivalents at end of year $ 5,716 $ 3,514

Nature of Business and Summar46

Nature of Business and Summary of Significant Accounting Policies - (Details Textual)	12 Months Ended
	Sep. 30, 2017USD ($)accountsegmentreporting_unitService_Office	Sep. 30, 2016USD ($)	Dec. 31, 2017Service_Office	Dec. 15, 2017Service_Office	Aug. 18, 2017Service_Office
Property, Plant and Equipment [Line Items]
Total number of service offices | Service_Office	23
Number of additional offices | Service_Office					9
Interest income recognized debt past due not more than days	90 days
Loans charged off past due more than days	180 days
Closed end loan charged off past due more than days	120 days
Number of operating segments | segment	1
Number of reporting units | reporting_unit	1
Maturity of certificate of deposit investments	21 months 27 days
Number of accounts, FDIC insured amount, balance in excess | account	1
Cash, FDIC insured amount, balance in excess | $	$ 251,000
Uninsured deposits | $		$ 0
Advertising, marketing and public relations | $	545,000	$ 701,000
Loan commitments outstanding | $	$ 2,680,000
Buildings and Components | Minimum
Property, Plant and Equipment [Line Items]
Useful lives assets	10 years
Buildings and Components | Maximum
Property, Plant and Equipment [Line Items]
Useful lives assets	40 years
Furniture Fixtures and Equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful lives assets	3 years
Furniture Fixtures and Equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful lives assets	10 years
Commercial Loan
Property, Plant and Equipment [Line Items]
Interest income discontinued over delinquent days	90 days
Closed End Consumer Loan
Property, Plant and Equipment [Line Items]
Interest income discontinued over delinquent days	120 days
Real Estate and Open Ended Consumer Loans
Property, Plant and Equipment [Line Items]
Interest income discontinued over delinquent days	180 days
Scenario, Forecast
Property, Plant and Equipment [Line Items]
Number of additional offices | Service_Office				7
Number of office closures | Service_Office			2

Nature of Business and Summar47

Nature of Business and Summary of Significant Accounting Policies - Dividend (Details)	1 Months Ended
	Aug. 31, 2016	May 31, 2016	Feb. 29, 2016	Nov. 30, 2015
FHLB Membership Stock
Class of Stock [Line Items]
Percentage of dividend rate	1.25%	1.05%	0.85%	0.60%
FLHB Activity Stock
Class of Stock [Line Items]
Percentage of dividend rate	3.30%	3.15%	3.00%	2.80%

Acquisitions - (Details Textual

Acquisitions - (Details Textual) $ / shares in Units, $ in Thousands	Aug. 18, 2017USD ($)$ / sharesshares	May 16, 2016USD ($)branch	Sep. 30, 2017USD ($)$ / shares	Sep. 30, 2016USD ($)$ / shares	Sep. 30, 2015USD ($)
Business Acquisition [Line Items]
Common stock, par value (in dollars per share) | $ / shares			$ 0.01	$ 0.01
Goodwill			$ 10,444	$ 4,663	$ 0
Transaction costs			701
Number of businesses acquired | branch		5
Interest and dividend income			27,878	$ 25,084
Wells Financial Corp
Business Acquisition [Line Items]
Cash paid per acquiree share (in dollars per share) | $ / shares	$ 41.31
Entity shares issued per acquiree share (in dollars per share)	0.7598982
Cash consideration paid in business combination	$ 32,210
Equity interests issued and issuable (in shares) | shares	592,218
Total assets	$ 256,473
Loans receivable	187,079
Deposits	(217,905)
Goodwill	5,781
Intangible assets	4,178
Transaction costs			$ 1,860
Debt issuance costs	380
Fair value of consideration paid	$ 40,442
CBN
Business Acquisition [Line Items]
Total assets		$ 167,469
Loans receivable		111,740
Deposits		(151,020)
Goodwill		4,228
Intangible assets		607
Fair value of consideration paid		17,447
Book value of assets		16,762
Capital dividend by previous owner		4,342
Fixed premium paid		5,000
Interest and dividend income		$ 27
Wells Financial Corp | Wells Financial Corp
Business Acquisition [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.10
Senior notes: | Wells Financial Corp
Business Acquisition [Line Items]
Long-term debt assumed	$ 5,000
Subordinated notes: | Wells Financial Corp
Business Acquisition [Line Items]
Long-term debt assumed	15,000
Additional Paid-In Capital
Business Acquisition [Line Items]
Debt issuance costs	$ 259

Acquisitions - Business Acquisi

Acquisitions - Business Acquisition, Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Wells Financial Corp
Business Acquisition [Line Items]
Revenue (net interest income and non-interest income)	$ 38,097	$ 36,695
Net income attributable to common stockholders	$ 5,461	$ 4,115
Earnings per share--basic (in dollars per share)	$ 0.92	$ 0.71
Earnings per share-diluted (in dollars per share)	$ 0.91	$ 0.71
CBN
Business Acquisition [Line Items]
Revenue (net interest income and non-interest income)		$ 23,214
Net income attributable to common stockholders		$ 3,601
Earnings per share--basic (in dollars per share)		$ 0.69
Earnings per share-diluted (in dollars per share)		$ 0.69
Citizens Community Bancorp, Inc. | Wells Financial Corp
Business Acquisition [Line Items]
Revenue (net interest income and non-interest income)	$ 27,019	$ 23,992
Net income attributable to common stockholders	$ 2,499	$ 2,573
Earnings per share--basic (in dollars per share)	$ 0.47	$ 0.49
Earnings per share-diluted (in dollars per share)	$ 0.46	$ 0.49
Citizens Community Bancorp, Inc. | CBN
Business Acquisition [Line Items]
Revenue (net interest income and non-interest income)		$ 18,566
Net income attributable to common stockholders		$ 2,806
Earnings per share--basic (in dollars per share)		$ 0.54
Earnings per share-diluted (in dollars per share)		$ 0.54
Wells Financial Corporation | Wells Financial Corp
Business Acquisition [Line Items]
Revenue (net interest income and non-interest income)	$ 11,758	$ 13,452
Net income attributable to common stockholders	508	2,387
Wells Financial Corporation | CBN
Business Acquisition [Line Items]
Revenue (net interest income and non-interest income)		5,180
Net income attributable to common stockholders		1,418
Pro Forma Adjustments | Wells Financial Corp
Business Acquisition [Line Items]
Revenue (net interest income and non-interest income)	(680)	(749)
Net income attributable to common stockholders	$ 2,454	(845)
Pro Forma Adjustments | CBN
Business Acquisition [Line Items]
Revenue (net interest income and non-interest income)		(532)
Net income attributable to common stockholders		$ (623)

Acquisitions - Schedule of Reco

Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Aug. 18, 2017	May 16, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Liabilities and Stockholders’ Equity
Goodwill			$ 10,444	$ 4,663	$ 0
CBN
Business Acquisition [Line Items]
Fair value of consideration paid		$ 17,447
Assets
Cash and cash equivalents		28,104
Other interest bearing deposits		0
Securities		21,825
Loans receivable		111,740
Office properties and equipment, net		2,741
Intangible assets		607
Other assets		2,452
TOTAL ASSETS		167,469
Liabilities and Stockholders’ Equity
Deposits		151,020
Borrowings		3,000
Other liabilities		230
Total liabilities		154,250
Total identifiable net assets acquired		13,219
Goodwill		$ 4,228
Wells Financial Corp
Business Acquisition [Line Items]
Fair value of consideration paid	$ 40,442
Assets
Cash and cash equivalents	4,742
Other interest bearing deposits	16,871
Securities	31,758
Loans receivable	187,079
Office properties and equipment, net	5,011
Intangible assets	4,178
Other assets	6,834
TOTAL ASSETS	256,473
Liabilities and Stockholders’ Equity
Deposits	217,905
Borrowings	3,320
Other liabilities	587
Total liabilities	221,812
Total identifiable net assets acquired	34,661
Goodwill	$ 5,781

Fair Value Accounting - Assets

Fair Value Accounting - Assets Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Assets Measured on a Recurring Basis
Securities available for sale AFS	$ 95,883	$ 80,123
U.S. government agency obligations
Assets Measured on a Recurring Basis
Securities available for sale AFS	18,041	16,407
Equity securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	230
Corporate debt securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	5,343
Trust preferred securities
Assets Measured on a Recurring Basis
Securities available for sale AFS		376
Fair Value, Measurements, Recurring
Assets Measured on a Recurring Basis
Securities available for sale AFS	95,883	80,123
Fair Value, Measurements, Recurring | U.S. government agency obligations
Assets Measured on a Recurring Basis
Securities available for sale AFS	18,041	16,407
Fair Value, Measurements, Recurring | Obligations of states and political subdivisions
Assets Measured on a Recurring Basis
Securities available for sale AFS	35,795	34,012
Fair Value, Measurements, Recurring | Mortgage-backed securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	36,474	29,247
Fair Value, Measurements, Recurring | Equity securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	230	81
Fair Value, Measurements, Recurring | Corporate debt securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	5,343
Fair Value, Measurements, Recurring | Trust preferred securities
Assets Measured on a Recurring Basis
Securities available for sale AFS		376
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Instruments (Level 1)
Assets Measured on a Recurring Basis
Securities available for sale AFS	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Instruments (Level 1) | U.S. government agency obligations
Assets Measured on a Recurring Basis
Securities available for sale AFS	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Obligations of states and political subdivisions
Assets Measured on a Recurring Basis
Securities available for sale AFS	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Mortgage-backed securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Equity securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Corporate debt securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Trust preferred securities
Assets Measured on a Recurring Basis
Securities available for sale AFS		0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets Measured on a Recurring Basis
Securities available for sale AFS	95,883	79,747
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. government agency obligations
Assets Measured on a Recurring Basis
Securities available for sale AFS	18,041	16,407
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Obligations of states and political subdivisions
Assets Measured on a Recurring Basis
Securities available for sale AFS	35,795	34,012
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	36,474	29,247
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Equity securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	230	81
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Corporate debt securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	5,343
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Trust preferred securities
Assets Measured on a Recurring Basis
Securities available for sale AFS		0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Assets Measured on a Recurring Basis
Securities available for sale AFS	0	376
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Obligations of states and political subdivisions
Assets Measured on a Recurring Basis
Securities available for sale AFS	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Corporate debt securities
Assets Measured on a Recurring Basis
Securities available for sale AFS	$ 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Trust preferred securities
Assets Measured on a Recurring Basis
Securities available for sale AFS		$ 376

Fair Value Accounting - Level 3

Fair Value Accounting - Level 3 (Details) - Available-for-sale Securities - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of year	$ 376	$ 0
Payments received	(500)	0
Included in earnings	124	0
Included in other comprehensive income	0	0
Transfers in and/or out of Level 3	0	376
Balance, end of year	$ 0	$ 376

Fair Value Accounting - Asset53

Fair Value Accounting - Assets Measured on a Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Assets Measured on a Nonrecurring Basis
Foreclosed and repossessed assets, net	$ 6,017	$ 776
Impaired loans with allocated allowances	1,490	2,412
Total	9,458	3,188
Quoted Prices in Active Markets for Identical Instruments (Level 1)
Assets Measured on a Nonrecurring Basis
Foreclosed and repossessed assets, net	0	0
Impaired loans with allocated allowances	0	0
Total	0	0
Significant Other Observable Inputs (Level 2)
Assets Measured on a Nonrecurring Basis
Foreclosed and repossessed assets, net	0	0
Impaired loans with allocated allowances	0	0
Total	0	0
Significant Unobservable Inputs (Level 3)
Assets Measured on a Nonrecurring Basis
Foreclosed and repossessed assets, net	6,017	776
Impaired loans with allocated allowances	1,490	2,412
Total	9,458	$ 3,188
Mortgage servicing rights
Assets Measured on a Nonrecurring Basis
Mortgage servicing rights	1,951
Mortgage servicing rights | Significant Unobservable Inputs (Level 3)
Assets Measured on a Nonrecurring Basis
Mortgage servicing rights	$ 1,951

