FFBW 10-K 29 Mar 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Mar. 23, 2018	Oct. 11, 2017
Document And Entity Information Abstract [Abstract]
Entity Registrant Name	FFBW, Inc.
Entity Central Index Key	1,709,017
Trading Symbol	ffbw
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding		6,612,500
Entity Public Float			$ 29.9
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Amendment Flag	false
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Assets
Cash and due from banks	$ 3,285	$ 6,911
Fed funds sold	8,528
Cash and cash equivalents	11,813	6,911
Available for sale securities, stated at fair value	58,012	48,613
Loans held for sale	109	592
Loans, net of allowance for loan and lease losses of $1,800 and $1,478, respectively	171,355	166,974
Premises and equipment, net	5,290	7,610
Foreclosed assets	619	667
FHLB stock, at cost	514	1,347
Accrued interest receivable	782	760
Cash value of life insurance	6,558	6,352
Other assets	1,429	1,729
TOTAL ASSETS	256,481	241,555
Liabilities and Equity
Deposits	182,913	184,639
Advance payments by borrowers for taxes and insurance	36	33
FHLB advances	12,750	21,277
Accrued interest payable	37	29
Other liabilities	1,256	1,579
Total liabilities	196,992	207,557
Preferred stock ($0.01 par value, 1,000,000 authorized, no shares issued or outstanding as of December 31, 2017 and December 31, 2016, respectively)
Common stock ($0.01 par value, 19,000,000 authorized, 6,612,500 issued and outstanding as of December 31, 2017, no shares issued or outstanding as of December 31, 2016)	66
Additional paid in capital	28,296
Unallocated common stock of Employee Stock Ownership Plan ("ESOP") (256,263 shares at December 31, 2017)	(2,563)
Retained earnings	33,937	34,123
Accumulated other comprehensive loss, net of income taxes	(247)	(125)
Total equity	59,489	33,998
TOTAL LIABILITIES AND EQUITY	$ 256,481	$ 241,555

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Allowance for loan and lease losses	$ 1,800	$ 1,478
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized shares	1,000,000	1,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares	19,000,000	19,000,000
Common stock, issued shares	6,612,500	0
Common stock, outstanding shares	6,612,500	0
Unallocated common stock of ESOP, Shares	256,263

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017		Dec. 31, 2016
Interest and dividend income:
Loans, including fees	$ 7,817		$ 7,741
Securities
Taxable	943		847
Tax-exempt	142		246
Other	93		31
Total interest and dividend income	8,995		8,865
Interest expense:
Interest-bearing deposits	1,314		1,365
Borrowed funds	240		268
Total interest expense	1,554		1,633
Net interest income	7,441		7,232
Provision for loan losses	419		844
Net interest income after provision for loan losses	7,022		6,388
Noninterest income:
Service charges and other fees	279		247
Net gain on sale of loans	266		288
Net gain on sale of securities	20		129
Increase in cash surrender value of insurance	196		198
Other noninterest income	130		4
Total noninterest income	891		866
Noninterest expense:
Salaries and employee benefits	3,960		4,051
Occupancy and equipment	1,109		1,012
Data processing	605		724
Foreclosed assets, net	27		40
Professional fees	506		441
Other	1,628		971
Total noninterest expense	7,835		7,239
Income before income taxes	78		15
Provision (credit) for income taxes	264		(156)
Net income (loss)	$ (186)	[1]	$ 171	[2]
Basic earnings (loss) per share (in dollars per share)	$ (0.03)	[1]		[2]
Diluted earnings (loss) per share (in dollars per share)	$ (0.03)	[1]		[2]
[1]	Earnings (loss) per share for the year ended December 31, 2017 includes income attributed to the period prior to the initial public offering for the common shares issued.
[2]	Earnings (loss) per share for the year ended December 31, 2016 is not applicable because the public offering was completed in October 2017.

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017		Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (186)	[1]	$ 171	[2]
Other comprehensive loss:
Unrealized holding losses arising during the period	(168)		(394)
Reclassification adjustment for gains realized in net income	(20)		(129)
Other comprehensive loss before tax effect	(188)		(523)
Tax effect of other comprehensive loss items	66		168
Other comprehensive loss, net of tax	(122)		(355)
Comprehensive loss	$ (308)		$ (184)
[1]	Earnings (loss) per share for the year ended December 31, 2017 includes income attributed to the period prior to the initial public offering for the common shares issued.
[2]	Earnings (loss) per share for the year ended December 31, 2016 is not applicable because the public offering was completed in October 2017.

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Unallocated Common Stock of ESOP	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Balance at Dec. 31, 2015				$ 33,952	$ 230	$ 34,182
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				171		171	[1]
Other comprehensive income					(355)	(355)
Balance at Dec. 31, 2016				34,123	(125)	33,998
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				(186)		(186)	[2]
Other comprehensive income					(122)	(122)
Issuance of common stock, net of issuance costs	$ 66	$ 28,293				28,359
Issuance of common stock, net of issuance costs (in shares)	6,587,500
Issuance of common stock to FFBW Community Foundation, Inc.	25,000
Stock purchased by the ESOP (259,210 shares)			$ (2,592)			(2,592)
ESOP shares committed to be released (2,947 shares)		3	29			32
Balance at Dec. 31, 2017	$ 66	$ 28,296	$ (2,563)	$ 33,937	$ (247)	$ 59,489
Balance (in shares) at Dec. 31, 2017	6,612,500
[1]	Earnings (loss) per share for the year ended December 31, 2016 is not applicable because the public offering was completed in October 2017.
[2]	Earnings (loss) per share for the year ended December 31, 2017 includes income attributed to the period prior to the initial public offering for the common shares issued.

CONSOLIDATED STATEMENTS OF CHA7

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parentheticals)	12 Months Ended
	Dec. 31, 2017shares
Statement of Stockholders' Equity [Abstract]
Stock purchased by the ESOP, Shares	259,210
Number of shares committed-to-be-released under Employee Stock Ownership Plan (ESOP)	2,947

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (In thousands) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017		Dec. 31, 2016
Cash flows from operating activities:
Net income (loss)	$ (186)	[1]	$ 171	[2]
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Provision for loan losses	419		844
Depreciation	460		473
Gain on sale of premises and equipment	64
Accretion of loan portfolio discount	(405)		(438)
Net amortization on securities available for sale	525		543
(Gain) loss on sales and impairments of foreclosed assets	(12)		4
Gain on sale of securities	(20)		(129)
Increase in cash surrender value of life insurance	(196)		(198)
Accretion of discount on FHLB advances	(27)		(27)
ESOP compensation	32
Changes in operating assets and liabilities:
Accrued interest receivable	(22)		46
Loans held for sale	483		44
Other assets	366		20
Accrued interest payable	8		1
Other liabilities	(323)		645
Net cash provided by operating activities	1,166		1,999
Cash flows from investing activities:
Proceeds from sales of available for sale securities	6,856		9,485
Maturities, calls, paydowns on available for sale securities	8,081		11,789
Purchases of available for sale securities	(25,029)		(21,903)
Net (increase) decrease in loans	(5,793)		4,011
Purchases of premises and equipment	(357)		(99)
Proceeds from redemption of FHLB stock	833
Proceeds from sale of equipment	2,153		25
Purchase of life insurance	(10)
Proceeds from sale of foreclosed assets	1,458		86
Net cash (used) provided by investing activities	(11,808)		3,394
Cash flows from financing activities:
Net increase (decrease) in deposits	(1,726)		433
Net increase (decrease) in escrow	3		(8)
Net decrease in FHLB open line of credit	(2,500)		(1,500)
Repayments of FHLB advances	(6,000)		(5,000)
Proceeds from FHLB advances			4,500
Net proceeds from issuance of common stock	25,767
Net cash provided (used) in financing activities	15,544		(1,575)
Net increase in cash and cash equivalents	4,902		3,818
Cash and cash equivalents at beginning	6,911		3,093
Cash and cash equivalents at end	11,813		6,911
Supplemental Cash Flow Disclosures:
Cash paid for interest	1,546		1,632
Cash paid for income taxes			20
Loans transferred to foreclosed assets	1,118		$ 757
Financed sales of foreclosed assets	$ 280
[1]	Earnings (loss) per share for the year ended December 31, 2017 includes income attributed to the period prior to the initial public offering for the common shares issued.
[2]	Earnings (loss) per share for the year ended December 31, 2016 is not applicable because the public offering was completed in October 2017.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	NOTE 1 — Summary of Significant Accounting Policies Organization On October 10, 2017, First Federal Bank of Wisconsin (“the Bank”) converted to a stock savings bank and is now organized in the mutual holding company structure. The Bank issued all of its outstanding stock to a new holding company, FFBW, Inc., (“the Company”) which sold 2,950,625 shares of common stock to the public at $10.00 per share, and contributed an additional 25,000 shares to FFBW Community Foundation, representing 45% of its outstanding shares of common stock. This amount included shares purchased by the Bank’s employee stock ownership plan (“ESOP”), which purchased 3.92% of the common stock of the new holding company outstanding upon the completion of the reorganization and stock issuance. FFBW, Inc. is organized as a corporation under the laws of the United States. FFBW, MHC has been organized as a mutual holding company under the laws of the United States and owns 3,636,875 shares, or 55% of the outstanding common stock of FFBW, Inc. The cost of the reorganization and the issuing of the common stock were deferred and deducted from the sales proceeds of the offering. As of December 31, 2017, reorganization costs of  $1,394 had been recognized. At December 31, 2017, the significant assets of the Holding Company were the capital stock of the Bank, and a loan to the First Federal Bank of Wisconsin Employee Stock Ownership Plan (“ESOP”). The liabilities of the Holding Company were insignificant. The Company is subject to the financial reporting requirements of the Securities Exchange Act of 1934, as amended. The Company is subject to regulation and examination by the Board of Governors of the Federal Reserve System (“the Federal Reserve Board”). First Federal Bank of Wisconsin is a community bank headquartered in Waukesha, Wisconsin that provides financial services to individuals and businesses from our offices in Waukesha, Brookfield, and the Bay View neighborhood. Jumpstart Our Business Startups Act The Jumpstart Our Business Startups Act (the JOBS Act), which was signed into law on April 5, 2012, has made numerous changes to the federal securities laws to facilitate access to capital markets. Under the JOBS Act, a company with total annual gross revenues of less than $1.0 billion during its most recently completed fiscal year qualifies as an “emerging growth company.” The Company qualifies as an “emerging growth company” and believes that it will continue to qualify as an “emerging growth company” until five years from the completion of the stock offering. As an “emerging growth company,” the Company has elected to use the extended transition period to delay adoption of new or revised accounting pronouncements applicable to public companies until such pronouncements are made applicable to private companies. Accordingly, the financial statements may not be comparable to the financial statements of companies that comply with such new or revised accounting standards. Use of Estimates In preparing financial statements in conformity with accounting principles generally accepted in the United States of America, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, the fair values of securities, fair value of financial instruments, the valuation of other real estate owned and the valuation of deferred income tax assets. Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash and balances due from banks, non-maturity deposits in the Federal Home Loan Bank of Chicago (FHLB), and fed funds sold. Available for Sale Securities Securities classified as available for sale are those securities that the Company intends to hold for an indefinite period of time, but not necessarily to maturity. Any decision to sell a security classified as available for sale would be based on various factors, including significant movements in interest rates, changes in the maturity mix of the Company’s assets and liabilities, liquidity needs, regulatory capital requirements, and other similar factors. Securities classified as available for sale are carried at fair value. Unrealized gains or losses are reported as increases or decreases in other comprehensive income, net of the related deferred tax effect. Realized gains or losses, determined on the basis of the cost of specific securities sold, are included in earnings. Gains and losses on the sale of securities are recorded on the trade date and determined using the specific-identification method. Declines in fair value of securities that are deemed to be other than temporary, if applicable, are reflected in earnings as realized losses. In estimating other-than-temporary impairment losses, management considers the length of time and the extent to which fair value has been less than cost, the financial condition and near-term prospects of the issuer, and the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient enough to allow for any anticipated recovery in fair value. Loans Acquired in a Transfer The Company acquires loans (including debt securities) individually and in groups or portfolios. These loans are initially measured at fair value with no allowance for loan losses. The Company’s allowance for loan losses on all acquired loans reflect only those losses incurred subsequent to acquisition. Certain acquired loans may have experienced deterioration of credit quality between origination and the Company’s acquisition of the loans. At acquisition, the Company reviews each loan to determine whether there is evidence of deterioration of credit quality since origination and if it is probable that the Company will be unable to collect all amounts due according to the loan’s contractual terms. If both conditions exist, the Company determines whether each such loan is to be accounted for individually or whether such loans will be assembled into pools of loans based on common risk characteristics (for example, credit score, loan type, and date of origination). The Company considers expected prepayments and estimates the amount and timing of undiscounted principal, interest, and other cash flows expected at acquisition for each loan and aggregated pool of loans. The excess of the loan’s or pool’s scheduled contractual principal and interest payments over all cash flows expected at acquisition is calculated as the nonaccretable difference. The excess of cash flows expected to be collected over the fair value of each loan or pool (accretable yield) is accreted into interest income over the remaining life of the loan or pool. At each reporting date, the Company continues to estimate cash flows expected to be collected for each loan or pool. If expected cash flows have decreased from the acquisition date estimate, the Company recognizes an allowance for loan losses. If expected cash flows have increased from the acquisition date estimate, the Company increases the amount of accretable yield to be recognized as interest income over the remaining life of the loan or pool. Loans Held for Sale Loans originated and intended for sale in the secondary market are carried at the lower of cost or estimated fair value in the aggregate. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. Mortgage loans held for sale are sold with the mortgage servicing rights released by the Company. Gains or losses on sales of mortgage loans are recognized based on the difference between the selling price and the carrying value of the related mortgage loan sold. Loans Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff generally are reported at their outstanding unpaid principal balances adjusted for deferred loan fees and costs, charge-offs, and an allowance for loan losses. Interest on loans is accrued and credited to income based on the unpaid principal balance. Loan-origination fees, net of certain direct origination costs, are deferred and recognized as an adjustment of the related loan yield using the interest method. The accrual of interest on loans is discontinued when, in the opinion of management, there is an indication that the borrower may be unable to make payments as they become due. When loans are placed on nonaccrual status or charged off, all unpaid accrued interest is reversed against interest income. The interest on these loans is subsequently accounted for on the cash-basis or cost-recovery method until qualifying for return to accrual status. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Allowance for Loan Losses The allowance for loan losses is maintained at the level considered adequate by management to provide for losses that are probable as of the balance sheet date. The allowance for loan losses is established through a provision for loan losses charged to expense as losses are estimated to have occurred. Loan losses are charged against the allowance when management believes that the collectability of the principal is unlikely. Subsequent recoveries, if any, are credited to the allowance. In determining the adequacy of the allowance balance, the Company makes evaluations of the loan portfolio and related off-balance sheet commitments, considers current economic conditions and historical loss experience, and reviews specific problem loans and other factors. When establishing the allowance for loan losses, management categorizes loans into risk categories generally based on the nature of the collateral and the basis of repayment. These risk categories and their relevant risk characteristics are as follows: Commercial development: Commercial real estate: Commercial and industrial: 1-4 family owner-occupied: 1-4 family investor-owned: Multifamily real estate: Consumer: Management regularly evaluates the allowance for loan losses using the Company’s past loan loss experience, known and inherent risks in the loan portfolio, composition of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral, current economic conditions, and other relevant factors. This evaluation is inherently subjective since it requires material estimates that may be susceptible to significant change. A loan is impaired when, based on current information, it is probable that the Company will not collect all amounts due in accordance with the contractual terms of the loan agreement. Management determines whether a loan is impaired on a case-by-case basis, taking into consideration the payment status, collateral value, length and reason of any payment delays, the borrower’s prior payment record, and any other relevant factors. Large groups of smaller-balance homogeneous loans, such as residential mortgage and consumer loans, are collectively evaluated in the allowance for loan losses analysis and are not subject to impairment analysis unless such loans have been subject to a restructuring agreement. Specific allowances for impaired loans are based on discounted cash flows of expected future payments using the loan’s initial effective interest rate or the fair value of the collateral if the loan is collateral dependent. In addition, various regulatory agencies periodically review the allowance for loan losses. These agencies may require the Company to make additions to the allowance for loan losses based on their judgments of collectability based on information available to them at the time of their examination. Troubled Debt Restructurings Loans are accounted for as troubled debt restructurings when a borrower is experiencing financial difficulties that lead to a restructuring of the loan, and the Company grants a “concession” to the borrower that they would not otherwise consider. These concessions include a modification of terms such as a reduction of the stated interest rate or loan balance, a reduction of accrued interest, an extension of the maturity date at an interest rate lower than a current market rate for a new loan with similar risk, or some combination thereof to facilitate repayment. Troubled debt restructurings are considered impaired loans. Foreclosed Assets Assets acquired through, or in lieu of, loan foreclosure are held for sale and are initially recorded at fair value, less costs to sell, at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, valuations are periodically performed by management, and the assets are carried at the lower of carrying amount or fair value less costs to sell. Revenue and expenses from operations and changes in the valuation allowance are included in net expenses from foreclosed assets. Premises and Equipment Depreciable assets are stated at cost less accumulated depreciation. Provisions for depreciation are computed on straight-line and accelerated methods over the estimated useful lives of the assets. Federal Home Loan Bank Stock The Company’s investment in Federal Home Loan Bank (“FHLB”) stock is carried at cost, which approximates fair value. The Company is required to hold the stock as a member of the FHLB, and transfer of the stock is substantially restricted. The stock is evaluated for impairment on an annual basis. Income Taxes Amounts provided for income tax expense are based on income reported for financial statement purposes and do not necessarily represent amounts currently payable under tax laws. Deferred income tax assets and liabilities are computed annually for differences between the financial statement and income tax basis of assets and liabilities that will result in taxable or deductible amounts in the future based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. As changes in tax laws or rates are enacted, deferred income tax assets and liabilities are adjusted through the provision for income taxes. The differences relate principally to the allowances for loan losses, deferred compensation, depreciation, FHLB stock dividends and non-accrual interest. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized. The tax effects from an uncertain tax position can be recognized in the financial statements only if 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. Based on its evaluation, the Company has concluded that there are no significant uncertain tax positions requiring recognition in its financial statements. The Company’s policy is to recognize interest and penalties related to income tax issues as components of income tax expense. During the periods shown, the Company did not recognize any interest or penalties related to income tax expense in its 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 Company, (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 Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. Advertising Advertising costs are expensed as incurred. Other Comprehensive Loss Other comprehensive loss is shown on the statements of comprehensive income (loss). The Company’s accumulated other comprehensive income (loss) is composed of the unrealized loss on securities available for sale, net of tax and is shown on the statements of changes in equity. Reclassification adjustments out of other comprehensive loss for gains realized on sales of securities available for sale comprise the entire balance of  “net gain on sale of securities” on the statements of operations. As part of this reclassification, income tax expense of approximately $5 and $51 was recognized for the years ended December 31, 2017 and 2016 in “provision (credit) for income taxes” on the statements of operations. Off-Balance Sheet Financial Instruments In the ordinary course of business, the Company has entered into off-balance-sheet financial instruments consisting of commitments to extend credit, unfunded commitments under lines of credit, and standby letters of credit. Such financial instruments are recorded in the financial statements when they become payable. Life Insurance The Company has purchased life insurance policies on certain key executives. Life insurance is measured at the amount that could be realized under the insurance contract as of the balance sheet date, which is generally the cash surrender value of the policy. Subsequent Events Management has reviewed the Company’s operations for potential disclosure or financial statement impacts related to events occurring after December 31, 2017, but prior to the release of these financial statements. Based on the results of this review, no subsequent event disclosure or financial statement impacts to these financial statements are required as of            . Reclassifications Certain reclassifications have been made to the 2016 consolidated financial statements to conform to the 2017 classifications. Recent Accounting Pronouncements The Company recently adopted the following Accounting Standards Updates (ASU) issued by the Financial Accounting Standards Board (FASB): ASU 2017-08 “Receivables — Non-Refundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities.” The ASU requires premiums on callable debt securities to be amortized to the earliest call date. The Company adopted this accounting standard for the year ended December 31, 2017. The following Accounting Standards Updates (ASUs) have been issued by the Financial Accounting Standards Board (FASB) and may impact the Company’s financial statements in future reporting periods. ASU No. 2016-13, “Credit Losses (Topic 326).” ASU 2016-13 requires organizations to measure all expected credit losses for financial instruments held at the reporting date based on historical experience, current conditions and reasonable and supportable forecasts. The guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early adoption will be permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently assessing the impact of adopting ASU 2016-13 on its financial statements. ASU 2016-02 “Leases.” ASU 2016-02 affects any entity that enters into a lease and is intended to increase the transparency and comparability of financial statements among organizations. The ASU requires, among other changes, a lessee to recognize on its balance sheet a lease asset and a lease liability for those leases previously classified as operating leases. The lease asset would represent the right to use the underlying asset for the lease term and the lease liability would represent the discounted value of the required lease payments to the lessor. The ASU would also require entities to disclose key information about leasing arrangements. ASU 2016-02 is effective for interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted. Management is currently evaluating the impact that ASU 2016-02 will have on the Company’s consolidated financial position, results of operations and disclosures. ASU No. 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities”. The standard makes a number of changes to the recognition and measurement standards of financial instruments, including the following changes: 1) equity securities with a readily determinable fair value will have to be measured at fair value with changes in fair value recognized in net income; 2) entities that are public business entities will no longer be required to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost; and 3) entities that are public business entities will be required to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes. This standard is effective for financial statements issued for annual reporting periods, and interim periods within those annual periods, beginning after December 15, 2018. The adoption of this standard is not expected to have a material impact on our financial condition or results of operations, except that the Company will no longer disclose the method(s) and significant assumptions used to estimate the fair value of financial instruments measured at amortized cost. ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)”. The amendment supersedes and replaces nearly all existing revenue recognition guidance. Under the amended guidance, an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This guidance is effective for annual and interim periods beginning after December 15, 2018. Adoption of ASU No. 2014-09 is not expected to have a material impact on the Company’s financial statements.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Earnings Per Share	NOTE 2 — Earnings Per Share Earnings (loss) per share is based on net income (loss) divided by the weighted average number of shares outstanding during the period, including allocated and committed-to-be-released Employee Stock Ownership Plan (“ESOP”) shares. Year Ended December 31, 2017** 2016 Net income (loss) $ (186 )     * Basic potential common shares Weighted average shares outstanding 6,612,500 * Weighted average unallocated Employee Stock Ownership Plan Shares (257,245 ) * Basic weighted average shares outstanding 6,355,255 * Dilutive potential common shares — * Diluted weighted average shares outstanding 6,355,255 * Basic earnings (loss) per share $ (0.03 ) * Diluted earnings (loss) per share $ (0.03 ) * * Earnings (loss) per share for the year ended December 31, 2016 is not applicable because the public offering was completed in October 2017. ** Earnings (loss) per share for the year ended December 31, 2017 includes income attributed to the period prior to the initial public offering for the common shares issued.

