Centrue Financial 10-K 2 Mar 17 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Feb. 28, 2017	Jun. 30, 2016
Document and Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Entity Registrant Name	CENTRUE FINANCIAL CORP
Entity Central Index Key	1,019,650
Trading Symbol	cfcb
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding		6,513,694
Entity Public Float			$ 61,492,150

Consolidated Balance Sheets

Consolidated Balance Sheets	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
ASSETS
Cash and cash equivalents	$ 22,507,000	$ 27,655,000
Securities available-for-sale	165,927,000	171,440,000
Restricted securities	9,860,000	9,116,000
Loans held for sale	0	735,000
Loans, net of allowance for loan loss: 2016 - $8,904; 2015 - $8,591	676,871,000	624,956,000
Branch assets held for sale	0	16,673,000
Bank-owned life insurance	35,986,000	35,103,000
Mortgage servicing rights	2,033,000	2,129,000
Premises and equipment, net	16,371,000	16,852,000
Intangible assets, net	0	880,000
Other real estate owned, net	5,042,000	8,401,000
Deferred tax assets, net	35,035,000	38,180,000
Other assets	8,147,000	9,098,000
Total assets	977,779,000	961,218,000
Deposits:
Non-interest-bearing	152,524,000	164,137,000
Interest-bearing	587,522,000	554,367,000
Total deposits	740,046,000	718,504,000
Federal funds purchased and securities sold under agreements to repurchase	11,168,000	18,730,000
Federal Home Loan Bank advances	85,000,000	76,000,000
Series B mandatory redeemable preferred stock	209,000	268,000
Subordinated debentures	10,310,000	20,620,000
Other liabilities	4,117,000	5,815,000
Total liabilities	850,850,000	839,937,000
Commitments and contingent liabilities	0	0
Stockholders' equity
Common stock	66,000	66,000
Surplus	140,664,000	140,609,000
Retained earnings (deficit)	3,029,000	(2,958,000)
Accumulated other comprehensive loss	(3,340,000)	(2,946,000)
Stockholders' equity before treasury stock	143,055,000	137,407,000
Treasury stock	(16,126,000)	(16,126,000)	[1]
Total stockholders' equity	126,929,000	121,281,000	[2]
Total liabilities and stockholders' equity	977,779,000	961,218,000
Series D Fixed Rate, Non-Cummulative Perpetual Preferred Stock
Stockholders' equity
Perpetual Preferred Stock	$ 2,636,000	$ 2,636,000
[1]	Share and per share amounts have been adjusted to reflect the Company's 1:30 reverse stock split effective May 29, 2015.
[2]	Share and per share amounts have been adjusted to reflect the Company's 1:30 reverse stock split effective May 29, 2015.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) $ in Thousands	Dec. 31, 2016USD ($)$ / sharesshares	Dec. 31, 2015USD ($)$ / sharesshares
Allowance for loan loss | $	$ 8,904	$ 8,591
Preferred stock authorized (in shares)	200,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01
Common stock authorized (in shares)	215,000,000	215,000,000
Common stock issued (in shares)	6,581,544	6,581,544
Treasury stock (in shares)	67,850	67,850	[1]
Series D Fixed Rate, Non-Cummulative Perpetual Preferred Stock
Preferred stock authorized (in shares)	2,636	2,636
Preferred stock issued (in shares)	2,636	2,636
Preferred stock, aggregate liquidation preference | $	$ 2,636	$ 2,636
[1]	Share and per share amounts have been adjusted to reflect the Company's 1:30 reverse stock split effective May 29, 2015.

Consolidated Statements of Inco

Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)$ / shares	Dec. 31, 2015USD ($)$ / shares
Interest income
Loans	$ 28,558	$ 25,619
Securities
Taxable	2,905	2,887
Exempt from federal income taxes	91	164
Federal funds sold and other	134	85
Total interest income	31,688	28,755
Interest expense
Deposits	1,357	1,227
Federal funds purchased and securities sold under agreements to repurchase	37	50
Federal Home Loan Bank advances	746	529
Series B mandatory redeemable preferred stock	14	16
Subordinated debentures	548	545
Notes payable	0	84
Total interest expense	2,702	2,451
Net interest income	28,986	26,304
Provision for loan losses	300	375
Net interest income after provision for loan losses	28,686	25,929
Noninterest income
Service charges	3,927	4,051
Mortgage banking income	1,175	1,240
Electronic banking services	2,536	2,545
Bank-owned life insurance	883	909
Securities gains, net	142	339
Income from real estate	330	619
Gain on sale of OREO	130	161
Gain on sale of branches	1,877	0
Gain on sale of other assets	102	0
Gain on extinguishment of debt	1,000	1,750
Other income	644	814
Noninterest income	12,746	12,428
Noninterest expense
Salaries and employee benefits	16,748	16,805
Occupancy, net	2,679	2,840
Furniture and equipment	1,093	1,028
Marketing	244	378
Supplies and printing	228	222
Telephone	831	816
Data processing	1,809	1,661
FDIC insurance	450	1,166
Loan processing and collection costs	390	705
OREO carrying costs	473	799
OREO valuation adjustment	137	291
Amortization of intangible assets	880	951
Other expenses	5,552	5,577
Noninterest expense	31,514	33,239
Income before income taxes	9,918	5,118
Income tax expense (benefit)	3,602	(37,484)
Net income	6,316	42,602
Preferred stock dividends	329	1,484
Discount on redemption of preferred stock	0	(13,668)
Net income for common stockholders	$ 5,987	$ 54,786
Basic earnings per common share (in dollars per share) | $ / shares	$ 0.92	$ 11.08	[1]
Diluted earnings per common share (in dollars per share) | $ / shares	$ 0.92	$ 11.08	[1]
Total comprehensive income:
Net income	$ 6,316	$ 42,602
Change in unrealized gains (losses) on securities available for sale	(503)	(1,127)
Reclassification adjustment for losses (gains) recognized in income	(142)	(339)
Net unrealized gains (loss)	(645)	(1,466)
Tax effect	(251)	(571)
Other comprehensive income (loss)	(394)	(895)
Total comprehensive income	$ 5,922	$ 41,707
[1]	Share and per share amounts have been adjusted to reflect the Company's 1:30 reverse stock split effective May 29, 2015.

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity Statement - USD ($) $ in Thousands		Total	Preferred StockSeries C Preferred Stock	Preferred StockSeries D Preferred Stock	Common Stock	Surplus	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance at Dec. 31, 2014		$ 30,328	$ 32,668	$ 2,636	$ 2	$ 78,955	$ (58,750)	$ (2,051)	$ (23,132)	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net proceeds from common stock offering - see Note 1		68,248			64	68,184
Preferred stock dividends		(478)					(478)
Deferred compensation distribution (1,003 shares)		15				(224)			239	[1]
Redemption of preferred stock - see Note 1		(19,000)	(32,668)				13,668
Restricted stock awards (40,443 shares)		461				(6,306)			6,767	[1]
Net income		42,602					42,602
Total comprehensive income		(895)						(895)
Ending balance at Dec. 31, 2015	[1]	121,281	0	2,636	66	140,609	(2,958)	(2,946)	(16,126)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred stock dividends		(329)					(329)
Forfeited stock options		(69)				(69)
Restricted stock unit expense		124				124
Net income		6,316					6,316
Total comprehensive income		(394)						(394)
Ending balance at Dec. 31, 2016		$ 126,929	$ 0	$ 2,636	$ 66	$ 140,664	$ 3,029	$ (3,340)	$ (16,126)	[1]
[1]	Share and per share amounts have been adjusted to reflect the Company's 1:30 reverse stock split effective May 29, 2015.

Consolidated Statements of Sto6

Consolidated Statements of Stockholders' Equity (Parenthetical)	May 29, 2015
Statement of Stockholders' Equity [Abstract]
Stock split conversion ratio	0.0333

Consolidated Statement of Cash

Consolidated Statement of Cash Flows $ in Thousands		12 Months Ended
		Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Cash flows from operating activities
Net income		$ 6,316	$ 42,602
Net cash (used in) provided by operating activities		10,655	6,466
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation		1,115	1,199
Amortization of intangible assets		880	951
Amortization of mortgage servicing rights, net		304	341
Amortization of bond premiums, net		1,649	1,396
Income tax valuation adjustment		0	(39,759)
Share based compensation		124	461
Provision for loan losses		300	375
Provision for deferred income taxes		3,388	1,579
Earnings on bank-owned life insurance		(883)	(909)
OREO valuation adjustment		137	291
Securities gains, net		(142)	(339)
Gain on sale of OREO		(130)	(161)
Gain on extinguishment of debt		(1,000)	(1,750)
Gain on sale of branches		(1,877)	0
Gain on sale of other assets		(102)	0
Proceeds from sales of loans held for sale		28,939	32,631
Origination of loans held for sale		(27,421)	(28,328)
Gain on sale of loans		(783)	(828)
Change in assets and liabilities
(Increase) decrease in other assets		122	338
Increase (decrease) in other liabilities		(281)	(3,624)
Cash flows from investing activities
Proceeds from paydowns of securities available for sale		42,102	31,928
Proceeds from calls and maturities		13,690	5,965
Proceeds from sales of securities available for sale		41,661	91,409
Purchases of securities available for sale		(94,035)	(167,840)
Redemption of Federal Reserve Bank stock		310	179
Purchase of Federal Home Loan Bank stock		0	(2,028)
Purchase of Federal Reserve Bank stock		(1,054)	(1,165)
Net increase in loans		(53,865)	(95,774)
Purchase of premises and equipment		(549)	(574)
Proceeds from sales of OREO		3,452	1,933
Sale of branches, net of premium received		(31,444)	0
Net cash (used in) provided by investing activities		(79,732)	(135,967)
Cash flows from financing activities
Net increase in deposits (1)	[1]	71,879	19,680
Net increase (decrease) in federal funds purchased and securities sold under agreements to repurchase		(7,562)	(7,961)
Net proceeds of advances from the Federal Home Loan Bank		9,000	56,000
Repayment of notes payable		0	(8,500)
Repurchase of subordinated debentures		(9,000)	0
Net proceeds from the issuance of common stock		0	68,248
Dividends paid on preferred stock		(329)	(478)
Net cash provided by (used in) financing activities		63,929	107,989
Cash and cash equivalents		(5,148)	(21,512)
Cash and cash equivalents
Beginning of period		27,655	49,167
End of period		22,507	27,655
Cash payments for
Interest		2,650	7,358
Income taxes		270	121
Transfers from loans to other real estate owned		43	292
Transfer from loan portfolio and sold in secondary market		0	3,848
Loan transfers to branch assets held for sale		1,607	11,524
Premises and equipment transferred to branch assets held for sale		0	5,149
Series B Preferred Stock
Cash flows from financing activities
Redemption of Series C Cumulative Perpetual Preferred Stock		(59)	0
Series C Preferred Stock
Cash flows from financing activities
Redemption of Series C Cumulative Perpetual Preferred Stock		$ 0	$ (19,000)
[1]	Deposits impacted by branch sales during 2016. See Note 19 for additional information.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Centrue Financial Corporation is a bank holding company organized under the laws of the State of Delaware. When we use the terms “Centrue,” the “Company,” “we,” “us,” and “our,” we mean Centrue Financial Corporation, a Delaware Corporation, and its consolidated subsidiary. When we use the term the “Bank,” we are referring to our wholly owned banking subsidiary, Centrue Bank. The Company and the Bank provide a full range of banking services to individual and corporate customers located in markets extending from the far western and southern suburbs of the Chicago metropolitan area across Central Illinois down to the metropolitan St. Louis area. These services include demand, time, and savings deposits; business and consumer lending; and mortgage banking. The Company is subject to competition from other financial institutions and nonfinancial institutions providing financial services. Additionally, the Company and the Bank are subject to regulations of certain regulatory agencies and undergo periodic examinations by those regulatory agencies. Principles of Consolidation The consolidated financial statements include the accounts and results of operations of the Company and its subsidiary after elimination of all significant intercompany accounts and transactions. Use of Estimates The accounting and reporting policies of the Company and its subsidiaries conform to U.S. generally accepted accounting principles ("GAAP") and general practice within the banking industry. The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Basis of Presentation The accounting and reporting policies of the Company conform to generally accepted accounting principles in the United States of America. The Company’s December 31, 2016 and 2015 financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of its financial position and results of operations for the periods presented. All such adjustments are of a normal and recurring nature. Reverse Stock Split Common shares and per share amounts for all periods shown have been restated to reflect the impact of the 1 : 30 reverse stock split the Company completed effective May 29, 2015. Cash flows Cash and cash equivalents includes cash, deposits with other financial institutions with maturities under 90 days, and federal funds sold. Net cash flows are reported for customer loan and deposit transactions, repurchase agreements, FHLB advances and federal funds purchased. Securities Available-for-sale . 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. Available-for-sale securities are carried at fair value with unrealized gains and losses, net of related deferred income taxes, recorded in stockholders’ equity as a separate component of other comprehensive income. 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 considerations, and other similar factors. Purchases and sales of securities are recognized on a trade date basis. Realized securities gains or losses are reported in securities gains (losses), net in the Consolidated Statement of Income. The cost of securities sold is based on the specific identification method. On a quarterly basis, the Company makes an assessment to determine whether there have been any events or circumstances to indicate that a security for which there is an unrealized loss is impaired on an other-than-temporary (“OTTI”) basis. In evaluating other-than-temporary impairment, the Company considers many factors including the severity and duration of the impairment; the financial condition and near-term prospects of the issuer, which for debt securities considers external credit ratings and recent downgrades; whether it intends to sell, or it is more likely than not that it will be required to sell, a security in an unrealized loss position before recovery of its amortized cost basis. Securities for which there is an unrealized loss that is deemed to be OTTI are written down to fair value with the write-down recorded as a realized loss and included in net impairment on securities, but only to the extent the impairment is related to credit losses. The amount of the impairment related to other factors is recognized in other comprehensive income unless management intends to sell the security or believes it is more likely than not that it will be required to sell the security prior to full recovery. Interest income is reported net of amortization of premiums and accretion of discounts. Amortization of purchase premium or discount is included in interest income. Premiums and discounts on securities are amortized over the level-yield method without anticipating prepayments except for mortgage backed securities where prepayments are anticipated. Restricted Securities. Federal Home Loan Bank stock and Federal Reserve Bank stock are carried at cost and are included in restricted stock. The Corporation is required to maintain these equity securities as a member of both the Federal Home Loan Bank and the Federal Reserve System, and in amounts as required by these institutions. These equity securities are “restricted” in that they can only be sold back to the respective institutions or another member institution at par. Therefore, they are less liquid than other tradable equity securities and no impairment has been recorded during 2016 and 2015 . Both cash and stock dividends are reported as income. Loans Held for Sale Mortgage loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or fair value, as determined by outstanding commitments from investors. Net unrealized losses, if any, are recorded as a valuation allowance and charged to earnings. Mortgage loans held for sale are sold with either servicing rights retained or servicing rights released. When retaining the servicing rights, the carrying value of mortgage loans sold is reduced by the cost allocated to the servicing right. Gains and losses on sales of mortgage loans are based on the difference between the selling price and the carrying value of the related loan sold. When selling service released, the gain or loss is determined by comparing the selling price to the value of the mortgage sold. Loans Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at the principal balance outstanding; net of purchase premiums and discounts, deferred loan fees and costs, and an allowance for loan losses. Interest income on loans is accrued based on principal amounts outstanding. Loan and lease origination fees, fees for commitments that are expected to be exercised and certain direct loan origination costs are deferred and the net amount amortized over the estimated life of the related loans or commitments as a yield adjustment. Other credit-related fees are recognized as fee income when earned. Nonaccrual Loans. Generally, commercial loans and loans secured by real estate are designated as nonaccrual: (a) when either principal or interest payments are 90 or more past due based on contractual terms unless the loan is sufficiently collateralized such that full repayment of both principal and interest is expected and is in the process of collection; or (b) when an individual analysis of a borrower’s creditworthiness indicates a credit should be placed on nonaccrual status. When a loan is placed on nonaccrual status, unpaid interest credited to income in the current year is reversed and unpaid interest accrued in prior years is charged against the allowance for loan losses. Future interest income may only be recorded on a cash basis after recovery of principal is reasonably assured. Nonaccrual loans are returned to accrual status when the financial position of the borrower and other relevant factors indicate there is no longer doubt as to such collectability. Charged-Off Loans. Commercial loans and loans secured by real estate are generally charged-off when deemed uncollectible. A loss is recorded at that time if the net realizable value of the real estate can be quantified and it is less than the associated principal and interest. Consumer loans that are not secured by real estate are subject to mandatory charge-off at a specified delinquency date and are usually not classified as non-accrual prior to being charged-off. Consumer loans, which include installment, automobile, and single payment loans are generally charged-off in full no later than the end of the month in which the loan becomes 120 days past due. 90-Day Past Due Loans. 90 days or more past due loans are loans for which principal or interest payments become 90 days or more past due but that still accrue interest since they are loans that are well secured and in the process of collection. Allowance for Loan Losses. The allowance for loan losses is a valuation allowance for probable incurred credit losses. Credit exposures deemed to be uncollectible are charged-off against the allowance, while recoveries of amounts previously charged-off are credited to the allowance. Management estimates the allowance balance required using past loan loss experience, the nature and volume of the portfolio, information about specific borrower situations and estimated collateral values, economic conditions, and other factors. Allocations of the allowance may be made for specific loans, but the entire allowance is available for any loan that, in management’s judgment, should be charged off. Additions to the allowance for loan losses are charged to operating expense through the provision for loan losses. The amount charged to operating expense in any given year is dependent upon a number of factors including historic loan growth and changes in the composition of the loan portfolio, net charge-off levels, and the Company’s assessment of the allowance for loan losses. The allowance for loan losses consists of specific and general components. The specific component is established for expected losses on individual loans classified as impaired. A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect all contractual principal and interest due according to the terms of the loan agreement. Impaired loans are measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate or the value of the underlying collateral. The Company evaluates the collectability of both principal and interest when assessing the need for loss accrual. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on case-by-case basis, taking into consideration all the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. The specific reserves component of the allowance for loan losses is based on a regular analysis of impaired loans exceeding a fixed dollar amount where the internal credit rating is at or below a predetermined classification. If the estimated fair value of the loan is less than the recorded book value, a valuation allowance is established as a component of the allowance for loan losses. In cases where a borrower experiences financial difficulties and the Company makes certain concessionary modifications to contractual terms, the loan is classified as a troubled debt restructured loan. Loans restructured at a rate equal to or greater than that of a new loan with comparable risk at the time the contract is modified may be excluded from restructured loans in the calendar years subsequent to the restructuring if they are in compliance with modified terms. Generally, a nonaccrual loan that is a troubled debt restructuring remains on nonaccrual until such time that repayment of the remaining principal and interest is not in doubt, and the borrower has a period of satisfactory repayment performance. Troubled debt restructurings (TDRs) are individually evaluated for impairment and included in the separately identified impairment disclosures. TDRs are measured at the present value of estimated future cash flows using the loan’s effective rate at inception. If a TDR is considered to be a collateral dependent loan, the loan is reported, net, at the fair value of the collateral. For TDRs that subsequently default, the Company determines the amount of the allowance on that loan in accordance with the accounting policy for the allowance for loan losses on loans individually identified as impaired. The Company incorporates recent historical experience related to TDRs including the performance of TDRs that subsequently default into the calculation of the allowance by loan portfolio segment. The general component covers loans that are collectively evaluated for impairment. Large groups of smaller balance homogeneous loans, such as consumer and residential real estate loans, are collectively evaluated for impairment, and accordingly, they are not included in the separately identified impairment disclosures. The general allowance component also includes loans that are not individually identified for impairment evaluation, as well as those loans that are individually evaluated but are not considered impaired. The general component is based on historical loss experience adjusted for current factors. The historical loss experience is determined by portfolio segment and is based on the actual loss history experienced by the Company. This actual loss experience is supplemented with other economic factors based on the risks present for each portfolio segment. These economic factors include consideration of the following: levels of and trends in delinquencies and impaired loans (including TDRs); levels of and trends in charge-offs and recoveries; migration of loans to the classification of special mention, substandard, or doubtful; trends in volume and terms of loans; effects of any changes in risk selection and underwriting standards; other changes in lending policies, procedures, and practices; experience, ability, and depth of lending management and other relevant staff; national and local economic trends and conditions; industry conditions; and effects of changes in credit concentration. The establishment of the allowance for loan losses involves a high degree of judgment and includes a level of imprecision given the difficulty of identifying all of the factors impacting loan repayment and the timing of when losses actually occur. Management considers the following when assessing the risk in the loan portfolio: • Commercial loans are dependent on the strength of the industries of the related borrowers and the success of their businesses. Commercial loans are advances for equipment purchases or to provide working capital or meet other financing needs of business enterprises. These loans may be secured by accounts receivable, inventory, equipment or other business assets. At the time of origination, financial information is obtained from the borrower to evaluate ability to repay the loans and periodically obtained during the life of the loan. • Agriculture and Agriculture Real Estate are subject to adverse market conditions including changes in local or foreign demand, weather related reduction in output, impact on storage, distribution or use. Increasing commodity prices leading to higher production costs, distribution or exporting. • Commercial real estate loans and Construction loans are dependent on the industries tied to these loans as well as the local commercial real estate market. The loans are secured by the real estate, and appraisals are obtained to support the loan amount. An evaluation of the project’s cash flows is performed to evaluate the borrower’s ability to repay the loan at the time of origination and periodically updated during the life of the loan. • 1-4 family residential real estate and home equity loans are affected by the local residential real estate market, the local economy, and, for variable rate mortgages, movement in indices tied to these loans. At the time of origination the Bank evaluates the borrower’s repayment ability through a review of credit scores and debt to income ratios. Appraisals are obtained to support the loan amount. • Consumer loans are subject to adverse employment conditions in the local economy which may lead to higher default rates. Decreases in the value of underlying collateral effect the amount collected if a borrower defaults. Loan Commitments and Related Financial Instruments Financial instruments include off-balance sheet credit instruments, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The face amount for these items represents the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded. Concentration of Credit Risk The Bank generates loans throughout its foot print, with lending activities primarily focused on Cook, LaSalle, Kane, Kankakee, Kendall and Will Counties in Illinois and St. Louis County in Missouri. The Bank engages in all traditional aspects of community lending with focuses on: (i) owner occupied commercial real estate, (ii) investor commercial real estate, (iii) residential lending, (iv) commercial lending, (v) multifamily real estate, and (vi) agricultural lending. Mortgage Servicing Rights Servicing rights are recognized separately when they are acquired through sales of loans. When mortgage loans are sold, servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. Fair value is based on market prices for comparable mortgage servicing contracts, when available or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. All classes of servicing assets are subsequently measured using the amortization method which requires servicing rights to be amortized into non-interest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. Servicing rights are evaluated for impairment based upon the fair value of the rights as compared to carrying amount. Impairment is determined by stratifying rights into groupings based on predominant risk characteristics, such as interest rate, loan type and investor type. Impairment is recognized through a valuation allowance for an individual grouping, to the extent that fair value is less than the carrying amount. If the Company later determines that all or a portion of the impairment no longer exists for a particular grouping, a reduction of the allowance may be recorded as an increase to income. Changes in valuation allowances are reported with noninterest expense in the other expense line on the income statement. The fair values of servicing rights are subject to significant fluctuations as a result of changes in estimated and actual prepayment speeds and default rates and losses. Servicing fee income which is reported on the income statement as mortgage banking income is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal; or a fixed amount per loan and are recorded as income when earned. The amortization of mortgage servicing rights is netted against loan servicing fee income. Servicing fees totaled $459 thousand and $492 thousand for years ended December 31, 2016 and 2015 , respectively. Premises and Equipment Premises, furniture and equipment, and leasehold improvements are stated at cost less accumulated depreciation and land is carried at cost. Depreciation expense is determined by the straight-line method over the estimated useful lives of the assets. Leasehold improvements are amortized on a straight-line basis over the shorter of the life of the asset or the lease term. Rates of depreciation are generally based on the following useful lives: buildings, 25 to 40 years; building improvements, typically 3 to 15 years but longer under limited circumstances; and furniture and equipment, 3 to 10 years. Gains and losses on dispositions are included in gains on sale of other assets in noninterest income on the Consolidated Statement of Income. Maintenance and repairs are charged to operating expenses as incurred, while improvements that extend the useful life of assets are capitalized and depreciated over the estimated remaining life. Long-lived depreciable assets are evaluated periodically for impairment when events or changes in circumstances indicate the carrying amount may not be recoverable. Impairment exists when the expected undiscounted future cash flows of a long-lived asset are less than its carrying value. In that event, the Company recognizes a loss for the difference between the carrying amount and the estimated fair value of the asset based on a quoted market price, if applicable, or a discounted cash flow analysis. Impairment losses are recorded in other noninterest expense on the Consolidated Statement of Income. Other Real Estate Owned Other real estate owned includes properties acquired in partial or total satisfaction of certain loans. Properties are initially recorded at fair value, which represents the estimated sales price of the properties on the date acquired less estimated selling costs, establishing a new cost basis. Any write-downs in the carrying value of a property at the time of acquisition are charged against the allowance for loan losses. Management periodically reviews the carrying value of other real estate owned. Any write-downs of the properties subsequent to acquisition, as well as gains or losses on disposition and income or expense from the operations of other real estate owned, are recognized in operating results in the period they are realized. Earnings Per Share Basic earnings per common share is net income for common stockholders divided by the weighted average number of common shares outstanding during the period. Diluted earnings per common share includes the dilutive effect of additional potential common shares issuable under stock options using the treasury stock method. Earnings and dividends per share are restated for all stock splits through the date of issuance of the financial statements. Transfers of Financial Assets Transfers of financial assets are accounted for as sales, when control over the assets has been relinquished. Control over transferred assets is deemed to be surrendered when the assets have been isolated from the Company, 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 the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. Bank-Owned Life Insurance (“BOLI”) BOLI represents life insurance policies on the lives of certain current and former Company officers and directors for which the Company is the sole beneficiary. These policies are recorded as an asset on the Consolidated Balance Sheets at their cash surrender value adjusted for other charges or other amounts due that are probable at settlement. The change in cash surrender value and insurance proceeds received are recorded as bank-owned life insurance income on the Consolidated Statement of Income in noninterest income. Management performs a monthly analysis to determine the current cash surrender value and adjusts the value accordingly. Intangible Assets Intangible assets represent purchased assets that also lack physical substance but can be distinguished from goodwill because of contractual or other legal rights or because the asset is capable of being sold or exchanged either on its own or in combination with a related contract, asset, or liability. Identified intangible assets that have a finite useful life are amortized over that life in a manner that reflects the estimated decline in the economic value of the identified intangible asset. Identified intangible assets that have a finite useful life are periodically reviewed to determine whether there have been any events or circumstances to indicate that the recorded amount is not recoverable from projected undiscounted net operating cash flows. If the projected undiscounted net operating cash flows are less than the carrying amount, a loss is recognized to reduce the carrying amount to fair value, and, when appropriate, the amortization period is also reduced. Unamortized intangible assets associated with disposed assets are included in the determination of gain or loss on the sale of the disposed assets. Intangible assets consist of core deposit and acquired customer relationship intangible assets arising from whole bank and branch company acquisitions. They are initially measured at fair value and then are amortized over ten years using an accelerated method. Management reviews intangible assets at least annually for impairment and any such impairment will be recognized in the period identified. During 2016 , the Company's core deposit intangible became fully amortized. Repurchase agreements Substantially all repurchase agreement liabilities represent amounts advanced by various customers. Securities are pledged to cover these liabilities, which are not covered by federal deposit insurance. Mortgage Banking Derivatives Commitments to fund mortgage loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of these mortgage loans are accounted for as free standing derivatives. Fair values of these mortgage derivatives are estimated based on changes in mortgage interest rates from the date the interest on the loan is locked. The Company enters into forward commitments for the future delivery of mortgage loans when interest rate locks are entered into, in order to hedge the change in interest rates resulting from its commitments to fund the loans. Changes in the fair values of these derivatives are included in net gains on sales of loans. Income Taxes The Company files income tax returns in the U.S. federal jurisdiction and in Illinois and Missouri. The provision for income taxes is based on income in the financial statements, rather than amounts reported on the Company’s income tax return. Changes in enacted tax rates and laws are reflected in the financial statements in the periods they occur. The Company recognizes interest related to income tax matters as interest expense and penalties related to income tax matters as other expense. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in years in which those temporary differences are expected to be recovered or settled. A valuation allowance is established for any deferred tax asset for which recovery or settlement is unlikely. The effect on deferred tax assets and liabilities of a change in tax rates is recognized as income or expense in the period that includes the enactment date. A tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is recorded. Stock-Based Compensation Compensation cost is recognized for stock options and restricted stock awards issued to employees, based on the fair value of these awards at the date of grant. A Black-Scholes model is utilized to estimate the fair value of the stock options, while the market price of the Company’s common stock at the date of grant is used for restricted stock awards. Compensation cost is recognized over the required service period, generally defined as the vesting period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. Fair Value of Financial Instruments Fair values of financial instruments are estimated using relevant market information and other assumptions. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments, and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect the estimates. See Note 4 for additional information. Stockholders’ Equity Capital Event On March 31, 2015, the Company completed the issuance of $76.0 million of new common stock in a private placement offering, $68.2 million of net proceeds after issuance and registration costs of $7.8 million . A total of 6.3 million shares were sold in the offering at a price of $12.00 per share. In conjunction with the stock offering the Company used the proceeds in part to pay $4.9 million in accrued but unpaid interest on its subordinated debentures, redeemed all $32.7 million of Series C Preferred Stock for $19.0 million , settled $10.3 million in notes payable with another financial institution for $8.5 million and made a $36.0 million capital contribution into Centrue Bank. The remaining proceeds will be used for general corporate purposes. Preferred Stock The Company’s Certificate of Incorporation authorizes its board of directors to fix or alter the rights, preferences, privileges, and restrictions of 200,000 shares of preferred stock. The Company has the following classes of preferred stock issued or authorized: Series B Mandatory Redeemable Preferred Stock: The Company has authorized 1,092 shares of Series B Mandatory Redeemable Preferred Stock. There were 209 shares of Series B Mandatory Redeemable Preferred Stock issued and outstanding at December 31, 2016 and 268 shares issued and outstanding at December 31, 2015 which are shown in other liabilities. Preferential cumulative cash dividends are payable quarterly at an annual rate of $60.00 per share. Dividends accrue on each share of Series B Preferred Stock from the date of issuance and from day to day, thereafter, whether or not earned or declared. Each original holder of Series B Preferred Stock (or upon such holder’s death, their executor or personal representatives) will have the option, exercisable at their sole discretion, to sell, and the Company be obligated to redeem such holder’s shares of Series B Preferred Stock. The per share price payable by the Company for such shares of Series B Preferred Stock will be equal to $1,000 per share, plus any accrued but unpaid dividends. Upon dissolution, wind up, or liquidation of the Company, voluntary or otherwise, holders of Series B Preferred Stock will be entitled to receive, out of the assets of the Company available for distribution to stockholders, the amount of $1,000 per share, plus any accrued but unpaid dividends, before any payment or distribution may be made on shares of common stock or any other securities issued by the Company that rank junior to the Series B Preferred Stock. There were no dividends in arrears at December 31, 2016 or December 31, 2015 . Series C Fixed Rate Cumulative Perpetual Preferred Stock: The Company has no Series C Fixed Rate Cumulative Perpetual Preferred Stock authorized, issued and outstanding or dividend in arrears at December 31, 2016 or December 31, 2015 . On March 31, 2015 the