Fair Value Accounting - Level54

Fair Value Accounting - Level 3 Inputs (Details 4) - Significant Unobservable Inputs (Level 3) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Market Approach Valuation Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreclosed and repossessed assets, net	$ 6,017	$ 776
Impaired loans with allocated allowances	$ 1,490	$ 2,412
Minimum | Market Approach Valuation Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost to sell, percentage	10.00%	10.00%
Minimum | Income Approach Valuation Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	9.50%
Maximum | Market Approach Valuation Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost to sell, percentage	15.00%	15.00%
Maximum | Income Approach Valuation Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	10.00%
Mortgage servicing rights | Income Approach Valuation Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	$ 1,951

Fair Value Accounting - Fair Va

Fair Value Accounting - Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Financial assets:
Cash and cash equivalents	$ 41,677	$ 10,046	$ 23,872
Securities available for sale AFS	95,883	80,123
Securities available for sale AFS, Estimated Fair Value	95,883	80,123
Securities held to maturity HTM, Carrying Amount	5,453	6,669
Securities held to maturity HTM, Estimated Fair Value	5,605	6,944
Non-marketable equity securities, at cost, Carrying Amount	7,292	5,034
Loans receivable, net, Carrying Amount	727,053	568,371
Loans held for sale, Carrying Value	2,334	0
Mortgage servicing rights, Carrying Value	1,886	0
Mortgage servicing rights, Estimated Fair Value	1,951	0
Accrued interest receivable, Carrying Amount	3,291	2,032
Financial liabilities:
Deposits, Carrying Value	742,504	557,677
Other Borrowings, Carrying Amount	30,319	11,000
(Level I)
Financial assets:
Cash and cash equivalents	41,677	10,046
Cash and cash equivalents, Estimated Fair Value	41,677	10,046
Interest-bearing deposits, Carrying Amount	8,148	745
Interest-bearing deposits, Estimated Fair Value	8,143	760
Accrued interest receivable, Carrying Amount	3,291	2,032
Accrued Interest Receivables, Estimated Fair Value	3,291	2,032
Financial liabilities:
Other Borrowings, Carrying Amount	30,319	11,000
Other Borrowings, Fair Value Disclosure	30,319	11,000
Other Liabilities, Carrying Amount	4,131	3,353
Other Liabilities, Fair Value Disclosure	4,131	3,353
Accrued Interest Payable, Carrying Amount	227	122
Accrued Interest Payable, Estimated Fair Value	227	122
(Level II)
Financial assets:
Securities held to maturity HTM, Carrying Amount	5,453	6,669
Securities held to maturity HTM, Estimated Fair Value	5,605	6,944
Non-marketable equity securities, at cost, Carrying Amount	7,292	5,034
Non-marketable equity securities, at cost, Estimated Fair Value	7,292	5,034
Loans held for sale, Carrying Value	2,334	0
Loans held for sale, Estimated Fair Value	2,334	0
(Level III)
Financial assets:
Loans receivable, net, Carrying Amount	727,053	568,371
Loans receivable, net, Estimated Fair Value	737,119	585,679
Financial liabilities:
Deposits, Carrying Value	742,504	557,677
Deposits, Estimated Fair Value	746,025	561,919
Federal Home Loan Bank advances, Carrying Amount	90,000	59,291
Federal Home Loan Bank advances, Estimated Fair Value	89,998	59,557
Mortgage servicing rights
Financial assets:
Mortgage servicing rights, Carrying Value	1,886	0	$ 0
Mortgage servicing rights, Estimated Fair Value	$ 1,951	$ 0

Loans, Allowance for Loan Los56

Loans, Allowance for Loan Losses and Impaired Loans - Schedule of Financing Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Mortgage Loans on Real Estate [Line Items]
Gross loans	$ 736,613	$ 574,248
Unearned net deferred fees and costs and loans in process	1,471	1,915
Unamortized discount on acquired loans	(5,089)	(1,724)
Allowance for loan losses	(5,942)	(6,068)	$ (6,496)
Loans receivable, net	727,053	568,371
Residential real estate:
Mortgage Loans on Real Estate [Line Items]
Allowance for loan losses	(1,458)	(2,039)	(2,364)
Residential real estate: | One to four family
Mortgage Loans on Real Estate [Line Items]
Gross loans	229,563	187,738
Residential real estate: | Purchased HELOC loans
Mortgage Loans on Real Estate [Line Items]
Gross loans	18,071	0
Commercial/Agricultural real estate:
Mortgage Loans on Real Estate [Line Items]
Allowance for loan losses	(2,523)	(1,883)	(989)
Commercial/Agricultural real estate: | Commercial real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	159,962	88,940
Commercial/Agricultural real estate: | Agricultural real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	68,002	28,198
Commercial/Agricultural real estate: | Multi-family real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	26,228	19,135
Commercial/Agricultural real estate: | Construction and land development
Mortgage Loans on Real Estate [Line Items]
Gross loans	19,708	16,580
Consumer non-real estate:
Mortgage Loans on Real Estate [Line Items]
Allowance for loan losses	(936)	(1,466)	(1,620)
Consumer non-real estate: | Originated indirect paper
Mortgage Loans on Real Estate [Line Items]
Gross loans	85,732	119,073
Consumer non-real estate: | Purchased indirect paper
Mortgage Loans on Real Estate [Line Items]
Gross loans	29,555	49,221
Consumer non-real estate: | Other Consumer
Mortgage Loans on Real Estate [Line Items]
Gross loans	20,668	19,715
Commercial/Agricultural non-real estate:
Mortgage Loans on Real Estate [Line Items]
Allowance for loan losses	(897)	(652)	$ (1,271)
Commercial/Agricultural non-real estate: | Commercial non-real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	55,251	31,001
Commercial/Agricultural non-real estate: | Agricultural non-real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	23,873	14,647
Originated Loans
Mortgage Loans on Real Estate [Line Items]
Gross loans	472,593	470,242
Allowance for loan losses	(5,942)	(6,068)
Originated Loans | Residential real estate:
Mortgage Loans on Real Estate [Line Items]
Allowance for loan losses	(1,458)	(2,039)
Originated Loans | Residential real estate: | One to four family
Mortgage Loans on Real Estate [Line Items]
Gross loans	132,380	160,961
Originated Loans | Residential real estate: | Purchased HELOC loans
Mortgage Loans on Real Estate [Line Items]
Gross loans	18,071	0
Originated Loans | Commercial/Agricultural real estate:
Mortgage Loans on Real Estate [Line Items]
Allowance for loan losses	(2,523)	(1,883)
Originated Loans | Commercial/Agricultural real estate: | Commercial real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	97,155	58,768
Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	10,628	3,418
Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	24,486	18,935
Originated Loans | Commercial/Agricultural real estate: | Construction and land development
Mortgage Loans on Real Estate [Line Items]
Gross loans	12,399	12,977
Originated Loans | Consumer non-real estate:
Mortgage Loans on Real Estate [Line Items]
Allowance for loan losses	(936)	(1,466)
Originated Loans | Consumer non-real estate: | Originated indirect paper
Mortgage Loans on Real Estate [Line Items]
Gross loans	85,732	119,073
Originated Loans | Consumer non-real estate: | Purchased indirect paper
Mortgage Loans on Real Estate [Line Items]
Gross loans	29,555	49,221
Originated Loans | Consumer non-real estate: | Other Consumer
Mortgage Loans on Real Estate [Line Items]
Gross loans	14,496	18,926
Originated Loans | Commercial/Agricultural non-real estate:
Mortgage Loans on Real Estate [Line Items]
Allowance for loan losses	(897)	(652)
Originated Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	35,198	17,969
Originated Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	12,493	9,994
Acquired Loans
Mortgage Loans on Real Estate [Line Items]
Gross loans	264,020	104,006
Allowance for loan losses	0	0
Acquired Loans | Residential real estate:
Mortgage Loans on Real Estate [Line Items]
Gross loans	18,071
Allowance for loan losses	0	0
Acquired Loans | Residential real estate: | One to four family
Mortgage Loans on Real Estate [Line Items]
Gross loans	97,183	26,777
Acquired Loans | Commercial/Agricultural real estate:
Mortgage Loans on Real Estate [Line Items]
Allowance for loan losses	0	0
Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	62,807	30,172
Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	57,374	24,780
Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	1,742	200
Acquired Loans | Commercial/Agricultural real estate: | Construction and land development
Mortgage Loans on Real Estate [Line Items]
Gross loans	7,309	3,603
Acquired Loans | Consumer non-real estate:
Mortgage Loans on Real Estate [Line Items]
Allowance for loan losses	0	0
Acquired Loans | Consumer non-real estate: | Other Consumer
Mortgage Loans on Real Estate [Line Items]
Gross loans	6,172	789
Acquired Loans | Commercial/Agricultural non-real estate:
Mortgage Loans on Real Estate [Line Items]
Allowance for loan losses	0	0
Acquired Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	20,053	13,032
Acquired Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Mortgage Loans on Real Estate [Line Items]
Gross loans	$ 11,380	$ 4,653

