County Bancorp (ICBK) 10-Q 9 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	May 09, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	County Bancorp, Inc.
Entity Central Index Key	1,470,205
Trading Symbol	ICBK
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Amendment Flag	false
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Entity Common Stock, Shares Outstanding		6,690,063

CONSOLIDATED BALANCE SHEETS (Un

CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 90,676	$ 66,771
Securities available-for-sale, at fair value	141,360	126,030
FHLB Stock, at cost	3,908	4,138
Loans held for sale	6,407	6,575
Loans, net of allowance for loan losses of $14,612 as of March 31, 2018; $13,247 as of December 31, 2017	1,149,913	1,135,704
Premises and equipment, net	14,459	9,662
Loan servicing rights	8,959	8,950
Other real estate owned, net	9,379	4,962
Cash surrender value of bank owned life insurance	17,501	17,389
Deferred tax asset, net	4,145	3,265
Goodwill	5,038	5,038
Accrued interest receivable and other assets	7,706	7,642
Total assets	1,460,257	1,397,045
Deposits:
Noninterest-bearing	101,167	125,584
Interest-bearing	1,071,223	984,493
Total deposits	1,172,390	1,110,077
Other borrowings	1,241	1,299
Advances from FHLB	120,500	121,500
Subordinated debentures	15,540	15,523
Accrued interest payable and other liabilities	7,772	7,660
Total liabilities	1,317,443	1,256,059
SHAREHOLDERS' EQUITY
Preferred stock-variable rate, non-cumulative, nonparticipating, $1,000 stated value; 15,000 shares authorized; 8,000 shares issued at March 31, 2018 and December 31, 2017	8,000	8,000
Common stock - $0.001 par value; 50,000,000 authorized; 7,127,025 shares issued and 6,684,923 shares outstanding at March 31, 2018; 7,112,962 shares issued and 6,673,381 shares outstanding at December 31, 2017	7	28
Surplus	52,475	52,230
Retained earnings	90,000	86,385
Treasury stock, at cost; 442,102 shares at March 31, 2018; 439,581 shares at December 31, 2017	(5,030)	(5,030)
Accumulated other comprehensive loss	(2,638)	(627)
Total shareholders' equity	142,814	140,986
Total liabilities and shareholders' equity	1,460,257	1,397,045
Core Deposit
ASSETS
Core deposit intangible, net of accumulated amortization of $995 as of March 31, 2018; $882 as of December 31, 2017	$ 806	$ 919

CONSOLIDATED BALANCE SHEETS (U3

CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Allowance for loan losses	$ 14,612	$ 13,247
Preferred Stock, stated value	$ 1,000	$ 1,000
Preferred Stock, shares authorized	15,000	15,000
Preferred Stock, shares issued	8,000	8,000
Common Stock, par value	$ 0.001	$ 0.001
Common Stock, shares authorized	50,000,000	50,000,000
Common Stock, shares issued	7,127,025	7,112,962
Common Stock, shares outstanding	6,684,923	6,673,381
Treasury Stock, shares	442,102	439,581
Core Deposit
Core deposit intangible, amortization	$ 995	$ 882

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
INTEREST AND DIVIDEND INCOME
Loans, including fees	$ 13,691	$ 11,554
Taxable securities	632	425
Tax-exempt securities	157	97
Federal funds sold and other	213	60
Total interest and dividend income	14,693	12,136
INTEREST EXPENSE
Deposits	3,796	2,437
FHLB advances and other borrowed funds	484	381
Subordinated debentures	143	120
Total interest expense	4,423	2,938
Net interest income	10,270	9,198
Provision for loan losses	97	761
Net interest income after provision for loan losses	10,173	8,437
NON-INTEREST INCOME
Services charges	365	325
Gain on sale of loans, net	32	25
Loan servicing fees	1,462	1,205
Other	181	161
Total non-interest income	2,040	1,716
NON-INTEREST EXPENSE
Employee compensation and benefits	4,218	4,057
Occupancy	204	177
Information processing	465	362
Other	1,898	1,299
Total non-interest expense	6,785	5,895
Income before income taxes	5,428	4,258
Income tax expense	1,374	1,626
NET INCOME	$ 4,054	$ 2,632
NET INCOME PER SHARE:
Basic	$ 0.59	$ 0.39
Diluted	0.58	0.38
Dividends paid per share	$ 0.07	$ 0.06