Securities

Securities	12 Months Ended
	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Securities	Securities The following table summarizes the fair value of available-for-sale securities, the related gross unrealized gains and losses recognized in accumulated other comprehensive income, and the amortized cost as follows: December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. government agencies $ 12,680 $ — $ (609 ) $ 12,071 States and political subdivisions 9,127 2 (64 ) 9,065 U.S. government agency residential mortgage-backed securities 128,550 90 (1,327 ) 127,313 Collateralized residential mortgage obligations: Agency 14,566 — (110 ) 14,456 Equity securities 2,689 354 (21 ) 3,022 $ 167,612 $ 446 $ (2,131 ) $ 165,927 December 31, 2015 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. government agencies $ 14,629 $ 13 $ (35 ) $ 14,607 States and political subdivisions 10,190 16 (25 ) 10,181 U.S. government agency residential mortgage-backed securities 127,039 7 (1,017 ) 126,029 Collateralized residential mortgage obligations: Agency 17,990 — (157 ) 17,833 Equity securities 2,632 158 — 2,790 $ 172,480 $ 194 $ (1,234 ) $ 171,440 The amounts below include the activity for available-for-sale securities related to sales, maturities and calls: 2016 2015 Proceeds from calls and maturities $ 13,690 $ 5,965 Proceeds from sales 41,661 91,409 Realized gains 162 519 Realized losses (20 ) (180 ) Net impairment loss recognized in earnings — — The amortized cost and fair value of the investment securities portfolio are shown below by contractual maturity. Expected maturities may differ from contractual maturities if borrowers have the right to call or prepay obligations with or without call or prepayment penalties. December 31, 2016 Amortized Cost Fair Value Due in one year or less $ 382 $ 382 Due after one year through five years 6,840 6,816 Due after five years through ten years 14,585 13,938 Due after ten years — — U.S. government agency residential mortgage-backed securities 128,550 127,313 Collateralized residential mortgage obligations 14,566 14,456 Equity 2,689 3,022 $ 167,612 $ 165,927 Securities with carrying values of approximately $116.9 million at December 31, 2016 and $114.9 million at December 31, 2015 were pledged to secure public deposits and securities sold under agreements to repurchase and for other purposes as required or permitted by law. At December 31, 2016 and 2015 there were no holdings of securities of any one issuer, other than the U.S. Government agencies, in an amount greater than 10% of stockholders’ equity. The Company does not have any securities classified as trading or held-to-maturity. Securities with unrealized losses not recognized in income are as follows presented by length of time individual securities have been in a continuous unrealized loss position: December 31, 2016 Less than 12 Months 12 Months or More Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss U.S. government agencies $ 12,071 $ (609 ) $ — $ — $ 12,071 $ (609 ) States and political subdivisions $ 5,691 $ (64 ) $ — $ — $ 5,691 $ (64 ) U.S. government agency residential mortgage-backed securities 92,400 (1,178 ) 9,379 (149 ) 101,779 (1,327 ) Collateralized residential mortgage obligations: Agency 12,559 (110 ) — — 12,559 (110 ) Equity securities 2,568 (21 ) — — 2,568 (21 ) Total temporarily impaired $ 125,289 $ (1,982 ) $ 9,379 $ (149 ) $ 134,668 $ (2,131 ) December 31, 2015 Less than 12 Months 12 Months or More Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss U.S. government agencies $ 10,394 $ (35 ) $ — $ — $ 10,394 $ (35 ) States and political subdivisions 6,057 (25 ) — — 6,057 (25 ) U.S. government agency residential mortgage-backed securities 124,411 (1,017 ) — — 124,411 (1,017 ) Collateralized residential mortgage obligations: Agency 17,833 (157 ) — — 17,833 (157 ) Total temporarily impaired $ 158,695 $ (1,234 ) $ — $ — $ 158,695 $ (1,234 ) Unrealized losses on agency bonds have not been recognized into income because the issuer(s) bonds are of high credit quality (rated AA or higher at the time of purchase), management does not intend to sell and it is not more likely than not that management would be required to sell the securities prior to their anticipated recovery, and the decline in fair value is largely due to changes in interest rates. The fair value is expected to recover as the bonds(s) approach maturity. As of December 31, 2016 , the Company’s security portfolio consisted of 66 securities, 49 of which were in an unrealized loss position. The majority of unrealized losses are related to the Company’s mortgage-backed, as discussed below: At December 31, 2016 , 100.00% of the mortgage-backed securities held by the Company were issued by U.S. government-sponsored enterprises and agencies, primarily Fannie Mae and Freddie Mac, institutions which the government has affirmed its commitment to support. Because the decline in fair value is attributable to changes in interest rates and illiquidity, and not credit quality, and because the Company does not intend to sell these mortgage-backed securities and it is likely that it will not be required to sell the securities before their anticipated recovery, the Company does not consider these securities to be other-than-temporarily impaired at December 31, 2016 . At December 31, 2015 , the Company’s security portfolio consisted of 59 securities, 46 of which were in an unrealized loss position. The 100.00% of unrealized losses are related to the Company’s mortgage-backed securities and were issued by U.S. government-sponsored enterprises and agencies, primarily Fannie Mae and Freddie Mac, institutions which the government has affirmed its commitment to support. Because the decline in fair value is attributable to changes in interest rates and illiquidity, and not credit quality, and because the Company does not intend to sell these mortgage-backed securities and it is likely that it will not be required to sell the securities before their anticipated recovery, the Company does not consider these securities to be other-than-temporarily impaired at December 31, 2015 .

Loans

Loans	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Loans	Loans The major classifications of loans follow: Aggregate Principal Amount December 31, 2016 December 31, 2015 Commercial $ 80,287 67,360 Agricultural & AGRE 49,121 50,121 Construction, land & development 28,771 26,016 Commercial RE 439,326 391,918 1-4 family mortgages 85,152 95,227 Consumer 3,118 2,905 Total Loans $ 685,775 633,547 Allowance for loan losses (8,904 ) (8,591 ) Loans, net $ 676,871 624,956 The Company sold three branches during 2016. Loans totaling $11.5 million had been identified to be included in this sale and had been excluded from the December 31, 2015 amounts in the table above. See Note 19 for further information. The credit quality indicator utilized by the Company to internally analyze the loan portfolio is the internal risk rating. Internal risk ratings of 0 to 5 are considered pass credits, a risk rating of a 6 is special mention, a risk rating of a 7 is substandard, and a risk rating of an 8 is doubtful. Loans classified as pass credits have no well defined weaknesses and are performing as agreed. Loans classified as special mention have a potential weakness that deserves management's close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution's credit position at some future date. Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected. Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. The following table presents the commercial loan portfolio by internal risk rating: December 31, 2016 Commercial Commercial Real Estate Internal Risk Rating Closed-end Lines of Credit Agriculture & AG RE Construction, Land & Development Owner- Occupied Non-Owner Occupied Total Pass $ 24,984 $ 53,256 $ 49,121 $ 28,652 $ 194,458 $ 236,423 $ 586,894 Special Mention 687 764 — — 1,390 3,824 6,665 Substandard 175 421 — 119 151 3,080 3,946 Doubtful — — — — — — — Total $ 25,846 $ 54,441 $ 49,121 $ 28,771 $ 195,999 $ 243,327 $ 597,505 December 31, 2015 Commercial Commercial Real Estate Internal Risk Rating Closed-end Lines of Credit Agriculture & AG RE Construction, Land & Development Owner- Occupied Non-Owner Occupied Total Pass $ 24,303 $ 42,374 $ 50,121 $ 25,825 $ 164,538 $ 203,679 $ 510,840 Special Mention 304 250 — 64 7,701 11,512 19,831 Substandard 129 — — 127 412 4,076 4,744 Doubtful — — — — — — — Total $ 24,736 $ 42,624 $ 50,121 $ 26,016 $ 172,651 $ 219,267 $ 535,415 The following table presents the retail residential loan portfolio by internal risk rating: Residential -- 1-4 family Senior Lien Jr. Lien & Lines of Credit Total December 31, 2016 Unrated $ 42,772 $ 37,561 $ 80,333 Special mention 89 13 102 Substandard 3,969 748 4,717 Doubtful — — — Total $ 46,830 $ 38,322 $ 85,152 Residential -- 1-4 family Senior Lien Jr. Lien & Lines of Credit Total December 31, 2015 Unrated $ 48,319 $ 41,380 $ 89,699 Special mention 4,011 168 4,179 Substandard 1,036 313 1,349 Doubtful — — — Total $ 53,366 $ 41,861 $ 95,227 The retail residential loan portfolio is generally unrated. Delinquency is a typical factor in adversely risk rating a credit to a special mention or substandard. An analysis of activity in the allowance for loan losses follows: Commercial Agriculture & AG RE Construction, Land & Development Commercial RE 1-4 Family Residential Consumer Total December 31, 2016 Beginning Balance $ 648 $ 97 $ 523 $ 5,681 $ 1,628 $ 14 $ 8,591 Charge-offs (38 ) — — (754 ) (237 ) (4 ) (1,033 ) Recoveries 252 86 32 540 133 3 1,046 Provision 369 (63 ) 90 (299 ) 212 (9 ) 300 Ending Balance $ 1,231 $ 120 $ 645 $ 5,168 $ 1,736 $ 4 $ 8,904 Commercial Agriculture & AG RE Construction, Land & Development Commercial RE 1-4 Family Residential Consumer Total December 31, 2015 Beginning Balance $ 1,117 $ 69 $ 711 $ 3,999 $ 2,075 $ 10 $ 7,981 Charge-offs (384 ) — (4 ) (702 ) (667 ) (6 ) (1,763 ) Recoveries 197 3 52 1,663 52 31 1,998 Provision (282 ) 25 (236 ) 721 168 (21 ) 375 Ending Balance $ 648 $ 97 $ 523 $ 5,681 $ 1,628 $ 14 $ 8,591 The following is an analysis on the balance in the allowance for loan losses and the recorded investment in impaired loans by portfolio segment based on impairment method as of December 31, 2016 and December 31, 2015 : December 31, 2016 Commercial Agriculture & AG RE Construction, Land & Development Commercial RE 1-4 Family Residential Consumer Total Allowance for loan losses: Loans individually evaluated for impairment $ 493 $ — $ 60 $ 92 $ 488 $ — $ 1,133 Loans collectively evaluated for impairment 738 120 585 5,076 1,248 4 7,771 Total ending allowance balance: $ 1,231 $ 120 $ 645 $ 5,168 $ 1,736 $ 4 $ 8,904 Loan balances: Loans individually evaluated for impairment $ 598 $ — $ 129 $ 451 $ 1,709 $ — $ 2,887 Loans collectively evaluated for impairment 79,689 49,121 28,642 438,875 83,443 3,118 682,888 Loans with an allowance recorded: $ 80,287 $ 49,121 $ 28,771 $ 439,326 $ 85,152 $ 3,118 $ 685,775 December 31, 2015 Commercial Agriculture & AG RE Construction, Land & Development Commercial RE 1-4 Family Residential Consumer Total Allowance for loan losses: Loans individually evaluated for impairment $ 80 $ — $ 10 $ 1,178 $ 325 $ 1 $ 1,594 Loans collectively evaluated for impairment 568 97 513 4,503 1,303 13 6,997 Total ending allowance balance: $ 648 $ 97 $ 523 $ 5,681 $ 1,628 $ 14 $ 8,591 Loan balances: Loans individually evaluated for impairment $ 129 $ — $ 127 $ 4,488 $ 1,348 $ 1 $ 6,093 Loans collectively evaluated for impairment 67,231 50,121 25,889 387,430 93,879 2,904 627,454 Loans with an allowance recorded: $ 67,360 $ 50,121 $ 26,016 $ 391,918 $ 95,227 $ 2,905 $ 633,547 Troubled Debt Restructurings: The Company had troubled debt restructurings (“TDRs”) of $0.15 million and $0.24 million as of December 31, 2016 and December 31, 2015 , respectively. Specific reserves were immaterial at December 31, 2016 and December 31, 2015 . At December 31, 2016 , nonaccrual TDR loans were $0.13 million , as compared to $0.24 million at December 31, 2015 . At December 31, 2016 there were $0.02 million of loans on accrual status, while there were none on accrual status at December 31, 2015 . The Company had no commitments to lend additional amounts to a customer with an outstanding loan that is classified as TDR as of December 31, 2016 and December 31, 2015 . In the course of a year the terms of certain loans may be modified as troubled debt restructurings. The modification of the terms of such loans may include one or a combination of the following: a reduction of the stated interest rate of the loan to a below market rate or the payment modification to interest only. A modification involving a reduction of the stated interest rate of the loan would be for periods ranging from 6 months to 16 months . During the year ended December 31, 2016 , there was one TDR loan added in the amount of $0.02 million compared to the year ended December 31, 2015 in which three loans were added as TDRs in the amount of $0.2 million . The following tables present loans by class modified as troubled debt restructurings that occurred during the years ending December 31, 2016 and 2015 : For the Twelve Months Ended December 31, 2016 Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment 1-4 family residential Senior lien 1 $ 20 $ 20 Total 1 $ 20 $ 20 The troubled debt restructurings described above did not have a material impact to the allowance for loan losses and did not result in any additional charge-off’s during the year ended December 31, 2016 . For the Twelve Months Ended December 31, 2015 Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment 1-4 family residential Senior lien 3 $ 241 $ 241 Total 3 $ 241 $ 241 The troubled debt restructurings described above did not have a material impact to the allowance for loan losses and did not result in any additional charge-off’s during the year ended December 31, 2015 . A loan is considered to be in payment default once it is 90 days contractually past due under the modified terms. In the years ended December 31, 2016 and December 31, 2015 there were no loans modified as troubled debt restructurings for which there was a payment default within twelve months following the modification. The Company evaluates loan modifications to determine if the modification constitutes a troubled debt restructure. A loan modification constitutes a troubled debt restructure if the borrower is experiencing financial difficulty and the Company grants a concession it would not otherwise consider. In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed of the probability that the borrower will be in payment default on any of its loans with the Company’s debt in the foreseeable future without the modification. This evaluation is performed under the Company’s internal underwriting guidelines. TDRs are separately identified for impairment disclosures. If a loan is considered to be collateral dependent loan, the TDR is reported, net, at the fair value of the collateral. The following tables present data on impaired loans: December 31, 2016 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized Cash Basis Interest Recognized Loans with no related allowance recorded: Commercial Closed-end $ — $ — $ — $ — $ — $ — Line of credit — — — — — — Agricultural & AG RE — — — 85 — — Construction, land & development 57 235 — 19 — — CRE - all other Owner occupied 134 134 — 9 7 9 Non-owner occupied — — — — — — 1-4 family residential Senior lien 331 349 — 180 — — Jr. lien & lines of credit 433 433 — 116 7 7 Consumer — — — — — — Subtotal 955 1,151 — 409 14 16 Loans with an allowance recorded: Commercial Closed-end $ 175 $ 175 $ 110 $ 135 $ 4 $ 4 Line of credit 423 422 383 293 26 25 Agricultural & AG RE — — — 80 — — Construction, land & development 72 72 60 84 4 1 CRE - all other Owner occupied 17 17 17 313 — — Non-owner occupied 300 300 75 1,110 — — 1-4 family residential Senior lien 629 629 298 862 19 19 Jr. lien & lines of credit 316 316 190 349 14 14 Consumer — — — 1 — — Subtotal 1,932 1,931 1,133 3,227 67 63 Total $ 2,887 $ 3,082 $ 1,133 $ 3,636 $ 81 $ 79 December 31, 2015 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized Cash Basis Interest Recognized Loans with no related allowance recorded: Commercial Closed-end $ 2 $ 2 $ — $ 15 $ 1 $ 1 Line of credit — — — — — — Agricultural & AG RE — — — — — — Construction, land & development — — — 299 — — CRE - all other Owner occupied 6 6 — 78 — — Non-owner occupied — — — — — — 1-4 family residential Senior lien 176 176 — 277 — — Jr. lien & lines of credit 71 71 — 88 3 3 Consumer — — — — — — Subtotal 255 255 — 757 4 4 Loans with an allowance recorded: Commercial Closed-end $ 127 $ 127 $ 80 $ 199 $ 2 $ 2 Line of credit — — — — — — Agricultural & AG RE — — — — — — Construction, land & development 127 419 10 120 — — CRE - all other Owner occupied 406 541 100 586 11 9 Non-owner occupied 4,076 4,955 1,078 4,101 17 17 1-4 family residential Senior lien 859 984 215 1,003 14 10 Jr. lien & lines of credit 242 242 110 230 5 5 Consumer 1 — 1 — — — Subtotal 5,838 7,268 1,594 6,239 49 43 Total $ 6,093 $ 7,523 $ 1,594 $ 6,996 $ 53 $ 47 The Company determined that there were $1.3 million of loans that were classified as impaired but were considered to be performing (i.e., loans which are accruing interest) loans at December 31, 2016 compared to $0.1 million at December 31, 2015 . The following table represents activity related to loan portfolio aging: December 31, 2016 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days Past Due or Nonaccrual Total Past Due Current Total Loans Commercial Closed-end $ 20 $ — $ 122 $ 142 $ 25,704 $ 25,846 Line of credit — — — — 54,441 54,441 Agricultural & AG RE — — — — 49,121 49,121 Construction, land & development 133 — 57 190 28,581 28,771 CRE - all other Owner occupied — — 151 151 195,848 195,999 Non-owner occupied 588 — — 588 242,739 243,327 1-4 family residential Senior lien 664 152 577 1,393 45,437 46,830 Jr. lien & lines of credit 432 19 705 1,156 37,166 38,322 Consumer — — — — 3,118 3,118 Total $ 1,837 $ 171 $ 1,612 $ 3,620 $ 682,155 $ 685,775 December 31, 2015 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days Past Due or Nonaccrual Total Past Due Current Total Loans Commercial Closed-end $ 58 $ — $ 130 $ 188 $ 24,548 $ 24,736 Line of credit — — — — 42,624 42,624 Agricultural & AG RE — — — — 50,121 50,121 Construction, land & development — — 127 127 25,889 26,016 CRE - all other Owner occupied 985 — 412 1,397 171,254 172,651 Non-owner occupied — — 4,076 4,076 215,191 219,267 1-4 family residential Senior lien 1,481 21 994 2,496 50,870 53,366 Jr. lien & lines of credit 230 258 268 756 41,105 41,861 Consumer 1 1 — 2 2,903 2,905 Total $ 2,755 $ 280 $ 6,007 $ 9,042 $ 624,505 $ 633,547 Nonperforming loans include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans. There were no loans past due over 90 days and still accruing interest at the years ending December 31, 2016 and December 31, 2015 . Loans made to executive officers, directors, and their affiliates during 2016 were as follows: Beginning balance $ 46 New loans, extensions, and modification 343 Repayments (17 ) Effect of changes in composition of related parties — Ending balance $ 372