Loans, Allowance for Loan Los57

Loans, Allowance for Loan Losses and Impaired Loans - Schedule of Loans By Risk (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 736,613	$ 574,248
Unearned net deferred fees and costs and loans in process	1,471	1,915
Unamortized discount on acquired loans	(5,089)	(1,724)
Allowance for loan losses	(5,942)	(6,068)	$ (6,496)
Loans receivable, net	727,053	568,371
Residential real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(1,458)	(2,039)	(2,364)
Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	229,563	187,738
Residential real estate: | Purchased HELOC loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	18,071	0
Commercial/Agricultural real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(2,523)	(1,883)	(989)
Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	159,962	88,940
Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	68,002	28,198
Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	26,228	19,135
Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	19,708	16,580
Consumer non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(936)	(1,466)	(1,620)
Consumer non-real estate: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	85,732	119,073
Consumer non-real estate: | Purchased indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	29,555	49,221
Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	20,668	19,715
Commercial/Agricultural non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(897)	(652)	$ (1,271)
Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	55,251	31,001
Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	23,873	14,647
Originated Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	472,593	470,242
Allowance for loan losses	(5,942)	(6,068)
Originated Loans | Residential real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(1,458)	(2,039)
Originated Loans | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	132,380	160,961
Originated Loans | Residential real estate: | Purchased HELOC loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	18,071	0
Originated Loans | Commercial/Agricultural real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(2,523)	(1,883)
Originated Loans | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	97,155	58,768
Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	10,628	3,418
Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	24,486	18,935
Originated Loans | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	12,399	12,977
Originated Loans | Consumer non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(936)	(1,466)
Originated Loans | Consumer non-real estate: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	85,732	119,073
Originated Loans | Consumer non-real estate: | Purchased indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	29,555	49,221
Originated Loans | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	14,496	18,926
Originated Loans | Commercial/Agricultural non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(897)	(652)
Originated Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	35,198	17,969
Originated Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	12,493	9,994
Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	264,020	104,006
Allowance for loan losses	0	0
Acquired Loans | Residential real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	18,071
Allowance for loan losses	0	0
Acquired Loans | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	97,183	26,777
Acquired Loans | Commercial/Agricultural real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0	0
Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	62,807	30,172
Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	57,374	24,780
Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,742	200
Acquired Loans | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	7,309	3,603
Acquired Loans | Consumer non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0	0
Acquired Loans | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	6,172	789
Acquired Loans | Commercial/Agricultural non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0	0
Acquired Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	20,053	13,032
Acquired Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	11,380	4,653
1 to 5
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	715,942	567,176
1 to 5 | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	225,769	184,857
1 to 5 | Residential real estate: | Purchased HELOC loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	18,071
1 to 5 | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	154,748	88,375
1 to 5 | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	61,567	25,340
1 to 5 | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	25,857	19,135
1 to 5 | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	19,138	16,464
1 to 5 | Consumer non-real estate: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	85,330	118,809
1 to 5 | Consumer non-real estate: | Purchased indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	29,555	49,221
1 to 5 | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	20,491	19,635
1 to 5 | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	53,359	30,800
1 to 5 | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	22,057	14,540
1 to 5 | Originated Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	467,795	468,045
1 to 5 | Originated Loans | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	130,837	159,244
1 to 5 | Originated Loans | Residential real estate: | Purchased HELOC loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	18,071
1 to 5 | Originated Loans | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	96,953	58,768
1 to 5 | Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	10,051	3,418
1 to 5 | Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	24,338	18,935
1 to 5 | Originated Loans | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	12,399	12,977
1 to 5 | Originated Loans | Consumer non-real estate: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	85,330	118,809
1 to 5 | Originated Loans | Consumer non-real estate: | Purchased indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	29,555	49,221
1 to 5 | Originated Loans | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	14,361	18,889
1 to 5 | Originated Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	35,102	17,790
1 to 5 | Originated Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	10,798	9,994
1 to 5 | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	248,147	99,131
1 to 5 | Acquired Loans | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	94,932	25,613
1 to 5 | Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	57,795	29,607
1 to 5 | Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	51,516	21,922
1 to 5 | Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,519	200
1 to 5 | Acquired Loans | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	6,739	3,487
1 to 5 | Acquired Loans | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	6,130	746
1 to 5 | Acquired Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	18,257	13,010
1 to 5 | Acquired Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	11,259	4,546
6
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	4,615	820
6 | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	873	603
6 | Residential real estate: | Purchased HELOC loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0
6 | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,863	167
6 | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	763	11
6 | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
6 | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
6 | Consumer non-real estate: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	8	10
6 | Consumer non-real estate: | Purchased indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
6 | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	11
6 | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	372	11
6 | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	736	7
6 | Originated Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,262	10
6 | Originated Loans | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
6 | Originated Loans | Residential real estate: | Purchased HELOC loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0
6 | Originated Loans | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	49	0
6 | Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	497	0
6 | Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
6 | Originated Loans | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
6 | Originated Loans | Consumer non-real estate: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	8	10
6 | Originated Loans | Consumer non-real estate: | Purchased indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
6 | Originated Loans | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
6 | Originated Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
6 | Originated Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	708	0
6 | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,353	810
6 | Acquired Loans | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	873	603
6 | Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,814	167
6 | Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	266	11
6 | Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
6 | Acquired Loans | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
6 | Acquired Loans | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	11
6 | Acquired Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	372	11
6 | Acquired Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	28	7
7
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	16,056	6,167
7 | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	2,921	2,193
7 | Residential real estate: | Purchased HELOC loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0
7 | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,351	398
7 | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	5,672	2,847
7 | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	371	0
7 | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	570	116
7 | Consumer non-real estate: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	394	254
7 | Consumer non-real estate: | Purchased indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
7 | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	177	69
7 | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,520	190
7 | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,080	100
7 | Originated Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,536	2,102
7 | Originated Loans | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,543	1,632
7 | Originated Loans | Residential real estate: | Purchased HELOC loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0
7 | Originated Loans | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	153	0
7 | Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	80	0
7 | Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	148	0
7 | Originated Loans | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
7 | Originated Loans | Consumer non-real estate: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	394	254
7 | Originated Loans | Consumer non-real estate: | Purchased indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
7 | Originated Loans | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	135	37
7 | Originated Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	96	179
7 | Originated Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	987	0
7 | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	12,520	4,065
7 | Acquired Loans | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,378	561
7 | Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,198	398
7 | Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	5,592	2,847
7 | Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	223	0
7 | Acquired Loans | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	570	116
7 | Acquired Loans | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	42	32
7 | Acquired Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,424	11
7 | Acquired Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	93	100
8
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Residential real estate: | Purchased HELOC loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0
8 | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Consumer non-real estate: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Consumer non-real estate: | Purchased indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Originated Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Originated Loans | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Originated Loans | Residential real estate: | Purchased HELOC loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0
8 | Originated Loans | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Originated Loans | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Originated Loans | Consumer non-real estate: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Originated Loans | Consumer non-real estate: | Purchased indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Originated Loans | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Originated Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Originated Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Acquired Loans | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Acquired Loans | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Acquired Loans | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Acquired Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
8 | Acquired Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	85
9 | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	85
9 | Residential real estate: | Purchased HELOC loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0
9 | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Consumer non-real estate: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Consumer non-real estate: | Purchased indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Originated Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	85
9 | Originated Loans | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	85
9 | Originated Loans | Residential real estate: | Purchased HELOC loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0
9 | Originated Loans | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Originated Loans | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Originated Loans | Consumer non-real estate: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Originated Loans | Consumer non-real estate: | Purchased indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Originated Loans | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Originated Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Originated Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Acquired Loans | Residential real estate: | One to four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Acquired Loans | Commercial/Agricultural real estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Acquired Loans | Consumer non-real estate: | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Acquired Loans | Commercial/Agricultural non-real estate: | Commercial non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
9 | Acquired Loans | Commercial/Agricultural non-real estate: | Agricultural non-real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 0	$ 0

Loans, Allowance for Loan Los58

Loans, Allowance for Loan Losses and Impaired Loans - Schedule of Financing Receivables To Related Party (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Loans and Leases Receivable, Related Parties [Roll Forward]
Balance—beginning of year	$ 596	$ 221	$ 596	$ 221	$ 232
New loan originations	2	1
Repayments	(13)	(12)
Previously originated loans for new director	386	0
Balance—end of year	$ 596	$ 221
Available and unused lines of credit			$ 18	$ 18

Loans, Allowance for Loan Los59

Loans, Allowance for Loan Losses and Impaired Loans - Schedule of Allowance for Loans by Loan Portfolio (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Allowance for Loan Losses:
Beginning balance	$ 6,068	$ 6,496
Charge-offs	(631)	(718)
Recoveries	186	215
Provision	319	75
Segment reclassifications	0	0
Ending balance	5,942	6,068
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Amount of allowance for loan losses arising from loans individually evaluated for impairment	301	628
Amount of allowance for loan losses arising from loans collectively evaluated for impairment	5,641	5,440
Loans Receivable:
Ending balance of originated loans	732,995	574,439
Ending balance: individually evaluated for impairment	7,510	5,397
Ending balance: collectively evaluated for impairment	725,485	569,042
Residential real estate:
Allowance for Loan Losses:
Beginning balance	2,039	2,364
Charge-offs	(233)	(140)
Recoveries	14	11
Provision	81	30
Segment reclassifications	(443)	(226)
Ending balance	1,458	2,039
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Amount of allowance for loan losses arising from loans individually evaluated for impairment	214	503
Amount of allowance for loan losses arising from loans collectively evaluated for impairment	1,244	1,536
Loans Receivable:
Ending balance of originated loans	247,634	187,432
Ending balance: individually evaluated for impairment	4,021	4,640
Ending balance: collectively evaluated for impairment	243,613	182,792
Commercial/Agricultural real estate:
Allowance for Loan Losses:
Beginning balance	1,883	989
Charge-offs	0	0
Recoveries	0	0
Provision	130	10
Segment reclassifications	510	884
Ending balance	2,523	1,883
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Amount of allowance for loan losses arising from loans individually evaluated for impairment	0	0
Amount of allowance for loan losses arising from loans collectively evaluated for impairment	2,523	1,883
Loans Receivable:
Ending balance of originated loans	273,900	151,129
Ending balance: individually evaluated for impairment	996	0
Ending balance: collectively evaluated for impairment	272,904	151,129
Consumer non-real estate:
Allowance for Loan Losses:
Beginning balance	1,466	1,620
Charge-offs	(389)	(460)
Recoveries	171	204
Provision	59	35
Segment reclassifications	(371)	67
Ending balance	936	1,466
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Amount of allowance for loan losses arising from loans individually evaluated for impairment	64	85
Amount of allowance for loan losses arising from loans collectively evaluated for impairment	872	1,381
Loans Receivable:
Ending balance of originated loans	132,337	190,230
Ending balance: individually evaluated for impairment	702	578
Ending balance: collectively evaluated for impairment	131,635	189,652
Commercial/Agricultural non-real estate:
Allowance for Loan Losses:
Beginning balance	652	1,271
Charge-offs	(9)	(118)
Recoveries	1	0
Provision	41	0
Segment reclassifications	212	(501)
Ending balance	897	652
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Amount of allowance for loan losses arising from loans individually evaluated for impairment	23	40
Amount of allowance for loan losses arising from loans collectively evaluated for impairment	874	612
Loans Receivable:
Ending balance of originated loans	79,124	45,648
Ending balance: individually evaluated for impairment	1,791	179
Ending balance: collectively evaluated for impairment	77,333	45,469
Unallocated
Allowance for Loan Losses:
Beginning balance	28	252
Charge-offs	0	0
Recoveries	0	0
Provision	8	0
Segment reclassifications	92	(224)
Ending balance	128	28
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Amount of allowance for loan losses arising from loans individually evaluated for impairment	0	0
Amount of allowance for loan losses arising from loans collectively evaluated for impairment	128	28
Loans Receivable:
Ending balance of originated loans	0	0
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	0	0
Originated Loans
Allowance for Loan Losses:
Beginning balance	6,068
Ending balance	5,942	6,068
Loans Receivable:
Ending balance of originated loans	468,975	470,433
Originated Loans | Residential real estate:
Allowance for Loan Losses:
Beginning balance	2,039
Ending balance	1,458	2,039
Loans Receivable:
Ending balance of originated loans	150,451	160,655
Originated Loans | Commercial/Agricultural real estate:
Allowance for Loan Losses:
Beginning balance	1,883
Ending balance	2,523	1,883
Loans Receivable:
Ending balance of originated loans	144,668	92,374
Originated Loans | Consumer non-real estate:
Allowance for Loan Losses:
Beginning balance	1,466
Ending balance	936	1,466
Loans Receivable:
Ending balance of originated loans	126,165	189,441
Originated Loans | Commercial/Agricultural non-real estate:
Allowance for Loan Losses:
Beginning balance	652
Ending balance	897	652
Loans Receivable:
Ending balance of originated loans	47,691	27,963
Originated Loans | Unallocated
Allowance for Loan Losses:
Beginning balance	28
Ending balance	128	28
Loans Receivable:
Ending balance of originated loans	0	0
Accountable for under ASC 310-30 (PCI loans)
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans	12,035	3,787
Accountable for under ASC 310-30 (PCI loans) | Residential real estate:
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans	586	577
Accountable for under ASC 310-30 (PCI loans) | Commercial/Agricultural real estate:
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans	7,995	2,309
Accountable for under ASC 310-30 (PCI loans) | Consumer non-real estate:
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans	0	4
Accountable for under ASC 310-30 (PCI loans) | Commercial/Agricultural non-real estate:
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans	3,454	897
Accountable for under ASC 310-30 (PCI loans) | Unallocated
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans	0	0
Other Acquired Loans
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans	251,985	100,219
Other Acquired Loans | Residential real estate:
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans	96,597	26,200
Other Acquired Loans | Commercial/Agricultural real estate:
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans	121,237	56,446
Other Acquired Loans | Consumer non-real estate:
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans	6,172	785
Other Acquired Loans | Commercial/Agricultural non-real estate:
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans	27,979	16,788
Other Acquired Loans | Unallocated
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans		0
Acquired Loans
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Loans Receivable:
Ending balance of originated loans	264,020
Acquired Loans | Residential real estate:
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Acquired Loans | Commercial/Agricultural real estate:
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Acquired Loans | Consumer non-real estate:
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Acquired Loans | Commercial/Agricultural non-real estate:
Allowance for Loan Losses:
Beginning balance	0
Ending balance	0	0
Acquired Loans | Unallocated
Allowance for Loan Losses:
Beginning balance	0
Ending balance	$ 0	$ 0