Cash and Due from Banks

Cash and Due from Banks	12 Months Ended
	Dec. 31, 2017
Cash and Due from Banks [Abstract]
Cash and Due from Banks	NOTE 3 — Cash and Due from Banks Under Regulation D, savings institutions are generally required to maintain reserve balances in cash or on deposit with the Federal Reserve Bank, based upon a percentage of deposits. The Company was required to maintain reserve balances with the Federal Reserve Bank of  $0 as of both December 31, 2017 and 2016. In the normal course of business, the Company maintains cash and due from bank balances with correspondent banks. Balances in these accounts may exceed the Federal Deposit Insurance Corporation’s insured limit of  $250. Management believes these financial institutions have strong credit ratings and that the credit risk related to these deposits is minimal.

Available for Sale Securities

Available for Sale Securities	12 Months Ended
	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Available for Sale Securities	NOTE 4 — Available for Sale Securities Amortized costs and fair values of available for sale securities are summarized as follows: Amortized Gross Gross Estimated December 31, 2017 Obligations of the US government and US government $ 2,211 $ 11 $ (2 ) $ 2,220 Obligations of states and political subdivisions 13,102 104 (69 ) 13,137 Mortgage-backed securities 33,908 14 (455 ) 33,467 Certificates of deposit 4,000 6 (9 ) 3,997 Corporate debt securities 5,171 29 (9 ) 5,191 Total available for sale securities $ 58,392 $ 164 $ (544 ) $ 58,012 December 31, 2016 Obligations of the US government and US government $ 3,885 $ 36 $ (2 ) $ 3,919 Obligations of states and political subdivisions 15,606 104 (148 ) 15,562 Mortgage-backed securities 23,155 39 (302 ) 22,892 Certificates of deposit 1,000 17 (3 ) 1,014 Corporate debt securities 5,159 76 (9 ) 5,226 Total available for sale securities $ 48,805 $ 272 $ (464 ) $ 48,613 Fair values of securities are estimated based on financial models or prices paid for similar securities. It is possible interest rates could change considerably, resulting in a material change in estimated fair value. The following table presents the portion of the Company’s portfolio which has gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position: Less Than 12 Months 12 Months or More Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized December 31, 2017 Obligations of the US government and US government sponsored agencies $ 235 $ (2 ) $ — $ — $ 235 $ (2 ) Obligations of states and political subdivisions 3,180 (23 ) 2,660 (46 ) 5,840 (69 ) Mortgage-backed securities 22,685 (213 ) 9,270 (242 ) 31,955 (455 ) Certificates of deposit 2,492 (9 ) — — 2,492 (9 ) Corporate debt securities 2,683 (8 ) 250 (1 ) 2,933 (9 ) Total $ 31,275 $ (255 ) $ 12,180 $ (289 ) $ 43,455 $ (544 ) December 31, 2016 Obligations of the US government and US government sponsored agencies $ 733 $ (1 ) $ 179 $ (1 ) $ 912 $ (2 ) Obligations of states and political subdivisions 7,087 (148 ) — — 7,087 (148 ) Mortgage-backed securities 15,370 (278 ) 1,365 (24 ) 16,735 (302 ) Certificates of deposit 247 (3 ) — — 247 (3 ) Corporate debt securities 1,590 (8 ) 249 (1 ) 1,839 (9 ) Total $ 25,027 $ (438 ) $ 1,793 $ (26 ) $ 26,820 $ (464 ) The Company held 100 securities with aggregate depreciation of less than 2% from the Company’s amortized cost basis at December 31, 2017. It is the opinion of management that the unrealized losses in these securities are a result of fluctuations in prevailing interest rates and a decrease in market liquidity and not a result of an impairment in the credit quality of the investment. In addition, the Company does not have the intent to sell the securities, and it is more likely than not that it will not be required to sell the securities before the recovery of the losses. Based on this information, management believes the unrealized losses are temporary in nature. The amortized cost and fair value of available for sale securities by contractual maturity are shown below. Expected maturities will differ from contractual maturities in mortgage-backed securities since the anticipated maturities are not readily determinable. Therefore, these securities are not included in the maturity categories in the following maturity summary listed below: December 31, 2017 Amortized Fair Value Due in one year or less $ — $ — Due after one year through 5 years 9,412 9,439 Due after 5 years through 10 years 7,679 7,703 Due after 10 years 7,393 7,403 Subtotal $ 24,484 $ 24,545 Mortgage-backed securities 33,908 33,467 Total $ 58,392 $ 58,012 The following is a summary of the proceeds from sales of securities available for sale, as well as gross gains and losses: Years ended December 31, 2017 2016 Proceeds from sale of securities $ 6,856 $ 9,485 Gross gains 86 133 Gross losses (66 ) (4 ) No securities were pledged at December 31, 2017 or December 31, 2016.

Loans

Loans	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
Loans	NOTE 5 — Loans Major classifications of loans are as follows: December 31, December 31, Commercial Development $ 1,498 $ 2,526 Real estate 53,202 42,276 Commercial and industrial 10,135 7,617 Residential real estate and consumer 1-4 family owner-occupied 47,448 50,284 1-4 family investor-owned 33,658 34,633 Multifamily 31,677 31,905 Consumer 1,613 1,582 Subtotal $ 179,231 $ 170,823 Deferred loan fees (74 ) (88 ) Loans in process (6,002 ) (2,283 ) Allowance for loan losses (1,800 ) (1,478 ) Net loans $ 171,355 $ 166,974 Deposit accounts in an overdraft position and reclassified as loans approximated $2 and $3 at December 31, 2017, and December 31, 2016, respectively. A summary of the activity in the allowance for loan losses by portfolio segment is as follows: Commercial Residential Total December 31, 2017 Beginning balance $ 348 $ 1,130 $ 1,478 Provision for loan losses 312 107 419 Loans charged off — (133 ) (133 ) Recoveries of loans previously charged off — 36 36 Total ending allowance balance $ 660 $ 1,140 $ 1,800 December 31, 2016 Beginning balance $ 497 $ 1,054 $ 1,551 Provision (credit) for loan losses (149 ) 993 844 Loans charged off — (917 ) (917 ) Recoveries of loans previously charged off — — — Total ending allowance balance $ 348 $ 1,130 $ 1,478 Information about how loans were evaluated for impairment and the related allowance for loan losses follows: Commercial Residential Total December 31, 2017 Loans: Individually evaluated for impairment $ 192 $ 2,112 $ 2,304 Collectively evaluated for impairment 64,643 112,284 176,927 Total loans $ 64,835 $ 114,396 $ 179,231 Allowance for loan losses: Individually evaluated for impairment $ — $ 179 $ 179 Collectively evaluated for impairment 660 961 1,621 Total allowance for loan losses $ 660 $ 1,140 $ 1,800 Commercial Residential Total December 31, 2016 Loans: Individually evaluated for impairment $ 140 $ 5,038 $ 5,178 Collectively evaluated for impairment 52,279 113,366 165,645 Total loans $ 52,419 $ 118,404 $ 170,823 Allowance for loan losses: Individually evaluated for impairment $ — $ — $ — Collectively evaluated for impairment 348 1,130 1,478 Total allowance for loan losses $ 348 $ 1,130 $ 1,478 Information regarding impaired loans follows: As of December 31, 2017 Principal Recorded Related Average Interest Loans with related allowance for loan losses: Residential real estate and consumer 1-4 family investor-owned $ 375 $ 330 $ 179 $ 312 $ 8 Loans with no related allowance for loan losses: Commercial Commercial and industrial 198 192 — 204 — Residential real estate and consumer 1-4 family owner-occupied 1,158 1,099 — 1,443 1 1-4 family investor-owned 716 683 — 1,289 24 Total loans with no related allowance 2,072 1,974 — 2,936 25 Total impaired loans $ 2,447 $ 2,304 $ 179 $ 3,248 $ 33 As of December 31, 2016 Principal Recorded Related Average Interest Loans with no related allowance for loan losses: Commercial Real estate $ 14 $ 14 $ — $ 14 $ 1 Commercial and industrial 129 126 — 135 — Residential real estate and consumer 1-4 family owner-occupied 2,363 2,104 — 2,310 20 1-4 family investor-owned 2,707 2,466 — 2,592 73 Multifamily 513 468 — 483 10 Total impaired loans $ 5,726 $ 5,178 $ — $ 5,534 $ 104 As of December 31, 2017, approximately $50 is committed to one impaired loan relationship to finance costs relating to the disposal of several properties. There were no additional funds committed to impaired loans as of December 31, 2016. The Company regularly evaluates various attributes of loans to determine the appropriateness of the allowance for loan losses. The credit quality indicators monitored differ depending on the class of loan. Commercial loans are generally evaluated using the following internally prepared ratings: “Pass” ratings are assigned to loans with adequate collateral and debt service ability such that collectibility of the contractual loan payments is highly probable. “Special mention” ratings are assigned to loans where management has some concern that the collateral or debt service ability may not be adequate, though the collectibility of the contractual loan payments is still probable. “Substandard” ratings are assigned to loans that do not have adequate collateral and/or debt service ability such that collectibility of the contractual loan payments is no longer probable. “Doubtful” ratings are assigned to loans that do not have adequate collateral and/or debt service ability, and collectibility of the contractual loan payments is unlikely. Information regarding the credit quality indicators most closely monitored for commercial loans by class follows: Pass Special Substandard Doubtful Totals December 31, 2017 Development $ 1,498 $ — $ — $ — $ 1,498 Real estate 51,939 1,263 — — 53,202 Commercial and industrial 9,435 586 114 — 10,135 1-4 family investor owned 31,964 1,449 149 96 33,658 Multifamily 31,677 — — — 31,677 Totals $ 126,513 $ 3,298 $ 263 $ 96 $ 130,170 December 31, 2016 Development $ 2,526 $ — $ — $ — $ 2,526 Real estate 42,042 234 — — 42,276 Commercial and industrial 6,895 595 127 — 7,617 1-4 family investor owned 31,114 2,709 720 90 34,633 Multifamily 31,442 220 243 — 31,905 Totals $ 114,019 $ 3,758 $ 1,090 $ 90 $ 118,957 Residential real estate and consumer loans are generally evaluated based on whether or not the loan is performing according to the contractual terms of the loan. Information regarding the credit quality indicators most closely monitored for residential real estate and consumer loans by class follows: Performing Non- Totals December 31, 2017 1-4 family owner-occupied 46,349 1,099 47,448 Consumer 1,613 — 1,613 $ 47,962 $ 1,099 $ 49,061 December 31, 2016 1-4 family owner-occupied 48,180 2,104 50,284 Consumer 1,582 — 1,582 $ 49,762 $ 2,104 $ 51,866 Loan aging information follows: ​ ​ ​ Loans Past Due ​ ​ ​ ​ ​ ​ ​ ​ Nonaccrual ​ ​ ​ ​ Current ​ ​ 30 – 89 ​ ​ 90+ ​ ​ Total Loans ​ December 31, 2017 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Development ​ ​ ​ $ 1,498 ​ ​ ​ ​ $ — ​ ​ ​ ​ $ — ​ ​ ​ ​ $ 1,498 ​ ​ ​ ​ $ — ​ ​ Real estate ​ ​ ​ ​ 53,202 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 53,202 ​ ​ ​ ​ ​ — ​ ​ Commercial and industrial ​ ​ ​ ​ 9,946 ​ ​ ​ ​ ​ 75 ​ ​ ​ ​ ​ 114 ​ ​ ​ ​ ​ 10,135 ​ ​ ​ ​ ​ 114 ​ ​ Residential real estate and consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family owner-occupied ​ ​ ​ ​ 46,943 ​ ​ ​ ​ ​ 436 ​ ​ ​ ​ ​ 69 ​ ​ ​ ​ ​ 47,448 ​ ​ ​ ​ ​ 580 ​ ​ 1-4 family investor-owned ​ ​ ​ ​ 33,209 ​ ​ ​ ​ ​ 205 ​ ​ ​ ​ ​ 244 ​ ​ ​ ​ ​ 33,658 ​ ​ ​ ​ ​ 549 ​ ​ Multifamily ​ ​ ​ ​ 31,677 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 31,677 ​ ​ ​ ​ ​ — ​ ​ Consumer ​ ​ ​ ​ 1,607 ​ ​ ​ ​ ​ 6 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 1,613 ​ ​ ​ ​ ​ — ​ ​ Total ​ ​ ​ $ 178,082 ​ ​ ​ ​ $ 722 ​ ​ ​ ​ $ 427 ​ ​ ​ ​ $ 179,231 ​ ​ ​ ​ $ 1,243 ​ ​ December 31, 2016 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Development ​ ​ ​ $ 2,526 ​ ​ ​ ​ $ — ​ ​ ​ ​ $ — ​ ​ ​ ​ $ 2,526 ​ ​ ​ ​ $ — ​ ​ Real estate ​ ​ ​ ​ 42,276 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 42,276 ​ ​ ​ ​ ​ — ​ ​ Commercial and industrial ​ ​ ​ ​ 7,563 ​ ​ ​ ​ ​ 54 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 7,617 ​ ​ ​ ​ ​ 126 ​ ​ Residential real estate and consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family owner-occupied ​ ​ ​ ​ 48,134 ​ ​ ​ ​ ​ 1,743 ​ ​ ​ ​ ​ 407 ​ ​ ​ ​ ​ 50,284 ​ ​ ​ ​ ​ 1,698 ​ ​ 1-4 family investor-owned ​ ​ ​ ​ 33,896 ​ ​ ​ ​ ​ 170 ​ ​ ​ ​ ​ 567 ​ ​ ​ ​ ​ 34,633 ​ ​ ​ ​ ​ 827 ​ ​ Multifamily ​ ​ ​ ​ 31,905 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 31,905 ​ ​ ​ ​ ​ 248 ​ ​ Consumer ​ ​ ​ ​ 1,580 ​ ​ ​ ​ ​ 2 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 1,582 ​ ​ ​ ​ ​ — ​ ​ Total ​ ​ ​ $ 167,880 ​ ​ ​ ​ $ 1,969 ​ ​ ​ ​ $ 974 ​ ​ ​ ​ $ 170,823 ​ ​ ​ ​ $ 2,899 ​ ​ ​ There are no loans 90 or more days past due and accruing interest as of December 31, 2017 or 2016. Management regularly monitors impaired loan relationships. In the event facts and circumstances change, an additional provision for loan losses may be necessary. Nonperforming loans are as follows: As of December 31 2017 2016 Nonaccrual loans, other than troubled debt restructurings $ 274 $ 12 Nonaccrual loans, troubled debt restructurings 969 2,887 Total nonperforming loans (NPLs) 1,243 2,899 Restructured loans, accruing $ 661 $ 2,279 When, for economic or legal reasons related to the borrower’s financial difficulties, the Company grants a concession to the borrower that the Company would not otherwise consider, the modified loan is classified as a troubled debt-restructuring. Loan modifications may consist of forgiveness of interest and/or principal, a reduction of the interest rate, allowing interest-only payments for a period of time, and/or extending amortization terms. The following presents information regarding new modifications of loans classified as troubled debt restructurings during the years ended December 31, 2017 and 2016. All troubled debt restructurings are classified as impaired loans. The recorded investment presented in the following tables does not include specific reserves for loan losses recognized for these loans, which totaled 0 at December 31, 2017 and December 31, 2016. Number of Pre-Modification Post-Modification December 31, 2017 Commercial: Commercial and industrial 1 $ 88 $ 88 1 $ 88 $ 88 December 31, 2016 Commercial: Real estate 1 $ 14 $ 14 Commercial and industrial 1 127 127 Residential real estate and consumer: 1 – 4 family owner-occupied 3 329 329 1 – 4 family investor-owned 26 1,947 1,947 Multifamily 1 220 220 32 $ 2,637 $ 2,637 The Company considers a troubled debt restructuring in default if it becomes past due more than 90 days. Two 1 – 4 family investor-owned properties totaling $331 defaulted in 2017 that were restructured within twelve months. $82 was charged to the allowance for loan losses relating to these properties. No troubled debt restructurings defaulted within 12 months of their modification date during the year ended December 31, 2016. The Company continues to evaluate purchased loans for impairment in accordance with US GAAP. The purchased loans were considered impaired at the acquisition date if there was evidence of deterioration since origination and if it was probable that not all contractually required principal and interest payments would be collected under the loans. The following table reflects the carrying value of all purchased loans: Contractually Required Carrying Value Credit Non-Credit As of December 31, 2017 Commercial Real estate $ — $ 8,444 $ 8,380 Residential real estate and consumer 1-4 family owner-occupied 146 6,709 6,753 1-4 family investor-owned 149 10,558 10,591 Multifamily — 5,425 5,372 Consumer — — — Totals $ 295 $ 31,136 $ 31,096 Contractually Required Carrying Value Credit Non-Credit As of December 31, 2016 Commercial Real estate $ — $ 9,238 $ 9,113 Residential real estate and consumer 1-4 family owner-occupied 386 9,374 9,546 1-4 family investor-owned 418 13,164 13,294 Multifamily 248 6,463 6,599 Consumer — — — Totals $ 1,052 $ 38,239 $ 38,552 As of December 31, 2017, the estimated contractually-required payments receivable on credit impaired and non-credit impaired loans was $295 and $31,136, respectively. The cash flows expected to be collected related to principal as of December 31, 2017 on all purchased loans is $31,096. As a result, there is approximately $334 of remaining discount on the purchased loans. These amounts are based upon the estimate of the underlying collateral or discounted cash flows as of December 31, 2017. Any excess of cash flows expected over the estimated fair value is referred to as the accretable yield and is recognized in interest income over the remaining life of the loan as the purchased loans pay down, mature, renew or pay off. As of December 31, 2016, the estimated contractually-required payments receivable on credit impaired and non-credit impaired loans was $1,052 and $38,239, respectively. The cash flows expected to be collected related to principal as of December 31, 2016 on all purchased loans is $38,552. As a result, there was approximately $739 of remaining discount on the purchased loans. These amounts are based upon the estimate of the underlying collateral or discounted cash flows as of December 31, 2016. Any excess of cash flows expected over the estimated fair value is referred to as the accretable yield and is recognized in interest income over the remaining life of the loan as the purchased loans pay down, mature, renew or pay off. The change in carrying amount of accretable yield for purchased loans was as follows: For years ended 2017 2016 Beginning Balance $ 739 $ 1,193 Additions — — Accretion (405 ) (454 ) Ending Balance $ 334 $ 739