Fair Value

Fair Value	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value	Fair Value The Company measures, monitors, and discloses certain of its assets and liabilities on a fair value basis. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. Fair value guidance establishes a fair value hierarchy that prioritizes the inputs used to measure fair value into three broad levels based on the reliability of the input assumptions. The hierarchy gives the highest priority to level 1 measurements and the lowest priority to level 3 measurements and the categorization of where an asset or liability falls within the hierarchy is based on the lowest level of input that is significant to the fair value measurement. The three levels of the fair value hierarchy are defined as follows: Level 1 - Unadjusted quoted prices for identical assets or liabilities traded in active markets. Level 2 - Observable inputs other than level 1 prices, such as quoted prices for similar instruments; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the asset or liability. Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. The Company used the following methods and significant assumptions to estimate the fair value of each type of financial instrument: Securities Available for Sale Securities. The fair value of securities available for sale is determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1 inputs) or matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted securities (Level 2 inputs). If the securities could not be priced using quoted market prices, observable market activity or comparable trades, the financial market was considered not active and the assets were classified as Level 3. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following table summarizes, by measurement hierarchy, the various assets and liabilities of the Company that are measured at fair value on a recurring basis: Carrying Amount Quoted Prices in Active Markets For Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2016 U.S. government agencies $ 12,071 $ — $ 12,071 $ — State and political subdivisions 9,065 — 6,398 2,667 U.S. government agency residential mortgage-backed securities 127,313 — 127,313 — Collateralized mortgage obligations: Agency 14,456 — 14,456 — Equities 3,022 — 3,022 — Available-for-sale securities $ 165,927 $ — $ 163,260 $ 2,667 Carrying Amount Quoted Prices in Active Markets For Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2015 U.S. government agencies $ 14,607 $ — $ 14,607 $ — State and political subdivisions 10,181 — 5,160 5,021 U.S. government agency residential mortgage-backed securities 126,029 — 126,029 — Collateralized mortgage obligations: Agency 17,833 — 17,833 — Equities 2,790 — 2,790 — Available-for-sale securities $ 171,440 $ — $ 166,419 $ 5,021 There were no transfers between Level 1 and Level 2 during 2016 or 2015 . Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs For the period ended December 31, 2016 , the Company had $2.7 million of local school district bonds that are measured at fair value on a recurring basis using unobservable inputs. The Company utilizes non binding broker quotes for the fair value determination of these school district bonds. These bonds had a fair value of $5.0 million for the period ended December 31, 2015 and during 2016 had maturities of $2.3 million . These school district bond balances are the only assets of the Company that are measured at fair value on a recurring basis using significant unobservable inputs. There currently are no liabilities of the Company that are measured at fair value on a recurring basis using significant unobservable inputs. Assets Measured at Fair Value on a Non-Recurring Basis The following table summarizes, by measurement hierarchy, financial assets of the Company that are measured at fair value on a non-recurring basis. Carrying Amount Quoted Prices in Active Markets For Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2016 Impaired loans Commercial Closed-end $ 25 $ — $ — $ 25 Lines of credit 39 — — 39 CRE - construction, land & development 12 — — 12 1-4 family residential Senior lien 140 — — 140 OREO property CRE - construction, land & development 1,867 — — 1,867 Non-owner occupied 476 — — 476 1-4 family residential Senior lien 163 — — 163 Carrying Amount Quoted Prices in Active Markets For Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2015 Impaired loans 1-4 family residential Senior lien 572 — — 572 OREO property CRE - construction, land & development 1,140 — — 1,140 CRE - all other Non-owner occupied 468 — — 468 1-4 family residential Senior lien 131 — — 131 At the time a loan is considered impaired, it is valued at the lower of cost or fair value. Impaired loans carried at fair value generally receive specific allocations of the allowance for loan losses. For collateral dependent loans, fair value is commonly based on recent real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value. Non-real estate collateral may be valued using an appraisal, net book value per the borrower’s financial statements, or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and management’s expertise and knowledge of the client and client’s business, resulting in a Level 3 fair value classification. Impaired loans are evaluated on a quarterly basis for additional impairment and adjusted accordingly. Impaired loans had a net carrying amount of $0.2 million with a specific loan loss allocation of $0.6 million at December 31, 2016 , resulting in an additional provision for loan losses of $0.6 million for the twelve month period. In 2015 impaired loans had a net carrying amount of $0.6 million with a specific loan loss allocation of $0.3 million during 2015 , resulting in an additional provision for loan losses of $0.1 million for the year ended December 31, 2015 . The majority of our impaired loans are collateralized by real estate. Assets acquired through or instead of loan foreclosure are initially recorded at fair value less costs to sell when acquired, establishing a new cost basis. Any write-downs in the carrying value of a property at the time of acquisition are charged against the allowance for loan losses. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. Management periodically reviews the carrying value of other real estate owned. Any write-downs of the properties subsequent to acquisition, as well as gains or losses on disposition and income or expense from the operations of other real estate owned, are recognized in operating results in the period they are realized. Fair value is commonly based on recent real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value. OREO properties measured at fair value, less costs to sell, had a net carrying amount of $2.5 million which is made up of the outstanding balance of $3.7 million , net of a valuation allowance of $1.2 million at December 31, 2016 . This compares to 2015 when OREO properties with an outstanding balance of $2.9 million was written down to a fair value of $1.7 million . The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at December 31, 2016 and December 31, 2015 : December 31, 2016 Fair Value Valuation Technique Unobservable Inputs Range (Weighted Average) Impaired loans Sales comparison approach Adjustment for differences between comparable sales Commercial Closed-end $ 25 20% - 100% (36%) Lines of credit 39 20% - 100% (89%) CRE - construction, land & development 12 10% - 85% (80%) 1-4 family residential Senior lien 140 10% - 60% (57%) OREO property Sales comparison approach Adjustment for differences between comparable sales CRE - construction, land & development 1,867 5% - 80% (30%) CRE - all other Non-owner occupied 476 5% - 50% (15%) 1-4 family residential Senior lien 163 6% - 65% (37%) December 31, 2015 Fair Value Valuation Technique Unobservable Inputs Range (Weighted Average) Impaired loans Sales comparison approach Adjustment for differences between comparable sales 1-4 family residential Senior lien 572 10% - 60% (17%) OREO property Sales comparison approach Adjustment for differences between comparable sales CRE - construction, land & development $ 1,140 5% - 70% (27%) CRE - all other Non-owner occupied 468 5% - 50% (16%) 1-4 family residential Senior lien 131 6% - 55% (30%) The estimated fair values of the Company’s financial instruments are as follows: Fair Value measurements at December 31, 2016 Using Carrying Value Level 1 Level 2 Level 3 Total Financial assets Cash and cash equivalents $ 22,507 $ 22,507 $ — $ — $ 22,507 Securities 165,927 — 163,260 2,667 165,927 Restricted securities 9,860 — — — NA Net loans 676,871 — — 677,832 677,832 Accrued interest receivable 2,750 — 511 2,239 2,750 Financial liabilities Deposits $ 740,046 $ — $ 740,106 $ — $ 740,106 Federal funds purchased and securities sold under agreements to repurchase 11,168 — 11,168 — 11,168 Federal Home Loan Bank advances 85,000 — 85,039 — 85,039 Subordinated debentures 10,310 — — 9,525 9,525 Series B mandatorily redeemable preferred stock 209 — 211 — 211 Accrued interest payable 286 — 272 14 286 Fair Value measurements at December 31, 2015 Using Carrying Value Level 1 Level 2 Level 3 Total Financial assets Cash and cash equivalents $ 27,655 $ 27,655 $ — $ — $ 27,655 Securities 171,440 — 166,419 5,021 171,440 Restricted securities 9,116 — — — NA Loans held for sale 735 — 760 — 760 Net loans 624,956 — — 629,017 629,017 Accrued interest receivable 3,012 — 402 2,610 3,012 Financial liabilities Deposits $ 718,504 $ — $ 718,689 $ — $ 718,689 Federal funds purchased and securities sold under agreements to repurchase 18,730 — 18,730 — 18,730 Federal Home Loan Bank advances 76,000 — 76,271 — 76,271 Notes payable — — — — — Subordinated debentures 20,620 — — 13,933 13,933 Series B mandatorily redeemable preferred stock 268 — 273 — 273 Accrued interest payable 235 — 169 66 235 Other assets and liabilities of the Company that are not defined as financial instruments are not included in the above disclosures, such as property and equipment. In addition, nonfinancial instruments typically not recognized in financial statements nevertheless may have value but are not included in the above disclosures. These include, among other items, the estimated earning potential of core deposit accounts, the earnings potential of loan servicing rights, the earnings potential of the trust operations, customer goodwill and similar items. The methods and assumptions, not previously presented, used to estimate fair values are described as follows: (a) Cash and Cash Equivalents The carrying amounts of cash and short-term instruments approximate fair values and are classified as either Level 1 or Level 2. As of December 31, 2016 and December 31, 2015 ; $22.5 million and $27.7 million was classified as Level 1. (b) Restricted securities It is not practical to determine the fair value of restricted securities due to the restrictions placed on its transferability. (c) Loans Fair values of loans, excluding loans held for sale, are estimated as follows: Fair values for loans are estimated using discounted cash flow analysis, using interest rates currently being offered for loans with similar terms to borrowers of similar credit quality resulting in a Level 3 classification. Impaired loans are valued at the lower of cost or fair value as described previously. The methods utilized to estimate the fair value of loans do not necessarily represent an exit price. The fair value of loans held for sale is estimated based upon binding contracts and quotes from third party investors resulting in a Level 2 classification. (d) Deposits The fair values disclosed for demand deposits (e.g., interest and non-interest checking, passbook savings, and certain types of money market accounts) are, by definition, equal to the amount payable on demand at the reporting date (i.e., their carrying amount) resulting in a Level 2. Fair values for fixed rate certificates of deposit are estimated using a discounted cash flows calculation that applies interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities on time deposits resulting in a Level 2 classification. (e) Short-term Borrowings The carrying amounts of federal funds purchased, borrowings under repurchase agreements, and other short-term borrowings, generally maturing within ninety days, approximate their fair values resulting in a Level 2 classification. (f) Other Borrowings The fair values of the Company’s long-term borrowings are estimated using discounted cash flow analyses based on the current borrowing rates for similar types of borrowing arrangements resulting in a Level 2 classification. The fair values of the Company’s Subordinated Debentures are estimated using discounted cash flow analyses based on the current borrowing rates for similar types of borrowing arrangements resulting in a Level 3 classification. (g) Accrued Interest Receivable/Payable The carrying amounts of accrued interest approximate fair value resulting in a Level 2 or Level 3 classification which is consistent with the underlying asset/liability they are associated with. (h) Off-balance Sheet Instruments Fair values for off-balance sheet, credit-related financial instruments are based on fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the counterparties’ credit standing. The fair value of commitments is not material.

Loans and Servicing

Loans and Servicing	12 Months Ended
	Dec. 31, 2016
Transfers and Servicing [Abstract]
Loan Sales and Servicing	Loan Sales and Servicing Loans held for sale at year end related to our secondary mortgage market activities, located in the "Loans held for sale" section of our balance sheet. There were no loans held for sale at December 31, 2016 and $0.7 million at December 31, 2015. Mortgage loans serviced for others are not included in the accompanying consolidated balance sheet. The unpaid principal balances of these loans are summarized as follows: December 31, 2016 2015 Federal Home Loan Mortgage Corporation $ 13,674 $ 17,614 Federal National Mortgage Association 252,702 266,307 Total Mortgage Loans Serviced $ 266,376 $ 283,921 Custodial escrow balances maintained in connection with serviced loans were $2.47 million and $2.36 million at year-end 2016 and 2015 . Following is an analysis of the changes in originated mortgage servicing rights: Years Ended December 31, 2016 2015 Balance at beginning of year $ 2,129 $ 2,240 Originated mortgage servicing rights 208 230 Amortization (304 ) (341 ) Balance at end of year $ 2,033 $ 2,129 Mortgage servicing rights are reported on the Consolidated Balance Sheets. Management periodically evaluates mortgage servicing rights for impairment. For purposes of measuring impairment, servicing assets are stratified by loan type. Impairment is recognized if the carrying value of servicing assets exceeds the fair value of the stratum. The fair value of capitalized mortgage servicing rights was $2.1 million and $2.2 million at December 31, 2016 and 2015 , respectively. Fair value was determined using discount rates ranging from 10.50% to 16.50% and prepayment speeds ranging from 12.17% to 14.25% depending on the stratification of the specific right in 2016 . The discount rates used in 2015 ranged from 10.50% to 16.50% and the prepayment speeds used were between 14.80% and 15.72% . Estimated amortization expense for each of the next five years is as follows: 2017 $ 379 2018 245 2019 219 2020 206 2021 207 $ 1,256 There were no repurchases required in 2016 and 2015 . At December 31, 2016 , management believes any recourse obligations to be immaterial.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and Equipment Premises and equipment consisted of: December 31, 2016 2015 Land $ 8,345 $ 8,315 Buildings 14,117 14,118 Furniture and equipment 9,486 13,188 Work in Process 2 84 31,950 35,705 Less accumulated depreciation 15,579 18,853 $ 16,371 $ 16,852 Depreciation expense on premises and equipment totaled $1.1 million in 2016 and $1.2 million in 2015 . The Company entered into agreements to sell three branches during 2016 and completed those sales during the second quarter of 2016. At December 31, 2015 a total of $5.1 million of Premises and Equipment to be included in the sales was transferred to branch assets held for sale and was excluded from the amounts reported above. See Note 19 for further information.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2016
Banking and Thrift [Abstract]
Deposits	Deposits Time certificate of deposits in denominations of $250 thousand or more were $63.6 million and $35.2 million at December 31, 2016 and December 31, 2015 . At December 31, 2016 , the scheduled maturities of time deposits are as follows: 2017 $ 162,545 2018 26,387 2019 8,654 2020 2,183 2021 1,403 $ 201,172 At December 31, 2016 and 2015 , brokered deposits account for $79.9 million and $21.3 million , respectively. Deposits from principal officers, directors and their affiliates at year end 2016 and 2015 were $0.79 million and $0.78 million .

Securities Sold Under Agreement

Securities Sold Under Agreements To Repurchase	12 Months Ended
	Dec. 31, 2016
Banking and Thrift [Abstract]
Securities Sold Under Agreements To Repurchase	Securities Sold Under Agreements To Repurchase Securities sold under agreements to repurchase are financing arrangements that generally mature within 90 days . Repurchase agreements are secured by U.S. Agency residential mortgage-backed securities and, if required, are held in third party pledge accounts. At maturity, the securities underlying the agreements are returned to the Company. Securities sold under agreements to repurchase had a carrying value of $11.2 million at December 31, 2016 and $18.7 million at year-end 2015 . The securities underlying the agreements remain in the respective asset accounts. As of December 31, 2016 , the Company had no counterparties with amounts at risk under repurchase agreements that exceeded 10% of stockholders’ equity. 2016 2015 Average daily balance during the period $ 14,347 $ 18,144 Average interest rate during the period 0.25 % 0.27 % Maximum month end balance during the period $ 18,695 $ 20,832 Weighted average interest rate at period-end 0.19 % 0.26 % At December 31, 2016 , securities sold under agreements to repurchase are secured by $25.4 million of U.S. government agency residential mortgage-backed securities. The contractual maturity of these agreements are overnight and continuous. At December 31, 2015 , securities sold under agreements to repurchase are secured by $25.3 million of U.S. government agency residential mortgage-backed securities. The contractual maturity of these agreements are overnight and continuous. The fair value of securities pledged to secure repurchase agreements may decline. The Company manages this risk by having a policy to pledge securities valued at 15% above the gross outstanding balance of repurchase agreements.

Borrowed Funds and Debt Obligat

Borrowed Funds and Debt Obligations	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Borrowed Funds and Debt Obligations	Borrowed Funds and Debt Obligations At December 31, 2016 and December 31, 2015 no FHLB advances had any call provisions. The Company maintains a collateral pledge agreement covering secured advances whereby the Company had $191.1 million collateral credited to the Company by the FHLB at December 31, 2016 . The Company has pledged $335.5 million of first mortgage loans on property free of all other pledges, liens, and encumbrances (not more than 90 days delinquent). The Company had two variable rate advances at December 31, 2016 both with a year-end rate of 0.445% . The Company had no variable rate advances at year-end 2015 . The remaining advances are at fixed rates ranging from 0.70% to 2.46% at December 31, 2016 and 0.21% to 3.64% at year-end 2015 . The scheduled maturities of advances from the FHLB are as follows: December 31, 2016 December 31, 2015 Year Average Interest Rate Amount Average Interest Rate Amount 2016 — % $ — 0.70 % $ 60,000 2017 0.93 21,000 1.14 11,000 2018 0.44 49,000 3.64 5,000 2019 0.45 10,000 — — 2020 — — — — 2021 2.46 5,000 — — 0.79 % $ 85,000 0.96 % $ 76,000 Of the $21.0 million of FHLB advances with maturities in 2017 at December 31, 2016 , $10.0 million has matured and been renewed. During the period ended December 31, 2015, in connection with the settlement of obligations involving another financial institution, the Company recognized a gain of $1.8 million representing the difference between the fair value of the consideration issued in the settlement transaction and the carrying value of the amounts due to another financial institution. As a result, the gain has been included as ‘‘Gain on extinguishment of debt’’ within income from continuing operations in the accompanying Consolidated Statements of Income for the period ended December 31, 2015. Information concerning borrowed funds is as follows: 2016 2015 Advances from the Federal Home Loan Bank Maximum month-end balance during the period $ 111,000 $ 110,000 Average balance during the period 86,686 64,370 Weighted average interest rate for the period 0.86 % 0.82 % Weighted average interest rate at period end 0.79 % 0.96 % Notes Payable Maximum month-end balance during the period $ — $ 10,250 Average balance during the period — 2,499 Weighted average interest rate for the period — % 3.36 % Weighted average interest rate at period end — % — %

Subordinated Debentures

Subordinated Debentures	12 Months Ended
	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Subordinated Debentures	Subordinated Debentures The Company had two $10.0 million trust preferred issuances that were issued in April 2004 and April 2007 in cumulative trust preferred securities through special-purpose trusts Centrue Statutory Trust II (Trust II) and Centrue Statutory Trust III (Trust III). The proceeds of the offerings were invested by the trusts in junior subordinated deferrable interest debentures of Trust II and Trust III totaling $20.6 million . Trust II is a wholly-owned subsidiary of the Company, and their sole assets are the junior subordinated deferrable interest debentures. On October 27, 2016 the Company redeemed its Trust III issuance for $9.3 million plus accrued interest. This transaction created a gain on debt extinguishment of $1.0 million during the period. The Company had $10.3 million in trust preferred (Trust II) issuances outstanding at December 31, 2016 . Distributions are cumulative and are payable quarterly at a variable rates per annum of the stated liquidation amount of $1,000 per preferred security. Trust II has a rate of 2.65% over the LIBOR rate of 0.9932% for total rate of 3.64% at December 31, 2016 and 3.18% at December 31, 2015 . Trust III had a rate of 1.65% over the LIBOR rate of 0.84560% for a total rate of 2.50% at the time of redemption and 1.98% at December 31, 2015 . Interest expense on the trust preferred securities was $0.5 million for the years ended December 31, 2016 and December 31, 2015 . All interest was accrued as of December 31, 2016 and December 31, 2015 and was immaterial. During the third quarter of 2009, the Company began deferring the interest payments on these instruments. The permitted five year default period expired in the third quarter of 2014 resulting in the Company being in default on these debentures. On March 31, 2015, the accrued interest was made current on each trust preferred security through the most recent quarterly due date and were fully reinstated out of default status. The obligations of the trust are fully and unconditionally guaranteed, on a subordinated basis, by the Company. See Note 1 for additional disclosure related to the deferred interest. The trust preferred securities for the Trust II are redeemable upon the maturity of the debentures on April 22, 2034, or to the extent of any earlier redemption of any debentures by the Company, and are callable beginning April 22, 2009. Holders of the capital securities have no voting rights, are unsecured, and rank junior in priority of payment to all of the Company’s indebtedness and senior to the Company’s capital stock. For regulatory purposes, the trust preferred securities qualify as Tier 1 capital subject to certain provisions. In accordance with accounting guidelines, the trusts are not consolidated with the Company’s consolidated financial statements, but rather the subordinated debentures are shown as a liability and the Company’s investment in the common stock for Trust II of $0.3 million is included in other assets.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense (benefit) consisted of: Years Ended December 31, 2016 2015 Federal Current $ 214 $ 126 Deferred 2,706 (126 ) 2,920 — State Current — — Deferred 682 — 682 — Change in valuation allowance — (37,484 ) $ 3,602 $ (37,484 ) The Company's income tax expense differed from the statutory federal rate of 34% as follows: Years Ended December 31, 2016 2015 Expected income taxes $ 3,372 $ 1,740 Income tax effect of Valuation allowance reversal — (39,759 ) Interest earned on tax-free investments and loans (39 ) (67 ) Nondeductible interest expense incurred to carry tax-free investments and loans 1 1 State income taxes, net of federal tax benefit 450 191 Earnings on Bank-owned life insurance (428 ) (304 ) Bank-owned life insurance substitution gain 208 — Nondeductible meals and health club dues 37 33 Section 382 limitations — 370 Impact of state apportionment change (10 ) 193 Other 11 118 Total income tax expense (benefit) $ 3,602 $ (37,484 ) The significant components of deferred income tax assets and liabilities consisted of: December 31, 2016 December 31, 2015 Deferred tax assets Allowance for loan losses $ 3,465 $ 3,342 Deferred compensation, other 108 74 Stock based expense 66 87 Net operating loss carryforwards 30,166 34,180 Securities available-for-sale 655 405 Deferred tax credits 1,068 823 OREO valuation allowance 942 1,059 Depreciation 196 — Donation carryforward — 5 Capital loss carryforward — 4 Other 204 246 Total deferred tax assets 36,870 40,225 Deferred tax liabilities Depreciation $ — $ (58 ) Adjustments arising from acquisitions (30 ) (146 ) Mortgage servicing rights (791 ) (828 ) Federal Home Loan Bank dividend received in stock (450 ) (450 ) Deferred loan fees & costs (385 ) (399 ) Prepaid expenses (179 ) (164 ) Total deferred tax liabilities (1,835 ) (2,045 ) Valuation allowance — — Net deferred tax assets $ 35,035 $ 38,180 In accordance with current income tax accounting guidance, the Company assessed whether a valuation allowance should be established against their deferred tax assets (DTAs) based on consideration of all available evidence using a “more likely than not” standard. The most significant portions of the deductible temporary differences relate to (1) net operating loss carryforwards and (2) the allowance for loan losses. In assessing the need for a valuation allowance, both the positive and negative evidence about the realization of DTAs were evaluated. The ultimate realization of DTAs is based on the Company’s ability to carryback net operating losses to prior tax periods, tax planning strategies that are prudent and feasible, the reversal of deductible temporary differences that can be offset by taxable temporary differences and future taxable income. After evaluating all of the factors previously summarized and considering the weight of the positive evidence compared to the negative evidence, the Company determined that no valuation adjustment was necessary as of December 31, 2016. The Company also concluded it was more likely than not that it will utilize the net deferred tax assets as of December 31, 2015. Therefore, it reversed the $38.2 million valuation allowance on the net deferred tax assets in the fourth quarter of 2015. The factors leading to this conclusion are positive three year cumulative pre-tax earnings as of December 31, 2015; significantly improved asset quality and capital position; positive loan growth throughout 2015, availability of prudent and feasible tax planning strategies, and future taxable income strategies. At December 31, 2016 and 2015 , federal net operating loss carry forwards includes $1.3 million and $1.4 million , respectively, related to the Illinois Community Bancorp Inc. acquisition. The federal NOL carry forward expires in 2021 thru 2024, and can be used at a rate of $0.16 million per year based on Section 382 limitations. The rest of the federal NOL carry forward represents losses of $9.8 million , $20.1 million , $6.3 million , $29.9 million and $9.2 million generated in 2010, 2011, 2012, 2013 and 2014, respectively, which will begin to expire in 2030. At December 31, 2016 , net operating loss carry forwards also includes $23.3 million , $25.5 million , $14.7 million , $4.6 million , $22.9 million and $6.7 million in state of Illinois loss carry forwards generated in 2010, 2011, 2012, 2013 and 2014, respectively, that have a twelve year carry forward period. New tax laws in Illinois have deferred carry forwards for the years 2011 through 2013; therefore, they will begin to expire after 2023. The Company does not have any material uncertain tax positions or unrecognized tax benefits for additional disclosure in the consolidated financial statements. The Company does not expect the total amount of unrecognized tax benefits to significantly increase or decrease in the next twelve months . The deferred tax credits represent $1.1 million in Alternative Minimum Tax credit carry forwards generated in 2007, 2008, 2015 and 2016. These credits can be carried forward indefinitely. Donation carry forwards of $0.6 million generated in 2010 through 2016 were converted to NOL carryforwards, which extended their expiration periods. During 2016 and 2015 , no interest or penalties were recorded in the income statement. There were no amounts accrued for interest and penalties at December 31, 2016 and December 31, 2015 . The Company is no longer subject to examination by federal or state taxing authorities for tax years prior to 2013 .

Benefit Plans

Benefit Plans	12 Months Ended
	Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Benefit Plans	Benefit Plans The Company has a 401(k) salary reduction plan (the 401(k) plan) covering substantially all employees. Eligible employees may elect to make tax deferred and/or Roth after-tax contributions up to annual IRS contribution limits subject to the results of plan testing. In 2016 , the Plan adopted a "safe harbor" status. Eligible participants received a 100% Company match on the first 3% of eligible compensation deferred and a 50% Company match on deferrals of the next 2% of eligible compensation deferred for a maximum Company match of 4% . A special true-up Company contribution was made in January 2017 to account for non-cash eligible compensation items, participant front-loading/back-loading and any other eligible compensation not captured during the year. The Company expensed $0.5 million for 2016 . In 2015 , the Company accrued 2% of employee eligible wages for employees who met certain eligibility requirements at December 31, 2015 , resulting in an accrual of $0.3 million at December 31, 2015 . This amount was posted to participant accounts in February 2016 . The Company also entered into certain non-qualified deferred compensation agreements with members of the senior management team. The Company may make discretionary matching contributions with respect to a portion of the participant’s deferral. Additionally, the Company continues its non-qualified deferred compensation plan for the directors. These agreements, which are subject to the rules of Internal Revenue Code Section 409A, relate to the voluntary deferral of compensation received. The accrued liability for both deferral plans as of December 31, 2016 was $0.71 million and at December 31, 2015 was $0.03 million . There was no Company match for the employee deferred compensation plan in 2016 and 2015 and none is projected for 2017 . In conjunction with the March 31, 2015 recapitalization which triggered certain change of control provisions, three executives had full balance payouts and two directors had partial balance payouts for aggregate payouts of $38,010 and $16,850 , respectively.

Share Based Compensation

Share Based Compensation	12 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share Based Compensation	Share Based Compensation In April 2003, the Company adopted the 2003 Option Plan. Under the 2003 Option Plan, as amended on April 24, 2007, nonqualified options, incentive stock options, restricted stock and/or stock appreciation rights may be granted to employees and outside directors of the Company and its subsidiaries to purchase the Company's common stock at an exercise price to be determined by the executive and compensation committee. Pursuant to the 2003 Option Plan, 19,000 shares of the Company's unissued common stock had been reserved and were available for issuance upon the exercise of options and rights granted under the 2003 Option Plan. The granted options have an exercise period of seven to ten years from the date of grant. In May 2015, the Company adopted the 2015 Stock Compensation Plan. Under the 2015 Stock Compensation Plan nonqualified options, incentive stock options, restricted stock and/or stock appreciation rights may be granted to employees and outside directors of the Company and its subsidiaries to purchase the Company's common stock at an exercise price to be determined by the compensation committee. A total of 430,000 shares have been made available under the 2015 Stock Compensation Plan. There are currently 356,236 shares available . There were 33,321 units of restricted stock granted in May of 2016 from the 2015 Stock Compensation Plan. The restricted stock units were granted using the last sale price as quoted on the NASDAQ Stock Market on the date of grant of $16.72 per unit. The awarded shares are scheduled to vest over three years in which two-thirds will vest on May 10, 2018 and the remaining one-third will vest on May 10, 2019. The Company awarded 40,443 shares of restricted stock in November 2015 that were available under the restricted portion of the plan. The restricted shares were issued out of treasury shares with an aggregate grant date fair value of $0.7 million . The awards were granted using the last sale price as quoted on the NASDAQ Stock Market on the date of grant of $17.75 . The awarded shares vested immediately but are subject to a holding period in which the shares may not be sold, assigned, transferred, pledged or otherwise encumbered. There was no compensation cost charged against income for the stock options portion of the Equity Incentive Plan for the years ended December 31, 2016 and December 31, 2015 . There was $0.1 million and $0.5 million of compensation cost charged against income for the restricted stock portion of the equity incentive plan for the year ended December 31, 2016 and December 31, 2015 , respectively. The fair value of each option award is estimated on the date of grant using a closed form option valuation (Black-Scholes) model that uses the assumptions noted in the table below. Expected volatilities are based on historical volatilities of the Company’s common stock prior to its de-registration. The Company uses historical data to estimate option exercise and post-vesting termination behavior. (Employee and management options are tracked separately.) The expected term of options granted is based on historical data and represents the period of time that options granted are expected to be outstanding, which takes into account that the options are not transferable. The risk-free interest rate for the expected term of the option is based on the U.S. Treasury yield curve in effect at the time of the grant. There were no options granted in December 31, 2016 and in December 31, 2015 . A status summary of the option plan as of December 31, 2016 and changes during the period ended on that date are presented below: Shares Weighted-Average Exercise Price Weighted-Average Remaining Contractual Life Aggregate Intrinsic Value Outstanding at January 1, 2015 3,156 $ 338.72 Granted — — Exercised — — Forfeited (2,824 ) 310.57 Outstanding at end of period 332 $ 578.10 0.3 years $ — Vested or expected to vest 332 $ 578.10 0.3 years $ — Options exercisable at period end 332 $ 578.10 0.3 years $ — Options outstanding at December 31, 2016 and year-end 2015 were as follows: Outstanding Exercisable Range of Exercise Prices Number Weighted Average Remaining Contractual Life Number Weighted Average Exercise Price December 31, 2016: $390.01 - $578.10 332 0.3 years 332 578.10 332 0.3 years 332 $ 578.10 December 31, 2015: $157.20 - $390.00 2,160 0.2 years 2,160 $ 228.33 390.01 - 578.10 996 0.9 years 996 578.10 3,156 0.4 years 3,156 $ 338.72 As of December 31, 2016 and December 31, 2015 , there was no unrecognized compensation cost related to non-vested stock options granted under the 2003 Option Plan. As of December 31, 2016, there was $0.4 million of total unrecognized compensation costs related to non-vested shares granted under the 2015 Stock Compensation Plan.