Loans, Allowance for Loan Los60

Loans, Allowance for Loan Losses and Impaired Loans - Schedule of Accounts, Notes, Loans and Financing Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Loans receivable
Ending balance of originated loans	$ 732,995	$ 574,439
Performing loans
Loans receivable
TDR loans	5,230	3,218
Other loans	719,725	567,951
Ending balance of originated loans	724,955	571,169
Nonperforming loans
Loans receivable
TDR loans	621	515
Other loans	7,419	2,755
Ending balance of originated loans	8,040	3,270
Residential real estate:
Loans receivable
Ending balance of originated loans	247,634	187,432
Residential real estate: | Performing loans
Loans receivable
TDR loans	3,085	2,942
Other loans	242,198	182,747
Ending balance of originated loans	245,283	185,689
Residential real estate: | Nonperforming loans
Loans receivable
TDR loans	593	471
Other loans	1,758	1,272
Ending balance of originated loans	2,351	1,743
Commercial/Agricultural real estate:
Loans receivable
Ending balance of originated loans	273,900	151,129
Commercial/Agricultural real estate: | Performing loans
Loans receivable
TDR loans	1,890	0
Other loans	268,619	150,181
Ending balance of originated loans	270,509	150,181
Commercial/Agricultural real estate: | Nonperforming loans
Loans receivable
TDR loans	0	0
Other loans	3,391	948
Ending balance of originated loans	3,391	948
Consumer non-real estate:
Loans receivable
Ending balance of originated loans	132,337	190,230
Consumer non-real estate: | Performing loans
Loans receivable
TDR loans	167	276
Other loans	131,695	189,653
Ending balance of originated loans	131,862	189,929
Consumer non-real estate: | Nonperforming loans
Loans receivable
TDR loans	28	44
Other loans	447	257
Ending balance of originated loans	475	301
Commercial/Agricultural non-real estate:
Loans receivable
Ending balance of originated loans	79,124	45,648
Commercial/Agricultural non-real estate: | Performing loans
Loans receivable
TDR loans	88	0
Other loans	77,213	45,370
Ending balance of originated loans	77,301	45,370
Commercial/Agricultural non-real estate: | Nonperforming loans
Loans receivable
TDR loans	0	0
Other loans	1,823	278
Ending balance of originated loans	$ 1,823	$ 278

Loans, Allowance for Loan Los61

Loans, Allowance for Loan Losses and Impaired Loans - Past Due Financing Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	$ 11,003	$ 6,009
Current	725,610	568,239
Total Loans	736,613	574,248
Nonaccrual Loans	7,452	3,191
Recorded Investment 89 Days and Accruing	589	380
30-59 Days Past Due
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	5,429	1,777
60-89 Days Past Due
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	982	1,369
Greater Than 89 Days
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	4,592	2,863
Residential real estate: | One to four family
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	4,432	3,192
Current	225,131	184,546
Total Loans	229,563	187,738
Nonaccrual Loans	2,200	1,595
Recorded Investment 89 Days and Accruing	151	123
Residential real estate: | Purchased HELOC loans
Aging analysis of the Bank's real estate and consumer loans
Current	17,821
Total Loans	18,071
Nonaccrual Loans	0
Recorded Investment 89 Days and Accruing	0
Residential real estate: | 30-59 Days Past Due | One to four family
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	2,811	1,062
Residential real estate: | 30-59 Days Past Due | Purchased HELOC loans
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	250
Residential real estate: | 60-89 Days Past Due | One to four family
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	393	892
Residential real estate: | 60-89 Days Past Due | Purchased HELOC loans
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	0
Residential real estate: | Greater Than 89 Days | One to four family
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	1,228	1,238
Residential real estate: | Greater Than 89 Days | Purchased HELOC loans
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	0
Commercial/Agricultural real estate: | Commercial real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	684	483
Current	159,278	88,457
Total Loans	159,962	88,940
Nonaccrual Loans	572	483
Recorded Investment 89 Days and Accruing	0	0
Commercial/Agricultural real estate: | Agricultural real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	2,462	623
Current	65,540	27,575
Total Loans	68,002	28,198
Nonaccrual Loans	2,723	623
Recorded Investment 89 Days and Accruing	96	0
Commercial/Agricultural real estate: | Multi-family real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	0	0
Current	26,228	19,135
Total Loans	26,228	19,135
Nonaccrual Loans	0	0
Recorded Investment 89 Days and Accruing	0	0
Commercial/Agricultural real estate: | Construction and land development
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	0	62
Current	19,708	16,518
Total Loans	19,708	16,580
Nonaccrual Loans	0	0
Recorded Investment 89 Days and Accruing	0	0
Commercial/Agricultural real estate: | 30-59 Days Past Due | Commercial real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	332	33
Commercial/Agricultural real estate: | 30-59 Days Past Due | Agricultural real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	57	0
Commercial/Agricultural real estate: | 30-59 Days Past Due | Multi-family real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	0	0
Commercial/Agricultural real estate: | 30-59 Days Past Due | Construction and land development
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	0	27
Commercial/Agricultural real estate: | 60-89 Days Past Due | Commercial real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	70	83
Commercial/Agricultural real estate: | 60-89 Days Past Due | Agricultural real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	0	0
Commercial/Agricultural real estate: | 60-89 Days Past Due | Multi-family real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	0	0
Commercial/Agricultural real estate: | 60-89 Days Past Due | Construction and land development
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	0	0
Commercial/Agricultural real estate: | Greater Than 89 Days | Commercial real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	282	367
Commercial/Agricultural real estate: | Greater Than 89 Days | Agricultural real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	2,405	623
Commercial/Agricultural real estate: | Greater Than 89 Days | Multi-family real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	0	0
Commercial/Agricultural real estate: | Greater Than 89 Days | Construction and land development
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	0	35
Consumer non-real estate: | Originated indirect paper
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	661	356
Current	85,071	118,717
Total Loans	85,732	119,073
Nonaccrual Loans	74	158
Recorded Investment 89 Days and Accruing	80	53
Consumer non-real estate: | Purchased indirect paper
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	1,127	823
Current	28,428	48,398
Total Loans	29,555	49,221
Nonaccrual Loans	0	0
Recorded Investment 89 Days and Accruing	221	199
Consumer non-real estate: | Other Consumer
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	256	154
Current	20,412	19,561
Total Loans	20,668	19,715
Nonaccrual Loans	76	54
Recorded Investment 89 Days and Accruing	25	5
Consumer non-real estate: | 30-59 Days Past Due | Originated indirect paper
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	426	204
Consumer non-real estate: | 30-59 Days Past Due | Purchased indirect paper
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	601	338
Consumer non-real estate: | 30-59 Days Past Due | Other Consumer
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	120	104
Consumer non-real estate: | 60-89 Days Past Due | Originated indirect paper
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	112	30
Consumer non-real estate: | 60-89 Days Past Due | Purchased indirect paper
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	305	286
Consumer non-real estate: | 60-89 Days Past Due | Other Consumer
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	79	16
Consumer non-real estate: | Greater Than 89 Days | Originated indirect paper
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	123	122
Consumer non-real estate: | Greater Than 89 Days | Purchased indirect paper
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	221	199
Consumer non-real estate: | Greater Than 89 Days | Other Consumer
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	57	34
Commercial/Agricultural non-real estate: | Commercial non-real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	254	166
Current	54,997	30,835
Total Loans	55,251	31,001
Nonaccrual Loans	1,618	188
Recorded Investment 89 Days and Accruing	0	0
Commercial/Agricultural non-real estate: | Agricultural non-real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	877	150
Current	22,996	14,497
Total Loans	23,873	14,647
Nonaccrual Loans	189	90
Recorded Investment 89 Days and Accruing	16	0
Commercial/Agricultural non-real estate: | 30-59 Days Past Due | Commercial non-real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	75	9
Commercial/Agricultural non-real estate: | 30-59 Days Past Due | Agricultural non-real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	757	0
Commercial/Agricultural non-real estate: | 60-89 Days Past Due | Commercial non-real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	23	2
Commercial/Agricultural non-real estate: | 60-89 Days Past Due | Agricultural non-real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	0	60
Commercial/Agricultural non-real estate: | Greater Than 89 Days | Commercial non-real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	156	155
Commercial/Agricultural non-real estate: | Greater Than 89 Days | Agricultural non-real estate
Aging analysis of the Bank's real estate and consumer loans
Total Past Due	$ 120	$ 90

Loans, Allowance for Loan Los62

Loans, Allowance for Loan Losses and Impaired Loans - Impaired Financing Receivables (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Bank impaired loans
With no related allowance recorded, Recorded investment	$ 22,869	$ 7,957
With an allowance recorded, Recorded investment	1,490	2,412
Recorded investment, Total	24,359	10,369
With no related allowance recorded, unpaid principal balance	22,869	7,957
With an allowance recorded, unpaid principal balance	1,490	2,412
Unpaid principal balance, Total	24,359	10,369
Impaired Financing Receivable, Related Allowance	302	606
With no related allowance recorded, Average recorded investment	10,868	8,171
With an allowance recorded, Average recorded investment	1,952	2,183
Average recorded investment, Total	12,820	10,354
With no related allowance recorded, Interest income recognized	38	237
With an allowance recorded, Interest income recognized	2	61
Interest income recognized, Total	40	298
Residential real estate:
Bank impaired loans
With no related allowance recorded, Recorded investment	4,015	3,807
With an allowance recorded, Recorded investment	1,198	1,891
Recorded investment, Total	5,213	5,698
With no related allowance recorded, unpaid principal balance	4,015	3,807
With an allowance recorded, unpaid principal balance	1,198	1,891
Unpaid principal balance, Total	5,213	5,698
Impaired Financing Receivable, Related Allowance	214	503
With no related allowance recorded, Average recorded investment	3,440	3,817
With an allowance recorded, Average recorded investment	1,545	1,808
Average recorded investment, Total	4,985	5,625
With no related allowance recorded, Interest income recognized	9	132
With an allowance recorded, Interest income recognized	2	50
Interest income recognized, Total	11	182
Commercial/Agricultural real estate:
Bank impaired loans
With no related allowance recorded, Recorded investment	12,626	2,326
With an allowance recorded, Recorded investment	0	0
Recorded investment, Total	12,626	2,326
With no related allowance recorded, unpaid principal balance	12,626	2,326
With an allowance recorded, unpaid principal balance	0	0
Unpaid principal balance, Total	12,626	2,326
Impaired Financing Receivable, Related Allowance	0	0
With no related allowance recorded, Average recorded investment	4,460	2,326
With an allowance recorded, Average recorded investment	0	0
Average recorded investment, Total	4,460	2,326
With no related allowance recorded, Interest income recognized	2	27
With an allowance recorded, Interest income recognized	0	0
Interest income recognized, Total	2	27
Consumer non-real estate:
Bank impaired loans
With no related allowance recorded, Recorded investment	433	247
With an allowance recorded, Recorded investment	269	342
Recorded investment, Total	702	589
With no related allowance recorded, unpaid principal balance	433	247
With an allowance recorded, unpaid principal balance	269	342
Unpaid principal balance, Total	702	589
Impaired Financing Receivable, Related Allowance	65	76
With no related allowance recorded, Average recorded investment	340	451
With an allowance recorded, Average recorded investment	306	339
Average recorded investment, Total	646	790
With no related allowance recorded, Interest income recognized	16	36
With an allowance recorded, Interest income recognized	0	10
Interest income recognized, Total	16	46
Commercial/Agricultural non-real estate:
Bank impaired loans
With no related allowance recorded, Recorded investment	5,795	1,577
With an allowance recorded, Recorded investment	23	179
Recorded investment, Total	5,818	1,756
With no related allowance recorded, unpaid principal balance	5,795	1,577
With an allowance recorded, unpaid principal balance	23	179
Unpaid principal balance, Total	5,818	1,756
Impaired Financing Receivable, Related Allowance	23	27
With no related allowance recorded, Average recorded investment	2,628	1,577
With an allowance recorded, Average recorded investment	101	36
Average recorded investment, Total	2,729	1,613
With no related allowance recorded, Interest income recognized	11	42
With an allowance recorded, Interest income recognized	0	1
Interest income recognized, Total	$ 11	$ 43

Loans, Allowance for Loan Los63

Loans, Allowance for Loan Losses and Impaired Loans - Troubled Debt Restructuring, Loans by Accrual Status (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Receivables [Abstract]
Accrual status	$ 5,230	$ 3,218
Non-accrual status	621	515
Total	$ 5,851	$ 3,733