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 4,054	$ 2,632
Other comprehensive income:
Unrealized gain (loss) on securities available-for-sale	(2,543)	333
Income tax benefit (expense)	658	(130)
Total other comprehensive income	(1,885)	203
Comprehensive income	$ 2,169	$ 2,835

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Surplus	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2016	$ 131,288	$ 8,000	$ 26	$ 50,553	$ 77,907	$ (4,828)	$ (370)
Net income	2,632				2,632
Other comprehensive income	203						203
Stock compensation expense, net of tax	109			109
Cash dividends declared on common stock	(397)				(397)
Cash dividends declared on preferred stock	(82)				(82)
Proceeds from exercise of common stock options	321		1	320
Balance at Mar. 31, 2017	134,074	8,000	27	50,982	80,060	(4,828)	(167)
Balance at Dec. 31, 2017	140,986	8,000	28	52,230	86,385	(5,030)	(627)
Net income	4,054				4,054
Other comprehensive income	(1,885)						(1,885)
Stock compensation expense, net of tax	117			117
Cash dividends declared on common stock	(468)				(468)
Cash dividends declared on preferred stock	(97)				(97)
Reclassification of par value to surplus			(21)	21
Reclassification of stranded tax effects of rate change					126		(126)
Proceeds from exercise of common stock options	107			107
Balance at Mar. 31, 2018	$ 142,814	$ 8,000	$ 7	$ 52,475	$ 90,000	$ (5,030)	$ (2,638)

CONSOLIDATED STATEMENTS OF STO7

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement Of Stockholders Equity [Abstract]
Options, exercised	2,952	22,657

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities
Net income	$ 4,054	$ 2,632
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization of premises and equipment	271	231
Amortization of core deposit intangible	113	141
Amortization of subordinated debentures discount	17	19
Provision for loan losses	97	761
Realized gain on sales of other real estate owned		(375)
Realized gain on sales of premises and equipment	(1)	(38)
Increase in cash surrender value of bank owned life insurance	(112)	(97)
Deferred income tax benefit	(187)	(289)
Stock compensation expense, net	117	109
Net amortization of securities	234	256
Net change in:
Accrued interest receivable and other assets	(64)	(163)
Loans held for sale	168	(1,679)
Loan servicing rights	(9)	205
Accrued interest payable and other liabilities	77	107
Net cash provided by operating activities	4,775	1,820
Cash flows from investing activities
Proceeds from maturities, principal repayments, and call of securities available for sale	6,948	10,438
Purchases of securities available-for-sale	(25,055)	(2,352)
Redemption of FHLB stock	230	1,564
Purchases of bank owned life insurance		(5,500)
Loan originations and principal collections, net	(18,723)	(23,013)
Proceeds from sales of premises and equipment		75
Purchases of premises and equipment	(5,067)	(1,252)
Proceeds from sales of other real estate owned		1,052
Net cash used in investing activities	(41,667)	(18,988)
Cash flows from financing activities
Net decrease in demand and savings deposits	(28,144)	(34,072)
Net increase in certificates of deposits	90,457	37,871
Net change in other borrowings	(58)	(372)
Proceeds from FHLB advances	63,000	84,660
Repayment of FHLB advances	(64,000)	(82,255)
Proceeds from issuance of common stock	107	321
Dividends paid on preferred stock	(97)	(82)
Dividends paid on common stock	(468)	(397)
Net cash provided by financing activities	60,797	5,674
Net change in cash and cash equivalents	23,905	(11,494)
Cash and cash equivalents, beginning of period	66,771	42,679
Cash and cash equivalents, end of period	90,676	31,185
Cash paid during the period for:
Interest	4,187	2,737
Noncash investing activities:
Transfer from loans to other real estate owned	4,417	4,511
Loans charged off	$ 42	$ 17