Regulatory Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2016
Banking and Thrift [Abstract]
Regulatory Matters	Regulatory Matters The Company and the Bank (“Regulated Companies”) are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum regulatory capital requirements can initiate certain mandatory, and possibly additional discretionary actions by these regulators that, if undertaken, could have a direct material effect on the Company’s Consolidated Financial Statements. Under regulatory capital adequacy guidelines and the regulatory framework for prompt corrective action, the Regulated Companies must meet specific regulatory capital guidelines that involve quantitative measures of their assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. Their regulatory 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 regulatory capital adequacy require the Regulated Companies to maintain minimum amounts and ratios (set forth in the table below) of total and Tier 1 capital to risk-weighted assets, and of Tier 1 Capital to average assets. Tier 1 Capital includes common stockholders’ equity, qualifying preferred stock and Trust Preferred securities, less goodwill and certain other deductions (including the unrealized net gains and losses, after applicable taxes, on available-for-sale securities carried at fair value). Total Capital includes Tier 1 Capital plus preferred stock not qualifying as Tier 1 Capital, mandatory convertible debt, subordinated debt and the allowance for loan and lease losses, subject to limitations by the guidelines. On July 2, 2013, the Federal Reserve Board and the FDIC approved rules that implement the “Basel III” regulatory capital reforms, as well as certain changes required by the Dodd-Frank Act. The rules include a common equity Tier 1 capital conservation buffer of 2.5% of risk-weighted assets, which is in addition to the Tier 1 and Tier 2 risk-based capital requirements. The capital conservation buffer will be phased in over four years beginning on January 1, 2016, with a maximum buffer of 0.625% of risk-weighted assets for 2016, 1.25% for 2017, 1.875% for 2018, and 2.5% for 2019 and thereafter. Failure to maintain the required capital conservation buffer will result in limitations on capital distributions and on discretionary bonuses to executive officers. Regulatory capital ratios shown for December 31, 2016 are in excess of the Basel III 2016 phase-in level for the capital conservation buffer. Basel III also introduced changes to risk-weightings and treatment of Accumulated Other Comprehensive Income (AOCI). In 2015, the Bank made a one -time available election to opt-out of the impact of certain unrealized capital gains and losses in AOCI being included in regulatory capital. There is no opportunity to change methodology in future periods. On March 31, 2015, the Company completed a common stock offering and capital infusion into the Bank. See Note 1 for additional disclosure. Actual To Be Adequately Capitalized To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio As of December 31, 2016 Total capital (to risk-weighted assets) Centrue Financial $ 118,841 15.0 % N/A N/A N/A N/A Centrue Bank 115,455 14.5 63,556 8.0 79,445 10.0 Common equity tier I (to risk-weighted assets) Centrue Financial $ 109,434 13.8 N/A N/A N/A N/A Centrue Bank 106,551 13.4 35,750 4.5 51,639 6.5 Tier I capital (to risk-weighted assets) Centrue Financial $ 109,937 13.8 N/A N/A N/A N/A Centrue Bank 106,551 13.4 47,667 6.0 63,556 8.0 Tier I leverage ratio (to average assets) Centrue Financial $ 109,937 11.5 N/A N/A N/A N/A Centrue Bank 106,551 11.1 38,251 4.0 47,814 5.0 Actual To Be Adequately Capitalized To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio As of December 31, 2015 Total capital (to risk-weighted assets) Centrue Financial $ 118,359 15.6 % N/A N/A N/A N/A Centrue Bank 117,807 15.6 60,463 8.0 75,579 10.0 Common equity tier I (to risk-weighted assets) Centrue Financial 107,678 14.2 N/A N/A N/A N/A Centrue Bank 109,216 14.5 34,011 4.5 49,126 6.5 Tier I capital (to risk-weighted assets) Centrue Financial $ 109,768 14.5 N/A N/A N/A N/A Centrue Bank 109,216 14.5 45,347 6.0 60,463 8.0 Tier I leverage ratio (to average assets) Centrue Financial $ 109,768 12.1 N/A N/A N/A N/A Centrue Bank 109,216 12.0 36,505 4.0 45,631 5.0 On December 18, 2009, the Bank entered into an Agreement with the Federal Reserve Bank-Chicago and the IDFPR. The Agreement describes commitments made by the Bank to address and strengthen banking practices relating to credit risk management practices; improving loan underwriting and loan administration; improving asset quality by enhancing the Bank’s position on problem loans through repayment, additional collateral or other means; reviewing and revising as necessary the Bank’s allowance for loan and lease losses policy; maintaining sufficient regulatory capital at the Bank, implementing an earnings plan and comprehensive budget to improve and sustain the Bank’s earnings; and improving the Bank’s liquidity position and funds management practices. The Agreement was terminated on February 16, 2016.

Commitments, Contingencies, and

Commitments, Contingencies, and Credit Risk	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments, Contingencies and Credit Risk	Commitments, Contingencies, and Credit Risk In the normal course of business, the Company enters into a variety of financial instruments with off-balance sheet risk to meet the financing needs of its customers, to reduce its exposure to fluctuations in interest rates, and to conduct lending activities. These instruments principally include commitments to extend credit and standby letters of credit. These instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the Consolidated Balance Sheets. Financial instruments whose contract amounts represent credit risk are as follows: Standby Letters of Credit Variable Rate Commitments Fixed Rate Commitments Total Commitments Range of Rates on Fixed Rate Commitments Commitments December 31, 2016 $ 1,809 $ 89,680 $ 34,460 $ 125,949 2.60% - 18.00% December 31, 2015 1,970 120,173 29,681 151,824 2.60% - 18.00% Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. For commitments to extend credit, the Bank evaluates each customer's creditworthiness on a case-by-case basis. The amount of collateral obtained is based on management's credit evaluation of the customer. Collateral held varies, but may include accounts receivable; inventory; property, plant, and equipment; and income producing commercial properties. In the event of a customer’s nonperformance, the Company’s credit loss exposure is equal to the contractual amount of those commitments. The credit risk is essentially the same as that involved in extending loans to customers and is subject to normal credit policies. The Company uses the same credit policies in making credit commitments as it does for on-balance sheet instruments, with such exposure to credit loss minimized due to various collateral requirements in place. Unsecured standby letters of credit are conditional commitments issued by the Bank to guarantee the performance of a customer to a third party. The credit risk involved in issuing standby letters of credit is essentially the same as that involved in extending loan commitments to customers. The Company leases certain branch properties under operating leases. Rent expense was $0.32 million and $0.31 million for the years-ended December 31, 2016 and December 31, 2015 , respectively. Rent commitments, before considering renewal options that generally are present, were as follows: 2017 $ 315 2018 266 2019 154 2020 — Total $ 735

Condensed Financial Information

Condensed Financial Information - Parent Company	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Financial Information - Parent Company Only	Condensed Financial Information - Parent Company Only The following represents the condensed financial statements of Centrue Financial Corporation, the Parent Company. Balance Sheets (Parent Company Only) December 31, 2016 2015 ASSETS Cash and cash equivalents $ 3,479 $ 741 Securities available-for-sale 27 27 Investment in subsidiary 128,096 135,576 Other assets 6,051 6,075 $ 137,653 $ 142,419 LIABILITIES AND STOCKHOLDERS' EQUITY Series B mandatory redeemable preferred stock $ 209 $ 268 Subordinated debentures 10,310 20,620 Other liabilities 205 250 10,724 21,138 Stockholders' equity 126,929 121,281 $ 137,653 $ 142,419 Income Statements (Parent Company Only) Years Ended December 31, 2016 2015 Dividends from subsidiary $ — $ — Interest income 16 16 Other income 1,109 1,754 Interest expense 563 645 Other expense 693 1,055 Income tax benefit (51 ) (6,068 ) Equity in undistributed earnings of subsidiaries 6,396 36,464 Net income 6,316 42,602 Preferred stock dividends — 1,484 Discount on redemption of preferred stock — (13,668 ) Net income for common stockholders $ 6,316 $ 54,786 Statements of Cash Flows (Parent Company Only) Years Ended December 31, 2016 2015 Cash flows from operating activities Net income $ 6,316 $ 42,602 Adjustments to reconcile net income to net cash provided by operating activities Undistributed earnings of subsidiary (6,396 ) (36,464 ) Share based compensation 124 461 Forfeited stock options (70 ) — Gain from extinguishment of debt (1,000 ) (1,750 ) (Increase) decrease in other assets 24 (4,271 ) Decrease in other liabilities (45 ) (4,871 ) Net cash used in operating activities (1,047 ) (4,293 ) Cash flows from investing activities Capital infusion to subsidiary $ — $ (36,000 ) Proceeds from repurchase of subsidiary common stock 9,000 — Net cash provided by (used in) investing activities 9,000 (36,000 ) Cash flows from financing activities Repayment of notes payable $ — $ (8,500 ) Proceeds from issuance of common stock 4,173 68,248 Repurchase of subordinated debentures (9,000 ) — Redemption of Series C Cumulative Perpetual Preferred Stock — (19,000 ) Redemption of mandatory redeemable preferred stock (59 ) — Dividends paid on preferred stock (329 ) (478 ) Net cash provided by (used in) financing activities (5,215 ) 40,270 Net decrease in cash and cash equivalents $ 2,738 $ (23 ) Cash and cash equivalents Beginning of period 741 764 End of period $ 3,479 $ 741

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share A reconciliation of the numerators and denominators for earnings per common share computations for the years ended December 31, 2016 and 2015 is presented below. Common shares, options and per share amounts for both periods shown have been restated to reflect the impact of the reverse stock split the Company completed effective May 29 th , 2015. Options to purchase 332 and 3,156 shares of common stock were outstanding for December 31, 2016 and 2015 , respectively; but were not included in the computation of diluted earnings per share because the exercise price was greater than the average market price and, therefore, were anti-dilutive. Of the 33,321 shares of restricted stock units issued in 2016 , 3,415 shares were considered dilutive at December 31, 2016 . As of December 31, 2015 , there were no shares considered dilutive. 2016 2015 Basic Earnings Per Common Share Net income $ 6,316 $ 42,602 Preferred stock dividends (329 ) (1,484 ) Discount on redemption of preferred stock — 13,668 Net income for common shareholders $ 5,987 $ 54,786 Weighted average common shares outstanding 6,513,694 4,945,073 Basic earnings per common share $ 0.92 $ 11.08 Diluted Earnings Per Common Share Weighted average common shares outstanding 6,513,694 4,945,073 Add: dilutive effect of restricted stock units 3,415 — Weighted average common and dilutive potential shares outstanding 6,517,109 4,945,073 Diluted earnings per common share $ 0.92 $ 11.08

Quarterly Financial Data (Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data (Unaudited)	Quarterly Financial Data (Unaudited) Interest Net Interest Net Earnings Per Share Income Income Income Basic Diluted 2016 First Quarter $ 7,913 $ 7,262 $ 918 $ 0.13 $ 0.13 Second Quarter 7,862 7,216 2,128 0.31 0.31 Third Quarter 7,928 7,216 1,055 0.15 0.15 Fourth Quarter 7,985 7,292 2,215 0.33 0.33 2015 First Quarter $ 6,734 $ 6,040 $ 1,867 $ 65.60 $ 65.60 Second Quarter 7,007 6,446 1,053 0.16 0.16 Third Quarter 7,336 6,737 1,088 0.11 0.11 Fourth Quarter 7,678 7,081 38,594 5.92 5.92

Business Acquisitions and Dives

Business Acquisitions and Divestitures	12 Months Ended
	Dec. 31, 2016
Business Combinations [Abstract]
Business Acquisitions and Divestitures	Business Acquisitions and Divestitures On June 17, 2016, Centrue Bank completed the sales of its Fairview Heights, Aviston and St. Rose, Illinois branches. The sales resulted in a reduction of $51.7 million of deposits, $13.1 million of loans and $5.1 million of fixed assets. These transactions generated a net after tax gain of $1.1 million .

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On January 26, 2017, the Company announced the signing of a definitive agreement with Midland States Bancorp, Inc. ("Midland") under which Midland will acquire Centrue for estimated total consideration of $175.1 million , or $26.75 per share of Centrue common stock. The transaction is expected to close in mid-2017, subject to regulatory approvals, the approval of Centrue's and Midland's shareholders and the satisfaction of customary closing conditions.

Summary of Significant Accoun28

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts and results of operations of the Company and its subsidiary after elimination of all significant intercompany accounts and transactions.
Use of Estimates	Use of Estimates The accounting and reporting policies of the Company and its subsidiaries conform to U.S. generally accepted accounting principles ("GAAP") and general practice within the banking industry. The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.
Basis of Presentation	Basis of Presentation The accounting and reporting policies of the Company conform to generally accepted accounting principles in the United States of America. The Company’s December 31, 2016 and 2015 financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of its financial position and results of operations for the periods presented. All such adjustments are of a normal and recurring nature.
Cash flows	Cash flows Cash and cash equivalents includes cash, deposits with other financial institutions with maturities under 90 days, and federal funds sold. Net cash flows are reported for customer loan and deposit transactions, repurchase agreements, FHLB advances and federal funds purchased.
Securities	Securities Available-for-sale . 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. Available-for-sale securities are carried at fair value with unrealized gains and losses, net of related deferred income taxes, recorded in stockholders’ equity as a separate component of other comprehensive income. 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 considerations, and other similar factors. Purchases and sales of securities are recognized on a trade date basis. Realized securities gains or losses are reported in securities gains (losses), net in the Consolidated Statement of Income. The cost of securities sold is based on the specific identification method. On a quarterly basis, the Company makes an assessment to determine whether there have been any events or circumstances to indicate that a security for which there is an unrealized loss is impaired on an other-than-temporary (“OTTI”) basis. In evaluating other-than-temporary impairment, the Company considers many factors including the severity and duration of the impairment; the financial condition and near-term prospects of the issuer, which for debt securities considers external credit ratings and recent downgrades; whether it intends to sell, or it is more likely than not that it will be required to sell, a security in an unrealized loss position before recovery of its amortized cost basis. Securities for which there is an unrealized loss that is deemed to be OTTI are written down to fair value with the write-down recorded as a realized loss and included in net impairment on securities, but only to the extent the impairment is related to credit losses. The amount of the impairment related to other factors is recognized in other comprehensive income unless management intends to sell the security or believes it is more likely than not that it will be required to sell the security prior to full recovery. Interest income is reported net of amortization of premiums and accretion of discounts. Amortization of purchase premium or discount is included in interest income. Premiums and discounts on securities are amortized over the level-yield method without anticipating prepayments except for mortgage backed securities where prepayments are anticipated. Restricted Securities. Federal Home Loan Bank stock and Federal Reserve Bank stock are carried at cost and are included in restricted stock. The Corporation is required to maintain these equity securities as a member of both the Federal Home Loan Bank and the Federal Reserve System, and in amounts as required by these institutions. These equity securities are “restricted” in that they can only be sold back to the respective institutions or another member institution at par. Therefore, they are less liquid than other tradable equity securities and no impairment has been recorded during 2016 and 2015 . Both cash and stock dividends are reported as income.
Loans Held for Sale and Loans	Loans Held for Sale Mortgage loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or fair value, as determined by outstanding commitments from investors. Net unrealized losses, if any, are recorded as a valuation allowance and charged to earnings. Mortgage loans held for sale are sold with either servicing rights retained or servicing rights released. When retaining the servicing rights, the carrying value of mortgage loans sold is reduced by the cost allocated to the servicing right. Gains and losses on sales of mortgage loans are based on the difference between the selling price and the carrying value of the related loan sold. When selling service released, the gain or loss is determined by comparing the selling price to the value of the mortgage sold. Loans Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at the principal balance outstanding; net of purchase premiums and discounts, deferred loan fees and costs, and an allowance for loan losses. Interest income on loans is accrued based on principal amounts outstanding. Loan and lease origination fees, fees for commitments that are expected to be exercised and certain direct loan origination costs are deferred and the net amount amortized over the estimated life of the related loans or commitments as a yield adjustment. Other credit-related fees are recognized as fee income when earned. Nonaccrual Loans. Generally, commercial loans and loans secured by real estate are designated as nonaccrual: (a) when either principal or interest payments are 90 or more past due based on contractual terms unless the loan is sufficiently collateralized such that full repayment of both principal and interest is expected and is in the process of collection; or (b) when an individual analysis of a borrower’s creditworthiness indicates a credit should be placed on nonaccrual status. When a loan is placed on nonaccrual status, unpaid interest credited to income in the current year is reversed and unpaid interest accrued in prior years is charged against the allowance for loan losses. Future interest income may only be recorded on a cash basis after recovery of principal is reasonably assured. Nonaccrual loans are returned to accrual status when the financial position of the borrower and other relevant factors indicate there is no longer doubt as to such collectability. Charged-Off Loans. Commercial loans and loans secured by real estate are generally charged-off when deemed uncollectible. A loss is recorded at that time if the net realizable value of the real estate can be quantified and it is less than the associated principal and interest. Consumer loans that are not secured by real estate are subject to mandatory charge-off at a specified delinquency date and are usually not classified as non-accrual prior to being charged-off. Consumer loans, which include installment, automobile, and single payment loans are generally charged-off in full no later than the end of the month in which the loan becomes 120 days past due. 90-Day Past Due Loans. 90 days or more past due loans are loans for which principal or interest payments become 90 days or more past due but that still accrue interest since they are loans that are well secured and in the process of collection. Allowance for Loan Losses. The allowance for loan losses is a valuation allowance for probable incurred credit losses. Credit exposures deemed to be uncollectible are charged-off against the allowance, while recoveries of amounts previously charged-off are credited to the allowance. Management estimates the allowance balance required using past loan loss experience, the nature and volume of the portfolio, information about specific borrower situations and estimated collateral values, economic conditions, and other factors. Allocations of the allowance may be made for specific loans, but the entire allowance is available for any loan that, in management’s judgment, should be charged off. Additions to the allowance for loan losses are charged to operating expense through the provision for loan losses. The amount charged to operating expense in any given year is dependent upon a number of factors including historic loan growth and changes in the composition of the loan portfolio, net charge-off levels, and the Company’s assessment of the allowance for loan losses. The allowance for loan losses consists of specific and general components. The specific component is established for expected losses on individual loans classified as impaired. A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect all contractual principal and interest due according to the terms of the loan agreement. Impaired loans are measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate or the value of the underlying collateral. The Company evaluates the collectability of both principal and interest when assessing the need for loss accrual. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on case-by-case basis, taking into consideration all the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. The specific reserves component of the allowance for loan losses is based on a regular analysis of impaired loans exceeding a fixed dollar amount where the internal credit rating is at or below a predetermined classification. If the estimated fair value of the loan is less than the recorded book value, a valuation allowance is established as a component of the allowance for loan losses. In cases where a borrower experiences financial difficulties and the Company makes certain concessionary modifications to contractual terms, the loan is classified as a troubled debt restructured loan. Loans restructured at a rate equal to or greater than that of a new loan with comparable risk at the time the contract is modified may be excluded from restructured loans in the calendar years subsequent to the restructuring if they are in compliance with modified terms. Generally, a nonaccrual loan that is a troubled debt restructuring remains on nonaccrual until such time that repayment of the remaining principal and interest is not in doubt, and the borrower has a period of satisfactory repayment performance. Troubled debt restructurings (TDRs) are individually evaluated for impairment and included in the separately identified impairment disclosures. TDRs are measured at the present value of estimated future cash flows using the loan’s effective rate at inception. If a TDR is considered to be a collateral dependent loan, the loan is reported, net, at the fair value of the collateral. For TDRs that subsequently default, the Company determines the amount of the allowance on that loan in accordance with the accounting policy for the allowance for loan losses on loans individually identified as impaired. The Company incorporates recent historical experience related to TDRs including the performance of TDRs that subsequently default into the calculation of the allowance by loan portfolio segment. The general component covers loans that are collectively evaluated for impairment. Large groups of smaller balance homogeneous loans, such as consumer and residential real estate loans, are collectively evaluated for impairment, and accordingly, they are not included in the separately identified impairment disclosures. The general allowance component also includes loans that are not individually identified for impairment evaluation, as well as those loans that are individually evaluated but are not considered impaired. The general component is based on historical loss experience adjusted for current factors. The historical loss experience is determined by portfolio segment and is based on the actual loss history experienced by the Company. This actual loss experience is supplemented with other economic factors based on the risks present for each portfolio segment. These economic factors include consideration of the following: levels of and trends in delinquencies and impaired loans (including TDRs); levels of and trends in charge-offs and recoveries; migration of loans to the classification of special mention, substandard, or doubtful; trends in volume and terms of loans; effects of any changes in risk selection and underwriting standards; other changes in lending policies, procedures, and practices; experience, ability, and depth of lending management and other relevant staff; national and local economic trends and conditions; industry conditions; and effects of changes in credit concentration. The establishment of the allowance for loan losses involves a high degree of judgment and includes a level of imprecision given the difficulty of identifying all of the factors impacting loan repayment and the timing of when losses actually occur. Management considers the following when assessing the risk in the loan portfolio: • Commercial loans are dependent on the strength of the industries of the related borrowers and the success of their businesses. Commercial loans are advances for equipment purchases or to provide working capital or meet other financing needs of business enterprises. These loans may be secured by accounts receivable, inventory, equipment or other business assets. At the time of origination, financial information is obtained from the borrower to evaluate ability to repay the loans and periodically obtained during the life of the loan. • Agriculture and Agriculture Real Estate are subject to adverse market conditions including changes in local or foreign demand, weather related reduction in output, impact on storage, distribution or use. Increasing commodity prices leading to higher production costs, distribution or exporting. • Commercial real estate loans and Construction loans are dependent on the industries tied to these loans as well as the local commercial real estate market. The loans are secured by the real estate, and appraisals are obtained to support the loan amount. An evaluation of the project’s cash flows is performed to evaluate the borrower’s ability to repay the loan at the time of origination and periodically updated during the life of the loan. • 1-4 family residential real estate and home equity loans are affected by the local residential real estate market, the local economy, and, for variable rate mortgages, movement in indices tied to these loans. At the time of origination the Bank evaluates the borrower’s repayment ability through a review of credit scores and debt to income ratios. Appraisals are obtained to support the loan amount. • Consumer loans are subject to adverse employment conditions in the local economy which may lead to higher default rates. Decreases in the value of underlying collateral effect the amount collected if a borrower defaults.
Loan Commitments and Related Financial Instruments	Loan Commitments and Related Financial Instruments Financial instruments include off-balance sheet credit instruments, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The face amount for these items represents the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded.
Concentration of Credit Risk	Concentration of Credit Risk The Bank generates loans throughout its foot print, with lending activities primarily focused on Cook, LaSalle, Kane, Kankakee, Kendall and Will Counties in Illinois and St. Louis County in Missouri. The Bank engages in all traditional aspects of community lending with focuses on: (i) owner occupied commercial real estate, (ii) investor commercial real estate, (iii) residential lending, (iv) commercial lending, (v) multifamily real estate, and (vi) agricultural lending.
Mortgage Servicing Rights	Mortgage Servicing Rights Servicing rights are recognized separately when they are acquired through sales of loans. When mortgage loans are sold, servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. Fair value is based on market prices for comparable mortgage servicing contracts, when available or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. All classes of servicing assets are subsequently measured using the amortization method which requires servicing rights to be amortized into non-interest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. Servicing rights are evaluated for impairment based upon the fair value of the rights as compared to carrying amount. Impairment is determined by stratifying rights into groupings based on predominant risk characteristics, such as interest rate, loan type and investor type. Impairment is recognized through a valuation allowance for an individual grouping, to the extent that fair value is less than the carrying amount. If the Company later determines that all or a portion of the impairment no longer exists for a particular grouping, a reduction of the allowance may be recorded as an increase to income. Changes in valuation allowances are reported with noninterest expense in the other expense line on the income statement. The fair values of servicing rights are subject to significant fluctuations as a result of changes in estimated and actual prepayment speeds and default rates and losses. Servicing fee income which is reported on the income statement as mortgage banking income is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal; or a fixed amount per loan and are recorded as income when earned. The amortization of mortgage servicing rights is netted against loan servicing fee income.
Premises and Equipment	Premises and Equipment Premises, furniture and equipment, and leasehold improvements are stated at cost less accumulated depreciation and land is carried at cost. Depreciation expense is determined by the straight-line method over the estimated useful lives of the assets. Leasehold improvements are amortized on a straight-line basis over the shorter of the life of the asset or the lease term. Rates of depreciation are generally based on the following useful lives: buildings, 25 to 40 years; building improvements, typically 3 to 15 years but longer under limited circumstances; and furniture and equipment, 3 to 10 years. Gains and losses on dispositions are included in gains on sale of other assets in noninterest income on the Consolidated Statement of Income. Maintenance and repairs are charged to operating expenses as incurred, while improvements that extend the useful life of assets are capitalized and depreciated over the estimated remaining life. Long-lived depreciable assets are evaluated periodically for impairment when events or changes in circumstances indicate the carrying amount may not be recoverable. Impairment exists when the expected undiscounted future cash flows of a long-lived asset are less than its carrying value. In that event, the Company recognizes a loss for the difference between the carrying amount and the estimated fair value of the asset based on a quoted market price, if applicable, or a discounted cash flow analysis. Impairment losses are recorded in other noninterest expense on the Consolidated Statement of Income.
Other Real Estate Owned	Other Real Estate Owned Other real estate owned includes properties acquired in partial or total satisfaction of certain loans. Properties are initially recorded at fair value, which represents the estimated sales price of the properties on the date acquired less estimated selling costs, establishing a new cost basis. Any write-downs in the carrying value of a property at the time of acquisition are charged against the allowance for loan losses. Management periodically reviews the carrying value of other real estate owned. Any write-downs of the properties subsequent to acquisition, as well as gains or losses on disposition and income or expense from the operations of other real estate owned, are recognized in operating results in the period they are realized.
Earnings Per Share	Earnings Per Share Basic earnings per common share is net income for common stockholders divided by the weighted average number of common shares outstanding during the period. Diluted earnings per common share includes the dilutive effect of additional potential common shares issuable under stock options using the treasury stock method. Earnings and dividends per share are restated for all stock splits through the date of issuance of the financial statements.
Transfers of Financial Assets	Transfers of Financial Assets Transfers of financial assets are accounted for as sales, when control over the assets has been relinquished. Control over transferred assets is deemed to be surrendered when the assets have been isolated from the Company, 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 the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Bank-Owned Life Insurance (BOLI)	Bank-Owned Life Insurance (“BOLI”) BOLI represents life insurance policies on the lives of certain current and former Company officers and directors for which the Company is the sole beneficiary. These policies are recorded as an asset on the Consolidated Balance Sheets at their cash surrender value adjusted for other charges or other amounts due that are probable at settlement. The change in cash surrender value and insurance proceeds received are recorded as bank-owned life insurance income on the Consolidated Statement of Income in noninterest income. Management performs a monthly analysis to determine the current cash surrender value and adjusts the value accordingly.
Intangible Assets	Intangible Assets Intangible assets represent purchased assets that also lack physical substance but can be distinguished from goodwill because of contractual or other legal rights or because the asset is capable of being sold or exchanged either on its own or in combination with a related contract, asset, or liability. Identified intangible assets that have a finite useful life are amortized over that life in a manner that reflects the estimated decline in the economic value of the identified intangible asset. Identified intangible assets that have a finite useful life are periodically reviewed to determine whether there have been any events or circumstances to indicate that the recorded amount is not recoverable from projected undiscounted net operating cash flows. If the projected undiscounted net operating cash flows are less than the carrying amount, a loss is recognized to reduce the carrying amount to fair value, and, when appropriate, the amortization period is also reduced. Unamortized intangible assets associated with disposed assets are included in the determination of gain or loss on the sale of the disposed assets. Intangible assets consist of core deposit and acquired customer relationship intangible assets arising from whole bank and branch company acquisitions. They are initially measured at fair value and then are amortized over ten years using an accelerated method. Management reviews intangible assets at least annually for impairment and any such impairment will be recognized in the period identified.
Repurchase agreements	Repurchase agreements Substantially all repurchase agreement liabilities represent amounts advanced by various customers. Securities are pledged to cover these liabilities, which are not covered by federal deposit insurance.
Mortgage Banking Derivatives	Mortgage Banking Derivatives Commitments to fund mortgage loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of these mortgage loans are accounted for as free standing derivatives. Fair values of these mortgage derivatives are estimated based on changes in mortgage interest rates from the date the interest on the loan is locked. The Company enters into forward commitments for the future delivery of mortgage loans when interest rate locks are entered into, in order to hedge the change in interest rates resulting from its commitments to fund the loans. Changes in the fair values of these derivatives are included in net gains on sales of loans.
Income Taxes	Income Taxes The Company files income tax returns in the U.S. federal jurisdiction and in Illinois and Missouri. The provision for income taxes is based on income in the financial statements, rather than amounts reported on the Company’s income tax return. Changes in enacted tax rates and laws are reflected in the financial statements in the periods they occur. The Company recognizes interest related to income tax matters as interest expense and penalties related to income tax matters as other expense. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in years in which those temporary differences are expected to be recovered or settled. A valuation allowance is established for any deferred tax asset for which recovery or settlement is unlikely. The effect on deferred tax assets and liabilities of a change in tax rates is recognized as income or expense in the period that includes the enactment date. A tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is recorded.
Stock-Based Compensation	Stock-Based Compensation Compensation cost is recognized for stock options and restricted stock awards issued to employees, based on the fair value of these awards at the date of grant. A Black-Scholes model is utilized to estimate the fair value of the stock options, while the market price of the Company’s common stock at the date of grant is used for restricted stock awards. Compensation cost is recognized over the required service period, generally defined as the vesting period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award.
Fair Value of Financial Instruments	Fair Value of Financial Instruments Fair values of financial instruments are estimated using relevant market information and other assumptions. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments, and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect the estimates. See Note 4 for additional information.
Dividend Restrictions	Dividend Restrictions Banking regulations require the maintenance of certain regulatory capital levels and may limit the amount of dividends that may be paid by the subsidiary bank to the holding company or by the holding company to stockholders.
Loss Contingencies	Loss Contingencies Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated. Management does not believe there now are such matters that will have a material effect on the financial statements.
Comprehensive Income	Comprehensive Income Comprehensive income is the total of reported net income and all other revenues, expenses, gains, and losses that bypass reported net income under GAAP. As of December 31, 2016 , the Company included unrealized gains or losses on securities available-for-sale in other comprehensive income.
Treasury Stock	Treasury Stock Treasury stock acquired is recorded at cost and is carried as a reduction of stockholders’ equity in the Consolidated Balance Sheets. Treasury stock issued is valued based on the “last in, first out” inventory method. The difference between the consideration received upon issuance and the carrying value is charged or credited to surplus.
Reclassifications	Reclassifications Certain prior year account balances, with no effect on net income or stockholders’ equity, have been reclassified to be consistent with the classifications adopted as of and for the period ended December 31, 2016 .
Recent Accounting Pronouncements	Recent Accounting Pronouncements In August 2016, the FASB issued amended guidance (ASU 2016-15) to clarify the classification of certain items with an entity’s statements of cash flows. These items include debt prepayment or extinguishment costs, settlement of zero-coupon debt instruments, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, proceeds from the settlement of BOLI policies, distributions received from equity method investees, and beneficial interests in securitization transactions. The amended guidance also specifies how to address classification of cash receipts and payments that have aspects of more than one class of cash flows. The amended guidance is effective for fiscal years, and interim periods within those years, beginning after December 15, 2017, with early adoption permitted, and is to be applied on a retrospective basis unless it is impractical to do so. Management is currently in the process of evaluating the impact of the amended guidance on its Consolidated Financial Statements. In June 2016 the FASB issued accounting standards update 2016-13 Financial Instruments - Credit Losses, commonly referred to as CECL. The provisions of the update eliminate the probable initial recognition threshold under current GAAP which requires reserves to be based on an incurred loss methodology. Under CECL reserves required for financial assets measured at amortized cost will reflect an organization’s estimate of all expected credit losses over the contractual term of the financial asset and thereby require the use of reasonable and supportable forecasts to estimate future credit losses. Because CECL encompasses all financial assets carried at amortized cost, the requirement that reserves be established based on an organization’s reasonable and supportable estimate of expected credit losses extends to held to maturity (HTM) debt securities. Under the provisions of the update credit losses recognized on available for sale (AFS) debt securities will be presented as an allowance as opposed to a write-down. In addition, CECL will modify the accounting for purchased loans, with credit deterioration since origination, so that reserves are established at the date of acquisition for purchased loans. Under current GAAP a purchased loan’s contractual balance is adjusted to fair value through a credit discount and no reserve is recorded on the purchased loan upon acquisition. Since under CECL reserves will be established for purchased loans at the time of acquisition the accounting for purchased loans is made more comparable to the accounting for originated loans. Finally, increased disclosure requirements under CECL oblige organizations to present the currently required credit quality disclosures disaggregated by the year of origination or vintage. FASB expects that the evaluation of underwriting standards and credit quality trends by financial statement users will be enhanced with the additional vintage disclosures. For public business entities that are SEC filers the amendments of the update are effective beginning January 1, 2020. Management is in the process of evaluating the impact of CECL on the Company’s financial position, results of operations and cash flows as well as its required disclosures. In March 2016, the FASB issued an update (ASU No. 2016-09, Stock Compensation: Improvements to Employee Share-Based Payment Accounting.) The guidance in this update affects any entity that issues share-based payment awards to its employees and is intended to simplify several aspects of the accounting for share-based payment awards including income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The amendments in this update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. Early adoption is permitted. The adoption of this standard is not expected to have a material effect on the Company's results of operations or financial position. In February 2016, the FASB issued an update (ASU No. 2016-02, Leases) creating FASB Topic 842, Leases. The guidance is intended to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and requiring more disclosures related to leasing transactions. The amendments in this update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2018. Early adoption is permitted. Management is currently evaluating the impact on the consolidated financial statements and related disclosures.