Loans, Allowance for Loan Los64

Loans, Allowance for Loan Losses and Impaired Loans - Troubled Debt Restructurings on Financing Receivables (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2017USD ($)TDR	Sep. 30, 2016USD ($)TDR
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | TDR	23	7
Pre-Modification Outstanding Recorded Investment	$ 2,930	$ 417
Post-Modification Outstanding Recorded Investment	2,930	417
Specific Reserve	$ 24	$ 74
Residential real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | TDR	9	4
Pre-Modification Outstanding Recorded Investment	$ 915	$ 396
Post-Modification Outstanding Recorded Investment	915	396
Specific Reserve	$ 24	$ 74
Commercial/Agricultural real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | TDR	8	0
Pre-Modification Outstanding Recorded Investment	$ 1,890	$ 0
Post-Modification Outstanding Recorded Investment	1,890	0
Specific Reserve	$ 0	$ 0
Consumer non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | TDR	4	3
Pre-Modification Outstanding Recorded Investment	$ 32	$ 21
Post-Modification Outstanding Recorded Investment	32	21
Specific Reserve	$ 0	$ 0
Commercial/Agricultural non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | TDR	2	0
Pre-Modification Outstanding Recorded Investment	$ 93	$ 0
Post-Modification Outstanding Recorded Investment	93	0
Specific Reserve	0	0
Modified Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	0	37
Modified Rate | Residential real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	0	37
Modified Rate | Commercial/Agricultural real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	0	0
Modified Rate | Consumer non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	0	0
Modified Rate | Commercial/Agricultural non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	0	0
Modified Payment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	0	0
Modified Payment | Residential real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	0	0
Modified Payment | Commercial/Agricultural real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	0	0
Modified Payment | Consumer non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	0	0
Modified Payment | Commercial/Agricultural non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	0	0
Modified Under- writing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	2,505	380
Modified Under- writing | Residential real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	679	359
Modified Under- writing | Commercial/Agricultural real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	1,822	0
Modified Under- writing | Consumer non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	4	21
Modified Under- writing | Commercial/Agricultural non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	0	0
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	425	0
Other | Residential real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	236	0
Other | Commercial/Agricultural real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	68	0
Other | Consumer non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	28	0
Other | Commercial/Agricultural non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan restructuring	$ 93	$ 0

Loans, Allowance for Loan Los65

Loans, Allowance for Loan Losses and Impaired Loans - Schedule of Loans by Loan Class Modified in a Troubled Debt Restructuring (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2017USD ($)TDRContract	Sep. 30, 2016USD ($)TDRContract
Troubled Debt Restructuring
Number of Modifications | TDR	23	7
Recorded Investment	$ 5,851	$ 3,733
Residential real estate:
Troubled Debt Restructuring
Number of Modifications | TDR	9	4
Commercial/Agricultural real estate:
Troubled Debt Restructuring
Number of Modifications | TDR	8	0
Consumer non-real estate:
Troubled Debt Restructuring
Number of Modifications | TDR	4	3
Commercial/Agricultural non-real estate:
Troubled Debt Restructuring
Number of Modifications | TDR	2	0
Originated Loans
Troubled Debt Restructuring
Number of Modifications | Contract	62	53
Recorded Investment	$ 5,851	$ 3,733
Originated Loans | Residential real estate:
Troubled Debt Restructuring
Number of Modifications | Contract	32	32
Recorded Investment	$ 3,678	$ 3,413
Originated Loans | Commercial/Agricultural real estate:
Troubled Debt Restructuring
Number of Modifications | Contract	8	0
Recorded Investment	$ 1,890	$ 0
Originated Loans | Consumer non-real estate:
Troubled Debt Restructuring
Number of Modifications | Contract	20	21
Recorded Investment	$ 195	$ 320
Originated Loans | Commercial/Agricultural non-real estate:
Troubled Debt Restructuring
Number of Modifications | Contract	2	0
Recorded Investment	$ 88	$ 0
Acquired Loans
Troubled Debt Restructuring
Recorded Investment	$ 12,035	$ 3,787

Loans, Allowance for Loan Los66

Loans, Allowance for Loan Losses and Impaired Loans - Schedule of Restructured Loans In Default (Details) $ in Thousands	Sep. 30, 2016USD ($)Contract	Sep. 30, 2015USD ($)Contract	Sep. 30, 2017Contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | Contract	7	21	1
Recorded Investment | $	$ 621	$ 1,606
Residential real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | Contract	4	9
Recorded Investment | $	$ 593	$ 516
Commercial/Agricultural real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | Contract	0	6
Recorded Investment | $	$ 0	$ 948
Consumer non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | Contract	3	4
Recorded Investment | $	$ 28	$ 43
Commercial/Agricultural non-real estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | Contract	0	2
Recorded Investment | $	$ 0	$ 99

Loans, Allowance for Loan Los67

Loans, Allowance for Loan Losses and Impaired Loans - Schedule of Acquired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance	$ 732,995	$ 574,439
Carrying amount	732,995	$ 574,439
Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance	264,020
Carrying amount	258,931
Receivables Acquired with Deteriorated Credit Quality | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance	12,035
Carrying amount	9,838
Non-PCI Loans | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance	251,985
Carrying amount	$ 249,093

Loans, Allowance for Loan Los68

Loans, Allowance for Loan Losses and Impaired Loans - Schedule of Accretable Yield (Details) - Acquired Loans - USD ($) $ in Thousands	5 Months Ended	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2017
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at beginning of period	$ 0	$ 192
Acquisitions	203	2,802
Reduction due to unexpected early payoffs	0	0
Reclass from non-accretable difference	0	0
Disposals/transfers	0	0
Accretion	(11)	(101)
Balance at end of period	$ 192	$ 2,893

Loans, Allowance for Loan Los69

Loans, Allowance for Loan Losses and Impaired Loans - Schedule of Purchased Loans, Impaired and Non-Impaired (Details) - Acquired Loans $ in Thousands	May 16, 2016USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually required cash flows at acquisition	$ 189,077
Non-accretable difference (expected losses and foregone interest)	(936)
Cash flows expected to be collected at acquisition	188,141
Accretable yield	(2,802)
Fair value of acquired loans at acquisition	185,339
Performing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually required cash flows at acquisition	179,895
Non-accretable difference (expected losses and foregone interest)	0
Cash flows expected to be collected at acquisition	179,895
Accretable yield	(2,802)
Fair value of acquired loans at acquisition	177,093
Receivables Acquired with Deteriorated Credit Quality
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually required cash flows at acquisition	9,182
Non-accretable difference (expected losses and foregone interest)	(936)
Cash flows expected to be collected at acquisition	8,246
Accretable yield	0
Fair value of acquired loans at acquisition	$ 8,246

Loans, Allowance for Loan Los70

Loans, Allowance for Loan Losses and Impaired Loans - (Details Textual)	Sep. 30, 2016USD ($)TDRContract	Sep. 30, 2015Contract	Sep. 30, 2017USD ($)TDR	Sep. 30, 2017USD ($)TDRContract	Sep. 30, 2016USD ($)TDR	Dec. 31, 2015	Aug. 18, 2017USD ($)	May 16, 2016USD ($)	Feb. 29, 2016USD ($)	Jan. 31, 2016	Dec. 31, 2014USD ($)	Oct. 31, 2012USD ($)
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Carrying amount	$ 574,439,000		$ 732,995,000	$ 732,995,000	$ 574,439,000
Board of Director limit on purchase of loans under loan purchase agreement											$ 50,000,000	$ 40,000,000
Percentage of loan amounts deposited into cash reserve account												3.00%
Maximum restricted reserve account balance												$ 1,000,000
Gross loans	$ 574,248,000		736,613,000	736,613,000	$ 574,248,000
Cash reserve account balance			$ 925,000	$ 925,000
Interest rate, stated percentage	1.29%		0.99%	0.99%	1.29%					4.25%
Payments for loans				$ (20,366,000)	$ (2,846,000)
Total impaired loans	$ 10,369,000		$ 24,359,000	24,359,000	10,369,000
Recorded Investment	$ 3,733,000		$ 5,851,000	$ 5,851,000	$ 3,733,000
Number of delinquent TDR | TDR	3		2	2	3
Recorded investment in delinquent TDR	$ 226,000		$ 504,000	$ 504,000	$ 226,000
Subsequent default, number of contracts | Contract	7	21		1
Nonperforming loans
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Past due, minimum period				90 days	90 days
Substandard
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Gross loans	$ 6,167,000		16,056,000	$ 16,056,000	$ 6,167,000
Recorded Investment	2,849,000		6,473,000	$ 6,473,000	2,849,000
Consumer non-real estate
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Interest rate				4.25%		4.00%
Central Bank in Rice Lake and Barron
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Carrying amount									$ 16,363,000
Community Bank of Northern Wisconsin
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Carrying amount								$ 111,740,000
Wells Federal
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Carrying amount							$ 189,077,000
Originated Loans
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Gross loans	470,242,000		472,593,000	$ 472,593,000	470,242,000
Recorded Investment	3,733,000		5,851,000	5,851,000	3,733,000
Originated Loans | Substandard
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Gross loans	2,102,000		3,536,000	3,536,000	2,102,000
Originated Loans | Performing loans
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Recorded Investment	3,218,000		5,230,000	5,230,000	3,218,000
Acquired Loans
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Carrying amount			258,931,000	258,931,000
Gross loans	104,006,000		264,020,000	264,020,000	104,006,000
Recorded Investment	3,787,000		12,035,000	12,035,000	3,787,000
Non-accretable yield on purchased credit impaired loans	1,532,000		2,196,000	2,196,000	1,532,000
Acquired Loans | Substandard
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Gross loans	4,065,000		12,520,000	12,520,000	4,065,000
Recorded Investment	1,185,000		2,387,000	2,387,000	1,185,000
Consumer non-real estate:
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Total impaired loans	$ 589,000		702,000	702,000	589,000
Subsequent default, number of contracts | Contract	3	4
Consumer non-real estate: | Purchased indirect paper
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Gross loans	$ 49,221,000		29,555,000	29,555,000	49,221,000
Consumer non-real estate: | Purchased indirect paper | Substandard
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Gross loans	0		0	0	0
Consumer non-real estate: | Originated Loans
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Recorded Investment	320,000		195,000	195,000	320,000
Consumer non-real estate: | Originated Loans | Purchased indirect paper
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Gross loans	49,221,000		29,555,000	29,555,000	49,221,000
Consumer non-real estate: | Originated Loans | Purchased indirect paper | Substandard
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Gross loans	0		0	0	0
Residential real estate:
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Total impaired loans	$ 5,698,000		5,213,000	5,213,000	5,698,000
Subsequent default, number of contracts | Contract	4	9
Residential real estate: | Originated Loans
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Recorded Investment	$ 3,413,000		3,678,000	3,678,000	$ 3,413,000
Residential real estate: | Acquired Loans
Loans allowance for loan losses and impaired loans (Textual) [Abstract]
Gross loans			$ 18,071,000	$ 18,071,000
Loans acquired, participation percentage			90.00%	90.00%
Payments for loans			$ 23,977,000
Loan servicing fee, basis points			0.04%	0.04%

Mortgage Servicing Rights (Deta

Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Deposits	$ 742,504	$ 557,677
Mortgage servicing rights
Finite-Lived Intangible Assets [Line Items]
Residential mortgage loans serviced for others	282,392	0
Core deposit intangible
Finite-Lived Intangible Assets [Line Items]
Deposits	$ 3,208	$ 0

Mortgage Servicing Rights - Mor

Mortgage Servicing Rights - Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of period	$ 0
Net book value at end of period	1,886	$ 0
Fair value of MSR asset at end of period	1,951	0
Mortgage servicing rights
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of period	0	0
MSR asset acquired	1,909	0
MSRs capitalized	13	0
Amortization during the period	(36)	0
Valuation allowance at end of period	0	0
Net book value at end of period	1,886	0
Fair value of MSR asset at end of period	1,951	0
Residential mortgage loans serviced for others	$ 282,392	$ 0
Net book value of MSR asset to loans serviced for others	0.67%