BASIS OF PRESENTATION

BASIS OF PRESENTATION	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
BASIS OF PRESENTATION	NOTE 1 – BASIS OF PRESENTATION The unaudited consolidated financial statements of County Bancorp, Inc. (“we,” “us,” ”our,” or the “Company”) and its subsidiaries, including Investors Community Bank (the “Bank”), have been prepared, in the opinion of management, to reflect all adjustments necessary for a fair presentation of the financial position, results of operations, and cash flows as of and for the three months ended March 31, 2018. The results of operations for the three months ended March 31, 2018 may not necessarily be indicative of the results to be expected for the year ending December 31, 2018, or for any other period. Management of the Company is required to make estimates and assumptions which affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements, as well as the reported amounts of income and expenses during the reported periods. Actual results could differ significantly from those estimates. These unaudited interim financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”). Certain information in footnote disclosure normally included in financial statements prepared in accordance with GAAP has been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). These financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. The Company qualifies as an “emerging growth company” under the Jumpstart Our Business Startups Act (the “JOBS Act”). Section 107 of the JOBS Act provides that an emerging growth company can take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act of 1933, as amended (the “Securities Act”), for complying with new or revised accounting standards. As an emerging growth company, the Company can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. The Company elected to take advantage of the benefits of this extended transition period. New Accounting Pronouncements In April 2016, the Financial Accounting Standards Board (the “FASB”) issued ASU No. 2016-10, Revenue from Contracts with Customers (Topic 606) In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments – Credit Losses In March 2017, the FASB issued updated guidance codified within ASU No. 2017-08, Receivables – Nonrefundable Fees and Other Costs In May 2017, the FASB issued updated guidance codified within ASU No. 2017-09, Compensation – Stock Compensation . In July 2017, the FASB issued ASU No. 2017-11, Earnings Per Share – Accounting for Certain Financial Instruments with Down Round Features In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815) In September 2017, the FASB issued updated guidance codified within ASU No. 2017-13, Revenue Recognition, Revenue from Contracts with Customers, Leases (Topic 840), and Leases (Topic 842) Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers Revenue from Contracts with Customers In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income

EARNINGS PER SHARE

EARNINGS PER SHARE	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
EARNINGS PER SHARE	NOTE 2 – EARNINGS PER SHARE Earnings per common share is computed using the two-class method. Basic earnings per common share is computed by dividing net income by the weighted-average number of common shares outstanding during the applicable period. Diluted earnings per share is computed using the weighted-average number of shares determined for the basic earnings per common share plus the dilutive effect of share-based compensation using the treasury stock method. For the Three Months Ended March 31, 2018 2017 (dollars in thousands) Net income from continuing operations $ 4,054 $ 2,632 Less: preferred stock dividends 97 82 Income available to common shareholders for basic earnings per common share $ 3,957 $ 2,550 Average number of common shares issued 7,347,836 7,319,565 Less: weighted average treasury shares 439,833 432,229 Less: weighted average nonvested equity incentive plan shares 229,842 291,574 Weighted average number of common shares outstanding 6,678,161 6,595,762 Effect of dilutive options 90,804 131,740 Weighted average number of common shares outstanding used to calculate diluted earnings per common share 6,768,965 6,727,502