Securities (Tables)

Securities (Tables)	12 Months Ended
	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Summary of the Fair Value, Gross Unrealized Gains and Losses and Amortized Cost of Securities	The following table summarizes the fair value of available-for-sale securities, the related gross unrealized gains and losses recognized in accumulated other comprehensive income, and the amortized cost as follows: December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. government agencies $ 12,680 $ — $ (609 ) $ 12,071 States and political subdivisions 9,127 2 (64 ) 9,065 U.S. government agency residential mortgage-backed securities 128,550 90 (1,327 ) 127,313 Collateralized residential mortgage obligations: Agency 14,566 — (110 ) 14,456 Equity securities 2,689 354 (21 ) 3,022 $ 167,612 $ 446 $ (2,131 ) $ 165,927 December 31, 2015 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. government agencies $ 14,629 $ 13 $ (35 ) $ 14,607 States and political subdivisions 10,190 16 (25 ) 10,181 U.S. government agency residential mortgage-backed securities 127,039 7 (1,017 ) 126,029 Collateralized residential mortgage obligations: Agency 17,990 — (157 ) 17,833 Equity securities 2,632 158 — 2,790 $ 172,480 $ 194 $ (1,234 ) $ 171,440
Activity for Available-for-Sale Securities	The amounts below include the activity for available-for-sale securities related to sales, maturities and calls: 2016 2015 Proceeds from calls and maturities $ 13,690 $ 5,965 Proceeds from sales 41,661 91,409 Realized gains 162 519 Realized losses (20 ) (180 ) Net impairment loss recognized in earnings — —
Schedule of Contractual Maturity of Securities	The amortized cost and fair value of the investment securities portfolio are shown below by contractual maturity. Expected maturities may differ from contractual maturities if borrowers have the right to call or prepay obligations with or without call or prepayment penalties. December 31, 2016 Amortized Cost Fair Value Due in one year or less $ 382 $ 382 Due after one year through five years 6,840 6,816 Due after five years through ten years 14,585 13,938 Due after ten years — — U.S. government agency residential mortgage-backed securities 128,550 127,313 Collateralized residential mortgage obligations 14,566 14,456 Equity 2,689 3,022 $ 167,612 $ 165,927
Schedule of Securities in a Continuous Unrealized Loss Position	Securities with unrealized losses not recognized in income are as follows presented by length of time individual securities have been in a continuous unrealized loss position: December 31, 2016 Less than 12 Months 12 Months or More Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss U.S. government agencies $ 12,071 $ (609 ) $ — $ — $ 12,071 $ (609 ) States and political subdivisions $ 5,691 $ (64 ) $ — $ — $ 5,691 $ (64 ) U.S. government agency residential mortgage-backed securities 92,400 (1,178 ) 9,379 (149 ) 101,779 (1,327 ) Collateralized residential mortgage obligations: Agency 12,559 (110 ) — — 12,559 (110 ) Equity securities 2,568 (21 ) — — 2,568 (21 ) Total temporarily impaired $ 125,289 $ (1,982 ) $ 9,379 $ (149 ) $ 134,668 $ (2,131 ) December 31, 2015 Less than 12 Months 12 Months or More Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss U.S. government agencies $ 10,394 $ (35 ) $ — $ — $ 10,394 $ (35 ) States and political subdivisions 6,057 (25 ) — — 6,057 (25 ) U.S. government agency residential mortgage-backed securities 124,411 (1,017 ) — — 124,411 (1,017 ) Collateralized residential mortgage obligations: Agency 17,833 (157 ) — — 17,833 (157 ) Total temporarily impaired $ 158,695 $ (1,234 ) $ — $ — $ 158,695 $ (1,234 )

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Summary of Loan Classifications	The major classifications of loans follow: Aggregate Principal Amount December 31, 2016 December 31, 2015 Commercial $ 80,287 67,360 Agricultural & AGRE 49,121 50,121 Construction, land & development 28,771 26,016 Commercial RE 439,326 391,918 1-4 family mortgages 85,152 95,227 Consumer 3,118 2,905 Total Loans $ 685,775 633,547 Allowance for loan losses (8,904 ) (8,591 ) Loans, net $ 676,871 624,956
Schedule of Loans by Internal Risk Rating	The following table presents the commercial loan portfolio by internal risk rating: December 31, 2016 Commercial Commercial Real Estate Internal Risk Rating Closed-end Lines of Credit Agriculture & AG RE Construction, Land & Development Owner- Occupied Non-Owner Occupied Total Pass $ 24,984 $ 53,256 $ 49,121 $ 28,652 $ 194,458 $ 236,423 $ 586,894 Special Mention 687 764 — — 1,390 3,824 6,665 Substandard 175 421 — 119 151 3,080 3,946 Doubtful — — — — — — — Total $ 25,846 $ 54,441 $ 49,121 $ 28,771 $ 195,999 $ 243,327 $ 597,505 December 31, 2015 Commercial Commercial Real Estate Internal Risk Rating Closed-end Lines of Credit Agriculture & AG RE Construction, Land & Development Owner- Occupied Non-Owner Occupied Total Pass $ 24,303 $ 42,374 $ 50,121 $ 25,825 $ 164,538 $ 203,679 $ 510,840 Special Mention 304 250 — 64 7,701 11,512 19,831 Substandard 129 — — 127 412 4,076 4,744 Doubtful — — — — — — — Total $ 24,736 $ 42,624 $ 50,121 $ 26,016 $ 172,651 $ 219,267 $ 535,415 The following table presents the retail residential loan portfolio by internal risk rating: Residential -- 1-4 family Senior Lien Jr. Lien & Lines of Credit Total December 31, 2016 Unrated $ 42,772 $ 37,561 $ 80,333 Special mention 89 13 102 Substandard 3,969 748 4,717 Doubtful — — — Total $ 46,830 $ 38,322 $ 85,152 Residential -- 1-4 family Senior Lien Jr. Lien & Lines of Credit Total December 31, 2015 Unrated $ 48,319 $ 41,380 $ 89,699 Special mention 4,011 168 4,179 Substandard 1,036 313 1,349 Doubtful — — — Total $ 53,366 $ 41,861 $ 95,227
Analysis of Activity in Allowance for Loan Losses	An analysis of activity in the allowance for loan losses follows: Commercial Agriculture & AG RE Construction, Land & Development Commercial RE 1-4 Family Residential Consumer Total December 31, 2016 Beginning Balance $ 648 $ 97 $ 523 $ 5,681 $ 1,628 $ 14 $ 8,591 Charge-offs (38 ) — — (754 ) (237 ) (4 ) (1,033 ) Recoveries 252 86 32 540 133 3 1,046 Provision 369 (63 ) 90 (299 ) 212 (9 ) 300 Ending Balance $ 1,231 $ 120 $ 645 $ 5,168 $ 1,736 $ 4 $ 8,904 Commercial Agriculture & AG RE Construction, Land & Development Commercial RE 1-4 Family Residential Consumer Total December 31, 2015 Beginning Balance $ 1,117 $ 69 $ 711 $ 3,999 $ 2,075 $ 10 $ 7,981 Charge-offs (384 ) — (4 ) (702 ) (667 ) (6 ) (1,763 ) Recoveries 197 3 52 1,663 52 31 1,998 Provision (282 ) 25 (236 ) 721 168 (21 ) 375 Ending Balance $ 648 $ 97 $ 523 $ 5,681 $ 1,628 $ 14 $ 8,591 The following is an analysis on the balance in the allowance for loan losses and the recorded investment in impaired loans by portfolio segment based on impairment method as of December 31, 2016 and December 31, 2015 : December 31, 2016 Commercial Agriculture & AG RE Construction, Land & Development Commercial RE 1-4 Family Residential Consumer Total Allowance for loan losses: Loans individually evaluated for impairment $ 493 $ — $ 60 $ 92 $ 488 $ — $ 1,133 Loans collectively evaluated for impairment 738 120 585 5,076 1,248 4 7,771 Total ending allowance balance: $ 1,231 $ 120 $ 645 $ 5,168 $ 1,736 $ 4 $ 8,904 Loan balances: Loans individually evaluated for impairment $ 598 $ — $ 129 $ 451 $ 1,709 $ — $ 2,887 Loans collectively evaluated for impairment 79,689 49,121 28,642 438,875 83,443 3,118 682,888 Loans with an allowance recorded: $ 80,287 $ 49,121 $ 28,771 $ 439,326 $ 85,152 $ 3,118 $ 685,775 December 31, 2015 Commercial Agriculture & AG RE Construction, Land & Development Commercial RE 1-4 Family Residential Consumer Total Allowance for loan losses: Loans individually evaluated for impairment $ 80 $ — $ 10 $ 1,178 $ 325 $ 1 $ 1,594 Loans collectively evaluated for impairment 568 97 513 4,503 1,303 13 6,997 Total ending allowance balance: $ 648 $ 97 $ 523 $ 5,681 $ 1,628 $ 14 $ 8,591 Loan balances: Loans individually evaluated for impairment $ 129 $ — $ 127 $ 4,488 $ 1,348 $ 1 $ 6,093 Loans collectively evaluated for impairment 67,231 50,121 25,889 387,430 93,879 2,904 627,454 Loans with an allowance recorded: $ 67,360 $ 50,121 $ 26,016 $ 391,918 $ 95,227 $ 2,905 $ 633,547
Summary of Troubled Debt Restructurings	The following tables present loans by class modified as troubled debt restructurings that occurred during the years ending December 31, 2016 and 2015 : For the Twelve Months Ended December 31, 2016 Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment 1-4 family residential Senior lien 1 $ 20 $ 20 Total 1 $ 20 $ 20 The troubled debt restructurings described above did not have a material impact to the allowance for loan losses and did not result in any additional charge-off’s during the year ended December 31, 2016 . For the Twelve Months Ended December 31, 2015 Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment 1-4 family residential Senior lien 3 $ 241 $ 241 Total 3 $ 241 $ 241
Summary of Impaired Loans	The following tables present data on impaired loans: December 31, 2016 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized Cash Basis Interest Recognized Loans with no related allowance recorded: Commercial Closed-end $ — $ — $ — $ — $ — $ — Line of credit — — — — — — Agricultural & AG RE — — — 85 — — Construction, land & development 57 235 — 19 — — CRE - all other Owner occupied 134 134 — 9 7 9 Non-owner occupied — — — — — — 1-4 family residential Senior lien 331 349 — 180 — — Jr. lien & lines of credit 433 433 — 116 7 7 Consumer — — — — — — Subtotal 955 1,151 — 409 14 16 Loans with an allowance recorded: Commercial Closed-end $ 175 $ 175 $ 110 $ 135 $ 4 $ 4 Line of credit 423 422 383 293 26 25 Agricultural & AG RE — — — 80 — — Construction, land & development 72 72 60 84 4 1 CRE - all other Owner occupied 17 17 17 313 — — Non-owner occupied 300 300 75 1,110 — — 1-4 family residential Senior lien 629 629 298 862 19 19 Jr. lien & lines of credit 316 316 190 349 14 14 Consumer — — — 1 — — Subtotal 1,932 1,931 1,133 3,227 67 63 Total $ 2,887 $ 3,082 $ 1,133 $ 3,636 $ 81 $ 79 December 31, 2015 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized Cash Basis Interest Recognized Loans with no related allowance recorded: Commercial Closed-end $ 2 $ 2 $ — $ 15 $ 1 $ 1 Line of credit — — — — — — Agricultural & AG RE — — — — — — Construction, land & development — — — 299 — — CRE - all other Owner occupied 6 6 — 78 — — Non-owner occupied — — — — — — 1-4 family residential Senior lien 176 176 — 277 — — Jr. lien & lines of credit 71 71 — 88 3 3 Consumer — — — — — — Subtotal 255 255 — 757 4 4 Loans with an allowance recorded: Commercial Closed-end $ 127 $ 127 $ 80 $ 199 $ 2 $ 2 Line of credit — — — — — — Agricultural & AG RE — — — — — — Construction, land & development 127 419 10 120 — — CRE - all other Owner occupied 406 541 100 586 11 9 Non-owner occupied 4,076 4,955 1,078 4,101 17 17 1-4 family residential Senior lien 859 984 215 1,003 14 10 Jr. lien & lines of credit 242 242 110 230 5 5 Consumer 1 — 1 — — — Subtotal 5,838 7,268 1,594 6,239 49 43 Total $ 6,093 $ 7,523 $ 1,594 $ 6,996 $ 53 $ 47
Schedule of Activity Related to Loan Portfolio Aging	The following table represents activity related to loan portfolio aging: December 31, 2016 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days Past Due or Nonaccrual Total Past Due Current Total Loans Commercial Closed-end $ 20 $ — $ 122 $ 142 $ 25,704 $ 25,846 Line of credit — — — — 54,441 54,441 Agricultural & AG RE — — — — 49,121 49,121 Construction, land & development 133 — 57 190 28,581 28,771 CRE - all other Owner occupied — — 151 151 195,848 195,999 Non-owner occupied 588 — — 588 242,739 243,327 1-4 family residential Senior lien 664 152 577 1,393 45,437 46,830 Jr. lien & lines of credit 432 19 705 1,156 37,166 38,322 Consumer — — — — 3,118 3,118 Total $ 1,837 $ 171 $ 1,612 $ 3,620 $ 682,155 $ 685,775 December 31, 2015 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days Past Due or Nonaccrual Total Past Due Current Total Loans Commercial Closed-end $ 58 $ — $ 130 $ 188 $ 24,548 $ 24,736 Line of credit — — — — 42,624 42,624 Agricultural & AG RE — — — — 50,121 50,121 Construction, land & development — — 127 127 25,889 26,016 CRE - all other Owner occupied 985 — 412 1,397 171,254 172,651 Non-owner occupied — — 4,076 4,076 215,191 219,267 1-4 family residential Senior lien 1,481 21 994 2,496 50,870 53,366 Jr. lien & lines of credit 230 258 268 756 41,105 41,861 Consumer 1 1 — 2 2,903 2,905 Total $ 2,755 $ 280 $ 6,007 $ 9,042 $ 624,505 $ 633,547
Schedule of Loans Made to Executive Officers, Directors and their Affiliates	Loans made to executive officers, directors, and their affiliates during 2016 were as follows: Beginning balance $ 46 New loans, extensions, and modification 343 Repayments (17 ) Effect of changes in composition of related parties — Ending balance $ 372

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table summarizes, by measurement hierarchy, the various assets and liabilities of the Company that are measured at fair value on a recurring basis: Carrying Amount Quoted Prices in Active Markets For Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2016 U.S. government agencies $ 12,071 $ — $ 12,071 $ — State and political subdivisions 9,065 — 6,398 2,667 U.S. government agency residential mortgage-backed securities 127,313 — 127,313 — Collateralized mortgage obligations: Agency 14,456 — 14,456 — Equities 3,022 — 3,022 — Available-for-sale securities $ 165,927 $ — $ 163,260 $ 2,667 Carrying Amount Quoted Prices in Active Markets For Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2015 U.S. government agencies $ 14,607 $ — $ 14,607 $ — State and political subdivisions 10,181 — 5,160 5,021 U.S. government agency residential mortgage-backed securities 126,029 — 126,029 — Collateralized mortgage obligations: Agency 17,833 — 17,833 — Equities 2,790 — 2,790 — Available-for-sale securities $ 171,440 $ — $ 166,419 $ 5,021
Summary of Assets Measured at Fair Value on a Nonrecurring Basis	The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at December 31, 2016 and December 31, 2015 : December 31, 2016 Fair Value Valuation Technique Unobservable Inputs Range (Weighted Average) Impaired loans Sales comparison approach Adjustment for differences between comparable sales Commercial Closed-end $ 25 20% - 100% (36%) Lines of credit 39 20% - 100% (89%) CRE - construction, land & development 12 10% - 85% (80%) 1-4 family residential Senior lien 140 10% - 60% (57%) OREO property Sales comparison approach Adjustment for differences between comparable sales CRE - construction, land & development 1,867 5% - 80% (30%) CRE - all other Non-owner occupied 476 5% - 50% (15%) 1-4 family residential Senior lien 163 6% - 65% (37%) December 31, 2015 Fair Value Valuation Technique Unobservable Inputs Range (Weighted Average) Impaired loans Sales comparison approach Adjustment for differences between comparable sales 1-4 family residential Senior lien 572 10% - 60% (17%) OREO property Sales comparison approach Adjustment for differences between comparable sales CRE - construction, land & development $ 1,140 5% - 70% (27%) CRE - all other Non-owner occupied 468 5% - 50% (16%) 1-4 family residential Senior lien 131 6% - 55% (30%) The following table summarizes, by measurement hierarchy, financial assets of the Company that are measured at fair value on a non-recurring basis. Carrying Amount Quoted Prices in Active Markets For Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2016 Impaired loans Commercial Closed-end $ 25 $ — $ — $ 25 Lines of credit 39 — — 39 CRE - construction, land & development 12 — — 12 1-4 family residential Senior lien 140 — — 140 OREO property CRE - construction, land & development 1,867 — — 1,867 Non-owner occupied 476 — — 476 1-4 family residential Senior lien 163 — — 163 Carrying Amount Quoted Prices in Active Markets For Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2015 Impaired loans 1-4 family residential Senior lien 572 — — 572 OREO property CRE - construction, land & development 1,140 — — 1,140 CRE - all other Non-owner occupied 468 — — 468 1-4 family residential Senior lien 131 — — 131
Schedule of Financial Instruments Estimated at Fair Value	The estimated fair values of the Company’s financial instruments are as follows: Fair Value measurements at December 31, 2016 Using Carrying Value Level 1 Level 2 Level 3 Total Financial assets Cash and cash equivalents $ 22,507 $ 22,507 $ — $ — $ 22,507 Securities 165,927 — 163,260 2,667 165,927 Restricted securities 9,860 — — — NA Net loans 676,871 — — 677,832 677,832 Accrued interest receivable 2,750 — 511 2,239 2,750 Financial liabilities Deposits $ 740,046 $ — $ 740,106 $ — $ 740,106 Federal funds purchased and securities sold under agreements to repurchase 11,168 — 11,168 — 11,168 Federal Home Loan Bank advances 85,000 — 85,039 — 85,039 Subordinated debentures 10,310 — — 9,525 9,525 Series B mandatorily redeemable preferred stock 209 — 211 — 211 Accrued interest payable 286 — 272 14 286 Fair Value measurements at December 31, 2015 Using Carrying Value Level 1 Level 2 Level 3 Total Financial assets Cash and cash equivalents $ 27,655 $ 27,655 $ — $ — $ 27,655 Securities 171,440 — 166,419 5,021 171,440 Restricted securities 9,116 — — — NA Loans held for sale 735 — 760 — 760 Net loans 624,956 — — 629,017 629,017 Accrued interest receivable 3,012 — 402 2,610 3,012 Financial liabilities Deposits $ 718,504 $ — $ 718,689 $ — $ 718,689 Federal funds purchased and securities sold under agreements to repurchase 18,730 — 18,730 — 18,730 Federal Home Loan Bank advances 76,000 — 76,271 — 76,271 Notes payable — — — — — Subordinated debentures 20,620 — — 13,933 13,933 Series B mandatorily redeemable preferred stock 268 — 273 — 273 Accrued interest payable 235 — 169 66 235