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Premises and Equipment	NOTE 6 — Premises and Equipment Premises and equipment are stated at cost less accumulated depreciation and are summarized as follows: December 31, 2017 2016 Land $ 479 $ 765 Buildings 4,919 8,417 Leasehold improvements 153 — Furniture and equipment 1,233 1,318 Totals 6,784 10,500 Less: Accumulated depreciation 1,494 2,890 Premises and equipment, net $ 5,290 $ 7,610 Depreciation expense was $460 and $473 for the years ended December 31, 2017 and 2016, respectively. During 2017, the Company sold and leased back two of its office buildings. The Bay View building was sold for $700, resulting in a net loss of approximately $8. The Racine Avenue building was sold for $1,200, resulting in a gain of approximately $59. In conjunction with the sales, the Company entered into ten-year leases, with options to renew for two additional five-year terms. Rent expense for all operating leases was $46 and $0 in 2017 and 2016, respectively. Rent commitments, before considering renewal options that are present, are as follows as of December 31, 2017: 2018 $ 165 2019 167 2020 153 2021 143 2022 146 Thereafter 735 $ 1,509 The Company made a charitable donation of the former branch office located in downtown Waukesha during July 2017, valued at $273. The Company also entered into a lease with a tenant for a portion of the Brookfield branch, commencing June 1, 2017 through May 31, 2024. As of December 31, 2017, minimum future rents receivable are as follows: 2018 $ 95,569 2019 97,479 2020 99,428 2021 101,417 2022 103,446 Thereafter 167,224 $ 664,563

Deposits

Deposits	12 Months Ended
	Dec. 31, 2017
Deposits [Abstract]
Deposits	NOTE 7 — Deposits The composition of deposits are as follows: December 31, 2017 2016 Non-interest bearing checking $ 22,271 $ 12,692 Interest bearing checking 4,017 7,928 Money market 54,472 58,513 Statement savings accounts 14,030 9,613 Health savings accounts 11,335 11,396 Certificates of deposit 76,788 84,497 Total $ 182,913 $ 184,639 Certificates of deposit that meet or exceed the FDIC insurance limit of  $250 totaled $12,424 and $8,385 at December 31, 2017 and 2016, respectively. The scheduled maturities of certificates of deposit are as follows as of December 31, 2017: 2018 $ 45,788 2019 17,333 2020 7,544 2021 4,488 2022 1,635 Total $ 76,788

FHLB Advances

FHLB Advances	12 Months Ended
	Dec. 31, 2017
Advances from Federal Home Loan Banks [Abstract]
FHLB Advances	NOTE 8 — FHLB Advances FHLB advances consist of the following: 2017 2016 Rates Amount Rates Amount Fixed rate, fixed term advances 1.42% – 1.92% 4,750 0.82% – 1.92% 8,777 Discount note floater — 0.45 % 2,500 Fixed term advances with floating spread 1.39% – 1.96% 8,000 .91% – 1.63% 10,000 Total $ 12,750 $ 21,277 The following is a summary of scheduled maturities of fixed term FHLB advances as of December 31, 2017: Fixed Rate Advances Adjustable Rate Advances Total Amount Weighted Amount Weighted Amount 2018 — — 1.39 % 2,000 $ 2,000 2019 1.78 % 2,750 1.58 % 2,000 $ 4,750 2020 1.62 % 2,000 1.74 % 2,000 $ 4,000 2021 — — 1.96 % 2,000 $ 2,000 Total 1.71 % $ 4,750 1.67 % $ 8,000 $ 12,750 Actual maturities may differ from the scheduled principal maturities due to call options on the various advances. The Company has a master contract agreement with the FHLB that provides for a borrowing up to the lesser of a determined multiple of FHLB stock owned or a determined percentage of the book value of the Company’s qualifying 1-4 family, multifamily, and commercial real estate loans. The Company pledged approximately $135,760 and $144,859 of 1-4 family, multifamily, and commercial real estate loans to secure FHLB advances at December 31, 2017 and 2016, respectively. FHLB provides both fixed and floating rate advances. Floating rates are tied to short-term market rates of interest, such as LIBOR, Federal funds or Treasury Bill rates. Fixed rate advances are priced in reference to market rates of interest at the time of the advance, namely the rates that FHLB pays to borrowers at various maturities. FHLB advances are subject to a prepayment penalty if they are repaid prior to maturity. FHLB advances are also secured by $514 and $1,347 of FHLB stock owned by the Company at December 31, 2017 and 2016. At December 31, 2017, the Company’s available and unused portion of this borrowing agreement was $2,000. At December 31, 2016, the Company’s available and unused portion of this borrowing agreement totaled approximately $13,400. Additionally, the Company has a fluctuating $5,000 letter of credit under this agreement, which collateralizes certain public deposits. In addition, the Company has a $7,000 federal funds line of credit through Bankers’ Bank of Wisconsin, which was not drawn on as of December 31, 2017 or December 31, 2016. The Company also has the authority to borrow through the Federal Reserve’s Discount Window.

Employee Benefit Plan

Employee Benefit Plan	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
Employee Benefit Plan	NOTE 9 — Employee Benefit Plan The Company sponsors a 401(k) profit sharing plan that covers substantially all employees. To be eligible to participate, an employee must have completed 1,000 hours of service and be 21 years of age or older. The Company matches 100% of employee contributions up to 4% of their annual compensation. The Company may also make nonelective contributions to the plan at the discretion of the Board of Directors. Expense charged to operations for this plan was $127 and $162 for the years ended December 31, 2017 and 2016, respectively.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 10 — Income Taxes The provision for income taxes included in the accompanying financial statements consists of the following components: Years ended December 31, 2017 2016 Current Taxes (Benefit) Federal $ 192 $ 4 State 76 (5 ) 268 (1 ) Deferred Income Taxes Federal (311 ) (145 ) State (46 ) (10 ) (357 ) (155 ) Impact of Deferred Tax Asset Restatement 353 — Total Provision for Income Taxes $ 264 $ (156 ) Deferred income taxes reflect the net tax effect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The net deferred tax asset in the accompanying balance sheet includes the following amounts of deferred tax assets and liabilities: As of December 31, 2017 2016 Deferred Tax Assets Allowance for loan losses $ 490 $ 582 Deferred compensation 120 176 Real estate owned — 10 Non-accrual interest 30 43 Purchase accounting 17 88 Federal net operating loss carryforwards — 123 State net operating loss carryforwards — 15 AMT credit 108 77 Unrealized loss on available for sale securities 133 67 Charitable contribution carryforward 235 — Other 11 44 Deferred Tax Assets $ 1,144 $ 1,225 Deferred Tax Liabilities Depreciation and amortization (17 ) (78 ) FHLB stock (30 ) (113 ) Other (7 ) (14 ) Deferred Tax Liabilities $ (54 ) $ (205 ) Net Deferred Tax Asset $ 1,090 $ 1,020 On December 22, 2017, the President of the United States signed into law the Tax Cuts and Jobs Act (the “Act”). The Act amends the Internal Revenue Code to reduce corporate tax rates and modify various tax policies, credits, and deductions. The Act reduces the corporate federal tax rate from a maximum of 35% to a flat 21% rate, which is effective for the Company beginning January 1, 2018. As a result of the tax rate reduction in the Act, the Company reduced its net deferred tax asset during the year ended December 31, 2017, by $353, which was recognized as additional income tax expense. A summary of the sources of differences between income taxes at the federal statutory rate and the provision (credit) for income taxes follows: Years ended December 31, 2017 2016 Amount % of Pretax Amount % of Pretax Reconciliation of statutory to effective rates Federal income taxes at statutory rate $ 27 34.00 % $ 5 34.00 % Adjustments for Tax exempt interest on municipal obligations (45 ) -57.69 % (84 ) -566.37 % State income taxes, net of federal income tax benefit 20 25.64 % (10 ) -66.67 % Increase in CSV of life insurance (67 ) -85.90 % (67 ) -445.83 % Impact of Deferred Tax Asset Restatement 353 452.56 % — 0.00 % Other (24 ) -30.77 % — 0.00 % Provision (credit) for income taxes $ 264 337.85 % $ (156 ) -1053.59 % With few exceptions, the Company is no longer subject to federal or state examinations by taxing authorities for years before 2013. At December 31, 2016, the Company had a state net operating loss carryover of approximately $270 that will expire in 2036. The Company had a federal net operating loss carryover of approximately $0 and $362 at December 31, 2017 and December 31, 2016, respectively, that will expire in 2036.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	NOTE 11 — Commitments and Contingencies In the normal course of business, the Company may be involved in various legal proceedings. In the opinion of management, any liability resulting from such proceedings would not have a material adverse effect on the Company’s financial statements. No legal proceedings existed at December 31, 2017. The Company is party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers. These instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the balance sheets. The Company’s exposure to credit loss is represented by the contractual, or notional, amount of these commitments. The Company follows the same credit policies in making commitments as it does for on-balance-sheet instruments. Since some of the commitments are expected to expire without being drawn upon, and some of the commitments may not be drawn upon to the total extent of the commitment, the notional amount of these commitments does not necessarily represent future cash requirements of the Company. The contract amounts of credit-related financial instruments at December 31, 2017 and 2016 are summarized below: Notional Amount 2017 2016 Unused lines of credit Fixed 4,497 3,234 Variable 10,807 10,022 Undisbursed portion of loan proceeds, fixed 6,002 2,283 Standby letters of credit, variable 822 537 Unused commitments under lines of credit are commitments for possible future extensions of credit to existing customers. These lines of credit may or may not require collateral and may or may not contain a specific maturity date. All of these commitments are at variable rates. The undisbursed portion of loan proceeds represents undrawn amounts under construction loans. These loans are generally secured by real estate and generally have a specific maturity date. Standby letters of credit are conditional lending commitments issued by the Company to guarantee the performance of a customer to a third party. Generally, all standby letters of credit issued have expiration dates within one year. The credit risk involved in issuing standby letters of credit is essentially the same as that involved in extending loan facilities to customers. The Company generally holds collateral supporting these commitments. Standby letters of credit are not reflected in the financial statements, since recording the fair value of these guarantees would not have a significant impact on the financial statements. The Company sells loans to investors and does not retain servicing responsibilities. Upon sale, the risk of credit loss is passed to the investor, unless the loan is sold with recourse. For loans sold without recourse, the Company does not retain the risk of loss should a loan, previously sold, go into default, unless it is determined that such loan was not within the agreed-upon underwriting guidelines due to negligence on the part of the Company or fraud on the part of the borrower. Such risk retention is standard within the mortgage banking industry. The Company’s exposure relating to the fair value of the representations and warranties and other recourse obligations is not material. The Company is contingently liable in the amount of  $3,647 relating to loans sold with recourse at December 31, 2017 and $9,555 as of December 31, 2016. All recourse provisions expire within four months from when the loan is sold.