SECURITIES AVAILABLE-FOR-SALE

SECURITIES AVAILABLE-FOR-SALE	3 Months Ended
	Mar. 31, 2018
Investments Debt And Equity Securities [Abstract]
SECURITIES AVAILABLE-FOR-SALE	NOTE 3 – SECURITIES AVAILABLE-FOR-SALE The amortized cost and fair value of securities available-for-sale as of March 31, 2018 and December 31, 2017 were as follows: Amortized Unrealized Unrealized Fair Cost Gains Losses Value (dollars in thousands) March 31, 2018 U.S. government and agency securities $ 4,717 $ — $ (28 ) $ 4,689 Municipal securities 34,394 3 (759 ) 33,638 Mortgage-backed securities 105,827 46 (2,840 ) 103,033 $ 144,938 $ 49 $ (3,627 ) $ 141,360 December 31, 2017 U.S. government and agency securities $ 4,874 $ 82 $ — $ 4,956 Municipal securities 33,949 56 (240 ) 33,765 Mortgage-backed securities 88,242 64 (997 ) 87,309 $ 127,065 $ 202 $ (1,237 ) $ 126,030 The amortized cost and fair value of securities at March 31, 2018 and December 31, 2017, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Amortized Fair Cost Value (dollars in thousands) March 31, 2018 Due in one year or less $ 7,652 $ 7,632 Due from one to five years 8,646 8,531 Due from five to ten years 9,834 9,670 Due after ten years 12,979 12,494 Mortgage-backed securities 105,827 103,033 $ 144,938 $ 141,360 December 31, 2017 Due in one year or less $ 7,990 $ 7,980 Due from one to five years 10,494 10,470 Due from five to ten years 11,482 11,494 Due after ten years 8,857 8,777 Mortgage-backed securities 88,242 87,309 $ 127,065 $ 126,030 There were no security sales for the three months ended March 31, 2018 and 2017. At March 31, 2018 and December 31, 2017, no securities were pledged to secure the FHLB advances besides FHLB stock of $3.9 million and $4.1 million, respectively. At March 31, 2018 and December 31, 2017, the carrying amount of securities pledged to secure the Federal Reserve Bank Line of Credit was $0 and $8.6 million, respectively. The following table shows the gross unrealized losses and fair value of the Company’s investments with unrealized losses that are not deemed to be other-than-temorarily impaired, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at March 31, 2018 and December 31, 2017: Less Than 12 Months 12 Months or Greater Total Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses (dollars in thousands) March 31, 2018 U.S. government and agency securities $ 4,689 $ (29 ) $ — $ — $ 4,689 $ (29 ) Municipal securities 30,175 (738 ) 1,348 (20 ) 31,523 (758 ) Mortgage-backed securities 80,843 (2,126 ) 15,496 (714 ) 96,339 (2,840 ) $ 115,707 $ (2,893 ) $ 16,844 $ (734 ) $ 132,551 $ (3,627 ) December 31, 2017 Municipal securities $ 25,280 $ (224 ) $ 1,354 $ (16 ) $ 26,634 $ (240 ) Mortgage-backed securities 54,278 (521 ) 16,466 (476 ) 70,744 (997 ) $ 79,558 $ (745 ) $ 17,820 $ (492 ) $ 97,378 $ (1,237 ) The unrealized loss on the investments at March 31, 2018 and December 31, 2017 was due to normal fluctuations and pricing inefficiencies. The contractual terms of the investments do not permit the issuers to settle the securities at a price less than the amortized cost basis of the investment. Because the Company does not intend to sell the investments and it is not more-likely-than-not that the Company will be required to sell the investments before recovery of the amortized cost basis, which may be maturity, the Company does not consider these investments to be other-than-temporarily impaired at March 31, 2018 and December 31, 2017.