Loan Sales and Servicing (Table

Loan Sales and Servicing (Tables)	12 Months Ended
	Dec. 31, 2016
Transfers and Servicing [Abstract]
Schedule of Unpaid Principal Balances of Servicing Assets	The unpaid principal balances of these loans are summarized as follows: December 31, 2016 2015 Federal Home Loan Mortgage Corporation $ 13,674 $ 17,614 Federal National Mortgage Association 252,702 266,307 Total Mortgage Loans Serviced $ 266,376 $ 283,921
Summary of Mortgage Servicing Rights	Following is an analysis of the changes in originated mortgage servicing rights: Years Ended December 31, 2016 2015 Balance at beginning of year $ 2,129 $ 2,240 Originated mortgage servicing rights 208 230 Amortization (304 ) (341 ) Balance at end of year $ 2,033 $ 2,129
Schedule of Estimated Amortization Expenses, Servicing Rights	Estimated amortization expense for each of the next five years is as follows: 2017 $ 379 2018 245 2019 219 2020 206 2021 207 $ 1,256

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and equipment consisted of: December 31, 2016 2015 Land $ 8,345 $ 8,315 Buildings 14,117 14,118 Furniture and equipment 9,486 13,188 Work in Process 2 84 31,950 35,705 Less accumulated depreciation 15,579 18,853 $ 16,371 $ 16,852

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2016
Banking and Thrift [Abstract]
Schedule of Maturities of Time Deposits	At December 31, 2016 , the scheduled maturities of time deposits are as follows: 2017 $ 162,545 2018 26,387 2019 8,654 2020 2,183 2021 1,403 $ 201,172

Securities Sold Under Agreeme35

Securities Sold Under Agreements To Repurchase (Tables)	12 Months Ended
	Dec. 31, 2016
Banking and Thrift [Abstract]
Schedule of Securities Sold Under Agreements To Repurchase	2016 2015 Average daily balance during the period $ 14,347 $ 18,144 Average interest rate during the period 0.25 % 0.27 % Maximum month end balance during the period $ 18,695 $ 20,832 Weighted average interest rate at period-end 0.19 % 0.26 %

Borrowed Funds and Debt Oblig36

Borrowed Funds and Debt Obligations (Tables)	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Scheduled of Maturities of Advances from FHLB	The scheduled maturities of advances from the FHLB are as follows: December 31, 2016 December 31, 2015 Year Average Interest Rate Amount Average Interest Rate Amount 2016 — % $ — 0.70 % $ 60,000 2017 0.93 21,000 1.14 11,000 2018 0.44 49,000 3.64 5,000 2019 0.45 10,000 — — 2020 — — — — 2021 2.46 5,000 — — 0.79 % $ 85,000 0.96 % $ 76,000
Schedule of Borrowed Funds	Information concerning borrowed funds is as follows: 2016 2015 Advances from the Federal Home Loan Bank Maximum month-end balance during the period $ 111,000 $ 110,000 Average balance during the period 86,686 64,370 Weighted average interest rate for the period 0.86 % 0.82 % Weighted average interest rate at period end 0.79 % 0.96 % Notes Payable Maximum month-end balance during the period $ — $ 10,250 Average balance during the period — 2,499 Weighted average interest rate for the period — % 3.36 % Weighted average interest rate at period end — % — %

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Schedule of Tax Expense (Benefit)	Income tax expense (benefit) consisted of: Years Ended December 31, 2016 2015 Federal Current $ 214 $ 126 Deferred 2,706 (126 ) 2,920 — State Current — — Deferred 682 — 682 — Change in valuation allowance — (37,484 ) $ 3,602 $ (37,484 )
Reconciliation of Income Tax Expense	The Company's income tax expense differed from the statutory federal rate of 34% as follows: Years Ended December 31, 2016 2015 Expected income taxes $ 3,372 $ 1,740 Income tax effect of Valuation allowance reversal — (39,759 ) Interest earned on tax-free investments and loans (39 ) (67 ) Nondeductible interest expense incurred to carry tax-free investments and loans 1 1 State income taxes, net of federal tax benefit 450 191 Earnings on Bank-owned life insurance (428 ) (304 ) Bank-owned life insurance substitution gain 208 — Nondeductible meals and health club dues 37 33 Section 382 limitations — 370 Impact of state apportionment change (10 ) 193 Other 11 118 Total income tax expense (benefit) $ 3,602 $ (37,484 )
Schedule of Components of Deferred Income Tax Assets and Liabilities	The significant components of deferred income tax assets and liabilities consisted of: December 31, 2016 December 31, 2015 Deferred tax assets Allowance for loan losses $ 3,465 $ 3,342 Deferred compensation, other 108 74 Stock based expense 66 87 Net operating loss carryforwards 30,166 34,180 Securities available-for-sale 655 405 Deferred tax credits 1,068 823 OREO valuation allowance 942 1,059 Depreciation 196 — Donation carryforward — 5 Capital loss carryforward — 4 Other 204 246 Total deferred tax assets 36,870 40,225 Deferred tax liabilities Depreciation $ — $ (58 ) Adjustments arising from acquisitions (30 ) (146 ) Mortgage servicing rights (791 ) (828 ) Federal Home Loan Bank dividend received in stock (450 ) (450 ) Deferred loan fees & costs (385 ) (399 ) Prepaid expenses (179 ) (164 ) Total deferred tax liabilities (1,835 ) (2,045 ) Valuation allowance — — Net deferred tax assets $ 35,035 $ 38,180

Share Based Compensation (Table

Share Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of the Option Plan	A status summary of the option plan as of December 31, 2016 and changes during the period ended on that date are presented below: Shares Weighted-Average Exercise Price Weighted-Average Remaining Contractual Life Aggregate Intrinsic Value Outstanding at January 1, 2015 3,156 $ 338.72 Granted — — Exercised — — Forfeited (2,824 ) 310.57 Outstanding at end of period 332 $ 578.10 0.3 years $ — Vested or expected to vest 332 $ 578.10 0.3 years $ — Options exercisable at period end 332 $ 578.10 0.3 years $ —
Schedule of Options Outstanding	Options outstanding at December 31, 2016 and year-end 2015 were as follows: Outstanding Exercisable Range of Exercise Prices Number Weighted Average Remaining Contractual Life Number Weighted Average Exercise Price December 31, 2016: $390.01 - $578.10 332 0.3 years 332 578.10 332 0.3 years 332 $ 578.10 December 31, 2015: $157.20 - $390.00 2,160 0.2 years 2,160 $ 228.33 390.01 - 578.10 996 0.9 years 996 578.10 3,156 0.4 years 3,156 $ 338.72

Regulatory Matters (Tables)

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2016
Banking and Thrift [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	Actual To Be Adequately Capitalized To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio As of December 31, 2016 Total capital (to risk-weighted assets) Centrue Financial $ 118,841 15.0 % N/A N/A N/A N/A Centrue Bank 115,455 14.5 63,556 8.0 79,445 10.0 Common equity tier I (to risk-weighted assets) Centrue Financial $ 109,434 13.8 N/A N/A N/A N/A Centrue Bank 106,551 13.4 35,750 4.5 51,639 6.5 Tier I capital (to risk-weighted assets) Centrue Financial $ 109,937 13.8 N/A N/A N/A N/A Centrue Bank 106,551 13.4 47,667 6.0 63,556 8.0 Tier I leverage ratio (to average assets) Centrue Financial $ 109,937 11.5 N/A N/A N/A N/A Centrue Bank 106,551 11.1 38,251 4.0 47,814 5.0 Actual To Be Adequately Capitalized To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio As of December 31, 2015 Total capital (to risk-weighted assets) Centrue Financial $ 118,359 15.6 % N/A N/A N/A N/A Centrue Bank 117,807 15.6 60,463 8.0 75,579 10.0 Common equity tier I (to risk-weighted assets) Centrue Financial 107,678 14.2 N/A N/A N/A N/A Centrue Bank 109,216 14.5 34,011 4.5 49,126 6.5 Tier I capital (to risk-weighted assets) Centrue Financial $ 109,768 14.5 N/A N/A N/A N/A Centrue Bank 109,216 14.5 45,347 6.0 60,463 8.0 Tier I leverage ratio (to average assets) Centrue Financial $ 109,768 12.1 N/A N/A N/A N/A Centrue Bank 109,216 12.0 36,505 4.0 45,631 5.0

Commitments, Contingencies, a40

Commitments, Contingencies, and Credit Risk (Tables)	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Financial Instruments Commitments	Financial instruments whose contract amounts represent credit risk are as follows: Standby Letters of Credit Variable Rate Commitments Fixed Rate Commitments Total Commitments Range of Rates on Fixed Rate Commitments Commitments December 31, 2016 $ 1,809 $ 89,680 $ 34,460 $ 125,949 2.60% - 18.00% December 31, 2015 1,970 120,173 29,681 151,824 2.60% - 18.00%
Schedule of Future Minimum Rental Payments for Operating Leases	Rent commitments, before considering renewal options that generally are present, were as follows: 2017 $ 315 2018 266 2019 154 2020 — Total $ 735

Condensed Financial Informati41

Condensed Financial Information - Parent Company (Tables)	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Balance Sheets (Parent Company Only)	Balance Sheets (Parent Company Only) December 31, 2016 2015 ASSETS Cash and cash equivalents $ 3,479 $ 741 Securities available-for-sale 27 27 Investment in subsidiary 128,096 135,576 Other assets 6,051 6,075 $ 137,653 $ 142,419 LIABILITIES AND STOCKHOLDERS' EQUITY Series B mandatory redeemable preferred stock $ 209 $ 268 Subordinated debentures 10,310 20,620 Other liabilities 205 250 10,724 21,138 Stockholders' equity 126,929 121,281 $ 137,653 $ 142,419
Income Statements (Parent Company Only)	Income Statements (Parent Company Only) Years Ended December 31, 2016 2015 Dividends from subsidiary $ — $ — Interest income 16 16 Other income 1,109 1,754 Interest expense 563 645 Other expense 693 1,055 Income tax benefit (51 ) (6,068 ) Equity in undistributed earnings of subsidiaries 6,396 36,464 Net income 6,316 42,602 Preferred stock dividends — 1,484 Discount on redemption of preferred stock — (13,668 ) Net income for common stockholders $ 6,316 $ 54,786
Statements of Cash Flows (Parent Company Only)	Statements of Cash Flows (Parent Company Only) Years Ended December 31, 2016 2015 Cash flows from operating activities Net income $ 6,316 $ 42,602 Adjustments to reconcile net income to net cash provided by operating activities Undistributed earnings of subsidiary (6,396 ) (36,464 ) Share based compensation 124 461 Forfeited stock options (70 ) — Gain from extinguishment of debt (1,000 ) (1,750 ) (Increase) decrease in other assets 24 (4,271 ) Decrease in other liabilities (45 ) (4,871 ) Net cash used in operating activities (1,047 ) (4,293 ) Cash flows from investing activities Capital infusion to subsidiary $ — $ (36,000 ) Proceeds from repurchase of subsidiary common stock 9,000 — Net cash provided by (used in) investing activities 9,000 (36,000 ) Cash flows from financing activities Repayment of notes payable $ — $ (8,500 ) Proceeds from issuance of common stock 4,173 68,248 Repurchase of subordinated debentures (9,000 ) — Redemption of Series C Cumulative Perpetual Preferred Stock — (19,000 ) Redemption of mandatory redeemable preferred stock (59 ) — Dividends paid on preferred stock (329 ) (478 ) Net cash provided by (used in) financing activities (5,215 ) 40,270 Net decrease in cash and cash equivalents $ 2,738 $ (23 ) Cash and cash equivalents Beginning of period 741 764 End of period $ 3,479 $ 741

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	A reconciliation of the numerators and denominators for earnings per common share computations for the years ended December 31, 2016 and 2015 is presented below. Common shares, options and per share amounts for both periods shown have been restated to reflect the impact of the reverse stock split the Company completed effective May 29 th , 2015. Options to purchase 332 and 3,156 shares of common stock were outstanding for December 31, 2016 and 2015 , respectively; but were not included in the computation of diluted earnings per share because the exercise price was greater than the average market price and, therefore, were anti-dilutive. Of the 33,321 shares of restricted stock units issued in 2016 , 3,415 shares were considered dilutive at December 31, 2016 . As of December 31, 2015 , there were no shares considered dilutive. 2016 2015 Basic Earnings Per Common Share Net income $ 6,316 $ 42,602 Preferred stock dividends (329 ) (1,484 ) Discount on redemption of preferred stock — 13,668 Net income for common shareholders $ 5,987 $ 54,786 Weighted average common shares outstanding 6,513,694 4,945,073 Basic earnings per common share $ 0.92 $ 11.08 Diluted Earnings Per Common Share Weighted average common shares outstanding 6,513,694 4,945,073 Add: dilutive effect of restricted stock units 3,415 — Weighted average common and dilutive potential shares outstanding 6,517,109 4,945,073 Diluted earnings per common share $ 0.92 $ 11.08

Quarterly Financial Data (Una43

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Data	Interest Net Interest Net Earnings Per Share Income Income Income Basic Diluted 2016 First Quarter $ 7,913 $ 7,262 $ 918 $ 0.13 $ 0.13 Second Quarter 7,862 7,216 2,128 0.31 0.31 Third Quarter 7,928 7,216 1,055 0.15 0.15 Fourth Quarter 7,985 7,292 2,215 0.33 0.33 2015 First Quarter $ 6,734 $ 6,040 $ 1,867 $ 65.60 $ 65.60 Second Quarter 7,007 6,446 1,053 0.16 0.16 Third Quarter 7,336 6,737 1,088 0.11 0.11 Fourth Quarter 7,678 7,081 38,594 5.92 5.92

Summary of Significant Accoun44

Summary of Significant Accounting Policies - Additional (Details) $ in Thousands	May 29, 2015	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Property, Plant and Equipment [Line Items]
Stock split conversion ratio	0.0333
Service fees		$ 459	$ 492
Amortization period of intangible assets		10 years
Minimum | Buildings
Property, Plant and Equipment [Line Items]
Premises and equipment useful life		25 years
Minimum | Building improvements
Property, Plant and Equipment [Line Items]
Premises and equipment useful life		3 years
Minimum | Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment useful life		3 years
Maximum | Buildings
Property, Plant and Equipment [Line Items]
Premises and equipment useful life		40 years
Maximum | Building improvements
Property, Plant and Equipment [Line Items]
Premises and equipment useful life		15 years
Maximum | Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment useful life		10 years

Summary of Significant Accoun45

Summary of Significant Accounting Policies - Stockholders' Equity (Details)	May 29, 2015	Mar. 31, 2015USD ($)$ / sharesshares	Dec. 31, 2016USD ($)$ / sharesshares	Dec. 31, 2015USD ($)shares	Dec. 31, 2014$ / sharesshares
Debt Instrument [Line Items]
Proceeds from issuance of private placement		$ 76,000,000
Proceeds from issuance of private placement, net		68,200,000
Registration costs		7,800,000
Interest paid			$ 2,650,000	$ 7,358,000
Stock redeemed during period, value				19,000,000
Payments for capital contribution to subsidiary bank		36,000,000
Preferred stock authorized (in shares) | shares			200,000
Stock split conversion ratio	0.0333
Series C Preferred Stock
Debt Instrument [Line Items]
Stock redeemed during period, value		32,700,000
Payments for repurchase of redeemable preferred stock		$ 19,000,000	$ 0	$ 19,000,000
Preferred stock authorized (in shares) | shares			0	0
Preferred stock issued (in shares) | shares			0	0
Preferred stock, shares outstanding (in shares) | shares			0	0
Dividends in arrears			$ 0	$ 0
Stock redeemed (in shares) | shares		32,668
Series D Preferred Stock
Debt Instrument [Line Items]
Preferred stock authorized (in shares) | shares					2,636
Preferred stock issued (in shares) | shares					2,636
Liquidation preference (in dollars per share) | $ / shares					$ 1,000
Preferred stock, dividend rate					12.50%
Subordinated debentures
Debt Instrument [Line Items]
Interest paid		$ 4,900,000
Secured debt
Debt Instrument [Line Items]
Notes payable, repurchased face amount		10,300,000
Repayments of lines of credit		$ 8,500,000
Private placement offering
Debt Instrument [Line Items]
Number of shares sold (in shares) | shares		6,300,000
Offering price (in dollars per share) | $ / shares		$ 12
Series B mandatory redeemable preferred stock
Debt Instrument [Line Items]
Preferred stock authorized (in shares) | shares			1,092
Preferred stock issued (in shares) | shares			209	268
Preferred stock, shares outstanding (in shares) | shares			209	268
Dividend rate (in dollars per share) | $ / shares			$ 60
Preferred stock, redemption price (in dollars per share) | $ / shares			$ 1,000
Dividends in arrears			$ 0	$ 0

Securities - Related Gross Unre

Securities - Related Gross Unrealized Gains and Losses and Amortized Cost (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 167,612	$ 172,480
Gross Unrealized Gains	446	194
Gross Unrealized Losses	(2,131)	(1,234)
Securities available-for-sale	165,927	171,440
U.S. government agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	12,680	14,629
Gross Unrealized Gains	0	13
Gross Unrealized Losses	(609)	(35)
Securities available-for-sale	12,071	14,607
States and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	9,127	10,190
Gross Unrealized Gains	2	16
Gross Unrealized Losses	(64)	(25)
Securities available-for-sale	9,065	10,181
U.S. government agency residential mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	128,550	127,039
Gross Unrealized Gains	90	7
Gross Unrealized Losses	(1,327)	(1,017)
Securities available-for-sale	127,313	126,029
Collateralized residential mortgage obligations: Agency
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	14,566	17,990
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(110)	(157)
Securities available-for-sale	14,456	17,833
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,689	2,632
Gross Unrealized Gains	354	158
Gross Unrealized Losses	(21)	0
Securities available-for-sale	$ 3,022	$ 2,790

Securities - Activity for Avail

Securities - Activity for Available-for-Sale (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Proceeds from calls and maturities	$ 13,690	$ 5,965
Proceeds from sales of securities available for sale	41,661	91,409
Realized gains	162	519
Realized losses	(20)	(180)
Net impairment loss recognized in earnings	$ 0	$ 0

Securities - Contractual Maturi

Securities - Contractual Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Amortized Cost
Due in one year or less	$ 382
Due after one year through five years	6,840
Due after five years through ten years	14,585
Due after ten years	0
Equity	2,689
Amortized Cost	167,612	$ 172,480
Fair Value
Due in one year or less	382
Due after one year through five years	6,816
Due after five years through ten years	13,938
Due after ten years	0
Equity	3,022
Securities available-for-sale	165,927	171,440
U.S. government agency residential mortgage-backed securities
Amortized Cost
Securities without single maturity date, amortized cost basis	128,550
Amortized Cost	128,550	127,039
Fair Value
Securities without single maturity date, fair value	127,313
Securities available-for-sale	127,313	126,029
Collateralized residential mortgage obligations
Amortized Cost
Securities without single maturity date, amortized cost basis	14,566
Amortized Cost	14,566	17,990
Fair Value
Securities without single maturity date, fair value	14,456
Securities available-for-sale	$ 14,456	$ 17,833

Securities - Continuous Unreali

Securities - Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	$ 125,289	$ 158,695
Available-for-sale securities, continuous unrealized loss position, less than 12 months, accumulated loss	(1,982)	(1,234)
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	9,379	0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss	(149)	0
Available-for-sale securities, continuous unrealized loss position, fair value	134,668	158,695
Available-for-sale securities, continuous unrealized loss position, accumulated loss	(2,131)	(1,234)
U.S. government agencies
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	12,071	10,394
Available-for-sale securities, continuous unrealized loss position, less than 12 months, accumulated loss	(609)	(35)
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss	0	0
Available-for-sale securities, continuous unrealized loss position, fair value	12,071	10,394
Available-for-sale securities, continuous unrealized loss position, accumulated loss	(609)	(35)
States and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	5,691	6,057
Available-for-sale securities, continuous unrealized loss position, less than 12 months, accumulated loss	(64)	(25)
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss	0	0
Available-for-sale securities, continuous unrealized loss position, fair value	5,691	6,057
Available-for-sale securities, continuous unrealized loss position, accumulated loss	(64)	(25)
U.S. government agency residential mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	92,400	124,411
Available-for-sale securities, continuous unrealized loss position, less than 12 months, accumulated loss	(1,178)	(1,017)
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	9,379	0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss	(149)	0
Available-for-sale securities, continuous unrealized loss position, fair value	101,779	124,411
Available-for-sale securities, continuous unrealized loss position, accumulated loss	(1,327)	(1,017)
Collateralized residential mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	12,559	17,833
Available-for-sale securities, continuous unrealized loss position, less than 12 months, accumulated loss	(110)	(157)
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss	0	0
Available-for-sale securities, continuous unrealized loss position, fair value	12,559	17,833
Available-for-sale securities, continuous unrealized loss position, accumulated loss	(110)	$ (157)
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	2,568
Available-for-sale securities, continuous unrealized loss position, less than 12 months, accumulated loss	(21)
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss	0
Available-for-sale securities, continuous unrealized loss position, fair value	2,568
Available-for-sale securities, continuous unrealized loss position, accumulated loss	$ (21)

Securities - Narrative (Details

Securities - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)security	Dec. 31, 2015USD ($)security
Schedule of Available-for-sale Securities [Line Items]
Carrying value of securities pledged | $	$ 116.9	$ 114.9
Total number of securities	66	59
Number of securities in an unrealized loss position	49	46
Collateralized mortgage backed securities | Investment concentration | U.S. government agency residential mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Issuer is other than U.S. Government agencies, stockholders' equity threshold	100.00%	100.00%

Loans - Classification of Loans

Loans - Classification of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 685,775	$ 633,547
Allowance for loan losses	(8,904)	(8,591)
Loans, net	676,871	624,956
Commercial Loan Portfolio | Commercial, Closed-end & Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	80,287	67,360
Commercial Loan Portfolio | Agriculture & AG RE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	49,121	50,121
Commercial Loan Portfolio | Construction, Land & Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	28,771	26,016
Commercial Loan Portfolio | Commercial Real Estate, Owner-Occupied & Non-Owner Occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	439,326	391,918
Retail Residential Loan Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	85,152	95,227
Retail Residential Loan Portfolio | Residential 1-4 family, Senior Lien & Jr. Lien and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	85,152	95,227
Retail Residential Loan Portfolio | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 3,118	$ 2,905

Loans - Internal Risk Rating (D

Loans - Internal Risk Rating (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 685,775	$ 633,547
Commercial Loan Portfolio | Internal Noninvestment Grade
Financing Receivable, Recorded Investment [Line Items]
Total Loans	597,505	535,415
Commercial Loan Portfolio | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	586,894	510,840
Commercial Loan Portfolio | Special mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	6,665	19,831
Commercial Loan Portfolio | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,946	4,744
Commercial Loan Portfolio | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Commercial Loan Portfolio | Commercial - Closed-End
Financing Receivable, Recorded Investment [Line Items]
Total Loans	25,846	24,736
Commercial Loan Portfolio | Commercial - Closed-End | Internal Noninvestment Grade
Financing Receivable, Recorded Investment [Line Items]
Total Loans	25,846	24,736
Commercial Loan Portfolio | Commercial - Closed-End | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	24,984	24,303
Commercial Loan Portfolio | Commercial - Closed-End | Special mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	687	304
Commercial Loan Portfolio | Commercial - Closed-End | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	175	129
Commercial Loan Portfolio | Commercial - Closed-End | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Commercial Loan Portfolio | Commercial - Lines of Credit
Financing Receivable, Recorded Investment [Line Items]
Total Loans	54,441	42,624
Commercial Loan Portfolio | Commercial - Lines of Credit | Internal Noninvestment Grade
Financing Receivable, Recorded Investment [Line Items]
Total Loans	54,441	42,624
Commercial Loan Portfolio | Commercial - Lines of Credit | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	53,256	42,374
Commercial Loan Portfolio | Commercial - Lines of Credit | Special mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	764	250
Commercial Loan Portfolio | Commercial - Lines of Credit | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	421	0
Commercial Loan Portfolio | Commercial - Lines of Credit | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Commercial Loan Portfolio | Agriculture & AG RE
Financing Receivable, Recorded Investment [Line Items]
Total Loans	49,121	50,121
Commercial Loan Portfolio | Agriculture & AG RE | Internal Noninvestment Grade
Financing Receivable, Recorded Investment [Line Items]
Total Loans	49,121	50,121
Commercial Loan Portfolio | Agriculture & AG RE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	49,121	50,121
Commercial Loan Portfolio | Agriculture & AG RE | Special mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Commercial Loan Portfolio | Agriculture & AG RE | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Commercial Loan Portfolio | Agriculture & AG RE | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Commercial Loan Portfolio | Construction, Land & Development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	28,771	26,016
Commercial Loan Portfolio | Construction, Land & Development | Internal Noninvestment Grade
Financing Receivable, Recorded Investment [Line Items]
Total Loans	28,771	26,016
Commercial Loan Portfolio | Construction, Land & Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	28,652	25,825
Commercial Loan Portfolio | Construction, Land & Development | Special mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	64
Commercial Loan Portfolio | Construction, Land & Development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	119	127
Commercial Loan Portfolio | Construction, Land & Development | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Commercial Loan Portfolio | Commercial Real Estate - Owner-Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	195,999	172,651
Commercial Loan Portfolio | Commercial Real Estate - Owner-Occupied | Internal Noninvestment Grade
Financing Receivable, Recorded Investment [Line Items]
Total Loans	195,999	172,651
Commercial Loan Portfolio | Commercial Real Estate - Owner-Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	194,458	164,538
Commercial Loan Portfolio | Commercial Real Estate - Owner-Occupied | Special mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,390	7,701
Commercial Loan Portfolio | Commercial Real Estate - Owner-Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	151	412
Commercial Loan Portfolio | Commercial Real Estate - Owner-Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	243,327	219,267
Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | Internal Noninvestment Grade
Financing Receivable, Recorded Investment [Line Items]
Total Loans	243,327	219,267
Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	236,423	203,679
Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | Special mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,824	11,512
Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,080	4,076
Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Retail Residential Loan Portfolio
Financing Receivable, Recorded Investment [Line Items]
Total Loans	85,152	95,227
Retail Residential Loan Portfolio | Unrated
Financing Receivable, Recorded Investment [Line Items]
Total Loans	80,333	89,699
Retail Residential Loan Portfolio | Special mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	102	4,179
Retail Residential Loan Portfolio | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	4,717	1,349
Retail Residential Loan Portfolio | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Senior Lien
Financing Receivable, Recorded Investment [Line Items]
Total Loans	46,830	53,366
Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Unrated | Senior Lien
Financing Receivable, Recorded Investment [Line Items]
Total Loans	42,772	48,319
Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Special mention | Senior Lien
Financing Receivable, Recorded Investment [Line Items]
Total Loans	89	4,011
Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Substandard | Senior Lien
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,969	1,036
Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Doubtful | Senior Lien
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Retail Residential Loan Portfolio | Residential 1-4 Family - Jr. Lien & Lines of Credit | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment [Line Items]
Total Loans	38,322	41,861
Retail Residential Loan Portfolio | Residential 1-4 Family - Jr. Lien & Lines of Credit | Unrated | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment [Line Items]
Total Loans	37,561	41,380
Retail Residential Loan Portfolio | Residential 1-4 Family - Jr. Lien & Lines of Credit | Special mention | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment [Line Items]
Total Loans	13	168
Retail Residential Loan Portfolio | Residential 1-4 Family - Jr. Lien & Lines of Credit | Substandard | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment [Line Items]
Total Loans	748	313
Retail Residential Loan Portfolio | Residential 1-4 Family - Jr. Lien & Lines of Credit | Doubtful | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 0	$ 0