Concentration of Credit Risk

Concentration of Credit Risk	12 Months Ended
	Dec. 31, 2017
Risks and Uncertainties [Abstract]
Concentration of Credit Risk	NOTE 12 — Concentration of Credit Risk Financial instruments that potentially subject the Company to credit risk consist primarily of cash and cash equivalents, investments, and loans. The Company’s cash and cash equivalents are held in demand accounts with various institutions. The Company’s investments are held in a variety of interest bearing investments including obligations from the U.S. government and government sponsored agencies and certificates of deposit. Such deposits are generally in excess of insured limits. The Company has not experienced any historical losses on its deposits of cash and cash equivalents. Practically all of the Company’s loans and commitments have been granted to customers in the Company’s market area. Although the Company has a diversified loan portfolio, the ability of their debtors to honor their contracts is dependent on the economic conditions of the counties surrounding the Company. The concentration of credit by type of loan is set forth in Note 4.

Related-Party Transactions

Related-Party Transactions	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Related-Party Transactions	NOTE 13 — Related-Party Transactions A summary of loans to directors, executive officers, and their affiliates follows: ​ ​ ​ Years ended December 31, ​ ​ ​ ​ 2017 ​ ​ 2016 ​ Beginning balance ​ ​ ​ $ 2,853 ​ ​ ​ ​ $ 2,796 ​ ​ Adjustments for changes in directors and executive officers ​ ​ ​ ​ — ​ ​ ​ ​ ​ (140 ) ​ ​ New loans ​ ​ ​ ​ 9,976 ​ ​ ​ ​ ​ 545 ​ ​ Less: Participations sold ​ ​ ​ ​ (5,913 ) ​ ​ ​ ​ ​ — ​ ​ Repayments ​ ​ ​ ​ (219 ) ​ ​ ​ ​ ​ (348 ) ​ ​ Ending balance ​ ​ ​ $ 6,697 ​ ​ ​ ​ $ 2,853 ​ ​ ​ Deposits from directors, executive officers, and their affiliates totaled $1,333 and $1,167 at December 31, 2017 and 2016, respectively. The Company utilizes the services of a law firm in which one of the Company’s directors is a partner. Fees paid to the firm were $38 and $81 during the years ended 2017 and 2016, respectively. The Company also has an operating lease with the law firm for office space through 2020. Rent paid in 2017 pertaining to this lease was $16. To further the Company’s commitment to the local community, $250,000 cash as well as 25,000 shares of stock were donated to a charitable foundation established by the Company as part of the reorganization and offering in 2017.

Foreclosed Assets

Foreclosed Assets	12 Months Ended
	Dec. 31, 2017
Repossessed Assets [Abstract]
Foreclosed Assets	NOTE 14 — Foreclosed Assets Foreclosed Assets consists of two owner-occupied 1-4 family properties as of December 31, 2017 totaling $619 and one foreclosed commercial real estate property totaling $667 at December 31, 2016. There were no foreclosed residential real estate loans at December 31, 2016. Residential real estate loans that are in the process of foreclosure totaled $165 and $307 at December 31, 2017 and 2016, respectively.

Fair Value

Fair Value	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value	NOTE 15 — Fair Value Accounting standards describe three levels of inputs that may be used to measure fair value (the fair value hierarchy). The level of an asset or liability within the fair value hierarchy is based on the lowest level of input significant to the fair value measurement of that asset or liability. Following is a brief description of each level of the fair value hierarchy: Level 1 — Fair value measurement is based on quoted prices for identical assets or liabilities in active markets. Level 2 — Fair value measurement is based on: (1) quoted prices for similar assets or liabilities in active markets; (2) quoted prices for identical or similar assets or liabilities in markets that are not active; or (3) valuation models and methodologies for which all significant assumptions are or can be corroborated by observable market data. Level 3 — Fair value measurement is based on valuation models and methodologies that incorporate at least one significant assumption that cannot be corroborated by observable market data. Level 3 measurements reflect the Company’s estimates about assumptions market participants would use in measuring fair value of the asset or liability. Some assets and liabilities, such as securities available for sale, are measured at fair value on a recurring basis under accounting principles generally accepted in the United States. Other assets and liabilities, such as impaired loans, may be measured at fair value on a nonrecurring basis. Following is a description of the Company’s valuation methodology and significant inputs used for each asset and liability measured at fair value on a recurring or nonrecurring basis, as well as the classification of the asset or liability within the fair value hierarchy. Available for sale securities Loans Foreclosed assets Assets measured at fair value on a recurring basis are summarized below: Recurring Fair Value Measurements Using Quoted Prices Significant Significant Total As of December 31, 2017 Assets: Available for sale securities: Obligations of the US government and US government sponsored agencies $ — $ 2,220 $ — $ 2,220 Obligations of states and political subdivisions — 13,137 — 13,137 Mortgage-backed securities — 33,467 — 33,467 Certificates of deposit — 3,997 — 3,997 Corporate debt securities — 5,191 — 5,191 Total $ — $ 58,012 $ — $ 58,012 As of December 31, 2016 Assets: Available for sale securities: Obligations of the US government and US government sponsored agencies $ — $ 3,919 $ — $ 3,919 Obligations of states and political subdivisions — 15,562 — 15,562 Mortgage-backed securities — 22,892 — 22,892 Certificates of deposit — 1,014 — 1,014 Corporate debt securities — 5,226 — 5,226 Total $ — $ 48,613 $ — $ 48,613 Information regarding the fair value of assets measured at fair value on a nonrecurring basis follows: Nonrecurring Fair Value Measurements Using Quoted Prices Significant Significant Total As of December 31, 2017 Assets: Loans $ — $ — $ 151 $ 151 Foreclosed assets — — 619 619 As of December 31, 2016 Assets: Foreclosed assets $ — $ — $ 667 $ 667 Loans with a carrying amount of  $330 were considered impaired and were written down to their estimated fair value of  $151 as of December 31, 2017. As a result, the Company recognized a specific valuation allowance against these impaired loans totaling $179 as of December 31, 2017. There were no loans with specific allowances as of December 31, 2016. Foreclosed assets with a carrying amount of  $619 and $667 were determined to be at their fair value as of December 31, 2017 and December 31, 2016, respectively. The following presents quantitative information about nonrecurring Level 3 fair value measurements: Fair Valuation Technique Unobservable Input(s) Range/ As of December 31, 2017 Impaired loans $ 151 Market and/or Management discount 10% – 20% Foreclosed assets $ 619 Market and/or Management discount 10% – 20% As of December 31, 2016 Foreclosed assets $ 667 Market and/or Management discount 10% – 20% The Company estimates fair value of all financial instruments regardless of whether such instruments are measured at fair value. The following methods and assumptions were used by the Company to estimate fair value of financial instruments not previously discussed. Cash and cash equivalents —  Fair value approximates the carrying value. Loans held for sale —  Fair value is based on commitments on hand from investors or prevailing market prices. Loans —  Fair value of variable rate loans that reprice frequently is based on carrying values. Fair value of other loans is estimated by discounting future cash flows using current rates at which similar loans would be made to borrowers with similar credit ratings. Fair value of impaired and other nonperforming loans is estimated using discounted expected future cash flows or the fair value of the underlying collateral, if applicable. FHLB stock Accrued interest receivable and payable Cash value of life insurance Deposits and advance payments by borrowers for taxes and insurance FHLB Advances The carrying value and estimated fair value of financial instruments follow: December 31, 2017 Carrying Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 11,813 $ 11,813 $ — $ — Available for sale securities 58,012 — 58,012 — Loans held for sale 109 — 109 — Loans 171,355 — — 171,729 Accrued interest receivable 782 782 — — Cash value of life insurance 6,558 — — 6,558 FHLB stock 514 — — 514 Financial liabilities: Deposits 182,913 106,125 — 76,099 Advance payments by borrowers for taxes and insurance 36 36 — — FHLB advances 12,750 — — 12,597 Accrued interest payable 37 37 — — December 31, 2016 Carrying Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 6,911 $ 6,911 $ — $ — Available for sale securities 48,613 — 48,613 — Loans held for sale 592 — 592 — Loans 166,974 — — 167,628 Accrued interest receivable 760 760 — — Cash value of life insurance 6,352 — — 6,352 FHLB stock 1,347 — — 1,347 Financial liabilities: Deposits 184,639 100,142 — 83,907 Advance payments by borrowers for taxes and insurance 33 33 — — FHLB advances 21,277 — — 21,139 Accrued interest payable 29 29 — — Limitations —  Fair value estimates are made at a specific point in time based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular instrument. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters that could affect the estimates. Fair value estimates are based on existing on- and off-balance-sheet financial instruments without attempting to estimate the value of anticipated future business. Deposits with no stated maturities are defined as having a fair value equivalent to the amount payable on demand. This prohibits adjusting fair value derived from retaining those deposits for an expected future period of time. This component, commonly referred to as a deposit base intangible, is neither considered in the above amounts, nor is it recorded as an intangible asset on the consolidated balance sheets. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.

Equity and Regulatory Matters

Equity and Regulatory Matters	12 Months Ended
	Dec. 31, 2017
Regulatory Capital Requirements [Abstract]
Equity and Regulatory Matters	NOTE 16 — Equity and Regulatory Matters The Bank is subject to various regulatory capital requirements administered by federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory, and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Quantitative measures established by regulation to ensure capital adequacy require the Bank to maintain minimum amounts and ratios (set forth in the table below) of Common Equity Tier 1, Tier 1, and Total capital to risk-weighted assets and of Tier 1 capital to average assets. It is management’s opinion, as of December 31, 2017, that the Bank meet all applicable capital adequacy requirements. As of December 31, 2017, the Bank is categorized as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Bank must maintain minimum regulatory capital ratios as set forth in the table. There are no conditions or events since December 31, 2017 that management believes have changed the category. The Bank’s actual capital amounts and ratios are presented in the following tables: Actual For Capital Adequacy To Be Well Capitalized (Dollars in Thousands) Amount Ratio Amount Ratio Amount Ratio December 31, 2017: Leverage (Tier 1) $ 47,513 17.2 % $ 11,051 4.0 % $ 13,813 5.0 % Risk Based: Common Tier 1 47,513 26.8 7,973 4.5 11,517 6.5 Tier 1 47,513 26.8 10,631 6.0 14,174 8.0 Total 49,313 27.8 14,174 8.0 17,718 10.0 December 31, 2016: Leverage (Tier 1) $ 34,052 13.9 % $ 9,778 4.0 % $ 12,222 5.0 % Risk Based: Common Tier 1 34,052 20.9 7,344 4.50 10,608 6.50 Tier 1 34,052 20.9 9,792 6.00 13,056 8.00 Total 35,530 21.8 13,056 8.00 16,320 10.00

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	NOTE 17 — Intangible Assets The core deposit premium intangible asset had a gross carrying amount of  $161 and accumulated amortization of  $58 at December 31, 2017. The core deposit premium intangible asset had a gross carrying amount of  $161 and accumulated amortization of  $42 at December 31, 2016. Aggregate amortization expense for the years ended December 31, 2017 and 2016 was $16 and $16. The following table shows the estimated future amortization of the core deposit premium intangible asset for the next five years. The projections of amortization expense are based on existing asset balances: As of 2018 $ 16 2019 16 2020 16 2021 16 2022 16

Deferred Compensation

Deferred Compensation	12 Months Ended
	Dec. 31, 2017
Compensation Related Costs [Abstract]
Deferred Compensation	NOTE 18 — Deferred Compensation The Company has entered into various deferred compensation agreements with key officers. The liability outstanding under the agreements was $442 at December 31, 2017 and $446 at December 31, 2016. The amount charged to operations was $51 and $132 for the twelve months ended December 31, 2017 and 2016.

Employee Stock Ownership Plan

Employee Stock Ownership Plan	12 Months Ended
	Dec. 31, 2017
Employee Stock Ownership Plan (ESOP), Shares in ESOP [Abstract]
Employee Stock Ownership Plan	NOTE 19 — Employee Stock Ownership Plan The Company maintains a leveraged employee stock ownership plan (“ESOP”) that covers substantially all employees. The ESOP was established in conjunction with the Company’s stock offering completed in October 2017 and operates on a plan year ending September 30. The loan to fund the acquisition of stock by the ESOP was made by the Company. The Bank makes annual contributions to the ESOP equal to the ESOP’s debt service. The ESOP shares initially were pledged as collateral for this debt. As the debt is repaid, shares are released from collateral and allocated to active participants, based on the proportion of debt service paid in the year. Because the debt is intercompany, it is eliminated in consolidation for presentation in these financial statements. The shares pledged as collateral are reported as unearned ESOP shares in the balance sheet. As shares are committed to be released from collateral and allocated to active participants, the Company reports compensation expense equal to the current market price of the shares and the shares will become outstanding for earnings-per-shares (EPS) computations. During the years ended December 31, 2017, 2,947 shares were committed to be released. During the years ended December 31, 2017, the average fair value per share of stock was $11.00 resulting in total ESOP compensation expense of  $32 for the year ended December 31, 2017. The ESOP shares as of December 31 were as follows: 2017 Shares committed to be released and allocated to participants 2,947 Total unallocated shares 256,263 Total ESOP shares 259.210