LOANS

LOANS	3 Months Ended
	Mar. 31, 2018
Receivables [Abstract]
LOANS	NOTE 4 – LOANS The components of loans were as follows: March 31, December 31, 2018 2017 (dollars in thousands) Agricultural loans $ 698,106 $ 686,430 Commercial real estate loans 292,271 292,704 Commercial loans 113,825 114,332 Residential real estate loans 60,026 55,138 Installment and consumer other 297 347 Total gross loans 1,164,525 1,148,951 Allowance for loan losses (14,612 ) (13,247 ) Net loans $ 1,149,913 $ 1,135,704 Changes in the allowance for loan losses by portfolio segment for the three months ended March 31, 2018 and 2017 were as follows: Agricultural Commercial Real Estate Commercial Residential Real Estate Installment and Consumer Other Total (dollars in thousands) March 31, 2018 Balance, beginning of year $ 9,712 $ 1,978 $ 1,508 $ 47 $ 2 $ 13,247 Provision for loan losses 1,537 (1,118 ) (319 ) (2 ) (1 ) 97 Loans charged off — (42 ) — — — (42 ) Recoveries 1 1,240 68 — 1 1,310 Balance, end of period $ 11,250 $ 2,058 $ 1,257 $ 45 $ 2 $ 14,612 March 31, 2017 Balance, beginning of year $ 8,173 $ 2,762 $ 1,239 $ 470 $ 1 $ 12,645 Provision for loan losses 132 180 424 25 — 761 Loans charged off — — (17 ) — — (17 ) Recoveries — 13 26 — — 39 Balance, end of period $ 8,305 $ 2,955 $ 1,672 $ 495 $ 1 $ 13,428 The following tables present the balances in the allowance for loan losses and the recorded balance in loans by portfolio segment and based on impairment method as of March 31, 2018 and December 31, 2017: March 31, 2018 Individually Evaluated for Impairment Collectively Evaluated for Impairment Total (dollars in thousands) Allowance for loan losses: Agricultural loans $ 2,419 $ 8,831 $ 11,250 Commercial real estate loans — 2,058 2,058 Commercial loans 273 984 1,257 Residential real estate loans — 45 45 Installment and consumer other — 2 2 Total ending allowance for loan losses 2,692 11,920 14,612 Loans: Agricultural loans 35,545 662,561 698,106 Commercial real estate loans 575 291,696 292,271 Commercial loans 1,153 112,672 113,825 Residential real estate loans 114 59,912 60,026 Installment and consumer other — 297 297 Total loans 37,387 1,127,138 1,164,525 Net loans $ 34,695 $ 1,115,218 $ 1,149,913 December 31, 2017 Individually Evaluated for Impairment Collectively Evaluated for Impairment Total (dollars in thousands) Allowance for loan losses: Agricultural loans $ 1,026 $ 8,686 $ 9,712 Commercial real estate loans - 1,978 1,978 Commercial loans 410 1,098 1,508 Residential real estate loans — 47 47 Installment and consumer other — 2 2 Total ending allowance for loan losses 1,436 11,811 13,247 Loans: Agricultural loans 28,744 657,686 686,430 Commercial real estate loans 2,465 290,239 292,704 Commercial loans 1,793 112,539 114,332 Residential real estate loans — 55,138 55,138 Installment and consumer other — 347 347 Total loans 33,002 1,115,949 1,148,951 Net loans $ 31,566 $ 1,104,138 $ 1,135,704 The following table presents the aging of the recorded investment in past due loans at March 31, 2018 and December 31, 2017: 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Loans Not Past Due Total Loans (dollars in thousands) March 31, 2018 Agricultural loans $ 1,434 $ 41 $ 5,137 $ 6,612 $ 691,494 $ 698,106 Commercial real estate loans 1,131 794 575 2,500 289,771 292,271 Commercial loans 169 — 1,064 1,233 112,592 113,825 Residential real estate loans 11 — — 11 60,015 60,026 Installment and consumer other — — — — 297 297 Total $ 2,745 $ 835 $ 6,776 $ 10,356 $ 1,154,169 $ 1,164,525 December 31, 2017 Agricultural loans $ 476 $ — $ 6,819 $ 7,295 $ 679,135 $ 686,430 Commercial real estate loans — — 2,149 2,149 290,555 292,704 Commercial loans 1,064 — 642 1,706 112,626 114,332 Residential real estate loans — — — — 55,138 55,138 Installment and consumer other — — — — 347 347 Total $ 1,540 $ — $ 9,610 $ 11,150 $ 1,137,801 $ 1,148,951 The following table lists information on nonaccrual, restructured, and certain past due loans at March 31, 2018 and December 31, 2017: March 31, December 31, 2018 2017 (dollars in thousands) Nonaccrual loans, 90 days or more past due $ 6,776 $ 9,610 Nonaccrual loans 30-89 days past due 1,004 1,493 Nonaccrual loans, less than 30 days past due 9,966 456 Restructured loans not on nonaccrual status 10,488 9,019 90 days or more past due and still accruing — — Total $ 28,234 $ 20,578 The following table presents the average recorded investment and interest income recognized on impaired loans by portfolio segment for three months ended March 31, 2018 and 2017: For the Three Months Ended March 31, 2018 2017 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized (dollars in thousands) Agricultural loans $ 32,145 $ 646 $ 11,199 $ 69 Commercial real estate loans 1,520 — 4,582 12 Commercial loans 1,473 1 3,261 7 Residential real estate loans 57 1 67 1 Total $ 35,195 $ 648 $ 19,109 $ 89 Impaired loans include nonaccrual loans, restructured loans, and loans that are 90 days or more past due and still accruing. For nonaccrual loans included in impaired loans, the interest income that would have been recognized had those loans been performing in accordance with their original terms would have been approximately $0.4 million and $0.3 million for the three months ended March 31, 2018 and 2017, respectively. Troubled Debt Restructurings The Company has allocated approximately $0.8 million and $0.9 million of specific reserves to customers whose loan terms have been modified in troubled debt restructurings (“TDR”) at March 31, 2018 and December 31, 2017, respectively. The Company had no additional lending commitments at March 31, 2018 or December 31, 2017 to customers with outstanding loans that are classified as TDRs. A TDR on nonaccrual status is classified as a nonaccrual loan until evaluation supports reasonable assurance of repayment and there has been a satisfactory period of performance according to the modified terms of the loan. Once this assurance is reached, the TDR is classified as a restructured loan. The following table presents the TDRs by loan class at March 31, 2018 and December 31, 2017: Non-Accrual Restructured and Accruing Total (dollars in thousands) March 31, 2018 Agricultural loans $ 5,852 $ 10,459 $ 16,311 Commercial real estate loans 575 — 575 Commercial loans — 29 29 Total $ 6,427 $ 10,488 $ 16,915 December 31, 2017 Agricultural loans $ 3,822 $ 8,668 $ 12,490 Commercial real estate loans 575 316 891 Commercial loans — 35 35 Total $ 4,397 $ 9,019 $ 13,416 The following table provides the number of loans modified in a troubled debt restructuring investment by class for the three months ended March 31, 2018 and 2017: For the Three Months Ended For the Three Months Ended March 31, 2018 March 31, 2017 Number of Loans Recorded Investment Number of Loans Recorded Investment (dollars in thousands) Troubled debt restructurings: Agricultural loans 7 $ 2,842 1 $ 325 Total 7 $ 2,842 1 $ 325 The following table provides the troubled debt restructurings for the three months ended March 31, 2018 and 2017 grouped by type of concession: For the Three Months Ended For the Three Months Ended March 31, 2018 March 31, 2017 Number of Loans Recorded Investment Number of Loans Recorded Investment (dollars in thousands) Agricultural loans Payment concessions 6 $ 2,751 — $ — Extension of interest-only payments 1 91 — — Combination of extension of term and interest rate concessions — — 1 325 Total 7 $ 2,842 1 $ 325 Credit Quality Indicators The Company categorizes loans into risk categories based on relevant information about the ability of the borrowers to service their debt, such as current financial information, historical payment experience, credit documentation, public information and current economic trends, among other factors. The Company analyzes agricultural, commercial, and commercial real estate loans individually by classifying the credits as to credit risk. The process of analyzing loans for changes in risk rating is ongoing through routine monitoring of the portfolio and annual internal credit reviews for credits with total exposure in excess of $300,000. The Company uses the following definitions for credit risk ratings: Sound. Credits classified as sound show very good probability of ongoing ability to meet and/or exceed obligations. Acceptable. Credits classified as acceptable show a good probability of ongoing ability to meet and/or exceed obligations. Satisfactory. Credits classified as satisfactory show fair probability of ongoing ability to meet and/or exceed obligations. Low Satisfactory . Credits classified as low satisfactory show fair probability of ongoing ability to meet and/or exceed obligations. Low satisfactory credits may be newer or have a less established track record of financial performance, inconsistent earnings, or may be going through an expansion. Watch. Credits classified as watch show some questionable probability of ongoing ability to meet and/or exceed obligations. Special Mention. Credits classified as special mention show potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loans or of the institution’s credit position at some future date. Substandard – Performing. Credits classified as substandard – performing generally have well-defined weaknesses. Collateral coverage is adequate and the loans are not considered impaired. Payments are being made and the loans are on accrual status. Substandard - Impaired . Credits classified as substandard generally have well-defined weaknesses that jeopardize the repayment of the debt. They have a distinct possibility that a loss will be sustained if the deficiencies are not corrected. Loans are considered impaired. Loans are either exhibiting signs of delinquency, are on non-accrual or are identified as a TDR. Doubtful. Credits 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. The Company categorizes residential real estate, installment and consumer other loans as satisfactory at the time of origination based on information obtained as to the ability of the borrower(s) to service their debt, such as current financial information, employment status and history, historical payment experience, credit scores and type and amount of collateral among other factors. The Company updates relevant information on these types of loans at the time of refinance, troubled debt restructuring or other indications of financial difficulty, downgrading as needed using the same category descriptions as for agricultural, commercial, and commercial real estate loans. In addition, the Company further considers current payment status as an indicator of which risk category to assign the borrower. The greater the level of deteriorated risk as indicated by a loan’s assigned risk category, the greater the likelihood a loss will occur in the future. If the loan is substandard - impaired, then the loan loss reserves for the loan are recorded at the loss level of impairment. If the loan is not impaired, then its loan loss reserves are determined by the application of a loss rate that increases with risk in accordance with the allowance for loan loss analysis. Based on the most recent analysis performed by management, the risk category of loans by class of loans was as follows as of March 31, 2018 and December 31, 2017: As of March 31, 2018 Sound/ Acceptable/ Satisfactory/ Low Satisfactory Watch Special Mention Substandard Performing Substandard Impaired Total Loans (dollars in thousands) Agricultural loans $ 513,843 $ 113,296 $ 3,187 $ 32,235 $ 35,545 $ 698,106 Commercial real estate loans 229,163 50,413 2,449 9,671 575 292,271 Commercial loans 91,877 17,440 — 3,355 1,153 113,825 Residential real estate loans 55,882 4,030 — — 114 60,026 Installment and consumer other 297 — — — — 297 Total $ 891,062 $ 185,179 $ 5,636 $ 45,261 $ 37,387 $ 1,164,525 As of December 31, 2017 Sound/ Acceptable/ Satisfactory/ Low Satisfactory Watch Special Mention Substandard Performing Substandard Impaired Total Loans (dollars in thousands) Agricultural loans $ 503,292 $ 115,374 $ 3,443 $ 35,577 $ 28,744 $ 686,430 Commercial real estate loans 225,898 50,043 4,574 9,724 2,465 292,704 Commercial loans 93,347 13,384 885 4,923 1,793 114,332 Residential real estate loans 50,917 4,221 — — — 55,138 Installment and consumer other 347 — — — — 347 Total $ 873,801 $ 183,022 $ 8,902 $ 50,224 $ 33,002 $ 1,148,951 As of March 31, 2018, the Company pledged $246.9 million of loans to secure a line-of-credit at the Federal Reserve of Chicago up to $187.3 million which was unused at March 31, 2018. No loans were pledged to the Federal Reserve of Chicago at December 31, 2017.