Loans - Activity in the Allowan

Loans - Activity in the Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	$ 8,591	$ 7,981
Charge-offs	(1,033)	(1,763)
Recoveries	1,046	1,998
Provision	300	375
Ending Balance	8,904	8,591
Commercial, Closed-end & Lines of Credit | Commercial Loan Portfolio
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	648	1,117
Charge-offs	(38)	(384)
Recoveries	252	197
Provision	369	(282)
Ending Balance	1,231	648
Agriculture & AG RE | Commercial Loan Portfolio
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	97	69
Charge-offs	0	0
Recoveries	86	3
Provision	(63)	25
Ending Balance	120	97
Construction, Land & Development | Commercial Loan Portfolio
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	523	711
Charge-offs	0	(4)
Recoveries	32	52
Provision	90	(236)
Ending Balance	645	523
Commercial Real Estate, Owner-Occupied & Non-Owner Occupied | Commercial Loan Portfolio
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	5,681	3,999
Charge-offs	(754)	(702)
Recoveries	540	1,663
Provision	(299)	721
Ending Balance	5,168	5,681
Residential 1-4 family, Senior Lien & Jr. Lien and Lines of Credit | Retail Residential Loan Portfolio
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	1,628	2,075
Charge-offs	(237)	(667)
Recoveries	133	52
Provision	212	168
Ending Balance	1,736	1,628
Consumer | Retail Residential Loan Portfolio
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	14	10
Charge-offs	(4)	(6)
Recoveries	3	31
Provision	(9)	(21)
Ending Balance	$ 4	$ 14

Loans - Evaluated for Impairmen

Loans - Evaluated for Impairment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for loan losses:
Loans individually evaluated for impairment	$ 1,133	$ 1,594
Loans collectively evaluated for impairment	7,771	6,997
Total ending allowance balance:	8,904	8,591	$ 7,981
Loan balances:
Loans individually evaluated for impairment	2,887	6,093
Loans collectively evaluated for impairment	682,888	627,454
Total Loans	685,775	633,547
Commercial Loan Portfolio | Commercial, Closed-end & Lines of Credit
Allowance for loan losses:
Loans individually evaluated for impairment	493	80
Loans collectively evaluated for impairment	738	568
Total ending allowance balance:	1,231	648	1,117
Loan balances:
Loans individually evaluated for impairment	598	129
Loans collectively evaluated for impairment	79,689	67,231
Total Loans	80,287	67,360
Commercial Loan Portfolio | Agriculture & AG RE
Allowance for loan losses:
Loans individually evaluated for impairment	0	0
Loans collectively evaluated for impairment	120	97
Total ending allowance balance:	120	97	69
Loan balances:
Loans individually evaluated for impairment	0	0
Loans collectively evaluated for impairment	49,121	50,121
Total Loans	49,121	50,121
Commercial Loan Portfolio | Construction, Land & Development
Allowance for loan losses:
Loans individually evaluated for impairment	60	10
Loans collectively evaluated for impairment	585	513
Total ending allowance balance:	645	523	711
Loan balances:
Loans individually evaluated for impairment	129	127
Loans collectively evaluated for impairment	28,642	25,889
Total Loans	28,771	26,016
Commercial Loan Portfolio | Commercial Real Estate, Owner-Occupied & Non-Owner Occupied
Allowance for loan losses:
Loans individually evaluated for impairment	92	1,178
Loans collectively evaluated for impairment	5,076	4,503
Total ending allowance balance:	5,168	5,681	3,999
Loan balances:
Loans individually evaluated for impairment	451	4,488
Loans collectively evaluated for impairment	438,875	387,430
Total Loans	439,326	391,918
Retail Residential Loan Portfolio
Loan balances:
Total Loans	85,152	95,227
Retail Residential Loan Portfolio | Residential 1-4 family, Senior Lien & Jr. Lien and Lines of Credit
Allowance for loan losses:
Loans individually evaluated for impairment	488	325
Loans collectively evaluated for impairment	1,248	1,303
Total ending allowance balance:	1,736	1,628	2,075
Loan balances:
Loans individually evaluated for impairment	1,709	1,348
Loans collectively evaluated for impairment	83,443	93,879
Total Loans	85,152	95,227
Retail Residential Loan Portfolio | Consumer
Allowance for loan losses:
Loans individually evaluated for impairment	0	1
Loans collectively evaluated for impairment	4	13
Total ending allowance balance:	4	14	$ 10
Loan balances:
Loans individually evaluated for impairment	0	1
Loans collectively evaluated for impairment	3,118	2,904
Total Loans	$ 3,118	$ 2,905

Loans - Modified as Troubled De

Loans - Modified as Troubled Debt Restructuring (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)contract	Dec. 31, 2015USD ($)contract
Financing Receivable, Modifications [Line Items]
Number of Loans | contract	1	3
Pre-Modification Recorded Investment	$ 20	$ 241
Post-Modification Recorded Investment	$ 20	$ 241
Residential 1-4 Family - Senior Lien | Retail Residential Loan Portfolio | Senior Lien
Financing Receivable, Modifications [Line Items]
Number of Loans | contract	1	3
Pre-Modification Recorded Investment	$ 20	$ 241
Post-Modification Recorded Investment	$ 20	$ 241

Loans - Impaired Loans (Details

Loans - Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Loans with no related allowance recorded:
Recorded Investment	$ 955	$ 255
Unpaid Principal Balance	1,151	255
Average Recorded Investment	409	757
Interest Income Recognized	14	4
Cash Basis Interest Recognized	16	4
Loans with an allowance recorded:
Recorded Investment	1,932	5,838
Unpaid Principal Balance	1,931	7,268
Related Allowance	1,133	1,594
Average Recorded Investment	3,227	6,239
Interest Income Recognized	67	49
Cash Basis Interest Recognized	63	43
Recorded Investment, Total	2,887	6,093
Unpaid Principal Balance, Total	3,082	7,523
Average Recorded Investment, Total	3,636	6,996
Interest Income Recognized, Total	81	53
Cash Basis Interest Recognized, Total	79	47
Commercial - Closed-End | Commercial Loan Portfolio
Loans with no related allowance recorded:
Recorded Investment	0	2
Unpaid Principal Balance	0	2
Average Recorded Investment	0	15
Interest Income Recognized	0	1
Cash Basis Interest Recognized	0	1
Loans with an allowance recorded:
Recorded Investment	175	127
Unpaid Principal Balance	175	127
Related Allowance	110	80
Average Recorded Investment	135	199
Interest Income Recognized	4	2
Cash Basis Interest Recognized	4	2
Commercial - Lines of Credit | Commercial Loan Portfolio
Loans with no related allowance recorded:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Cash Basis Interest Recognized	0	0
Loans with an allowance recorded:
Recorded Investment	423	0
Unpaid Principal Balance	422	0
Related Allowance	383	0
Average Recorded Investment	293	0
Interest Income Recognized	26	0
Cash Basis Interest Recognized	25	0
Agriculture & AG RE | Commercial Loan Portfolio
Loans with no related allowance recorded:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	85	0
Interest Income Recognized	0	0
Cash Basis Interest Recognized	0	0
Loans with an allowance recorded:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Average Recorded Investment	80	0
Interest Income Recognized	0	0
Cash Basis Interest Recognized	0	0
Construction, Land & Development | Commercial Loan Portfolio
Loans with no related allowance recorded:
Recorded Investment	57	0
Unpaid Principal Balance	235	0
Average Recorded Investment	19	299
Interest Income Recognized	0	0
Cash Basis Interest Recognized	0	0
Loans with an allowance recorded:
Recorded Investment	72	127
Unpaid Principal Balance	72	419
Related Allowance	60	10
Average Recorded Investment	84	120
Interest Income Recognized	4	0
Cash Basis Interest Recognized	1	0
Commercial Real Estate - Owner-Occupied | Commercial Loan Portfolio
Loans with no related allowance recorded:
Recorded Investment	134	6
Unpaid Principal Balance	134	6
Average Recorded Investment	9	78
Interest Income Recognized	7	0
Cash Basis Interest Recognized	9	0
Loans with an allowance recorded:
Recorded Investment	17	406
Unpaid Principal Balance	17	541
Related Allowance	17	100
Average Recorded Investment	313	586
Interest Income Recognized	0	11
Cash Basis Interest Recognized	0	9
Commercial Real Estate - Non-Owner Occupied | Commercial Loan Portfolio
Loans with no related allowance recorded:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Cash Basis Interest Recognized	0	0
Loans with an allowance recorded:
Recorded Investment	300	4,076
Unpaid Principal Balance	300	4,955
Related Allowance	75	1,078
Average Recorded Investment	1,110	4,101
Interest Income Recognized	0	17
Cash Basis Interest Recognized	0	17
Residential 1-4 Family - Senior Lien | Retail Residential Loan Portfolio
Loans with an allowance recorded:
Related Allowance	298	215
Residential 1-4 Family - Senior Lien | Retail Residential Loan Portfolio | Senior Lien
Loans with no related allowance recorded:
Recorded Investment	331	176
Unpaid Principal Balance	349	176
Average Recorded Investment	180	277
Interest Income Recognized	0	0
Cash Basis Interest Recognized	0	0
Loans with an allowance recorded:
Recorded Investment	629	859
Unpaid Principal Balance	629	984
Average Recorded Investment	862	1,003
Interest Income Recognized	19	14
Cash Basis Interest Recognized	19	10
Residential 1-4 Family - Jr. Lien & Lines of Credit | Retail Residential Loan Portfolio
Loans with an allowance recorded:
Related Allowance	190	110
Residential 1-4 Family - Jr. Lien & Lines of Credit | Retail Residential Loan Portfolio | Jr. Lien & Lines of Credit
Loans with no related allowance recorded:
Recorded Investment	433	71
Unpaid Principal Balance	433	71
Average Recorded Investment	116	88
Interest Income Recognized	7	3
Cash Basis Interest Recognized	7	3
Loans with an allowance recorded:
Recorded Investment	316	242
Unpaid Principal Balance	316	242
Average Recorded Investment	349	230
Interest Income Recognized	14	5
Cash Basis Interest Recognized	14	5
Consumer | Retail Residential Loan Portfolio
Loans with no related allowance recorded:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Cash Basis Interest Recognized	0	0
Loans with an allowance recorded:
Recorded Investment	0	1
Unpaid Principal Balance	0	0
Related Allowance	0	1
Average Recorded Investment	1	0
Interest Income Recognized	0	0
Cash Basis Interest Recognized	$ 0	$ 0

Loans - Aging Activity (Details

Loans - Aging Activity (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 3,620	$ 9,042
Current	682,155	624,505
Total Loans	685,775	633,547
30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,837	2,755
60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	171	280
90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,612	6,007
Retail Residential Loan Portfolio
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	85,152	95,227
Commercial - Closed-End | Commercial Loan Portfolio
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	142	188
Current	25,704	24,548
Total Loans	25,846	24,736
Commercial - Closed-End | Commercial Loan Portfolio | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	20	58
Commercial - Closed-End | Commercial Loan Portfolio | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial - Closed-End | Commercial Loan Portfolio | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	122	130
Commercial - Lines of Credit | Commercial Loan Portfolio
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	54,441	42,624
Total Loans	54,441	42,624
Commercial - Lines of Credit | Commercial Loan Portfolio | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial - Lines of Credit | Commercial Loan Portfolio | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial - Lines of Credit | Commercial Loan Portfolio | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Agriculture & AG RE | Commercial Loan Portfolio
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	49,121	50,121
Total Loans	49,121	50,121
Agriculture & AG RE | Commercial Loan Portfolio | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Agriculture & AG RE | Commercial Loan Portfolio | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Agriculture & AG RE | Commercial Loan Portfolio | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Construction, Land & Development | Commercial Loan Portfolio
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	190	127
Current	28,581	25,889
Total Loans	28,771	26,016
Construction, Land & Development | Commercial Loan Portfolio | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	133	0
Construction, Land & Development | Commercial Loan Portfolio | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Construction, Land & Development | Commercial Loan Portfolio | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	57	127
Commercial Real Estate - Owner-Occupied | Commercial Loan Portfolio
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	151	1,397
Current	195,848	171,254
Total Loans	195,999	172,651
Commercial Real Estate - Owner-Occupied | Commercial Loan Portfolio | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	985
Commercial Real Estate - Owner-Occupied | Commercial Loan Portfolio | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial Real Estate - Owner-Occupied | Commercial Loan Portfolio | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	151	412
Commercial Real Estate - Non-Owner Occupied | Commercial Loan Portfolio
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	588	4,076
Current	242,739	215,191
Total Loans	243,327	219,267
Commercial Real Estate - Non-Owner Occupied | Commercial Loan Portfolio | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	588	0
Commercial Real Estate - Non-Owner Occupied | Commercial Loan Portfolio | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial Real Estate - Non-Owner Occupied | Commercial Loan Portfolio | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	4,076
Residential 1-4 Family - Senior Lien | Retail Residential Loan Portfolio | Senior Lien
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,393	2,496
Current	45,437	50,870
Total Loans	46,830	53,366
Residential 1-4 Family - Senior Lien | Retail Residential Loan Portfolio | 30 - 59 Days Past Due | Senior Lien
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	664	1,481
Residential 1-4 Family - Senior Lien | Retail Residential Loan Portfolio | 60 - 89 Days Past Due | Senior Lien
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	152	21
Residential 1-4 Family - Senior Lien | Retail Residential Loan Portfolio | 90 Days Past Due or Nonaccrual | Senior Lien
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	577	994
Residential 1-4 Family - Jr. Lien & Lines of Credit | Retail Residential Loan Portfolio | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,156	756
Current	37,166	41,105
Total Loans	38,322	41,861
Residential 1-4 Family - Jr. Lien & Lines of Credit | Retail Residential Loan Portfolio | 30 - 59 Days Past Due | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	432	230
Residential 1-4 Family - Jr. Lien & Lines of Credit | Retail Residential Loan Portfolio | 60 - 89 Days Past Due | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	19	258
Residential 1-4 Family - Jr. Lien & Lines of Credit | Retail Residential Loan Portfolio | 90 Days Past Due or Nonaccrual | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	705	268
Consumer | Retail Residential Loan Portfolio
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	2
Current	3,118	2,903
Total Loans	3,118	2,905
Consumer | Retail Residential Loan Portfolio | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	1
Consumer | Retail Residential Loan Portfolio | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	1
Consumer | Retail Residential Loan Portfolio | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 0	$ 0

Loans - Executives, Officers, D

Loans - Executives, Officers, Directors and Their Affiliates (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)
Loans and Leases Receivable, Related Parties [Roll Forward]
Beginning balance	$ 46
New loans, extensions, and modification	343
Repayments	(17)
Effect of changes in composition of related parties	0
Ending balance	$ 372

Loans - Narrative (Details)

Loans - Narrative (Details)	12 Months Ended
	Dec. 31, 2016USD ($)bank_branchcontract	Dec. 31, 2015USD ($)contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings (TDRs)	$ 150,000	$ 240,000
Financing receivable, recorded investment, nonaccrual status	130,000	240,000
Financing Receivable, Modifications, Accrual Status	$ 20,000	$ 0
Number of Loans | contract	1	3
Post-modification recorded investment	$ 20,000	$ 241,000
Impaired loans	2,887,000	6,093,000
Performing financial instruments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans	$ 1,300,000	$ 100,000
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modifications, reduction of stated interest rate, period	6 months
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modifications, reduction of stated interest rate, period	16 months
Held for sale
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of bank branches | bank_branch	3
Loans to be sold	$ 11,500,000

Fair Value - Assets and Liabili

Fair Value - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 165,927	$ 171,440
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	165,927	171,440
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	163,260	166,419
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	2,667	5,021
U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	12,071	14,607
U.S. government agencies | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	12,071	14,607
U.S. government agencies | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	12,071	14,607
States and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	9,065	10,181
States and political subdivisions | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	9,065	10,181
States and political subdivisions | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	6,398	5,160
States and political subdivisions | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	2,667	5,021
U.S. government agency residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	127,313	126,029
U.S. government agency residential mortgage-backed securities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	127,313	126,029
U.S. government agency residential mortgage-backed securities | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	127,313	126,029
Collateralized residential mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	14,456	17,833
Collateralized residential mortgage obligations | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	14,456	17,833
Collateralized residential mortgage obligations | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	14,456	17,833
Collateralized residential mortgage obligations | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	0
Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	3,022	2,790
Equity securities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	3,022	2,790
Equity securities | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 3,022	$ 2,790

Fair Value - Assets Measured at

Fair Value - Assets Measured at Fair Value on a Non-Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 2,887	$ 6,093
Other real estate owned, net	5,042	8,401
Commercial - Closed-End | Commercial Loan Portfolio | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	25
Commercial - Closed-End | Commercial Loan Portfolio | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	25
Commercial - Lines of Credit | Commercial Loan Portfolio | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	39
Commercial - Lines of Credit | Commercial Loan Portfolio | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	39
Construction, Land & Development | Commercial Loan Portfolio | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	12
Other real estate owned, net	1,867	1,140
Construction, Land & Development | Commercial Loan Portfolio | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	12
Other real estate owned, net	1,867	1,140
Commercial Real Estate - Non-Owner Occupied | Commercial Loan Portfolio | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned, net	476	468
Commercial Real Estate - Non-Owner Occupied | Commercial Loan Portfolio | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned, net	476	468
Residential 1-4 Family - Senior Lien | Retail Residential Loan Portfolio | Fair Value, Measurements, Nonrecurring | Senior Lien
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	140	572
Other real estate owned, net	163	131
Residential 1-4 Family - Senior Lien | Retail Residential Loan Portfolio | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Senior Lien
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	140	572
Other real estate owned, net	$ 163	$ 131

Fair Value - Level 3 Measuremen

Fair Value - Level 3 Measurements for Instruments Measured on a Non-Recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 2,887	$ 6,093
Other real estate owned, net	5,042	8,401
Commercial Loan Portfolio | Commercial - Closed-End | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	25
Commercial Loan Portfolio | Commercial - Closed-End | Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	25
Commercial Loan Portfolio | Commercial - Lines of Credit | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	39
Commercial Loan Portfolio | Commercial - Lines of Credit | Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	39
Commercial Loan Portfolio | Construction, Land & Development | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	12
Other real estate owned, net	1,867	1,140
Commercial Loan Portfolio | Construction, Land & Development | Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	12
Other real estate owned, net	1,867	1,140
Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned, net	476	468
Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned, net	476	468
Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Fair Value, Measurements, Nonrecurring | Senior Lien
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	140	572
Other real estate owned, net	163	131
Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Fair Value, Measurements, Nonrecurring | Level 3 | Senior Lien
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	140	572
Other real estate owned, net	$ 163	$ 131
Loans Receivable | Commercial Loan Portfolio | Commercial - Closed-End | Fair Value, Measurements, Nonrecurring | Level 3 | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	20.00%
Loans Receivable | Commercial Loan Portfolio | Commercial - Closed-End | Fair Value, Measurements, Nonrecurring | Level 3 | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	100.00%
Loans Receivable | Commercial Loan Portfolio | Commercial - Closed-End | Fair Value, Measurements, Nonrecurring | Level 3 | Weighted average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	36.00%
Loans Receivable | Commercial Loan Portfolio | Commercial - Lines of Credit | Fair Value, Measurements, Nonrecurring | Level 3 | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	20.00%
Loans Receivable | Commercial Loan Portfolio | Commercial - Lines of Credit | Fair Value, Measurements, Nonrecurring | Level 3 | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	100.00%
Loans Receivable | Commercial Loan Portfolio | Commercial - Lines of Credit | Fair Value, Measurements, Nonrecurring | Level 3 | Weighted average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	89.00%
Loans Receivable | Commercial Loan Portfolio | Construction, Land & Development | Fair Value, Measurements, Nonrecurring | Level 3 | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	10.00%
Loans Receivable | Commercial Loan Portfolio | Construction, Land & Development | Fair Value, Measurements, Nonrecurring | Level 3 | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	85.00%
Loans Receivable | Commercial Loan Portfolio | Construction, Land & Development | Fair Value, Measurements, Nonrecurring | Level 3 | Weighted average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	80.00%
Loans Receivable | Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Fair Value, Measurements, Nonrecurring | Level 3 | Senior Lien | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	10.00%	10.00%
Loans Receivable | Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Fair Value, Measurements, Nonrecurring | Level 3 | Senior Lien | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	60.00%	60.00%
Loans Receivable | Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Fair Value, Measurements, Nonrecurring | Level 3 | Senior Lien | Weighted average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	57.00%	17.00%
Other Real Estate | Commercial Loan Portfolio | Construction, Land & Development | Fair Value, Measurements, Nonrecurring | Level 3 | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	5.00%	5.00%
Other Real Estate | Commercial Loan Portfolio | Construction, Land & Development | Fair Value, Measurements, Nonrecurring | Level 3 | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	80.00%	70.00%
Other Real Estate | Commercial Loan Portfolio | Construction, Land & Development | Fair Value, Measurements, Nonrecurring | Level 3 | Weighted average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	30.00%	27.00%
Other Real Estate | Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | Fair Value, Measurements, Nonrecurring | Level 3 | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	5.00%	5.00%
Other Real Estate | Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | Fair Value, Measurements, Nonrecurring | Level 3 | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	50.00%	50.00%
Other Real Estate | Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | Fair Value, Measurements, Nonrecurring | Level 3 | Weighted average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	15.00%	16.00%
Other Real Estate | Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Fair Value, Measurements, Nonrecurring | Level 3 | Senior Lien | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	6.00%	6.00%
Other Real Estate | Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Fair Value, Measurements, Nonrecurring | Level 3 | Senior Lien | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	65.00%	55.00%
Other Real Estate | Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Fair Value, Measurements, Nonrecurring | Level 3 | Senior Lien | Weighted average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	37.00%	30.00%

Fair Value - Financial Instrume

Fair Value - Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Carrying Value
Financial assets
Cash and cash equivalents	$ 22,507	$ 27,655
Securities	165,927	171,440
Restricted securities	9,860	9,116
Loans held for sale		735
Net loans	676,871	624,956
Accrued interest receivable	2,750	3,012
Financial liabilities
Deposits	740,046	718,504
Federal funds purchased and securities sold under agreements to repurchase	11,168	18,730
Federal Home Loan Bank advances	85,000	76,000
Notes payable		0
Subordinated debentures	10,310	20,620
Series B mandatorily redeemable preferred stock	209	268
Accrued interest payable	286	235
Fair value measurements
Financial assets
Cash and cash equivalents	22,507	27,655
Securities	165,927	171,440
Loans held for sale		760
Net loans	677,832	629,017
Accrued interest receivable	2,750	3,012
Financial liabilities
Deposits	740,106	718,689
Federal funds purchased and securities sold under agreements to repurchase	11,168	18,730
Federal Home Loan Bank advances	85,039	76,271
Notes payable		0
Subordinated debentures	9,525	13,933
Series B mandatorily redeemable preferred stock	211	273
Accrued interest payable	286	235
Fair value measurements | Level 1
Financial assets
Cash and cash equivalents	22,507	27,655
Securities	0	0
Restricted securities	0	0
Loans held for sale		0
Net loans	0	0
Accrued interest receivable	0	0
Financial liabilities
Deposits	0	0
Federal funds purchased and securities sold under agreements to repurchase	0	0
Federal Home Loan Bank advances	0	0
Notes payable		0
Subordinated debentures	0	0
Series B mandatorily redeemable preferred stock	0	0
Accrued interest payable	0	0
Fair value measurements | Level 2
Financial assets
Cash and cash equivalents	0	0
Securities	163,260	166,419
Restricted securities	0	0
Loans held for sale		760
Net loans	0	0
Accrued interest receivable	511	402
Financial liabilities
Deposits	740,106	718,689
Federal funds purchased and securities sold under agreements to repurchase	11,168	18,730
Federal Home Loan Bank advances	85,039	76,271
Notes payable		0
Subordinated debentures	0	0
Series B mandatorily redeemable preferred stock	211	273
Accrued interest payable	272	169
Fair value measurements | Level 3
Financial assets
Cash and cash equivalents	0	0
Securities	2,667	5,021
Restricted securities	0	0
Loans held for sale		0
Net loans	677,832	629,017
Accrued interest receivable	2,239	2,610
Financial liabilities
Deposits	0	0
Federal funds purchased and securities sold under agreements to repurchase	0	0
Federal Home Loan Bank advances	0	0
Notes payable		0
Subordinated debentures	9,525	13,933
Series B mandatorily redeemable preferred stock	0	0
Accrued interest payable	$ 14	$ 66

Fair Value - Narrative (Details

Fair Value - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 165,927	$ 171,440
Impaired loans	2,887	6,093
Provision	300	375
Specific loan loss allocation	1,133	1,594
Other real estate owned, net	5,042	8,401
Fair value measurements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	22,507	27,655
Fair value measurements | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Fair value measurements | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	22,507	27,655
Impaired financing receivable, recent appraisal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	200	600
Provision	600	100
Specific loan loss allocation	600	300
Other real estate, recent appraisal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned, net	2,500	1,700
OREO, outstanding balance of related loan	3,700	2,900
OREO, valuation allowance	1,200
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	165,927	171,440
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	2,667	5,021
States and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	9,065	10,181
States and political subdivisions | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	9,065	10,181
States and political subdivisions | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	2,667	$ 5,021
Maturities of available-for-sale securities	$ 2,300

Loan Sales and Servicing - Loan

Loan Sales and Servicing - Loans Held for Sale (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Transfers and Servicing [Abstract]
Loans held for sale, net	$ 0	$ 735,000

Loan Sales and Servicing - Mort

Loan Sales and Servicing - Mortgage Loans Serviced for Others (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Total Mortgage Loans Serviced	$ 266,376	$ 283,921
Federal Home Loan Mortgage Corporation
Financing Receivable, Recorded Investment [Line Items]
Total Mortgage Loans Serviced	13,674	17,614
Federal National Mortgage Association
Financing Receivable, Recorded Investment [Line Items]
Total Mortgage Loans Serviced	$ 252,702	$ 266,307

Loan Sales and Servicing - Mo67

Loan Sales and Servicing - Mortgage Servicing Rights (Details) - Mortgages - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of year	$ 2,129	$ 2,240
Originated mortgage servicing rights	208	230
Amortization	(304)	(341)
Balance at end of year	$ 2,033	$ 2,129