Summary of Significant Accoun28

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates In preparing financial statements in conformity with accounting principles generally accepted in the United States of America, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, the fair values of securities, fair value of financial instruments, the valuation of other real estate owned and the valuation of deferred income tax assets.
Cash and Cash Equivalents	Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash and balances due from banks, non-maturity deposits in the Federal Home Loan Bank of Chicago (FHLB), and fed funds sold.
Available for Sale Securities	Available for Sale Securities Securities classified as available for sale are those securities that the Company intends to hold for an indefinite period of time, but not necessarily to maturity. Any decision to sell a security classified as available for sale would be based on various factors, including significant movements in interest rates, changes in the maturity mix of the Company’s assets and liabilities, liquidity needs, regulatory capital requirements, and other similar factors. Securities classified as available for sale are carried at fair value. Unrealized gains or losses are reported as increases or decreases in other comprehensive income, net of the related deferred tax effect. Realized gains or losses, determined on the basis of the cost of specific securities sold, are included in earnings. Gains and losses on the sale of securities are recorded on the trade date and determined using the specific-identification method. Declines in fair value of securities that are deemed to be other than temporary, if applicable, are reflected in earnings as realized losses. In estimating other-than-temporary impairment losses, management considers the length of time and the extent to which fair value has been less than cost, the financial condition and near-term prospects of the issuer, and the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient enough to allow for any anticipated recovery in fair value.
Loans Acquired in a Transfer	Loans Acquired in a Transfer The Company acquires loans (including debt securities) individually and in groups or portfolios. These loans are initially measured at fair value with no allowance for loan losses. The Company’s allowance for loan losses on all acquired loans reflect only those losses incurred subsequent to acquisition. Certain acquired loans may have experienced deterioration of credit quality between origination and the Company’s acquisition of the loans. At acquisition, the Company reviews each loan to determine whether there is evidence of deterioration of credit quality since origination and if it is probable that the Company will be unable to collect all amounts due according to the loan’s contractual terms. If both conditions exist, the Company determines whether each such loan is to be accounted for individually or whether such loans will be assembled into pools of loans based on common risk characteristics (for example, credit score, loan type, and date of origination). The Company considers expected prepayments and estimates the amount and timing of undiscounted principal, interest, and other cash flows expected at acquisition for each loan and aggregated pool of loans. The excess of the loan’s or pool’s scheduled contractual principal and interest payments over all cash flows expected at acquisition is calculated as the nonaccretable difference. The excess of cash flows expected to be collected over the fair value of each loan or pool (accretable yield) is accreted into interest income over the remaining life of the loan or pool. At each reporting date, the Company continues to estimate cash flows expected to be collected for each loan or pool. If expected cash flows have decreased from the acquisition date estimate, the Company recognizes an allowance for loan losses. If expected cash flows have increased from the acquisition date estimate, the Company increases the amount of accretable yield to be recognized as interest income over the remaining life of the loan or pool.
Loans Held for Sale	Loans Held for Sale Loans originated and intended for sale in the secondary market are carried at the lower of cost or estimated fair value in the aggregate. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. Mortgage loans held for sale are sold with the mortgage servicing rights released by the Company. Gains or losses on sales of mortgage loans are recognized based on the difference between the selling price and the carrying value of the related mortgage loan sold.
Loans	Loans Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff generally are reported at their outstanding unpaid principal balances adjusted for deferred loan fees and costs, charge-offs, and an allowance for loan losses. Interest on loans is accrued and credited to income based on the unpaid principal balance. Loan-origination fees, net of certain direct origination costs, are deferred and recognized as an adjustment of the related loan yield using the interest method. The accrual of interest on loans is discontinued when, in the opinion of management, there is an indication that the borrower may be unable to make payments as they become due. When loans are placed on nonaccrual status or charged off, all unpaid accrued interest is reversed against interest income. The interest on these loans is subsequently accounted for on the cash-basis or cost-recovery method until qualifying for return to accrual status. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.
Allowance for Loan Losses	Allowance for Loan Losses The allowance for loan losses is maintained at the level considered adequate by management to provide for losses that are probable as of the balance sheet date. The allowance for loan losses is established through a provision for loan losses charged to expense as losses are estimated to have occurred. Loan losses are charged against the allowance when management believes that the collectability of the principal is unlikely. Subsequent recoveries, if any, are credited to the allowance. In determining the adequacy of the allowance balance, the Company makes evaluations of the loan portfolio and related off-balance sheet commitments, considers current economic conditions and historical loss experience, and reviews specific problem loans and other factors. When establishing the allowance for loan losses, management categorizes loans into risk categories generally based on the nature of the collateral and the basis of repayment. These risk categories and their relevant risk characteristics are as follows: Commercial development: Commercial real estate: Commercial and industrial: 1-4 family owner-occupied: 1-4 family investor-owned: Multifamily real estate: Consumer: Management regularly evaluates the allowance for loan losses using the Company’s past loan loss experience, known and inherent risks in the loan portfolio, composition of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral, current economic conditions, and other relevant factors. This evaluation is inherently subjective since it requires material estimates that may be susceptible to significant change. A loan is impaired when, based on current information, it is probable that the Company will not collect all amounts due in accordance with the contractual terms of the loan agreement. Management determines whether a loan is impaired on a case-by-case basis, taking into consideration the payment status, collateral value, length and reason of any payment delays, the borrower’s prior payment record, and any other relevant factors. Large groups of smaller-balance homogeneous loans, such as residential mortgage and consumer loans, are collectively evaluated in the allowance for loan losses analysis and are not subject to impairment analysis unless such loans have been subject to a restructuring agreement. Specific allowances for impaired loans are based on discounted cash flows of expected future payments using the loan’s initial effective interest rate or the fair value of the collateral if the loan is collateral dependent. In addition, various regulatory agencies periodically review the allowance for loan losses. These agencies may require the Company to make additions to the allowance for loan losses based on their judgments of collectability based on information available to them at the time of their examination.
Troubled Debt Restructurings	Troubled Debt Restructurings Loans are accounted for as troubled debt restructurings when a borrower is experiencing financial difficulties that lead to a restructuring of the loan, and the Company grants a “concession” to the borrower that they would not otherwise consider. These concessions include a modification of terms such as a reduction of the stated interest rate or loan balance, a reduction of accrued interest, an extension of the maturity date at an interest rate lower than a current market rate for a new loan with similar risk, or some combination thereof to facilitate repayment. Troubled debt restructurings are considered impaired loans.
Foreclosed Assets	Foreclosed Assets Assets acquired through, or in lieu of, loan foreclosure are held for sale and are initially recorded at fair value, less costs to sell, at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, valuations are periodically performed by management, and the assets are carried at the lower of carrying amount or fair value less costs to sell. Revenue and expenses from operations and changes in the valuation allowance are included in net expenses from foreclosed assets.
Premises and Equipment	Premises and Equipment Depreciable assets are stated at cost less accumulated depreciation. Provisions for depreciation are computed on straight-line and accelerated methods over the estimated useful lives of the assets.
Federal Home Loan Bank Stock	Federal Home Loan Bank Stock The Company’s investment in Federal Home Loan Bank (“FHLB”) stock is carried at cost, which approximates fair value. The Company is required to hold the stock as a member of the FHLB, and transfer of the stock is substantially restricted. The stock is evaluated for impairment on an annual basis.
Income Taxes	Income Taxes Amounts provided for income tax expense are based on income reported for financial statement purposes and do not necessarily represent amounts currently payable under tax laws. Deferred income tax assets and liabilities are computed annually for differences between the financial statement and income tax basis of assets and liabilities that will result in taxable or deductible amounts in the future based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. As changes in tax laws or rates are enacted, deferred income tax assets and liabilities are adjusted through the provision for income taxes. The differences relate principally to the allowances for loan losses, deferred compensation, depreciation, FHLB stock dividends and non-accrual interest. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized. The tax effects from an uncertain tax position can be recognized in the financial statements only if 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. Based on its evaluation, the Company has concluded that there are no significant uncertain tax positions requiring recognition in its financial statements. The Company’s policy is to recognize interest and penalties related to income tax issues as components of income tax expense. During the periods shown, the Company did not recognize any interest or penalties related to income tax expense in its 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 Company, (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 Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Advertising	Advertising Advertising costs are expensed as incurred.
Other Comprehensive Loss	Other Comprehensive Loss Other comprehensive loss is shown on the statements of comprehensive income (loss). The Company’s accumulated other comprehensive income (loss) is composed of the unrealized loss on securities available for sale, net of tax and is shown on the statements of changes in equity. Reclassification adjustments out of other comprehensive loss for gains realized on sales of securities available for sale comprise the entire balance of  “net gain on sale of securities” on the statements of operations. As part of this reclassification, income tax expense of approximately $5 and $51 was recognized for the years ended December 31, 2017 and 2016 in “provision (credit) for income taxes” on the statements of operations.
Off-Balance Sheet Financial Instruments	Off-Balance Sheet Financial Instruments In the ordinary course of business, the Company has entered into off-balance-sheet financial instruments consisting of commitments to extend credit, unfunded commitments under lines of credit, and standby letters of credit. Such financial instruments are recorded in the financial statements when they become payable.
Life Insurance	Life Insurance The Company has purchased life insurance policies on certain key executives. Life insurance is measured at the amount that could be realized under the insurance contract as of the balance sheet date, which is generally the cash surrender value of the policy.
Subsequent Events	Subsequent Events Management has reviewed the Company’s operations for potential disclosure or financial statement impacts related to events occurring after December 31, 2017, but prior to the release of these financial statements. Based on the results of this review, no subsequent event disclosure or financial statement impacts to these financial statements are required as of
Reclassifications	Reclassifications Certain reclassifications have been made to the 2016 consolidated financial statements to conform to the 2017 classifications.
Recent Accounting Pronouncements	Recent Accounting Pronouncements The Company recently adopted the following Accounting Standards Updates (ASU) issued by the Financial Accounting Standards Board (FASB): ASU 2017-08 “Receivables — Non-Refundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities.” The ASU requires premiums on callable debt securities to be amortized to the earliest call date. The Company adopted this accounting standard for the year ended December 31, 2017. The following Accounting Standards Updates (ASUs) have been issued by the Financial Accounting Standards Board (FASB) and may impact the Company’s financial statements in future reporting periods. ASU No. 2016-13, “Credit Losses (Topic 326).” ASU 2016-13 requires organizations to measure all expected credit losses for financial instruments held at the reporting date based on historical experience, current conditions and reasonable and supportable forecasts. The guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early adoption will be permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently assessing the impact of adopting ASU 2016-13 on its financial statements. ASU 2016-02 “Leases.” ASU 2016-02 affects any entity that enters into a lease and is intended to increase the transparency and comparability of financial statements among organizations. The ASU requires, among other changes, a lessee to recognize on its balance sheet a lease asset and a lease liability for those leases previously classified as operating leases. The lease asset would represent the right to use the underlying asset for the lease term and the lease liability would represent the discounted value of the required lease payments to the lessor. The ASU would also require entities to disclose key information about leasing arrangements. ASU 2016-02 is effective for interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted. Management is currently evaluating the impact that ASU 2016-02 will have on the Company’s consolidated financial position, results of operations and disclosures. ASU No. 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities”. The standard makes a number of changes to the recognition and measurement standards of financial instruments, including the following changes: 1) equity securities with a readily determinable fair value will have to be measured at fair value with changes in fair value recognized in net income; 2) entities that are public business entities will no longer be required to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost; and 3) entities that are public business entities will be required to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes. This standard is effective for financial statements issued for annual reporting periods, and interim periods within those annual periods, beginning after December 15, 2018. The adoption of this standard is not expected to have a material impact on our financial condition or results of operations, except that the Company will no longer disclose the method(s) and significant assumptions used to estimate the fair value of financial instruments measured at amortized cost. ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)”. The amendment supersedes and replaces nearly all existing revenue recognition guidance. Under the amended guidance, an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This guidance is effective for annual and interim periods beginning after December 15, 2018. Adoption of ASU No. 2014-09 is not expected to have a material impact on the Company’s financial statements.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Schedule of earnings (loss) per share is based on net income (loss)	Year Ended December 31, 2017** 2016 Net income (loss) $ (186 )     * Basic potential common shares Weighted average shares outstanding 6,612,500 * Weighted average unallocated Employee Stock Ownership Plan Shares (257,245 ) * Basic weighted average shares outstanding 6,355,255 * Dilutive potential common shares — * Diluted weighted average shares outstanding 6,355,255 * Basic earnings (loss) per share $ (0.03 ) * Diluted earnings (loss) per share $ (0.03 ) * * Earnings (loss) per share for the year ended December 31, 2016 is not applicable because the public offering was completed in October 2017. ** Earnings (loss) per share for the year ended December 31, 2017 includes income attributed to the period prior to the initial public offering for the common shares issued.

Available for Sale Securities (

Available for Sale Securities (Tables)	12 Months Ended
	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Schedule of amortized costs and fair values of available for sale securities	​ ​ ​ Amortized ​ ​ Gross ​ ​ Gross ​ ​ Estimated ​ December 31, 2017 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Obligations of the US government and US government ​ ​ ​ $ 2,211 ​ ​ ​ ​ $ 11 ​ ​ ​ ​ $ (2 ) ​ ​ ​ ​ $ 2,220 ​ ​ Obligations of states and political subdivisions ​ ​ ​ ​ 13,102 ​ ​ ​ ​ ​ 104 ​ ​ ​ ​ ​ (69 ) ​ ​ ​ ​ ​ 13,137 ​ ​ Mortgage-backed securities ​ ​ ​ ​ 33,908 ​ ​ ​ ​ ​ 14 ​ ​ ​ ​ ​ (455 ) ​ ​ ​ ​ ​ 33,467 ​ ​ Certificates of deposit ​ ​ ​ ​ 4,000 ​ ​ ​ ​ ​ 6 ​ ​ ​ ​ ​ (9 ) ​ ​ ​ ​ ​ 3,997 ​ ​ Corporate debt securities ​ ​ ​ ​ 5,171 ​ ​ ​ ​ ​ 29 ​ ​ ​ ​ ​ (9 ) ​ ​ ​ ​ ​ 5,191 ​ ​ Total available for sale securities ​ ​ ​ $ 58,392 ​ ​ ​ ​ $ 164 ​ ​ ​ ​ $ (544 ) ​ ​ ​ ​ $ 58,012 ​ ​ December 31, 2016 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Obligations of the US government and US government ​ ​ ​ $ 3,885 ​ ​ ​ ​ $ 36 ​ ​ ​ ​ $ (2 ) ​ ​ ​ ​ $ 3,919 ​ ​ Obligations of states and political subdivisions ​ ​ ​ ​ 15,606 ​ ​ ​ ​ ​ 104 ​ ​ ​ ​ ​ (148 ) ​ ​ ​ ​ ​ 15,562 ​ ​ Mortgage-backed securities ​ ​ ​ ​ 23,155 ​ ​ ​ ​ ​ 39 ​ ​ ​ ​ ​ (302 ) ​ ​ ​ ​ ​ 22,892 ​ ​ Certificates of deposit ​ ​ ​ ​ 1,000 ​ ​ ​ ​ ​ 17 ​ ​ ​ ​ ​ (3 ) ​ ​ ​ ​ ​ 1,014 ​ ​ Corporate debt securities ​ ​ ​ ​ 5,159 ​ ​ ​ ​ ​ 76 ​ ​ ​ ​ ​ (9 ) ​ ​ ​ ​ ​ 5,226 ​ ​ Total available for sale securities ​ ​ ​ $ 48,805 ​ ​ ​ ​ $ 272 ​ ​ ​ ​ $ (464 ) ​ ​ ​ ​ $ 48,613 ​ ​ ​
Schedule of gross unrealized losses	Less Than 12 Months 12 Months or More Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized December 31, 2017 Obligations of the US government and US government sponsored agencies $ 235 $ (2 ) $ — $ — $ 235 $ (2 ) Obligations of states and political subdivisions 3,180 (23 ) 2,660 (46 ) 5,840 (69 ) Mortgage-backed securities 22,685 (213 ) 9,270 (242 ) 31,955 (455 ) Certificates of deposit 2,492 (9 ) — — 2,492 (9 ) Corporate debt securities 2,683 (8 ) 250 (1 ) 2,933 (9 ) Total $ 31,275 $ (255 ) $ 12,180 $ (289 ) $ 43,455 $ (544 ) December 31, 2016 Obligations of the US government and US government sponsored agencies $ 733 $ (1 ) $ 179 $ (1 ) $ 912 $ (2 ) Obligations of states and political subdivisions 7,087 (148 ) — — 7,087 (148 ) Mortgage-backed securities 15,370 (278 ) 1,365 (24 ) 16,735 (302 ) Certificates of deposit 247 (3 ) — — 247 (3 ) Corporate debt securities 1,590 (8 ) 249 (1 ) 1,839 (9 ) Total $ 25,027 $ (438 ) $ 1,793 $ (26 ) $ 26,820 $ (464 )
Schedule of amortized cost and fair value of available for sale securities by contractual maturity	December 31, 2017 Amortized Fair Value Due in one year or less $ — $ — Due after one year through 5 years 9,412 9,439 Due after 5 years through 10 years 7,679 7,703 Due after 10 years 7,393 7,403 Subtotal $ 24,484 $ 24,545 Mortgage-backed securities 33,908 33,467 Total $ 58,392 $ 58,012
Schedule of proceeds from sales of securities available for sale, as well as gross gains and losses	Years ended December 31, 2017 2016 Proceeds from sale of securities $ 6,856 $ 9,485 Gross gains 86 133 Gross losses (66 ) (4 )