Mortgage Servicing Rights - Amo

Mortgage Servicing Rights - Amortization Expense (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Total	$ 5,449	$ 872
Mortgage servicing rights
Acquired Finite-Lived Intangible Assets [Line Items]
2,018	387
2,019	338
2,020	293
2,021	243
2,022	195
After 2,022	430
Total	$ 1,886

Investment Securities - Availab

Investment Securities - Available For Sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale
Amortized Cost	$ 96,328	$ 79,100
Gross Unrealized Gains	512	1,078
Gross Unrealized Losses	957	55
Estimated Fair Value	95,883	80,123
U.S. government agency obligations
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale
Amortized Cost	18,454	16,388
Gross Unrealized Gains	35	48
Gross Unrealized Losses	448	29
Estimated Fair Value	18,041	16,407
Obligations of states and political subdivisions
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale
Amortized Cost	35,656	33,405
Gross Unrealized Gains	270	630
Gross Unrealized Losses	131	23
Estimated Fair Value	35,795	34,012
Mortgage-backed securities
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale
Amortized Cost	36,661	28,861
Gross Unrealized Gains	124	389
Gross Unrealized Losses	311	3
Estimated Fair Value	36,474	29,247
Federal Agricultural Mortgage Corporation
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale
Amortized Cost		70
Gross Unrealized Gains		11
Gross Unrealized Losses		0
Estimated Fair Value		81
Trust preferred securities
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale
Amortized Cost		376
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Estimated Fair Value		$ 376
Agency securities
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale
Amortized Cost	147
Gross Unrealized Gains	83
Gross Unrealized Losses	0
Estimated Fair Value	230
Corporate debt securities
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale
Amortized Cost	5,410
Gross Unrealized Gains	0
Gross Unrealized Losses	67
Estimated Fair Value	$ 5,343

Investment Securities - Held To

Investment Securities - Held To Maturity Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 5,453	$ 6,669
Gross Unrealized Gains	153	275
Gross Unrealized Losses	1	0
Estimated Fair Value	5,605	6,944
Obligations of states and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	1,311	1,315
Gross Unrealized Gains	17	20
Gross Unrealized Losses	0	0
Estimated Fair Value	1,328	1,335
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	4,142	5,354
Gross Unrealized Gains	136	255
Gross Unrealized Losses	1	0
Estimated Fair Value	$ 4,277	$ 5,609

Investment Securities - (Detail

Investment Securities - (Details Textual)	Sep. 30, 2017USD ($)
Line of Credit | U.S. government agency obligations
Debt Instrument [Line Items]
Available-for-sale securities pledged as collateral	$ 2,661,000
Specific Municipal Deposits | U.S. government agency obligations
Debt Instrument [Line Items]
Available-for-sale securities pledged as collateral	7,825,000
Specific Municipal Deposits | Mortgage-backed securities
Debt Instrument [Line Items]
Available-for-sale securities pledged as collateral	19,447,000
MPF Credit Enhancement Fee | Mortgage-backed securities
Debt Instrument [Line Items]
Available-for-sale securities pledged as collateral	1,312,000
Federal Reserve Bank
Debt Instrument [Line Items]
Long-term line of credit	$ 0

Investment Securities - Avail77

Investment Securities - Available For Sale Securities, Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Amortized Cost Due in one year or less	$ 160
Amortized Cost, Due after one year through five years	15,008
Amortized Cost, Due after five years through ten years	30,586
Amortized Cost, Due after ten years	13,766
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis	59,520
Amortized Cost	96,328	$ 79,100
Available-for-sale Securities, Securities without contractual maturities	147
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Estimated Fair Value, Due in one year or less	160
Estimated Fair Value, Due after one year through five years	15,056
Estimated Fair Value, Due after five years through ten years	30,330
Estimated Fair Value, Due after ten years	13,633
Estimated Fair Value, Debt Maturities, Single Maturity Date	59,179
Estimated Fair Value, Total available for sale securities	95,883	80,123
Estimated Fair Value, Securities without contractual maturities	230
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Amortized Cost, Due after one year through five years	1,311
Amortized Cost, Total held to maturity securities	5,453
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Estimated Fair Value, Due after one year through five years	1,328
Estimated Fair Value, Total held to maturity securities	5,605	$ 6,944
Mortgage-backed securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Available-for-sale Securities, Securities without contractual maturities	36,661
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Estimated Fair Value, Securities without contractual maturities	36,474
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Amortized Cost, Mortgage backed securities	4,142
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Estimated Fair Value, Mortgage backed securities	$ 4,277

Investment Securities - Held 78

Investment Securities - Held To Maturity Securities, Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Fair Value, Less than 12 months	$ 35,976	$ 8,309
Fair Value, 12 Months or More	20,386	4,969
Fair Value, Total	56,362	13,278
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] [Abstract]
Unrealized Loss, Less than 12 Months	411	12
Unrealized Loss, 12 Months or More	547	43
Unrealized Loss, Total	958	55
U.S. government agency obligations
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Fair Value, Less than 12 months	8,296	4,039
Fair Value, 12 Months or More	6,932	2,494
Fair Value, Total	15,228	6,533
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] [Abstract]
Unrealized Loss, Less than 12 Months	186	4
Unrealized Loss, 12 Months or More	262	25
Unrealized Loss, Total	448	29
Obligations of states and political subdivisions
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Fair Value, Less than 12 months	8,170	2,885
Fair Value, 12 Months or More	3,701	1,338
Fair Value, Total	11,871	4,223
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] [Abstract]
Unrealized Loss, Less than 12 Months	62	7
Unrealized Loss, 12 Months or More	70	15
Unrealized Loss, Total	132	22
Mortgage-backed securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Fair Value, Less than 12 months	14,167	1,385
Fair Value, 12 Months or More	9,753	1,137
Fair Value, Total	23,920	2,522
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] [Abstract]
Unrealized Loss, Less than 12 Months	96	1
Unrealized Loss, 12 Months or More	215	3
Unrealized Loss, Total	311	$ 4
Corporate debt securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Fair Value, Less than 12 months	5,343
Fair Value, 12 Months or More	0
Fair Value, Total	5,343
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] [Abstract]
Unrealized Loss, Less than 12 Months	67
Unrealized Loss, 12 Months or More	0
Unrealized Loss, Total	$ 67

Investment Securities - Unreali

Investment Securities - Unrealized Loss (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Fair Value, Less than 12 months	$ 406	$ 0
Fair Value, 12 Months or More	0	0
Fair Value, Total	406	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] [Abstract]
Unrealized Loss, Less than 12 Months	1	0
Unrealized Loss, 12 Months or More	0	0
Unrealized Loss, Total	1	0
Obligations of states and political subdivisions
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Fair Value, Less than 12 months	0	0
Fair Value, 12 Months or More	0	0
Fair Value, Total	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] [Abstract]
Unrealized Loss, Less than 12 Months	0	0
Unrealized Loss, 12 Months or More	0	0
Unrealized Loss, Total	0	0
Mortgage-backed securities
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Fair Value, Less than 12 months	406	0
Fair Value, 12 Months or More	0	0
Fair Value, Total	406	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] [Abstract]
Unrealized Loss, Less than 12 Months	1	0
Unrealized Loss, 12 Months or More	0	0
Unrealized Loss, Total	$ 1	$ 0

Office Properties and Equipme80

Office Properties and Equipment - Office Properties and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Office Properties and Equipment
Office properties and equipment, gross	$ 14,690	$ 11,503
Less—Accumulated depreciation	(5,045)	(6,165)
Office properties and equipment—net	9,645	5,338
Land
Office Properties and Equipment
Office properties and equipment, gross	1,573	1,130
Buildings
Office Properties and Equipment
Office properties and equipment, gross	8,877	4,409
Furniture, equipment, and vehicles
Office Properties and Equipment
Office properties and equipment, gross	$ 4,240	$ 5,964

Office Properties and Equipme81

Office Properties and Equipment - (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 864	$ 1,071

Goodwill and Intangible Asset82

Goodwill and Intangible Assets - (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Goodwill [Line Items]
Goodwill	$ 10,444	$ 4,663	$ 0
Wells Federal
Goodwill [Line Items]
Goodwill, acquired during period	$ 5,781	$ 0

Goodwill and Intangible Asset83

Goodwill and Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Goodwill [Roll Forward]
Balance at beginning of period	$ 4,663	$ 0
Balance at end of year	10,444	4,663
CBN
Goodwill [Roll Forward]
Select loans and deposits purchase from Central Bank	0	435
Goodwill, acquired during period	0	4,228
Wells Federal
Goodwill [Roll Forward]
Goodwill, acquired during period	$ 5,781	$ 0

Goodwill and Intangible Asset84

Goodwill and Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Total	$ 5,449	$ 872
Amortization during the year	219	111
Core deposit intangible
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	8,195	3,399
Accumulated amortization	(2,746)	(2,527)
Total	5,449	872
Capitalized	4,796	607
Amortization during the year	$ 219	$ 111

Goodwill and Intangible Asset85

Goodwill and Intangible Assets - Amortization Expense (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Total	$ 5,449	$ 872
Core deposit intangible
Finite-Lived Intangible Assets [Line Items]
2,018	644
2,019	630
2,020	629
2,021	629
2,022	629
After 2,022	2,288
Total	$ 5,449	$ 872

Deposits - Deposits by Type (De

Deposits - Deposits by Type (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Non-interest bearing demand deposits	$ 75,318	$ 45,408
Interest bearing demand deposits	147,912	48,934
Savings accounts	102,756	52,153
Money market accounts	125,749	137,234
Certificate accounts	290,769	273,948
Total deposits	742,504	557,677
Brokered deposits included above:	$ 42,840	$ 5,003

Deposits - Schedule Of Maturiti

Deposits - Schedule Of Maturities (Details) $ in Thousands	Sep. 30, 2017USD ($)
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
2,018	$ 156,647
2,019	77,079
2,020	35,540
2,021	15,678
2,022	5,825
After 2,022	0
Total	$ 290,769

Deposits - (Details Textual)

Deposits - (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deposits held from various parties	$ 823	$ 537

Federal Home Loan Bank Advanc89

Federal Home Loan Bank Advances And Other Borrowings - Summary of Federal Home Loan Bank Advances And Other Borrowings (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016	Jan. 31, 2016
Summary of Federal Home Loan Bank advances
Fixed rates	$ 90,000	$ 59,291
Less: unamortized debt issuance costs	(375)	0
Total other borrowings	30,319	11,000
TOTALS	$ 120,319	$ 70,291
Interest rate, stated percentage	0.99%	1.29%	4.25%
Senior notes:
Summary of Federal Home Loan Bank advances
Long-term debt, gross	$ 15,694	$ 11,000
Senior notes: | Variable rate due in May 2021
Summary of Federal Home Loan Bank advances
Long-term debt, gross	10,694	11,000
Senior notes: | Variable rate due in August 2022
Summary of Federal Home Loan Bank advances
Long-term debt, gross	5,000	0
Subordinated notes:
Summary of Federal Home Loan Bank advances
Long-term debt, gross	15,000	0
Subordinated notes: | 6.75% due August 2027, variable rate commencing August 2022
Summary of Federal Home Loan Bank advances
Long-term debt, gross	$ 5,000	$ 0
Interest rate, stated percentage	6.75%	6.75%
Subordinated notes: | 6.75% due August 2027, variable rate commencing August 2022
Summary of Federal Home Loan Bank advances
Long-term debt, gross	$ 10,000	$ 0
Interest rate, stated percentage	6.75%	6.75%