Loan Sales and Servicing - Esti

Loan Sales and Servicing - Estimated Amortization Expense (Details) - Servicing contracts $ in Thousands	Dec. 31, 2016USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
2,017	$ 379
2,018	245
2,019	219
2,020	206
2,021	207
Finite-lived intangible assets, net	$ 1,256

Loan Sales and Servicing - Narr

Loan Sales and Servicing - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Servicing Assets at Fair Value [Line Items]
Custodial escrow balances	$ 2,470	$ 2,360
Mortgages
Servicing Assets at Fair Value [Line Items]
Fair value of capitalized mortgage servicing rights	$ 2,100	$ 2,200
Mortgages | Minimum
Servicing Assets at Fair Value [Line Items]
Discount rates	10.50%	10.50%
Prepayment speeds	12.17%	14.80%
Mortgages | Maximum
Servicing Assets at Fair Value [Line Items]
Discount rates	16.50%	16.50%
Prepayment speeds	14.25%	15.72%

Premises and Equipment (Details

Premises and Equipment (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)bank_branch	Dec. 31, 2015USD ($)
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 31,950	$ 35,705
Less accumulated depreciation	15,579	18,853
Premises and equipment, net	16,371	16,852
Depreciation	$ 1,115	1,199
Premises and equipment held for sale		5,100
Held for sale
Property, Plant and Equipment [Line Items]
Number of bank branches | bank_branch	3
Land
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 8,345	8,315
Buildings
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	14,117	14,118
Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	9,486	13,188
Work in Process
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 2	$ 84

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Banking and Thrift [Abstract]
Time certificate of deposits in denominations of $250,000 or more	$ 63,600	$ 35,200
Brokered deposits	79,900	21,300
Deposits from principal officers, directors and their affiliates	790	$ 780
Maturities of Time Deposits [Abstract]
2,017	162,545
2,018	26,387
2,019	8,654
2,020	2,183
2,021	1,403
Time deposits total	$ 201,172

Securities Sold Under Agreeme72

Securities Sold Under Agreements To Repurchase (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Banking and Thrift [Abstract]
Securities sold under agreements to repurchase, carrying value	$ 11,200	$ 18,700
U.S. government agency residential mortgage-backed securities
Offsetting Liabilities [Line Items]
Securities sold under agreements to repurchase, collateral	$ 25,400	25,300
Securities sold under agreements to repurchase, minimum percentage of collateral pledged above the gross outstanding balance	15.00%
Securities sold under agreements to repurchase
Offsetting Liabilities [Line Items]
Average daily balance during the period	$ 14,347	$ 18,144
Average interest rate during the period	0.25%	0.27%
Maximum month end balance during the period	$ 18,695	$ 20,832
Weighted average interest rate at period-end	0.19%	0.26%

Borrowed Funds and Debt Oblig73

Borrowed Funds and Debt Obligations - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)loan	Dec. 31, 2015USD ($)loan
Debt Instrument [Line Items]
Collateral pledged to Federal Home Loan Bank	$ 191,100
Federal Home Loan Bank, advances, number of variable rate interest rate advances | loan	2	0
Federal Home Loan Bank, advances, interest rate range	0.445%
Federal Home Loan Bank, advances, maturities 2017	$ 49,000	$ 11,000
FHLB advances with maturities next year	21,000	60,000
FHLB advances that matured and were renewed	10,000
Gain on extinguishment of debt	1,000	$ 1,750
Collateralized mortgage backed securities
Debt Instrument [Line Items]
Collateral pledged to Federal Home Loan Bank	$ 335,500
Minimum
Debt Instrument [Line Items]
Federal Home Loan Bank, advances, interest rate range	0.70%	0.21%
Maximum
Debt Instrument [Line Items]
Federal Home Loan Bank, advances, interest rate range	2.46%	3.64%

Borrowed Funds and Debt Oblig74

Borrowed Funds and Debt Obligations - Scheduled Maturities of Federal Home Loan Bank Advances (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Average Interest Rate
2016 / 2017	0.93%	0.70%
2017 / 2018	0.44%	1.14%
2018 / 2019	0.45%	3.64%
2019 / 2020	0.00%	0.00%
2020 / 2021	2.46%	0.00%
Thereafter		0.00%
Average Interest Rate	0.79%	0.96%
Amount
2016 / 2017	$ 21,000	$ 60,000
2017 / 2018	49,000	11,000
2018 / 2019	10,000	5,000
2019 / 2020	0	0
2020 / 2021	5,000	0
Thereafter		0
Advances from Federal Home Loan Banks	$ 85,000	$ 76,000

Borrowed Funds and Debt Oblig75

Borrowed Funds and Debt Obligations - Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Advances from the Federal Home Loan Bank
Maximum month-end balance during the period	$ 111,000	$ 110,000
Average balance during the period	$ 86,686	$ 64,370
Weighted average interest rate for the period	0.86%	0.82%
Weighted average interest rate at period end	0.79%	0.96%
Notes Payable
Maximum month-end balance during the period	$ 0	$ 10,250
Average balance during the period	$ 0	$ 2,499
Weighted average interest rate for the period	0.00%	3.36%
Weighted average interest rate at period end	0.00%	0.00%

Subordinated Debentures (Detail

Subordinated Debentures (Details)	Oct. 27, 2016	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Apr. 30, 2007USD ($)debt	Sep. 30, 2014	Apr. 30, 2004USD ($)
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Trust preferred issuance, amount		$ 209,000	$ 268,000
Subordinated debentures		10,310,000	20,620,000
Gain on extinguishment of debt		1,000,000	1,750,000
Centrue Statutory Trust II and Centrue Statutory Trust III | Other assets
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Investments		300,000
Subordinated debentures | Centrue Statutory Trust II and Centrue Statutory Trust III
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Subordinated debentures				$ 20,600,000
Trust Preferred Stock
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Interest expense on trust preferred securities		500,000	$ 500,000
Permitted default period for interest payments					5 years
Centrue Statutory Trust II and Centrue Statutory Trust III
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Stated liquidation amount per preferred security		$ 1,000
Centrue Statutory Trust II and Centrue Statutory Trust III | Subordinated debentures
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Number of trust preferred issuances (in debt) | debt				2
Trust preferred issuance, amount				$ 10,000,000		$ 10,000,000
Centrue Statutory Trust II | Trust Preferred Stock
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
LIBOR rate		0.9932%
Effective interest rate		3.64%	3.18%
Centrue Statutory Trust II | Trust Preferred Stock | London Interbank Offered Rate (LIBOR)
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Distributions, cumulative and payable quarterly at a variable rate		2.65%
Centrue Statutory Trust III | Trust Preferred Stock
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
LIBOR rate	0.8456%
Effective interest rate	2.50%		1.98%
Centrue Statutory Trust III | Trust Preferred Stock | London Interbank Offered Rate (LIBOR)
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Distributions, cumulative and payable quarterly at a variable rate	1.65%

Income Taxes - Schedule of Expe

Income Taxes - Schedule of Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Federal
Current	$ 214	$ 126
Deferred	2,706	(126)
Federal income tax expense (benefit)	2,920	0
State
Current	0	0
Deferred	682	0
State income tax expense (benefit)	682	0
Change in valuation allowance	0	(37,484)
Income tax expense (benefit)	$ 3,602	$ (37,484)

Income Taxes - Reconciliation (

Income Taxes - Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Statutory federal rate	34.00%	34.00%
Expected income taxes	$ 3,372	$ 1,740
Income tax effect of
Valuation allowance reversal	0	(39,759)
Interest earned on tax-free investments and loans	(39)	(67)
Nondeductible interest expense incurred to carry tax-free investments and loans	1	1
State income taxes, net of federal tax benefit	450	191
Earnings on Bank-owned life insurance	(428)	(304)
Bank-owned life insurance substitution gain	208	0
Nondeductible meals and health club dues	37	33
Section 382 limitations	0	370
Impact of state apportionment change	(10)	193
Other	11	118
Income tax expense (benefit)	$ 3,602	$ (37,484)

Income Taxes - Components of De

Income Taxes - Components of Deferred Assets and Liabilities (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets
Allowance for loan losses	$ 3,465,000	$ 3,342,000
Deferred compensation, other	108,000	74,000
Stock based expense	66,000	87,000
Net operating loss carryforwards	30,166,000	34,180,000
Securities available-for-sale	655,000	405,000
Deferred tax credits	1,068,000	823,000
OREO valuation allowance	942,000	1,059,000
Depreciation	196,000	0
Donation carryforward	0	5,000
Capital loss carryforward	0	4,000
Other	204,000	246,000
Total deferred tax assets	36,870,000	40,225,000
Deferred tax liabilities
Depreciation	0	(58,000)
Adjustments arising from acquisitions	(30,000)	(146,000)
Mortgage servicing rights	(791,000)	(828,000)
Federal Home Loan Bank dividend received in stock	(450,000)	(450,000)
Deferred loan fees & costs	(385,000)	(399,000)
Prepaid expenses	(179,000)	(164,000)
Total deferred tax liabilities	(1,835,000)	(2,045,000)
Valuation allowance	0	0
Net deferred tax assets	$ 35,035,000	$ 38,180,000

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Operating Loss Carryforwards [Line Items]
Valuation allowance	$ 0	$ 0	$ 0
Reversed valuation allowance on net deferred tax assets	(38,200,000)	0	39,759,000
Rate of use of the operating loss carryforward		160,000
Deferred tax credits, Alternative Minimum Tax		1,100,000
Net operating loss carryforwards		600,000
Federal | Tax year 2010
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		9,800,000
Federal | Tax year 2011
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		20,100,000
Federal | Tax year 2012
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		6,300,000
Federal | Tax year 2013
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		29,900,000
Federal | Tax year 2014
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		$ 9,200,000
State
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforward, number of years		12 years
State | Tax year 2010
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		$ 25,500,000
State | Tax year 2011
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		14,700,000
State | Tax year 2012
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		4,600,000
State | Tax year 2013
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		22,900,000
State | Tax year 2014
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		6,700,000
State | Tax year 2009
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		23,300,000
Illinois Community Bancorp, Inc. | Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 1,400,000	$ 1,300,000	$ 1,400,000

Benefit Plans (Details)

Benefit Plans (Details)	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Mar. 31, 2015USD ($)individual
Defined Contribution Plan Disclosure [Line Items]
Employer matching contribution, percent of employees' eligible wages		2.00%
Employer expense	$ 500,000	$ 300,000
Accrued liability for deferral plans	$ 710,000	$ 30,000
Executives
Defined Contribution Plan Disclosure [Line Items]
Number of executives who had a full balance payout | individual			3
Deferred compensation, aggregate payout			$ 38,010
Directors
Defined Contribution Plan Disclosure [Line Items]
Number of directors who had a partial balance payout | individual			2
Deferred compensation, aggregate payout			$ 16,850
Tranche 1
Defined Contribution Plan Disclosure [Line Items]
Employer percent match, first 3% of employee gross pay	100.00%
Employer matching contribution, percent of employees' eligible wages	3.00%
Tranche 2
Defined Contribution Plan Disclosure [Line Items]
Employer percent match, first 3% of employee gross pay	50.00%
Employer matching contribution, percent of employees' eligible wages	2.00%
Maximum
Defined Contribution Plan Disclosure [Line Items]
Employer matching contribution, percent of employees' eligible wages	4.00%

Share Based Compensation - Narr

Share Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended			12 Months Ended
	May 31, 2016	Nov. 30, 2015	Apr. 30, 2003	Dec. 31, 2016	Dec. 31, 2015	May 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost				$ 0.4
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)				40,443
Number of shares awarded (in shares)	33,321	40,443
Share price per share at grant date (in dollars per share)	$ 16.72
Shares awarded vesting period	3 years
Aggregate grant date fair value of treasury shares		$ 0.7
Fair value on grant date (in dollars per share)		$ 17.75
Compensation expense				$ 0.1	$ 0.5
2003 Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock that were reserved and available for issuance (in shares)			19,000
2003 Option Plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise period of granted options			7 years
2003 Option Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise period of granted options			10 years
2015 Stock Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)						430,000
Number of shares currently available (in shares)				356,236
Vest on May 10, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting, percentage				66.67%
Vest on May 10, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting, percentage				33.33%

Share Based Compensation - Summ

Share Based Compensation - Summary of Activity (Details)	12 Months Ended
	Dec. 31, 2016$ / sharesshares
Shares
Outstanding at beginning of the period (in shares) | shares	3,156
Granted (in shares) | shares	0
Exercised (in shares) | shares	0
Forfeited (in shares) | shares	(2,824)
Outstanding at end of period (in shares) | shares	332
Vested or expected to vest (in shares) | shares	332
Options exercisable at period end (in shares) | shares	332
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 338.72
Granted (in dollars per share) | $ / shares	0
Exercised (in dollars per share) | $ / shares	0
Forfeited (in dollars per share) | $ / shares	310.57
Outstanding at end of period (in dollars per share) | $ / shares	578.10
Vested or expected to vest (in dollars per share) | $ / shares	578.10
Options exercisable at period end (in dollars per share) | $ / shares	$ 578.10
Weighted-Average Remaining Contractual Life
Outstanding at end of period	3 months 24 days
Vested or expected to vest	3 months 24 days
Options exercisable at period end	3 months 24 days

Share Based Compensation - Rang

Share Based Compensation - Range of Exercise Prices (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Outstanding
Number (in shares)	332	3,156
Weighted Average Remaining Contractual Life	3 months 24 days	4 months 24 days
Exercisable
Number (in shares)	332	3,156
Weighted Average Exercise Price (in dollars per share)	$ 578.10	$ 338.72
$390.01 - $578.10
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range Limit (in dollars per share)	390.01	390.01
Range of Exercise Prices, Upper Range Limit (in dollars per share)	$ 578.10	$ 578.10
Outstanding
Number (in shares)	332	996
Weighted Average Remaining Contractual Life	3 months 24 days	10 months 18 days
Exercisable
Number (in shares)	332	996
Weighted Average Exercise Price (in dollars per share)	$ 578.10	$ 578.10
$157.20 - $390.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range Limit (in dollars per share)		157.20
Range of Exercise Prices, Upper Range Limit (in dollars per share)		$ 390
Outstanding
Number (in shares)		2,160
Weighted Average Remaining Contractual Life		2 months 24 days
Exercisable
Number (in shares)		2,160
Weighted Average Exercise Price (in dollars per share)		$ 228.33

Regulatory Matters (Details)

Regulatory Matters (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015USD ($)election	Dec. 31, 2016USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Available election to opt out, accepted | election	1
Centrue Financial
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets), actual amount	$ 118,359	$ 118,841
Total capital (to risk-weighted assets), actual ratio	15.60%	15.00%
Common equity tier I (to risk-weighted assets), actual amount	$ 107,678	$ 109,434
Common equity tier I (to risk-weighted assets), actual ratio	14.20%	13.80%
Tier I capital (to risk-weighted assets), actual amount	$ 109,768	$ 109,937
Tier I capital (to risk-weighted assets), actual ratio	14.50%	13.80%
Tier I leverage ratio (to average assets), actual amount	$ 109,768	$ 109,937
Tier I leverage ratio (to average assets), actual ratio	12.10%	11.50%
Centrue Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets), actual amount	$ 117,807	$ 115,455
Total capital (to risk-weighted assets), actual ratio	15.60%	14.50%
Total capital (to risk-weighted assets), to be adequately capitalized, amount	$ 60,463	$ 63,556
Total capital (to risk-weighted assets), to be adequately capitalized, ratio	8.00%	8.00%
Total capital (to risk-weighted assets), to be well capitalized under prompt corrective action provisions, amount	$ 75,579	$ 79,445
Total capital (to risk-weighted assets), to be well capitalized under prompt corrective action provisions, ratio	10.00%	10.00%
Common equity tier I (to risk-weighted assets), actual amount	$ 109,216	$ 106,551
Common equity tier I (to risk-weighted assets), actual ratio	14.50%	13.40%
Common equity tier I (to risk-weighted assets), to be adequately capitalized, amount	$ 34,011	$ 35,750
Common equity tier I (to risk-weighted assets), to be adequately capitalized, ratio	4.50%	4.50%
Common equity tier I (to risk-weighted assets), to be well capitalized under prompt corrective action provisions, amount	$ 49,126	$ 51,639
Common equity tier I (to risk-weighted assets), to be well capitalized under prompt corrective action provisions, ratio	6.50%	6.50%
Tier I capital (to risk-weighted assets), actual amount	$ 109,216	$ 106,551
Tier I capital (to risk-weighted assets), actual ratio	14.50%	13.40%
Tier I capital (to risk-weighted assets), to be adequately capitalized, amount	$ 45,347	$ 47,667
Tier I capital (to risk-weighted assets), to be adequately capitalized, ratio	6.00%	6.00%
Tier I capital (to risk-weighted assets), to be well capitalized under prompt corrective action provisions, amount	$ 60,463	$ 63,556
Tier I capital (to risk-weighted assets), to be well capitalized under prompt corrective action provisions, ratio	8.00%	8.00%
Tier I leverage ratio (to average assets), actual amount	$ 109,216	$ 106,551
Tier I leverage ratio (to average assets), actual ratio	12.00%	11.10%
Tier I leverage ratio (to average assets), to be adequately capitalized, amount	$ 36,505	$ 38,251
Tier I leverage ratio (to average assets), to be adequately capitalized, ratio	4.00%	4.00%
Tier I leverage ratio (to average assets), to be well capitalized under prompt corrective action provisions, amount	$ 45,631	$ 47,814
Tier I leverage ratio (to average assets), to be well capitalized under prompt corrective action provisions, ratio	5.00%	5.00%

Commitments, Contingencies, a86

Commitments, Contingencies, and Credit Risk - Receivables (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Standby Letters of Credit	$ 1,809	$ 1,970
Variable Rate Commitments	89,680	120,173
Fixed Rate Commitments	34,460	29,681
Total Commitments	$ 125,949	$ 151,824
Range of Rates on Fixed Rate Commitments, Minimum	2.60%	2.60%
Range of Rates on Fixed Rate Commitments, Maximum	18.00%	18.00%

Commitments, Contingencies, a87

Commitments, Contingencies, and Credit Risk - Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 320	$ 310
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2,017	315
2,018	266
2,019	154
2,020	0
Total	$ 735

Condensed Financial Informati88

Condensed Financial Information - Parent Company - Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015		Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 22,507	$ 27,655		$ 49,167
Securities available-for-sale	165,927	171,440
Other assets	8,147	9,098
Total assets	977,779	961,218
LIABILITIES AND STOCKHOLDERS' EQUITY
Preferred stock	209	268
Subordinated debentures	10,310	20,620
Other liabilities	4,117	5,815
Total liabilities	850,850	839,937
Total stockholders' equity	126,929	121,281	[1]	30,328
Total liabilities and stockholders' equity	977,779	961,218
Parent Company
ASSETS
Cash and cash equivalents	3,479	741		$ 764
Securities available-for-sale	27	27
Investment in subsidiary	128,096	135,576
Other assets	6,051	6,075
Total assets	137,653	142,419
LIABILITIES AND STOCKHOLDERS' EQUITY
Subordinated debentures	10,310	20,620
Other liabilities	205	250
Total liabilities	10,724	21,138
Total stockholders' equity	126,929	121,281
Total liabilities and stockholders' equity	137,653	142,419
Parent Company | Series B mandatory redeemable preferred stock
LIABILITIES AND STOCKHOLDERS' EQUITY
Preferred stock	$ 209	$ 268
[1]	Share and per share amounts have been adjusted to reflect the Company's 1:30 reverse stock split effective May 29, 2015.

Condensed Financial Informati89

Condensed Financial Information - Parent Company - Income Statements (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Condensed Income Statements, Captions [Line Items]
Interest income	$ 7,985	$ 7,928	$ 7,862	$ 7,913	$ 7,678	$ 7,336	$ 7,007	$ 6,734	$ 31,688	$ 28,755
Other income									12,746	12,428
Interest expense									2,702	2,451
Other expense									31,514	33,239
Income tax expense (benefit)									3,602	(37,484)
Net income	$ 2,215	$ 1,055	$ 2,128	$ 918	$ 38,594	$ 1,088	$ 1,053	$ 1,867	6,316	42,602
Preferred stock dividends									329	1,484
Discount on redemption of preferred stock									0	(13,668)
Net income for common stockholders									5,987	54,786
Parent Company
Condensed Income Statements, Captions [Line Items]
Dividends from subsidiary									0	0
Interest income									16	16
Other income									1,109	1,754
Interest expense									563	645
Other expense									693	1,055
Income tax expense (benefit)									(51)	(6,068)
Equity in undistributed earnings of subsidiaries									6,396	36,464
Net income									6,316	42,602
Preferred stock dividends									0	1,484
Discount on redemption of preferred stock									0	(13,668)
Net income for common stockholders									$ 6,316	$ 54,786

Condensed Financial Informati90

Condensed Financial Information - Parent Company - Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities
Net income	$ 2,215	$ 1,055	$ 2,128	$ 918	$ 38,594	$ 1,088	$ 1,053	$ 1,867	$ 6,316	$ 42,602
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Gain on extinguishment of debt									(1,000)	(1,750)
(Increase) decrease in other assets									122	338
Increase (decrease) in other liabilities									(281)	(3,624)
Net cash (used in) provided by operating activities									10,655	6,466
Cash flows from investing activities
Proceeds from sales of securities available for sale									41,661	91,409
Net cash (used in) provided by investing activities									(79,732)	(135,967)
Cash flows from financing activities
Repayment of notes payable									0	(8,500)
Proceeds from issuance of common stock									0	68,248
Repurchase of subordinated debentures									(9,000)	0
Dividends paid on preferred stock									(329)	(478)
Net cash provided by (used in) financing activities									63,929	107,989
Cash and cash equivalents									(5,148)	(21,512)
Beginning of period				27,655				49,167	27,655	49,167
End of period	22,507				27,655				22,507	27,655
Parent Company
Cash flows from operating activities
Net income									6,316	42,602
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Undistributed earnings of subsidiary									(6,396)	(36,464)
Share based compensation									124	461
Forfeited stock options									(70)	0
Gain on extinguishment of debt									(1,000)	(1,750)
(Increase) decrease in other assets									24	(4,271)
Increase (decrease) in other liabilities									(45)	(4,871)
Net cash (used in) provided by operating activities									(1,047)	(4,293)
Cash flows from investing activities
Capital infusion to subsidiary									0	(36,000)
Proceeds from sales of securities available for sale									9,000	0
Net cash (used in) provided by investing activities									9,000	(36,000)
Cash flows from financing activities
Repayment of notes payable									0	(8,500)
Proceeds from issuance of common stock									4,173	68,248
Repurchase of subordinated debentures									(9,000)	0
Redemption of Series C Cumulative Perpetual Preferred Stock									0	(19,000)
Redemption of mandatory redeemable preferred stock									(59)	0
Dividends paid on preferred stock									(329)	(478)
Net cash provided by (used in) financing activities									(5,215)	40,270
Cash and cash equivalents									2,738	(23)
Beginning of period				$ 741				$ 764	741	764
End of period	$ 3,479				$ 741				$ 3,479	$ 741

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Earnings Per Share [Abstract]
Anti-dilutive options excluded from computation of diluted earnings per share (in shares)									332	3,156
Restricted stock issued during period (in shares)									33,321
Basic Earnings Per Common Share
Net income	$ 2,215	$ 1,055	$ 2,128	$ 918	$ 38,594	$ 1,088	$ 1,053	$ 1,867	$ 6,316	$ 42,602
Preferred stock dividends									(329)	(1,484)
Discount on redemption of preferred stock									0	13,668
Net income for common stockholders									$ 5,987	$ 54,786
Weighted average common shares outstanding (in shares)									6,513,694	4,945,073
Basic earnings per common share (in dollars per share)	$ 0.33	$ 0.15	$ 0.31	$ 0.13	$ 5.92	$ 0.11	$ 0.16	$ 65.60	$ 0.92	$ 11.08	[1]
Diluted Earnings Per Common Share
Weighted average common shares outstanding (in shares)									6,513,694	4,945,073
Add: dilutive effect of restricted stock units (in shares)									3,415	0
Weighted average common and dilutive potential shares outstanding (in shares)									6,517,109	4,945,073
Diluted earnings (loss) per common share (in dollars per share)	$ 0.33	$ 0.15	$ 0.31	$ 0.13	$ 5.92	$ 0.11	$ 0.16	$ 65.60	$ 0.92	$ 11.08	[1]
[1]	Share and per share amounts have been adjusted to reflect the Company's 1:30 reverse stock split effective May 29, 2015.

Quarterly Financial Data (Una92

Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Interest Income	$ 7,985	$ 7,928	$ 7,862	$ 7,913	$ 7,678	$ 7,336	$ 7,007	$ 6,734	$ 31,688	$ 28,755
Net Interest Income	7,292	7,216	7,216	7,262	7,081	6,737	6,446	6,040	28,986	26,304
Net Income	$ 2,215	$ 1,055	$ 2,128	$ 918	$ 38,594	$ 1,088	$ 1,053	$ 1,867	$ 6,316	$ 42,602
Basic earnings per common share (in dollars per share)	$ 0.33	$ 0.15	$ 0.31	$ 0.13	$ 5.92	$ 0.11	$ 0.16	$ 65.60	$ 0.92	$ 11.08	[1]
Diluted earnings (loss) per common share (in dollars per share)	$ 0.33	$ 0.15	$ 0.31	$ 0.13	$ 5.92	$ 0.11	$ 0.16	$ 65.60	$ 0.92	$ 11.08	[1]
[1]	Share and per share amounts have been adjusted to reflect the Company's 1:30 reverse stock split effective May 29, 2015.

Business Acquisitions and Div93

Business Acquisitions and Divestitures (Details) $ in Millions	Jun. 17, 2016USD ($)
Held for sale
Business Acquisition [Line Items]
Reduction in deposits, sale of branch	$ 51.7
Reduction of loans, sale of branch	13.1
Reduction of fixed assets, sale of branch	5.1
Fairview Heights, Aviston and St. Rose, Illinois
Business Acquisition [Line Items]
Net gain on sale of branch	$ 1.1

Subsequent Events (Details)

Subsequent Events (Details) - Midland - Subsequent Event - Centrue Financial $ / shares in Units, $ in Millions	Jan. 26, 2017USD ($)$ / shares
Subsequent Event [Line Items]
Estimated total consideration | $	$ 175.1
Price per share (in dollars per share) | $ / shares	$ 26.75

Uncategorized Items - cfcb-2016

Label	Element	Value
Centrue Statutory Trust II [Member] | Subordinated Debentures Subject to Mandatory Redemption [Member]
Subordinated Debt	us-gaap_SubordinatedDebt	$ 10,300,000
Centrue Statutory Trust III [Member] | Subordinated Debentures Subject to Mandatory Redemption [Member]
Gain (Loss) on Extinguishment of Debt	us-gaap_GainsLossesOnExtinguishmentOfDebt	1,000,000
Payments for Repurchase of Trust Preferred Securities	us-gaap_PaymentsForRepurchaseOfTrustPreferredSecurities	$ 9,300,000