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of major classifications of loans	December 31, December 31, Commercial Development $ 1,498 $ 2,526 Real estate 53,202 42,276 Commercial and industrial 10,135 7,617 Residential real estate and consumer 1-4 family owner-occupied 47,448 50,284 1-4 family investor-owned 33,658 34,633 Multifamily 31,677 31,905 Consumer 1,613 1,582 Subtotal $ 179,231 $ 170,823 Deferred loan fees (74 ) (88 ) Loans in process (6,002 ) (2,283 ) Allowance for loan losses (1,800 ) (1,478 ) Net loans $ 171,355 $ 166,974
Schedule of allowance for loan losses by portfolio segment	Commercial Residential Total December 31, 2017 Beginning balance $ 348 $ 1,130 $ 1,478 Provision for loan losses 312 107 419 Loans charged off — (133 ) (133 ) Recoveries of loans previously charged off — 36 36 Total ending allowance balance $ 660 $ 1,140 $ 1,800 December 31, 2016 Beginning balance $ 497 $ 1,054 $ 1,551 Provision (credit) for loan losses (149 ) 993 844 Loans charged off — (917 ) (917 ) Recoveries of loans previously charged off — — — Total ending allowance balance $ 348 $ 1,130 $ 1,478 Commercial Residential Total December 31, 2017 Loans: Individually evaluated for impairment $ 192 $ 2,112 $ 2,304 Collectively evaluated for impairment 64,643 112,284 176,927 Total loans $ 64,835 $ 114,396 $ 179,231 Allowance for loan losses: Individually evaluated for impairment $ — $ 179 $ 179 Collectively evaluated for impairment 660 961 1,621 Total allowance for loan losses $ 660 $ 1,140 $ 1,800 Commercial Residential Total December 31, 2016 Loans: Individually evaluated for impairment $ 140 $ 5,038 $ 5,178 Collectively evaluated for impairment 52,279 113,366 165,645 Total loans $ 52,419 $ 118,404 $ 170,823 Allowance for loan losses: Individually evaluated for impairment $ — $ — $ — Collectively evaluated for impairment 348 1,130 1,478 Total allowance for loan losses $ 348 $ 1,130 $ 1,478
Schedule of information regarding impaired loans	As of December 31, 2017 Principal Recorded Related Average Interest Loans with related allowance for loan losses: Residential real estate and consumer 1-4 family investor-owned $ 375 $ 330 $ 179 $ 312 $ 8 Loans with no related allowance for loan losses: Commercial Commercial and industrial 198 192 — 204 — Residential real estate and consumer 1-4 family owner-occupied 1,158 1,099 — 1,443 1 1-4 family investor-owned 716 683 — 1,289 24 Total loans with no related allowance 2,072 1,974 — 2,936 25 Total impaired loans $ 2,447 $ 2,304 $ 179 $ 3,248 $ 33 As of December 31, 2016 Principal Recorded Related Average Interest Loans with no related allowance for loan losses: Commercial Real estate $ 14 $ 14 $ — $ 14 $ 1 Commercial and industrial 129 126 — 135 — Residential real estate and consumer 1-4 family owner-occupied 2,363 2,104 — 2,310 20 1-4 family investor-owned 2,707 2,466 — 2,592 73 Multifamily 513 468 — 483 10 Total impaired loans $ 5,726 $ 5,178 $ — $ 5,534 $ 104
Schedule of loan aging information	​ ​ ​ Loans Past Due ​ ​ ​ ​ ​ ​ ​ ​ Nonaccrual ​ ​ ​ ​ Current ​ ​ 30 – 89 ​ ​ 90+ ​ ​ Total Loans ​ December 31, 2017 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Development ​ ​ ​ $ 1,498 ​ ​ ​ ​ $ — ​ ​ ​ ​ $ — ​ ​ ​ ​ $ 1,498 ​ ​ ​ ​ $ — ​ ​ Real estate ​ ​ ​ ​ 53,202 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 53,202 ​ ​ ​ ​ ​ — ​ ​ Commercial and industrial ​ ​ ​ ​ 9,946 ​ ​ ​ ​ ​ 75 ​ ​ ​ ​ ​ 114 ​ ​ ​ ​ ​ 10,135 ​ ​ ​ ​ ​ 114 ​ ​ Residential real estate and consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family owner-occupied ​ ​ ​ ​ 46,943 ​ ​ ​ ​ ​ 436 ​ ​ ​ ​ ​ 69 ​ ​ ​ ​ ​ 47,448 ​ ​ ​ ​ ​ 580 ​ ​ 1-4 family investor-owned ​ ​ ​ ​ 33,209 ​ ​ ​ ​ ​ 205 ​ ​ ​ ​ ​ 244 ​ ​ ​ ​ ​ 33,658 ​ ​ ​ ​ ​ 549 ​ ​ Multifamily ​ ​ ​ ​ 31,677 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 31,677 ​ ​ ​ ​ ​ — ​ ​ Consumer ​ ​ ​ ​ 1,607 ​ ​ ​ ​ ​ 6 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 1,613 ​ ​ ​ ​ ​ — ​ ​ Total ​ ​ ​ $ 178,082 ​ ​ ​ ​ $ 722 ​ ​ ​ ​ $ 427 ​ ​ ​ ​ $ 179,231 ​ ​ ​ ​ $ 1,243 ​ ​ December 31, 2016 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Development ​ ​ ​ $ 2,526 ​ ​ ​ ​ $ — ​ ​ ​ ​ $ — ​ ​ ​ ​ $ 2,526 ​ ​ ​ ​ $ — ​ ​ Real estate ​ ​ ​ ​ 42,276 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 42,276 ​ ​ ​ ​ ​ — ​ ​ Commercial and industrial ​ ​ ​ ​ 7,563 ​ ​ ​ ​ ​ 54 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 7,617 ​ ​ ​ ​ ​ 126 ​ ​ Residential real estate and consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family owner-occupied ​ ​ ​ ​ 48,134 ​ ​ ​ ​ ​ 1,743 ​ ​ ​ ​ ​ 407 ​ ​ ​ ​ ​ 50,284 ​ ​ ​ ​ ​ 1,698 ​ ​ 1-4 family investor-owned ​ ​ ​ ​ 33,896 ​ ​ ​ ​ ​ 170 ​ ​ ​ ​ ​ 567 ​ ​ ​ ​ ​ 34,633 ​ ​ ​ ​ ​ 827 ​ ​ Multifamily ​ ​ ​ ​ 31,905 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 31,905 ​ ​ ​ ​ ​ 248 ​ ​ Consumer ​ ​ ​ ​ 1,580 ​ ​ ​ ​ ​ 2 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ 1,582 ​ ​ ​ ​ ​ — ​ ​ Total ​ ​ ​ $ 167,880 ​ ​ ​ ​ $ 1,969 ​ ​ ​ ​ $ 974 ​ ​ ​ ​ $ 170,823 ​ ​ ​ ​ $ 2,899 ​ ​ ​
Schedule of nonperforming loans	As of December 31 2017 2016 Nonaccrual loans, other than troubled debt restructurings $ 274 $ 12 Nonaccrual loans, troubled debt restructurings 969 2,887 Total nonperforming loans (NPLs) 1,243 2,899 Restructured loans, accruing $ 661 $ 2,279
Schedule of classified as troubled debt restructurings	Number of Pre-Modification Post-Modification December 31, 2017 Commercial: Commercial and industrial 1 $ 88 $ 88 1 $ 88 $ 88 December 31, 2016 Commercial: Real estate 1 $ 14 $ 14 Commercial and industrial 1 127 127 Residential real estate and consumer: 1 – 4 family owner-occupied 3 329 329 1 – 4 family investor-owned 26 1,947 1,947 Multifamily 1 220 220 32 $ 2,637 $ 2,637
Schedule of reflects the carrying value of all purchased loans	Contractually Required Carrying Value Credit Non-Credit As of December 31, 2017 Commercial Real estate $ — $ 8,444 $ 8,380 Residential real estate and consumer 1-4 family owner-occupied 146 6,709 6,753 1-4 family investor-owned 149 10,558 10,591 Multifamily — 5,425 5,372 Consumer — — — Totals $ 295 $ 31,136 $ 31,096 Contractually Required Carrying Value Credit Non-Credit As of December 31, 2016 Commercial Real estate $ — $ 9,238 $ 9,113 Residential real estate and consumer 1-4 family owner-occupied 386 9,374 9,546 1-4 family investor-owned 418 13,164 13,294 Multifamily 248 6,463 6,599 Consumer — — — Totals $ 1,052 $ 38,239 $ 38,552
Schedule of carrying amount of accretable yield for purchased loans	For years ended 2017 2016 Beginning Balance $ 739 $ 1,193 Additions — — Accretion (405 ) (454 ) Ending Balance $ 334 $ 739
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of information regarding the credit quality indicators	Pass Special Substandard Doubtful Totals December 31, 2017 Development $ 1,498 $ — $ — $ — $ 1,498 Real estate 51,939 1,263 — — 53,202 Commercial and industrial 9,435 586 114 — 10,135 1-4 family investor owned 31,964 1,449 149 96 33,658 Multifamily 31,677 — — — 31,677 Totals $ 126,513 $ 3,298 $ 263 $ 96 $ 130,170 December 31, 2016 Development $ 2,526 $ — $ — $ — $ 2,526 Real estate 42,042 234 — — 42,276 Commercial and industrial 6,895 595 127 — 7,617 1-4 family investor owned 31,114 2,709 720 90 34,633 Multifamily 31,442 220 243 — 31,905 Totals $ 114,019 $ 3,758 $ 1,090 $ 90 $ 118,957
Residential real estate and consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of information regarding the credit quality indicators	Performing Non- Totals December 31, 2017 1-4 family owner-occupied 46,349 1,099 47,448 Consumer 1,613 — 1,613 $ 47,962 $ 1,099 $ 49,061 December 31, 2016 1-4 family owner-occupied 48,180 2,104 50,284 Consumer 1,582 — 1,582 $ 49,762 $ 2,104 $ 51,866

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Schedule of premises and equipment are stated at cost less accumulated depreciation	December 31, 2017 2016 Land $ 479 $ 765 Buildings 4,919 8,417 Leasehold improvements 153 — Furniture and equipment 1,233 1,318 Totals 6,784 10,500 Less: Accumulated depreciation 1,494 2,890 Premises and equipment, net $ 5,290 $ 7,610
Schedule of rent commitments, before considering renewal options that are present	2018 $ 165 2019 167 2020 153 2021 143 2022 146 Thereafter 735 $ 1,509
Schedule of minimum future rents receivable	2018 $ 95,569 2019 97,479 2020 99,428 2021 101,417 2022 103,446 Thereafter 167,224 $ 664,563

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2017
Deposits [Abstract]
Schedule of composition of deposits	December 31, 2017 2016 Non-interest bearing checking $ 22,271 $ 12,692 Interest bearing checking 4,017 7,928 Money market 54,472 58,513 Statement savings accounts 14,030 9,613 Health savings accounts 11,335 11,396 Certificates of deposit 76,788 84,497 Total $ 182,913 $ 184,639
Schedule of maturities of certificates of deposit	2018 $ 45,788 2019 17,333 2020 7,544 2021 4,488 2022 1,635 Total $ 76,788

FHLB Advances (Tables)

FHLB Advances (Tables)	12 Months Ended
	Dec. 31, 2017
Advances from Federal Home Loan Banks [Abstract]
Schedule of FHLB advances consist	2017 2016 Rates Amount Rates Amount Fixed rate, fixed term advances 1.42% – 1.92% 4,750 0.82% – 1.92% 8,777 Discount note floater — 0.45 % 2,500 Fixed term advances with floating spread 1.39% – 1.96% 8,000 .91% – 1.63% 10,000 Total $ 12,750 $ 21,277
Schedule of maturities of fixed term FHLB advances	Fixed Rate Advances Adjustable Rate Advances Total Amount Weighted Amount Weighted Amount 2018 — — 1.39 % 2,000 $ 2,000 2019 1.78 % 2,750 1.58 % 2,000 $ 4,750 2020 1.62 % 2,000 1.74 % 2,000 $ 4,000 2021 — — 1.96 % 2,000 $ 2,000 Total 1.71 % $ 4,750 1.67 % $ 8,000 $ 12,750

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Schedule of provision for income taxes	Years ended December 31, 2017 2016 Current Taxes (Benefit) Federal $ 192 $ 4 State 76 (5 ) 268 (1 ) Deferred Income Taxes Federal (311 ) (145 ) State (46 ) (10 ) (357 ) (155 ) Impact of Deferred Tax Asset Restatement 353 — Total Provision for Income Taxes $ 264 $ (156 )
Schedule of deferred tax assets and liabilities	As of December 31, 2017 2016 Deferred Tax Assets Allowance for loan losses $ 490 $ 582 Deferred compensation 120 176 Real estate owned — 10 Non-accrual interest 30 43 Purchase accounting 17 88 Federal net operating loss carryforwards — 123 State net operating loss carryforwards — 15 AMT credit 108 77 Unrealized loss on available for sale securities 133 67 Charitable contribution carryforward 235 — Other 11 44 Deferred Tax Assets $ 1,144 $ 1,225 Deferred Tax Liabilities Depreciation and amortization (17 ) (78 ) FHLB stock (30 ) (113 ) Other (7 ) (14 ) Deferred Tax Liabilities $ (54 ) $ (205 ) Net Deferred Tax Asset $ 1,090 $ 1,020
Schedule of sources of differences between income taxes at the federal statutory rate	Years ended December 31, 2017 2016 Amount % of Pretax Amount % of Pretax Reconciliation of statutory to effective rates Federal income taxes at statutory rate $ 27 34.00 % $ 5 34.00 % Adjustments for Tax exempt interest on municipal obligations (45 ) -57.69 % (84 ) -566.37 % State income taxes, net of federal income tax benefit 20 25.64 % (10 ) -66.67 % Increase in CSV of life insurance (67 ) -85.90 % (67 ) -445.83 % Impact of Deferred Tax Asset Restatement 353 452.56 % — 0.00 % Other (24 ) -30.77 % — 0.00 % Provision (credit) for income taxes $ 264 337.85 % $ (156 ) -1053.59 %

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Schedule of contract amounts of credit-related financial instruments	Notional Amount 2017 2016 Unused lines of credit Fixed 4,497 3,234 Variable 10,807 10,022 Undisbursed portion of loan proceeds, fixed 6,002 2,283 Standby letters of credit, variable 822 537

Related-Party Transactions (Tab

Related-Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Schedule of loans to directors, executive officers, and their affiliates	​ ​ ​ Years ended December 31, ​ ​ ​ ​ 2017 ​ ​ 2016 ​ Beginning balance ​ ​ ​ $ 2,853 ​ ​ ​ ​ $ 2,796 ​ ​ Adjustments for changes in directors and executive officers ​ ​ ​ ​ — ​ ​ ​ ​ ​ (140 ) ​ ​ New loans ​ ​ ​ ​ 9,976 ​ ​ ​ ​ ​ 545 ​ ​ Less: Participations sold ​ ​ ​ ​ (5,913 ) ​ ​ ​ ​ ​ — ​ ​ Repayments ​ ​ ​ ​ (219 ) ​ ​ ​ ​ ​ (348 ) ​ ​ Ending balance ​ ​ ​ $ 6,697 ​ ​ ​ ​ $ 2,853 ​ ​ ​

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Schedule of assets measured at fair value on a recurring basis	Recurring Fair Value Measurements Using Quoted Prices Significant Significant Total As of December 31, 2017 Assets: Available for sale securities: Obligations of the US government and US government sponsored agencies $ — $ 2,220 $ — $ 2,220 Obligations of states and political subdivisions — 13,137 — 13,137 Mortgage-backed securities — 33,467 — 33,467 Certificates of deposit — 3,997 — 3,997 Corporate debt securities — 5,191 — 5,191 Total $ — $ 58,012 $ — $ 58,012 As of December 31, 2016 Assets: Available for sale securities: Obligations of the US government and US government sponsored agencies $ — $ 3,919 $ — $ 3,919 Obligations of states and political subdivisions — 15,562 — 15,562 Mortgage-backed securities — 22,892 — 22,892 Certificates of deposit — 1,014 — 1,014 Corporate debt securities — 5,226 — 5,226 Total $ — $ 48,613 $ — $ 48,613
Schedule of fair value on a nonrecurring basis	Nonrecurring Fair Value Measurements Using Quoted Prices Significant Significant Total As of December 31, 2017 Assets: Loans $ — $ — $ 151 $ 151 Foreclosed assets — — 619 619 As of December 31, 2016 Assets: Foreclosed assets $ — $ — $ 667 $ 667
Schedule of presents quantitative information about nonrecurring Level 3 fair value measurements	Fair Valuation Technique Unobservable Input(s) Range/ As of December 31, 2017 Impaired loans $ 151 Market and/or Management discount 10% – 20% Foreclosed assets $ 619 Market and/or Management discount 10% – 20% As of December 31, 2016 Foreclosed assets $ 667 Market and/or Management discount 10% – 20%
Schedule of carrying value and estimated fair value of financial instruments	December 31, 2017 Carrying Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 11,813 $ 11,813 $ — $ — Available for sale securities 58,012 — 58,012 — Loans held for sale 109 — 109 — Loans 171,355 — — 171,729 Accrued interest receivable 782 782 — — Cash value of life insurance 6,558 — — 6,558 FHLB stock 514 — — 514 Financial liabilities: Deposits 182,913 106,125 — 76,099 Advance payments by borrowers for taxes and insurance 36 36 — — FHLB advances 12,750 — — 12,597 Accrued interest payable 37 37 — — December 31, 2016 Carrying Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 6,911 $ 6,911 $ — $ — Available for sale securities 48,613 — 48,613 — Loans held for sale 592 — 592 — Loans 166,974 — — 167,628 Accrued interest receivable 760 760 — — Cash value of life insurance 6,352 — — 6,352 FHLB stock 1,347 — — 1,347 Financial liabilities: Deposits 184,639 100,142 — 83,907 Advance payments by borrowers for taxes and insurance 33 33 — — FHLB advances 21,277 — — 21,139 Accrued interest payable 29 29 — —

Equity and Regulatory Matters (

Equity and Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2017
Regulatory Capital Requirements [Abstract]
Schedule of capital amounts and ratios	Actual For Capital Adequacy To Be Well Capitalized (Dollars in Thousands) Amount Ratio Amount Ratio Amount Ratio December 31, 2017: Leverage (Tier 1) $ 47,513 17.2 % $ 11,051 4.0 % $ 13,813 5.0 % Risk Based: Common Tier 1 47,513 26.8 7,973 4.5 11,517 6.5 Tier 1 47,513 26.8 10,631 6.0 14,174 8.0 Total 49,313 27.8 14,174 8.0 17,718 10.0 December 31, 2016: Leverage (Tier 1) $ 34,052 13.9 % $ 9,778 4.0 % $ 12,222 5.0 % Risk Based: Common Tier 1 34,052 20.9 7,344 4.50 10,608 6.50 Tier 1 34,052 20.9 9,792 6.00 13,056 8.00 Total 35,530 21.8 13,056 8.00 16,320 10.00

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of estimated future amortization of the core deposit premium intangible asset	As of 2018 $ 16 2019 16 2020 16 2021 16 2022 16

Employee Stock Ownership Plan (

Employee Stock Ownership Plan (Tables)	12 Months Ended
	Dec. 31, 2017
Employee Stock Ownership Plan (ESOP), Shares in ESOP [Abstract]
Schedule of shares are committed to be released from collateral and allocated to active participants	2017 Shares committed to be released and allocated to participants 2,947 Total unallocated shares 256,263 Total ESOP shares 259.210

Summary of Significant Accoun42

Summary of Significant Accounting Policies (Details Textuals) - USD ($) $ / shares in Units, $ in Thousands	Oct. 10, 2017	Dec. 31, 2017	Dec. 31, 2016
Significant Accounting Policies [Line Items]
Common stock shares	2,950,625
Amount of reorganization costs		$ 1,394
Provision (credit) for income taxes		264	$ (156)
Reclassification adjustments out of other comprehensive loss | Gains realized on sales of securities available
Significant Accounting Policies [Line Items]
Provision (credit) for income taxes		$ 5	$ 51
FFBW Community Foundation
Significant Accounting Policies [Line Items]
Common stock shares	25,000
Sale of stock, price per share	$ 10
Percentage of common stock subscribe to adopt employee stock ownership plan	3.92%
Percentage of common stock outstanding to bank eligible members	45.00%
Percentage of common stock to be outstanding upon completion of the reorganization and stock issuance	55.00%
FFBW, MHC
Significant Accounting Policies [Line Items]
Common stock shares	3,636,875
Percentage of common stock outstanding to bank eligible members	55.00%

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	[1]	Dec. 31, 2016	[2]
Earnings Per Share [Abstract]
Net income (loss)	$ (186)		$ 171
Basic potential common shares
Weighted average shares outstanding	6,612,500
Weighted average unallocated Employee Stock Ownership Plan Shares	(257,245)
Basic weighted average shares outstanding	6,355,255
Dilutive potential common shares	0
Diluted weighted average shares outstanding	6,355,255
Basic earnings (loss) per share (in dollars per share)	$ (0.03)
Diluted earnings (loss) per share (in dollars per share)	$ (0.03)
[1]	Earnings (loss) per share for the year ended December 31, 2017 includes income attributed to the period prior to the initial public offering for the common shares issued.
[2]	Earnings (loss) per share for the year ended December 31, 2016 is not applicable because the public offering was completed in October 2017.