Federal Home Loan Bank Advanc90

Federal Home Loan Bank Advances And Other Borrowings - (Details Textual)	Aug. 17, 2017USD ($)	Sep. 30, 2016USD ($)shares	Sep. 30, 2017USD ($)shares	Sep. 30, 2016USD ($)	Aug. 10, 2017USD ($)agreements	May 29, 2017USD ($)	May 16, 2016USD ($)	Jan. 31, 2016
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Interest rate, stated percentage		1.29%	0.99%	1.29%				4.25%
Weighted average interest rate		1.07%	1.23%	1.07%
Federal home loan bank, collateral			$ 213,192,000
Letters of credit outstanding, amount		$ 10,560,000	30,233,000	$ 10,560,000
Banks available and unused portion of borrowing agreement		90,579,000	92,959,000	90,579,000
Maximum month-end amounts outstanding			90,000,000	67,474,000
Available and unused lines of credit		18,000	18,000	18,000
Number of debt agreements | agreements					2
Debt issuance costs					$ 380,000
Unamortized debt issuance costs		$ 0	$ 375,000	$ 0
Term Loan
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Debt amount							$ 11,000,000
Senior notes:
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Weighted average interest rate		3.44%	4.01%	3.44%
Stock Repurchase Program
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Line of credit facility, maximum borrowing capacity			$ 3,000,000
Available and unused lines of credit			$ 3,000,000
Stock repurchase program, authorized amount (in shares) | shares			525,200
Stock repurchase program, authorized amount, percentage			10.00%
Stock repurchased during period, shares (in shares) | shares		1,428
Revolving Credit Facility
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Line of credit facility, maximum borrowing capacity						$ 3,000,000
Term Loan
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Line of credit facility, maximum borrowing capacity	$ 5,000,000
Debt instrument,term	10 years
London Interbank Offered Rate (LIBOR) | Senior notes:
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Debt instrument, basis spread on variable rate			2.70%
Minimum | Senior notes:
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Interest rate, stated percentage		3.34%	3.44%	3.34%
Maximum | Senior notes:
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Interest rate, stated percentage		3.44%	4.01%	3.44%
6.75% due August 2027, variable rate commencing August 2022 | Subordinated notes:
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Interest rate, stated percentage		6.75%	6.75%	6.75%
Debt amount					5,000,000
6.75% due August 2027, variable rate commencing August 2022 | London Interbank Offered Rate (LIBOR) | Subordinated notes:
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Debt instrument, basis spread on variable rate			4.90%
6.75% due August 2027, variable rate commencing August 2022 | Subordinated notes:
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Interest rate, stated percentage		6.75%	6.75%	6.75%
Debt amount					$ 10,000,000
6.75% due August 2027, variable rate commencing August 2022 | London Interbank Offered Rate (LIBOR) | Subordinated notes:
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Debt instrument, basis spread on variable rate			4.90%

Federal Home Loan Bank Advanc91

Federal Home Loan Bank Advances And Other Borrowings - Long-term Debt Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Debt Disclosure [Abstract]
2,018	$ 91,680
2,019	1,680
2,020	1,680
2,021	1,680
2,022	4,181
Thereafter	19,418
Long-term Debt	$ 120,319	$ 70,291

Capital Matters - Tier 1 and Ri

Capital Matters - Tier 1 and Risk-based Capital Ratios (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk weighted assets), Actual, Amount	$ 88,511	$ 72,345
Total capital (to risk weighted assets), Actual, Ratio	13.20%	14.10%
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	$ 53,504	$ 41,189
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio	8.00%	8.00%
Total capital (to risk weighted assets), To Be Well Capitalized, Amount	$ 66,880	$ 51,487
Total capital (to risk weighted assets), To Be Well Capitalized, Ratio	10.00%	10.00%
Tier 1 capital (to risk weighted assets), Actual, Amount	$ 82,569	$ 66,278
Tier 1 capital (to risk weighted assets), Actual, Ratio	12.40%	12.90%
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	$ 40,128	$ 30,892
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio	6.00%	6.00%
Tier 1 capital (to risk weighted assets), To Be Well Capitalized, Amount	$ 53,504	$ 41,189
Tier 1 capital (to risk weighted assets), To Be Well Capitalized, Ratio	8.00%	8.00%
Common equity tier 1 (to risk weighted assets), Actual, Amount	$ 82,569	$ 66,278
Common equity tier 1 (to risk weighted assets), Actual, Ratio	12.40%	12.90%
Common equity tier 1 (to risk weighted assets), For Capital Adequacy Purposes, Amount	$ 30,096	$ 23,169
Common equity tier 1 (to risk weighted assets), For Capital Adequacy Purposes, Ratio	4.50%	4.50%
Common equity tier 1 (to risk weighted assets), To Be Well Capitalized, Amount	$ 43,472	$ 33,466
Common equity tier 1 (to risk weighted assets), To Be Well Capitalized, Ratio	6.50%	6.50%
Tier 1 leverage ratio (to adjusted total assets), Actual, Amount	$ 82,569	$ 66,278
Tier 1 leverage ratio (to adjusted total assets), Actual, Ratio	9.20%	9.30%
Tier 1 leverage ratio (to adjusted total assets), For Capital Adequacy Purposes, Amount	$ 35,776	$ 28,428
Tier 1 leverage ratio (to adjusted total assets), For Capital Adequacy Purposes, Ratio	4.00%	4.00%
Tier 1 leverage ratio (to adjusted total assets), To Be Well Capitalized, Amount	$ 44,720	$ 35,535
Tier 1 leverage ratio (to adjusted total assets), To Be Well Capitalized, Ratio	5.00%	5.00%
Citizens Community Bancorp, Inc.
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk weighted assets), Actual, Amount	$ 79,889	$ 64,811
Total capital (to risk weighted assets), Actual, Ratio	12.00%	12.60%
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	$ 53,504	$ 41,189
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio	8.00%	8.00%
Total capital (to risk weighted assets), To Be Well Capitalized, Amount	$ 66,880	$ 51,487
Total capital (to risk weighted assets), To Be Well Capitalized, Ratio	10.00%	10.00%
Tier 1 capital (to risk weighted assets), Actual, Amount	$ 58,947	$ 58,743
Tier 1 capital (to risk weighted assets), Actual, Ratio	8.80%	11.40%
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	$ 40,128	$ 30,892
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio	6.00%	6.00%
Tier 1 capital (to risk weighted assets), To Be Well Capitalized, Amount	$ 53,504	$ 41,189
Tier 1 capital (to risk weighted assets), To Be Well Capitalized, Ratio	8.00%	8.00%
Common equity tier 1 (to risk weighted assets), Actual, Amount	$ 58,947	$ 58,743
Common equity tier 1 (to risk weighted assets), Actual, Ratio	8.80%	11.40%
Common equity tier 1 (to risk weighted assets), For Capital Adequacy Purposes, Amount	$ 30,096	$ 23,169
Common equity tier 1 (to risk weighted assets), For Capital Adequacy Purposes, Ratio	4.50%	4.50%
Common equity tier 1 (to risk weighted assets), To Be Well Capitalized, Amount	$ 43,472	$ 33,466
Common equity tier 1 (to risk weighted assets), To Be Well Capitalized, Ratio	6.50%	6.50%
Tier 1 leverage ratio (to adjusted total assets), Actual, Amount	$ 58,947	$ 58,743
Tier 1 leverage ratio (to adjusted total assets), Actual, Ratio	6.60%	8.30%
Tier 1 leverage ratio (to adjusted total assets), For Capital Adequacy Purposes, Amount	$ 35,776	$ 28,428
Tier 1 leverage ratio (to adjusted total assets), For Capital Adequacy Purposes, Ratio	4.00%	4.00%
Tier 1 leverage ratio (to adjusted total assets), To Be Well Capitalized, Amount	$ 44,720	$ 35,535
Tier 1 leverage ratio (to adjusted total assets), To Be Well Capitalized, Ratio	5.00%	5.00%

Commitments and Contingencies93

Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Commitments to extend credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract or Notional Amount	$ 78,150	$ 28,341
Standby letter of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract or Notional Amount	$ 1,644	$ 135

Commitments and Contingencies94

Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Commitments and Contingencies (Textual) [Abstract]
Rent expense under operating leases	$ 1,310	$ 1,341

Commitments and Contingencies95

Commitments and Contingencies (Details 1) $ in Thousands	Sep. 30, 2017USD ($)
Commitments and Contingencies Disclosure [Abstract]
2,018	$ 895
2,019	791
2,020	752
2,021	677
2,022	671
After 2,022	2,209
Total	$ 5,995

Retirement Plans - (Details Tex

Retirement Plans - (Details Textual) $ in Thousands	12 Months Ended
	Sep. 30, 2017USD ($)payment	Sep. 30, 2016USD ($)	Sep. 30, 2015USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Employer matching contributions	$ 278	$ 194
Number of payments to be made to settle defined benefit obligations | payment	2
Portion of each payment, percentage	50.00%
Pension obligation	$ 0	1,046	$ 1,062
Defined Benefit Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actuarial gain	0	41
Pension obligation	$ 0	$ 1,046	$ 1,120

Retirement Plans - SERP and Dir

Retirement Plans - SERP and Directors’ Retirement plans’ Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Beginning of year	$ 1,046	$ 1,062
Service cost	0	0
Interest cost	0	44
Benefits paid	(1,046)	(78)
End of year	0	1,046
Defined Benefit Plan
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Beginning of year	1,046	1,120
Service cost	0	0
Interest cost	0	44
Amortization of prior service costs	0	1
Net plan termination credit	0	(41)
Net periodic benefit cost	0	4
Benefits paid	(1,046)	(78)
Curtailment and settlement	0	0
End of year	$ 0	$ 1,046

Retirement Plans - SERP and D98

Retirement Plans - SERP and Directors’ Retirement plans, Change in Status (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Beginning of year	$ 1,046	$ 1,062
Service cost	0	0
Interest cost	0	44
Curtailment and settlement	0	0
Actuarial loss (gain)	0	18
Benefits paid	(1,046)	(78)
End of year	0	1,046
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Plan assets at fair value, beginning of year	0	0
Actual return on plan assets	0	0
Company contributions	0	78
Benefits paid	0	(78)
Plan assets at fair value, end of year	$ 0	$ 0

Retirement Plans - Weighted Ave

Retirement Plans - Weighted Average Assumption(Details)	12 Months Ended
	Sep. 30, 2016
Pension Cost
Regulatory Liabilities [Line Items]
Net pension cost actuarial assumption, Discount rate	4.25%

Retirement Plans - Amounts Reco

Retirement Plans - Amounts Recognized in Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Asset Retirement Obligation Disclosure [Abstract]
Pension obligation	$ 0	$ 1,046	$ 1,062
Prior service cost	0	0
Net loss (gain)	0	0
Total accumulated other comprehensive income, before tax	$ 0	$ 0

Stock-Based Compensation (Detai

Stock-Based Compensation (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Feb. 28, 2005
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (in shares)	23,000	55,000
Expiry period of unexercised nonqualified incentive stock options	15 years
Expiry period of unexercised incentive stock options	10 years
2004 Recognition and Retention Plan and 2008 Equity incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)			113,910
2004 Stock Option and Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)			284,778
Options granted (in shares)	284,778
2008 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)	597,605
Options granted (in shares)	173,000
Prospective issuance of shares of the Company's common stock under the 2008 Equity Incentive Plan (in shares)	426,860
Aggregate stock which may be granted for restricted stock and units under the 2008 Equity Incentive Plan (in shares)	170,745
Restricted shares | 2004 Recognition and Retention Plan and 2008 Equity incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)	113,910
Compensation expense related to awards	$ 83	$ 46
Restricted shares | 2008 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)	69,660
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards granted	5 years
Employee Stock Option | 2004 Stock Option and Incentive Plan and 2008 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense related to awards	$ 31	$ 33
Minimum | Restricted shares | 2008 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards granted	2 years
Maximum | Restricted shares | 2008 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards granted	5 years

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted Common Stock Awards (Details) - $ / shares	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted shares outstanding, beginning of period (in shares)	23,159	46,857
Granted (in shares)	25,569	11,591
Vested (in shares)	(6,350)	(13,127)
Forfeited (in shares)	0	(22,162)
Restricted shares outstanding, end of period (in shares)	42,378	23,159
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Restricted shares, weighted average, beginning of period (in usd per share)	$ 9.59	$ 7.59
Restricted shares granted, weighted average (in usd per share)	13.53	10.98
Restricted shares vested, weighted average (in usd per share)	8.88	7.17
Restricted shares forfeited, weighted average (in usd per share)	0	7.54
Restricted shares, weighted average, end of period (in usd per share)	$ 12.07	$ 9.59