Cash and Due from Banks (Detail

Cash and Due from Banks (Detail Textuals) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Cash and Due from Banks [Abstract]
Reserve balances with Federal Reserve Bank	$ 0	$ 0

Available for Sale Securities -

Available for Sale Securities - Amortized costs and fair values of available for sale securities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 58,392	$ 48,805
Gross Unrealized Gains	164	272
Gross Unrealized Losses	(544)	(464)
Estimated Fair Value	58,012	48,613
Obligations of the US government and US government sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,211	3,885
Gross Unrealized Gains	11	36
Gross Unrealized Losses	(2)	(2)
Estimated Fair Value	2,220	3,919
Obligations of states and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	13,102	15,606
Gross Unrealized Gains	104	104
Gross Unrealized Losses	(69)	(148)
Estimated Fair Value	13,137	15,562
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	33,908	23,155
Gross Unrealized Gains	14	39
Gross Unrealized Losses	(455)	(302)
Estimated Fair Value	33,467	22,892
Certificates of deposit
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	4,000	1,000
Gross Unrealized Gains	6	17
Gross Unrealized Losses	(9)	(3)
Estimated Fair Value	3,997	1,014
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	5,171	5,159
Gross Unrealized Gains	29	76
Gross Unrealized Losses	(9)	(9)
Estimated Fair Value	$ 5,191	$ 5,226

Available for Sale Securities46

Available for Sale Securities - Portion of gross unrealized losses (Details 1) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	$ 31,275	$ 25,027
Less than 12 months, Unrealized Losses	(255)	(438)
12 months or more, Fair Value	12,180	1,793
12 months or more, Unrealized Losses	(289)	(26)
Total, Fair Value	43,455	26,820
Total, Unrealized Losses	(544)	(464)
Obligations of the US government and US government sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	235	733
Less than 12 months, Unrealized Losses	(2)	(1)
12 months or more, Fair Value	0	179
12 months or more, Unrealized Losses	0	(1)
Total, Fair Value	235	912
Total, Unrealized Losses	(2)	(2)
Obligations of states and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	3,180	7,087
Less than 12 months, Unrealized Losses	(23)	(148)
12 months or more, Fair Value	2,660	0
12 months or more, Unrealized Losses	(46)	0
Total, Fair Value	5,840	7,087
Total, Unrealized Losses	(69)	(148)
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	22,685	15,370
Less than 12 months, Unrealized Losses	(213)	(278)
12 months or more, Fair Value	9,270	1,365
12 months or more, Unrealized Losses	(242)	(24)
Total, Fair Value	31,955	16,735
Total, Unrealized Losses	(455)	(302)
Certificates of deposit
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	2,492	247
Less than 12 months, Unrealized Losses	(9)	(3)
12 months or more, Fair Value	0	0
12 months or more, Unrealized Losses	0	0
Total, Fair Value	2,492	247
Total, Unrealized Losses	(9)	(3)
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	2,683	1,590
Less than 12 months, Unrealized Losses	(8)	(8)
12 months or more, Fair Value	250	249
12 months or more, Unrealized Losses	(1)	(1)
Total, Fair Value	2,933	1,839
Total, Unrealized Losses	$ (9)	$ (9)

Available for Sale Securities47

Available for Sale Securities - Amortized cost and fair value of held to maturity securities by contractual maturity (Details 2) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Amortized Cost
Due in one year or less	$ 0
Due after one year through 5 years	9,412
Due after 5 years through 10 years	7,679
Due after 10 years	7,393
Subtotal	24,484
Mortgage-backed securities	33,908
Amortized Cost	58,392	$ 48,805
Fair Value
Due in one year or less	0
Due after one year through 5 years	9,439
Due after 5 years through 10 years	7,703
Due after 10 years	7,403
Subtotal	24,545
Mortgage-backed securities	33,467
Total	$ 58,012	$ 48,613

Available for Sale Securities48

Available for Sale Securities (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Proceeds from sale of securities	$ 6,856	$ 9,485
Gross gains	86	133
Gross losses	$ (66)	$ (4)

Available for Sale Securities49

Available for Sale Securities (Detail Textuals)	12 Months Ended
	Dec. 31, 2017Security
Investments, Debt and Equity Securities [Abstract]
Number of securities with aggregate depreciation	100
Percentage of aggregate depreciation amortized cost basis	2.00%

Loans - Major classifications o

Loans - Major classifications of loans (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	$ 179,231	$ 170,823
Deferred loan fees	(74)	(88)
Loans in process	(6,002)	(2,283)
Allowance for loan losses	(1,800)	(1,478)	$ (1,551)
Net Loans	171,355	166,974
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	64,835	52,419
Allowance for loan losses	(660)	(348)	(497)
Commercial | Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	1,498	2,526
Commercial | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	53,202	42,276
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	10,135	7,617
Residential real estate and consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	114,396	118,404
Allowance for loan losses	(1,140)	(1,130)	$ (1,054)
Residential real estate and consumer | 1-4 family owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	47,448	50,284
Residential real estate and consumer | 1-4 family investor-owned
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	33,658	34,633
Allowance for loan losses	(82)
Residential real estate and consumer | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	31,677	31,905
Residential real estate and consumer | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	$ 1,613	$ 1,582

Loans - Analysis of allowance f

Loans - Analysis of allowance for loan losses (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 1,478	$ 1,551
Provision for loan losses	419	844
Loans charged off	(133)	(917)
Recoveries of loans previously charged off	36	0
Total ending allowance balance	1,800	1,478
Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	348	497
Provision for loan losses	312	(149)
Loans charged off	0	0
Recoveries of loans previously charged off	0	0
Total ending allowance balance	660	348
Residential real estate and consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,130	1,054
Provision for loan losses	107	993
Loans charged off	(133)	(917)
Recoveries of loans previously charged off	36	0
Total ending allowance balance	$ 1,140	$ 1,130

Loans - Analysis for loans eval

Loans - Analysis for loans evaluated for impairment (Details 2) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 2,304	$ 5,178
Collectively evaluated for impairment	176,927	165,645
Total loans	179,231	170,823
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	192	140
Collectively evaluated for impairment	64,643	52,279
Total loans	64,835	52,419
Residential real estate and consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	2,112	5,038
Collectively evaluated for impairment	112,284	113,366
Total loans	$ 114,396	$ 118,404

Loans - Analysis for allowance

Loans - Analysis for allowance for loan losses evaluated for impairment (Details 3) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 179	$ 0
Collectively evaluated for impairment	1,621	1,478
Total allowance for loan losses	1,800	1,478	$ 1,551
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	660	348
Total allowance for loan losses	660	348	497
Residential real estate and consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	179	0
Collectively evaluated for impairment	961	1,130
Total allowance for loan losses	$ 1,140	$ 1,130	$ 1,054

Loans - Impaired financing rece

Loans - Impaired financing receivable (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Loans with related allowance for loan losses:
Related Allowance	$ 179	$ 0
Loans with no related allowance for loan losses:
Principal Balance	2,072
Recorded Investment	1,974
Average Investment	2,936
Interest Recognized	25
Loans with and no related allowance for loan losses:
Principal Balance	2,447	5,726
Recorded Investment	2,304	5,178
Related Allowance	179	0
Average Investment	3,248	5,534
Interest Recognized	33	104
Commercial | Real estate
Loans with no related allowance for loan losses:
Principal Balance		14
Recorded Investment		14
Average Investment		14
Interest Recognized		1
Commercial | Commercial and industrial
Loans with no related allowance for loan losses:
Principal Balance	198	129
Recorded Investment	192	126
Average Investment	204	135
Interest Recognized	0	0
Residential real estate and consumer | 1-4 family owner-occupied
Loans with no related allowance for loan losses:
Principal Balance	1,158	2,363
Recorded Investment	1,099	2,104
Average Investment	1,443	2,310
Interest Recognized	1	20
Residential real estate and consumer | 1-4 family investor-owned
Loans with related allowance for loan losses:
Principal Balance	375
Recorded Investment	330
Related Allowance	179
Average Investment	312
Interest Recognized	8
Loans with no related allowance for loan losses:
Principal Balance	716	2,707
Recorded Investment	683	2,466
Average Investment	1,289	2,592
Interest Recognized	24	73
Loans with and no related allowance for loan losses:
Related Allowance	$ 179
Residential real estate and consumer | Multifamily
Loans with no related allowance for loan losses:
Principal Balance		513
Recorded Investment		468
Average Investment		483
Interest Recognized		$ 10

Loans - Information regarding c

Loans - Information regarding credit quality indicators for commercial loans by class (Details 5) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	$ 130,170	$ 118,957
Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	126,513	114,019
Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	3,298	3,758
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	263	1,090
Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	96	90
Commercial | Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	1,498	2,526
Commercial | Development | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	1,498	2,526
Commercial | Development | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	0	0
Commercial | Development | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	0	0
Commercial | Development | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	0	0
Commercial | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	53,202	42,276
Commercial | Real estate | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	51,939	42,042
Commercial | Real estate | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	1,263	234
Commercial | Real estate | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	0	0
Commercial | Real estate | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	0	0
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	10,135	7,617
Commercial | Commercial and industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	9,435	6,895
Commercial | Commercial and industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	586	595
Commercial | Commercial and industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	114	127
Commercial | Commercial and industrial | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	0	0
Residential real estate and consumer | 1-4 family investor-owned
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	33,658	34,633
Residential real estate and consumer | 1-4 family investor-owned | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	31,964	31,114
Residential real estate and consumer | 1-4 family investor-owned | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	1,449	2,709
Residential real estate and consumer | 1-4 family investor-owned | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	149	720
Residential real estate and consumer | 1-4 family investor-owned | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	96	90
Residential real estate and consumer | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	31,677	31,905
Residential real estate and consumer | Multifamily | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	31,677	31,442
Residential real estate and consumer | Multifamily | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	0	220
Residential real estate and consumer | Multifamily | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	0	243
Residential real estate and consumer | Multifamily | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by credit quality indicators	$ 0	$ 0

Loans - Information regarding56

Loans - Information regarding credit quality indicators for residential real estate and consumer loans by class (Details 6) - Residential real estate and consumer - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by performance or non-performance status.	$ 49,061	$ 51,866
Performing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by performance or non-performance status.	47,962	49,762
Non-performing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by performance or non-performance status.	1,099	2,104
1-4 family owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by performance or non-performance status.	47,448	50,284
1-4 family owner-occupied | Performing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by performance or non-performance status.	46,349	48,180
1-4 family owner-occupied | Non-performing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by performance or non-performance status.	1,099	2,104
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by performance or non-performance status.	1,613	1,582
Consumer | Performing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by performance or non-performance status.	1,613	1,582
Consumer | Non-performing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable by performance or non-performance status.	$ 0	$ 0

Loans - Loan aging information

Loans - Loan aging information (Details 7) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	$ 178,082	$ 167,880
Loans Past Due	179,231	170,823
Nonaccrual Loans	1,243	2,899
Loans Past Due 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	729	1,969
Loans Past Due 90+ Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	427	974
Commercial | Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	1,498	2,526
Loans Past Due	1,498	2,526
Nonaccrual Loans	0	0
Commercial | Development | Loans Past Due 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	0	0
Commercial | Development | Loans Past Due 90+ Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	0	0
Commercial | Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	53,202	42,276
Loans Past Due	53,202	42,276
Nonaccrual Loans	0	0
Commercial | Real Estate | Loans Past Due 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	0	0
Commercial | Real Estate | Loans Past Due 90+ Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	0	0
Commercial | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	9,946	7,563
Loans Past Due	10,135	7,617
Nonaccrual Loans	114	126
Commercial | Commercial and industrial | Loans Past Due 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	75	54
Commercial | Commercial and industrial | Loans Past Due 90+ Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	114	0
Residential real estate and consumer | 1-4 family owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	46,943	48,134
Loans Past Due	47,448	50,284
Nonaccrual Loans	580	1,698
Residential real estate and consumer | 1-4 family owner-occupied | Loans Past Due 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	436	1,743
Residential real estate and consumer | 1-4 family owner-occupied | Loans Past Due 90+ Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	69	407
Residential real estate and consumer | 1-4 family investor-owned
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	33,209	33,896
Loans Past Due	33,658	34,633
Nonaccrual Loans	549	827
Residential real estate and consumer | 1-4 family investor-owned | Loans Past Due 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	205	170
Residential real estate and consumer | 1-4 family investor-owned | Loans Past Due 90+ Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	244	567
Residential real estate and consumer | Multifamily
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	31,677	31,905
Loans Past Due	31,677	31,905
Nonaccrual Loans	0	248
Residential real estate and consumer | Multifamily | Loans Past Due 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	0	0
Residential real estate and consumer | Multifamily | Loans Past Due 90+ Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	0	0
Residential real estate and consumer | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	1,607	1,580
Loans Past Due	1,613	1,582
Nonaccrual Loans	0	0
Residential real estate and consumer | Consumer | Loans Past Due 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	6	2
Residential real estate and consumer | Consumer | Loans Past Due 90+ Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due	$ 0	$ 0

Loans - Nonperforming loans (De

Loans - Nonperforming loans (Details 8) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Receivables [Abstract]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	$ 274	$ 12
Nonaccrual loans, troubled debt restructurings	969	2,887
Total nonperforming loans (NPLs)	1,243	2,899
Restructured loans, accruing	$ 661	$ 2,279

Loans - New modifications of lo

Loans - New modifications of loans classified as troubled debt restructurings (Details 9) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Loan	Dec. 31, 2016USD ($)Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | Loan	1	32
Pre-Modification Investment	$ 88	$ 2,637
Post-Modification Investment	$ 88	$ 2,637
Commercial | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | Loan		1
Pre-Modification Investment		$ 14
Post-Modification Investment		$ 14
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | Loan	1	1
Pre-Modification Investment	$ 88	$ 127
Post-Modification Investment	$ 88	$ 127
Residential real estate and consumer | 1-4 family owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | Loan		3
Pre-Modification Investment		$ 329
Post-Modification Investment		$ 329
Residential real estate and consumer | 1-4 family investor-owned
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | Loan		26
Pre-Modification Investment		$ 1,947
Post-Modification Investment		$ 1,947
Residential real estate and consumer | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | Loan		1
Pre-Modification Investment		$ 220
Post-Modification Investment		$ 220

Loans - Reflects the carrying v

Loans - Reflects the carrying value of all purchased loans (Details 10) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually Required Payments Receivable, Credit Impaired	$ 295	$ 1,052
Contractually Required Payments Receivable, Non-Credit Impaired	31,136	38,239
Carrying Value of Purchased Loans	31,096	38,552
Commercial | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually Required Payments Receivable, Credit Impaired	0	0
Contractually Required Payments Receivable, Non-Credit Impaired	8,444	9,238
Carrying Value of Purchased Loans	8,380	9,113
Residential real estate and consumer | 1-4 family owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually Required Payments Receivable, Credit Impaired	146	386
Contractually Required Payments Receivable, Non-Credit Impaired	6,709	9,374
Carrying Value of Purchased Loans	6,753	9,546
Residential real estate and consumer | 1-4 family investor-owned
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually Required Payments Receivable, Credit Impaired	149	418
Contractually Required Payments Receivable, Non-Credit Impaired	10,558	13,164
Carrying Value of Purchased Loans	10,591	13,294
Residential real estate and consumer | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually Required Payments Receivable, Credit Impaired	0	248
Contractually Required Payments Receivable, Non-Credit Impaired	5,425	6,463
Carrying Value of Purchased Loans	5,372	6,599
Residential real estate and consumer | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually Required Payments Receivable, Credit Impaired	0	0
Contractually Required Payments Receivable, Non-Credit Impaired	0	0
Carrying Value of Purchased Loans	$ 0	$ 0

Loans - Change in carrying amou

Loans - Change in carrying amount of accretable yield for purchased loans (Details 11) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Beginning Balance	$ 739	$ 1,193
Additions	0	0
Accretion	(405)	(454)
Ending Balance	$ 334	$ 739

Loans (Detail Textuals)

Loans (Detail Textuals) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Loan	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Deposit accounts in an overdraft position which are reclassified as loans	$ 2	$ 3
Loans commitment to lend for finance costs relating to the disposal of several properties	$ 50
Number of loans commitment to lend for finance costs relating to the disposal of several properties | Loan	1
Specific reserves for loan losses recognized	$ 0
Pre-modification recorded investment	88	2,637
Allowance for loan and lease losses	1,800	1,478	$ 1,551
Contractually required payments receivable, credit impaired	295	1,052
Contractually required payments receivable, non-credit impaired	31,136	38,239
Carrying value of purchased loans	31,096	38,552
Remaining discount on loans purchased	334	739	1,193
Residential real estate and consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	1,140	1,130	$ 1,054
Residential real estate and consumer | 1-4 family owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Pre-modification recorded investment		329
Contractually required payments receivable, credit impaired	146	386
Contractually required payments receivable, non-credit impaired	6,709	9,374
Carrying value of purchased loans	$ 6,753	9,546
Residential real estate and consumer | 1-4 family investor-owned
Accounts, Notes, Loans and Financing Receivable [Line Items]
Pre-modification recorded investment		1,947
Number of contracts | Loan	2
Amount of troubled debt restructurings defaulted	$ 331
Allowance for loan and lease losses	82
Contractually required payments receivable, credit impaired	149	418
Contractually required payments receivable, non-credit impaired	10,558	13,164
Carrying value of purchased loans	$ 10,591	$ 13,294

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Totals	$ 6,784	$ 10,500
Less: Accumulated depreciation	1,494	2,890
Premises and equipment, net	5,290	7,610
Land
Property, Plant and Equipment [Line Items]
Totals	479	765
Buildings
Property, Plant and Equipment [Line Items]
Totals	4,919	8,417
Leasehold improvements
Property, Plant and Equipment [Line Items]
Totals	153	0
Furniture and equipment
Property, Plant and Equipment [Line Items]
Totals	$ 1,233	$ 1,318

Premises and Equipment (Detai64

Premises and Equipment (Details 1) $ in Thousands	Dec. 31, 2017USD ($)
Property, Plant and Equipment [Abstract]
2,018	$ 165
2,019	167
2,020	153
2,021	143
2,022	146
Thereafter	735
Total	$ 1,509

Premises and Equipment (Detai65

Premises and Equipment (Details 2) $ in Thousands	Dec. 31, 2017USD ($)
Property, Plant and Equipment [Abstract]
2,018	$ 95,569
2,019	97,479
2,020	99,428
2,021	101,417
2,022	103,446
Thereafter	167,224
Total	$ 664,563