Stock-Based Compensation - Comm

Stock-Based Compensation - Common Stock Awards (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning or year, (in shares)	140,706	171,737
Options granted (in shares)	23,000	55,000
Exercised (in shares)	(14,100)	(43,515)
Forfeited or expired (in shares)	(3,000)	(42,516)
Outstanding at end of year, (in shares)	146,606	140,706
Exercisable at end of year, (in shares)	57,712	49,520
Fully vested and expected to vest, (in shares)	146,606	140,706
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted Average Exercise Price, Outstanding at beginning of year (usd per share)	$ 8.67	$ 7.46
Weighted Average Exercise Price, Granted (usd per share)	13.75	10
Weighted Average Exercise Price, Exercised (usd per share)	8.27
Weighted Average Exercise Price, Forfeited or expired (usd per share)	11
Weighted Average Exercise Price, Outstanding at ending of year (usd per share)	9.45	8.67
Weighted Average Exercise Price, Exercisable at end of year (usd per share)	7.70	7.27
Weighted Average Exercise Price, Fully vested and expected to vest (usd per share)	$ 9.45	$ 8.67
Weighted Average Remaining Contractual Term, Outstanding at end of year	6 years 8 months 5 days	7 years 2 months 19 days
Weighted Average Remaining Contractual Term, Exercisable at end of year	3 years 10 months 21 days	4 years 1 month 2 days
Options, exercisable, intrinsic value	$ 361	$ 194
Weighted Average Remaining Contractual Term, Fully vested and expected to vest	6 years 8 months 5 days	7 years 2 months 19 days
Options, vested and expected to vest, exercisable, aggregate intrinsic value	$ 659	$ 354

Stock-Based Compensation - 200

Stock-Based Compensation - 2004 Stock Option and Incentive Plan and 2008 Equity Incentive Plan, Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Intrinsic value of options exercised	$ 69	$ 131
Cash received from options exercised	114	290
Tax benefit realized from options exercised	$ 0	$ 0

Stock-Based Compensation - 105

Stock-Based Compensation - 2004 Stock Option and Incentive Plan and 2008 Equity Incentive Plan, Assumptions(Details)	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Dividend yield	1.16%	1.02%
Risk-free interest rate	2.20%	1.70%
Weighted average expected life (years)	10 years	10 years
Expected volatility	2.40%	5.00%

Income Taxes - Income Tax Expen

Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Current tax provision
Federal	$ 572	$ 683
State	117	131
Current Income Tax Expense (Benefit), Total	689	814
Deferred tax provision (benefit)
Federal	535	406
State	99	66
Deferred Income Tax Expense (Benefit), Total	634	472
Total	$ 1,323	$ 1,286

Income Taxes - Effective Income

Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
The provision for income taxes differs from the amount of income tax determined by applying statutory federal income tax rates to pretax income
Tax expense at statutory rate	$ 1,299	$ 1,312
State income taxes net of exception	216	197
Tax exempt interest	(229)	(166)
Other	37	(57)
Total	$ 1,323	$ 1,286
Tax expense at statutory rate in percent	34.00%	34.00%
State income taxes net of exception in percent	5.64%	5.10%
Tax exempt interest in percent	(5.98%)	(4.26%)
Other in percent	0.96%	(1.51%)
Total in percent	34.62%	33.33%

Income Taxes - Net Deferred Tax

Income Taxes - Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Deferred tax assets:
Allowance for loan losses	$ 2,347	$ 2,377
Deferred loan costs/fees	51	77
Director/officer compensation plans	90	299
Net unrealized loss on securities available for sale	178	0
Economic performance accruals	0	131
Other real estate	304	0
Deferred revenue	143	0
Loan Discounts	1,450	0
Other	100	177
Deferred tax assets	4,663	3,061
Deferred tax liabilities:
Office properties and equipment	(1,039)	(291)
Federal Home Loan Bank stock	(128)	0
Core Deposit Intangible	(1,628)	0
Other real estate	(114)	0
Net unrealized gain on securities available for sale	0	(409)
Prepaid expenses	(147)	0
Mortgage servicing rights	(685)	0
Other acquired intangibles	(264)	0
Other	0	(98)
Deferred tax liabilities	(4,005)	(798)
Net deferred tax assets	$ 658	$ 2,263

Income Taxes - (Details Textual

Income Taxes - (Details Textual) - USD ($)	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Income Taxes (Textual) [Abstract]
Valuation allowance	$ 0	$ 0
Percentage of likelihood	50.00%
Income tax examination, penalties and interest expense	$ 0	24,000
Accrual for the payments of interest and penalties related to income tax issues	$ 11,000	$ 24,000

Earnings Per Share - Reconcili

Earnings Per Share - Reconciliation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Basic
Net income attributable to common shareholders	$ 2,499	$ 2,573
Weighted average common shares outstanding (in shares)	5,361,843	5,241,458
Basic earnings per share (in dollars per share)	$ 0.47	$ 0.49
Diluted
Net income attributable to common shareholders	$ 2,499	$ 2,573
Weighted average common shares outstanding (in shares)	5,361,843	5,241,458
Add: Dilutive stock options outstanding (in shares)	16,517	15,846
Average shares and dilutive potential common shares (in shares)	5,378,360	5,257,304
Diluted earnings per share (in dollars per share)	$ 0.46	$ 0.49
Additional common stock option shares that have not been included due to their antidilutive effect (in shares)	22,000	38,000

Other Comprehensive Income - Co

Other Comprehensive Income - Component of Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Unrealized (losses) gains on securities:
Net unrealized (losses) gains arising during period Before- Tax Amount	$ (1,580)	$ 1,375
Net unrealized (losses) gains arising during period Tax Expense	632	(550)
Net unrealized (losses) gains arising during the period, Net-of-Tax Amount	(948)	825
Less: reclassification adjustment for gains included in net income Before- Tax Amount	111	63
Less: reclassification adjustment for gains included in net income Tax Expense	(44)	(25)
Less: reclassification adjustment for gains included in net income Net of Tax Amount	67	38
Defined benefit plans:
Amortization of unrecognized prior service costs and net losses, Before-Tax Amount	0	(58)
Amortization of unrecognized prior service costs and net losses, Tax Expense	0	23
Amortization of unrecognized prior service costs and net losses, Net-of-Tax	0	(35)
Other comprehensive (loss) income Before- Tax Amount	(1,469)	1,380
Other comprehensive (loss) income Tax Expense	588	(552)
Total other comprehensive (loss) income, net of tax	$ (881)	$ 828

Other Comprehensive Income - Ch

Other Comprehensive Income - Changes in the Accumulated Balances (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Changes in the accumulated balances for each component of other comprehensive income
Beginning Balance	$ 614	$ (214)
Current period other comprehensive income (loss), net of tax	(881)	828
Ending Balance	(267)	614
Unrealized Gains (Losses) on Securities
Changes in the accumulated balances for each component of other comprehensive income
Beginning Balance	614	(249)
Current period other comprehensive income (loss), net of tax	(881)	863
Ending Balance	(267)	614
Defined Benefit Plans
Changes in the accumulated balances for each component of other comprehensive income
Beginning Balance	0	35
Current period other comprehensive income (loss), net of tax	0	(35)
Ending Balance	$ 0	$ 0

Other Comprehensive Income - Re

Other Comprehensive Income - Reclassifications Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Sale of securities	$ 111	$ 63
Tax effect	(1,323)	(1,286)
Net income attributable to common stockholders	2,499	2,573
Accumulated Net Investment Gain (Loss) | Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Sale of securities	111	63
Tax effect	(44)	(25)
Net income attributable to common stockholders	$ 67	$ 38

Condensed Financial Informat114

Condensed Financial Information - Parent Company Only - Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
ASSETS
Cash and cash equivalents	$ 41,677	$ 10,046	$ 23,872
Other assets	16,092	11,196
TOTAL ASSETS	940,664	695,865
LIABILITIES AND STOCKHOLDERS’ EQUITY
Other borrowings	30,319	11,000
Other liabilities	4,358	3,353
Total liabilities	867,181	631,321
Total stockholders’ equity	73,483	64,544	61,453
Total liabilities and stockholders’ equity	940,664	695,865
Citizens Community Bancorp, Inc.
ASSETS
Cash and cash equivalents	5,716	3,514	$ 676
Investments	1,242	0
Other assets	5	0
Investment in subsidiary	97,105	72,079
TOTAL ASSETS	104,068	75,593
LIABILITIES AND STOCKHOLDERS’ EQUITY
Other borrowings	30,319	11,000
Other liabilities	266	49
Total liabilities	30,585	11,049
Total stockholders’ equity	73,483	64,544
Total liabilities and stockholders’ equity	$ 104,068	$ 75,593

Condensed Financial Informat115

Condensed Financial Information - Parent Company Only - Statement of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Condensed Financial Statements, Captions [Line Items]
Total interest expense	$ 5,610	$ 5,007
Expenses—other	2,663	1,765
Income before provision for income tax	3,822	3,859
Benefit for income taxes	(1,323)	(1,286)
Net income attributable to common stockholders	2,499	2,573
Citizens Community Bancorp, Inc.
Condensed Financial Statements, Captions [Line Items]
Dividend income from bank subsidiary	12,500	3,419
Interest Income	(1)	0
Total interest expense	594	143
Expenses—other	1,376	306
Total expenses	1,969	449
Income before provision for income tax	10,531	2,970
Benefit for income taxes	602	176
Income before equity in undistributed net income (loss) of subsidiary	11,133	3,146
Equity in undistributed net gain of subsidiary	(8,634)	(573)
Net income attributable to common stockholders	$ 2,499	$ 2,573

Condensed Financial Informat116

Condensed Financial Information - Parent Company Only - Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income attributable to common shareholders		$ 2,499	$ 2,573
Stock based compensation expense		31	33
Increase in other liabilities		(2,902)	(402)
Net cash provided by operating activities		3,921	5,698
Cash flows from investing activities:
Net cash provided by investing activities		11,785	49,272
Cash flows from financing activities:
Equity costs to fund business combination		(259)	0
Decrease in other borrowings		(306)	0
Repurchase shares of common stock	$ 0	(16)
Surrendered vested shares of common stock		(22)	(50)
Exercise of common stock options		114	290
Cash dividends paid		(842)	(629)
Net cash provided by (used in) financing activities		15,925	(68,796)
Net (decrease) increase in cash and cash equivalents		31,631	(13,826)
Cash and cash equivalents at beginning of period		10,046	23,872
Cash and cash equivalents at end of period	10,046	41,677	10,046
Citizens Community Bancorp, Inc.
Cash flows from operating activities:
Net income attributable to common shareholders		2,499	2,573
Stock based compensation expense		31	33
Adjustments to reconcile net income to net cash provided by operating activities - Equity in undistributed income of subsidiary		(3,866)	(2,846)
Increase in other liabilities		216	49
Net cash provided by operating activities		(1,120)	(191)
Cash flows from investing activities:
Proceeds from maturities of interest bearing deposits		249	0
Cash consideration paid in business combination		(27,716)	0
Net cash provided by investing activities		(27,467)	0
Cash flows from financing activities:
Increase in other borrowings to fund business combination		19,620	0
Equity costs to fund business combination		(259)	0
Decrease in other borrowings		(306)	0
Repurchase shares of common stock		(16)	0
Surrendered vested shares of common stock		(22)	(50)
Exercise of common stock options		114	289
Cash dividend from Bank to Holding Company		12,500	3,419
Cash dividends paid		(842)	(629)
Net cash provided by (used in) financing activities		30,789	3,029
Net (decrease) increase in cash and cash equivalents		2,202	2,838
Cash and cash equivalents at beginning of period		3,514	676
Cash and cash equivalents at end of period	$ 3,514	$ 5,716	$ 3,514