Premises and Equipment (Detail

Premises and Equipment (Detail Textuals) $ in Thousands	1 Months Ended	12 Months Ended
	Jul. 27, 2017USD ($)	Dec. 31, 2017USD ($)Building	Dec. 31, 2016USD ($)
Property, Plant and Equipment [Line Items]
Depreciation expense		$ 460	$ 473
Numbers of building sold and leased back | Building		2
Lease term of buildings		ten-year
Rent expense for all operating leases		$ 46	$ 0
Charitable donation of former branch office located in downtown Waukesha	$ 273
The Bay View building
Property, Plant and Equipment [Line Items]
Proceeds from sale and lease back of buildings		700
Gains (loss) from sale and lease back of buildings		(8)
The Racine Avenue building
Property, Plant and Equipment [Line Items]
Proceeds from sale and lease back of buildings		1,200
Gains (loss) from sale and lease back of buildings		$ 59

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deposits [Abstract]
Non-interest bearing checking	$ 22,271	$ 12,692
Interest bearing checking	4,017	7,928
Money market	54,472	58,513
Statement savings accounts	14,030	9,613
Health savings accounts	11,335	11,396
Certificates of deposit	76,788	84,497
Total	$ 182,913	$ 184,639

Deposits (Details 1)

Deposits (Details 1) $ in Thousands	Dec. 31, 2017USD ($)
Deposits [Abstract]
2,018	$ 45,788
2,019	17,333
2,020	7,544
2,021	4,488
2,022	1,635
Total	$ 76,788

Deposits (Detail Textuals)

Deposits (Detail Textuals) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deposits [Abstract]
Certificates of deposit exceed FDIC insurance limit	$ 12,424	$ 8,385

FHLB Advances (Details)

FHLB Advances (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Federal Home Loan Bank, Advances [Line Items]
Fixed rate, fixed term advances, Amount	$ 4,750	$ 8,777
Discount note floater, Rate		0.45%
Discount note floater, Amount	0	$ 2,500
Fixed term advances with floating spread, Amount	8,000	10,000
Total	$ 12,750	$ 21,277
Minimum
Federal Home Loan Bank, Advances [Line Items]
Fixed rate, fixed term advances, Rates	1.42%	0.82%
Fixed term advances with floating spread, Rate	1.39%	0.91%
Maximum
Federal Home Loan Bank, Advances [Line Items]
Fixed rate, fixed term advances, Rates	1.92%	1.92%
Fixed term advances with floating spread, Rate	1.96%	1.63%

FHLB Advances (Details 1)

FHLB Advances (Details 1) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fixed Rate Advances Amount
2,018	$ 0
2,019	2,750
2,020	2,000
2,021	0
Total	4,750	$ 8,777
Adjustable Rate Advances Amount
2,018	2,000
2,019	2,000
2,020	2,000
2,021	2,000
Total	8,000
Total Amount
2,018	2,000
2,019	4,750
2,020	4,000
2,021	2,000
Total	$ 12,750	$ 21,277
Weighted Average
Fixed Rate Advances Weighted Average Rate
2,018	0.00%
2,019	1.78%
2,020	1.62%
2,021	0.00%
Total	1.71%
Adjustable Rate Advances Weighted Average Rate
2,018	1.39%
2,019	1.58%
2,020	1.74%
2,021	1.96%
Total	1.67%

FHLB Advances (Detail Textuals)

FHLB Advances (Detail Textuals) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Advances from Federal Home Loan Banks [Abstract]
FHLB advances of 1-4 family, multifamily, and commercial real estate loans	$ 135,760	$ 144,859
FHLB stock owned	514	1,347
Amount of available and unused portion of borrowing agreement	2,000	$ 13,400
Amount of fluctuating letter of credit	5,000
Amount of federal funds line of credit	$ 7,000

Employee Benefit Plan (Detail T

Employee Benefit Plan (Detail Textuals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Retirement Benefits [Abstract]
Percentage of employee contributions	100.00%
Percentage of annual compensation	4.00%
Expense charged to operations for employee benefit plan	$ 127	$ 162

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Current Taxes (Benefit)
Federal	$ 192	$ 4
State	76	(5)
Current Taxes (Benefit) Total	268	(1)
Deferred Income Taxes
Federal	(311)	(145)
State	(46)	(10)
Deferred Income Taxes Total	(357)	(155)
Impact of Deferred Tax Asset Restatement	353
Total Provision for Income Taxes	$ 264	$ (156)

Income Taxes (Details 1)

Income Taxes (Details 1) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred Tax Assets
Allowance for loan losses	$ 490	$ 582
Deferred compensation	120	176
Real estate owned	0	10
Non-accrual interest	30	43
Purchase accounting	17	88
Federal net operating loss carryforwards	0	123
State net operating loss carryforwards	0	15
AMT credit	108	77
Unrealized loss on available for sale securities	133	67
Charitable contribution carryforward	235	0
Other	11	44
Deferred Tax Assets	1,144	1,225
Deferred Tax Liabilities
Depreciation and amortization	(17)	(78)
FHLB stock	(30)	(113)
Other	(7)	(14)
Deferred Tax Liabilities	(54)	(205)
Net Deferred Tax Asset	$ 1,090	$ 1,020

Income Taxes (Details 2)

Income Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of statutory to effective rates
Federal income taxes at statutory rate Amount	$ 27	$ 5
Federal income taxes at statutory rate of pretax income	34.00%	34.00%
Adjustments for
Tax exempt interest on municipal obligations Amount	$ (45)	$ (84)
Tax exempt interest on municipal obligations percent of pretax income	(57.69%)	(566.37%)
State income taxes, net of federal income tax benefit Amount	$ 20	$ (10)
State income taxes, net of federal income tax benefit percent of pretax income	25.64%	(66.67%)
Increase in CSV of life insurance Amount	$ (67)	$ (67)
Increase in CSV of life insurance percent of pretax income	(85.90%)	(445.83%)
Impact of Deferred Tax Asset Restatement Amount	$ 353	$ 0
Impact of Deferred Tax Asset Restatement percent of pretax income	452.56%	0.00%
Other Amount	$ 24	$ 0
Other percent of pretax income	(30.77%)	0.00%
Total Provision for Income Taxes	$ 264	$ (156)
Provision (credit) for income taxes percent of pretax income	337.85%	(1053.59%)

Income Taxes (Detail Textuals)

Income Taxes (Detail Textuals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Operating Loss Carryforwards [Line Items]
US corporate income tax rate	34.00%	34.00%
Corporate income tax rate effective in 2018	21.00%
Reduction in net deferred tax asset	$ 353
Maximum
Operating Loss Carryforwards [Line Items]
US corporate income tax rate	35.00%
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryover		$ 270
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryover	$ 0	$ 362

Commitments and Contingencies78

Commitments and Contingencies (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Unused lines of credit | Fixed
Commitments And Contingencies [Line Items]
Contract amounts of credit-related financial instruments	$ 4,497	$ 3,234
Unused lines of credit | Variable
Commitments And Contingencies [Line Items]
Contract amounts of credit-related financial instruments	10,807	10,022
Undisbursed portion of loan proceeds | Fixed
Commitments And Contingencies [Line Items]
Contract amounts of credit-related financial instruments	6,002	2,283
Standby letters of credit | Variable
Commitments And Contingencies [Line Items]
Contract amounts of credit-related financial instruments	$ 822	$ 537

Commitments and Contingencies79

Commitments and Contingencies (Detail Textuals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Amount of contingently liable relating to loans sold with recourse	$ 3,647	$ 9,555
Recourse provisions expiry period	4 months

Related-Party Transactions (Det

Related-Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Related Party Transactions [Roll Forward]
Beginning balance	$ 2,853	$ 2,796
Adjustments for changes in directors and executive officers		(140)
New loans	9,976	545
Less: Participations sold	(5,913)
Repayments	(219)	(348)
Ending balance	$ 6,697	$ 2,853

Related-Party Transactions (D81

Related-Party Transactions (Detail Textuals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Related Party Transactions [Abstract]
Deposits from directors, executive officers, and their affiliates	$ 1,333	$ 1,167
Payment of fees to law firm	38	$ 81
Rent paid	16
Cash donated	$ 250,000
Shares donated	25,000

Foreclosed Assets (Detail Textu

Foreclosed Assets (Detail Textuals) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Loan	Dec. 31, 2016USD ($)Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Foreclosed assets	$ 619	$ 667
Amount of loans in process of foreclosure	165	307
Foreclosed Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Foreclosed assets		$ 667
Number of foreclosed assets | Loan		1
1-4 family owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Foreclosed assets	$ 619
Number of foreclosed assets | Loan	2

Fair Value Measurements - Fair

Fair Value Measurements - Fair value of assets measured at fair value on a recurring basis (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	$ 58,012	$ 48,613
Obligations of the US government and US government sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	2,220	3,919
Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	13,137	15,562
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	33,467	22,892
Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	3,997	1,014
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	5,191	5,226
Assets Measured at Fair Value | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Assets Measured at Fair Value | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	58,012	48,613
Assets Measured at Fair Value | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Recurring basis | Assets Measured at Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	58,012	48,613
Recurring basis | Assets Measured at Fair Value | Obligations of the US government and US government sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	2,220	3,919
Recurring basis | Assets Measured at Fair Value | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	13,137	15,562
Recurring basis | Assets Measured at Fair Value | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	33,467	22,892
Recurring basis | Assets Measured at Fair Value | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	3,997	1,014
Recurring basis | Assets Measured at Fair Value | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	5,191	5,226
Recurring basis | Assets Measured at Fair Value | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Recurring basis | Assets Measured at Fair Value | Level 1 | Obligations of the US government and US government sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Recurring basis | Assets Measured at Fair Value | Level 1 | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Recurring basis | Assets Measured at Fair Value | Level 1 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Recurring basis | Assets Measured at Fair Value | Level 1 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Recurring basis | Assets Measured at Fair Value | Level 1 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Recurring basis | Assets Measured at Fair Value | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	58,012	48,613
Recurring basis | Assets Measured at Fair Value | Level 2 | Obligations of the US government and US government sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	2,220	3,919
Recurring basis | Assets Measured at Fair Value | Level 2 | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	13,137	15,562
Recurring basis | Assets Measured at Fair Value | Level 2 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	33,467	22,892
Recurring basis | Assets Measured at Fair Value | Level 2 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	3,997	1,014
Recurring basis | Assets Measured at Fair Value | Level 2 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	5,191	5,226
Recurring basis | Assets Measured at Fair Value | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Recurring basis | Assets Measured at Fair Value | Level 3 | Obligations of the US government and US government sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Recurring basis | Assets Measured at Fair Value | Level 3 | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Recurring basis | Assets Measured at Fair Value | Level 3 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Recurring basis | Assets Measured at Fair Value | Level 3 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	0	0
Recurring basis | Assets Measured at Fair Value | Level 3 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets - Available for sale securities	$ 0	$ 0

Fair Value Measurements - Fai84

Fair Value Measurements - Fair value of assets measured at fair value on a nonrecurring basis (Details 1) - Nonrecurring basis - Assets Measured at Fair Value - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset	$ 619	$ 667
Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset	151
Level 1 | Foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset	0	0
Level 1 | Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset	0
Level 2 | Foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset	0	0
Level 2 | Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset	0
Level 3 | Foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset	619	$ 667
Level 3 | Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset	$ 151

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Quantitative information about nonrecurring Level 3 fair value measurements (Details 2) - Fair Value, Measurements, Nonrecurring - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Foreclosed assets
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	$ 619	$ 667
Valuation Technique	Market and/or income approach	Market and/or income approach
Unobservable Input	Management discount on appraised values	Management discount on appraised values
Foreclosed assets | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Management discount rate	10.00%	10.00%
Foreclosed assets | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Management discount rate	20.00%	20.00%
Impaired Loan
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	$ 151
Valuation Technique	Market and/or income approach
Unobservable Input	Management discount on appraised values
Impaired Loan | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Management discount rate	10.00%
Impaired Loan | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Management discount rate	20.00%

Fair Value Measurements - Carry

Fair Value Measurements - Carrying value and estimated fair value of financial instruments (Details 3) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Financial assets:
Available for sale securities	$ 58,012	$ 48,613
Carrying Value
Financial assets:
Cash and cash equivalents	11,813	6,911
Available for sale securities	58,012	48,613
Loans held for sale	109	592
Loans	171,355	166,974
Accrued interest receivable	782	760
Cash value of life insurance	6,558	6,352
FHLB stock	514	1,347
Financial liabilities:
Deposits	182,913	184,639
Advance payments by borrowers for taxes and insurance	36	33
FHLB advances	12,750	21,277
Accrued interest payable	37	29
Fair Value | Level 1
Financial assets:
Cash and cash equivalents	11,813	6,911
Available for sale securities	0	0
Loans held for sale	0	0
Loans	0	0
Accrued interest receivable	782	760
Cash value of life insurance	0	0
FHLB stock	0	0
Financial liabilities:
Deposits	106,125	100,142
Advance payments by borrowers for taxes and insurance	36	33
FHLB advances	0	0
Accrued interest payable	37	29
Fair Value | Level 2
Financial assets:
Cash and cash equivalents	0	0
Available for sale securities	58,012	48,613
Loans held for sale	109	592
Loans	0	0
Accrued interest receivable	0	0
Cash value of life insurance	0	0
FHLB stock	0	0
Financial liabilities:
Deposits	0	0
Advance payments by borrowers for taxes and insurance	0	0
FHLB advances	0	0
Accrued interest payable	0	0
Fair Value | Level 3
Financial assets:
Cash and cash equivalents	0	0
Available for sale securities	0	0
Loans held for sale	0	0
Loans	171,729	167,628
Accrued interest receivable	0	0
Cash value of life insurance	6,558	6,352
FHLB stock	514	1,347
Financial liabilities:
Deposits	76,099	83,907
Advance payments by borrowers for taxes and insurance	0	0
FHLB advances	12,597	21,139
Accrued interest payable	$ 0	$ 0

Fair Value Measurements (Detail

Fair Value Measurements (Detail Textuals) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Financing Receivable, Related Allowance	$ 179	$ 0
Residential real estate and consumer | 1-4 family investor-owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying amount of impaired loans receivable	330
Impaired Financing Receivable, Related Allowance	179
Foreclosed Real Estate | Nonrecurring basis | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset	619	$ 667
Loans | Nonrecurring basis | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset	$ 151

Equity and Regulatory Matters -

Equity and Regulatory Matters - Actual capital amounts and ratios (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Banking and Thrift [Abstract]
Leverage (Tier 1), Actual, Amount	$ 47,513	$ 34,052
Leverage (Tier 1), Actual, Ratio	17.20%	13.90%
Leverage (Tier 1), For Capital Adequacy Purposes, Amount	$ 11,051	$ 9,778
Leverage (Tier 1), For Capital Adequacy Purposes, Ratio	4.00%	4.00%
Leverage (Tier 1), To be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 13,813	$ 12,222
Leverage (Tier 1), To be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	5.00%	5.00%
Risk Based:
Common Tier 1, Actual, Amount	$ 47,513	$ 34,052
Common Tier 1, Actual, Ratio	26.80%	20.90%
Common Tier 1, For Capital Adequacy Purposes, Amount	$ 7,973	$ 7,344
Common Tier 1, For Capital Adequacy Purposes, Ratio	4.50%	4.50%
Common Tier 1, To be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 11,517	$ 10,608
Common Tier 1, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%
Tier 1, Actual, Amount	$ 47,513	$ 34,052
Tier 1, Actual, Ratio	26.80%	20.90%
Tier 1, For Capital Adequacy Purposes, Amount	$ 10,631	$ 9,792
Tier 1, For Capital Adequacy Purposes, Ratio	6.00%	6.00%
Tier 1, To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 14,174	$ 13,056
Tier 1, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	8.00%	8.00%
Total, Actual, Amount	$ 49,313	$ 35,530
Total, Actual, Ratio	27.80%	21.80%
Total, For Capital Adequacy Purposes, Amount	$ 14,174	$ 13,056
Total, For Capital Adequacy Purposes, Ratio	8.00%	8.00%
Total, To be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 17,718	$ 16,320
Total, To be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	10.00%	10.00%

Intangible Assets (Details)

Intangible Assets (Details) - Core Deposits $ in Thousands	Dec. 31, 2017USD ($)
Finite-Lived Intangible Assets [Line Items]
2,018	$ 16
2,019	16
2,020	16
2,021	16
2,022	$ 16

Intangible Assets (Detail Textu

Intangible Assets (Detail Textuals) - Core Deposits - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Intangible asset gross carrying amount	$ 161	$ 161
Accumulated amortization of Intangible asset	58	42
Aggregate amortization expense	$ 16	$ 16

Deferred Compensation (Detail T

Deferred Compensation (Detail Textuals) - Key officers - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred compensation liability	$ 442	$ 446
Deferred compensation agreements, compensation expense	$ 51	$ 132

Employee Stock Ownership Plan92

Employee Stock Ownership Plan (Details)	Dec. 31, 2017shares
Employee Stock Ownership Plan (ESOP), Shares in ESOP [Abstract]
Shares committed to be released and allocated to participants	2,947
Total unallocated shares	256,263
Total ESOP shares	259,210

Employee Stock Ownership Plan93

Employee Stock Ownership Plan (Detail Textuals) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)$ / sharesshares
Employee Stock Ownership Plan (ESOP), Shares in ESOP [Abstract]
Number of shares committed-to-be-released under Employee Stock Ownership Plan (ESOP) | shares	2,947
Average fair value of per share | $ / shares	$ 11
ESOP compensation expense | $	$ 32