LOAN SERVICING RIGHTS

LOAN SERVICING RIGHTS	3 Months Ended
	Mar. 31, 2018
Transfers And Servicing [Abstract]
LOAN SERVICING RIGHTS	NOTE 5 – LOAN SERVICING RIGHTS Loans serviced for others are not included in the accompanying consolidated balance sheets. The risks inherent in servicing assets relate primarily to changes in prepayments that result from shifts in interest rates. The unpaid principal balances of mortgage and other loans serviced for others were approximately $611.4 million and $600.7 million at March 31, 2018 and December 31, 2017, respectively. The fair value of these rights were approximately $12.7 million and $12.5 million at March 31, 2018 and December 31, 2017. The fair value of servicing rights was determined using an assumed discount rate of 10 percent and prepayment speeds primarily ranging from 4 percent to 9 percent, depending upon the stratification of the specific right, and nominal credit losses. The following summarizes servicing rights capitalized and amortized, along with the aggregate activity in related valuation allowances: March 31, December 31, 2018 2017 (dollars in thousands) Loan servicing rights: Balance, beginning of period $ 8,950 $ 9,264 Additions 801 2,431 Disposals (243 ) (564 ) Amortization (549 ) (2,181 ) Balance, end of period $ 8,959 $ 8,950

GOODWILL AND CORE DEPOSIT INTAN

GOODWILL AND CORE DEPOSIT INTANGIBLE	3 Months Ended
	Mar. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
GOODWILL AND CORE DEPOSIT INTANGIBLE	NOTE 6 – GOODWILL AND CORE DEPOSIT INTANGIBLE The excess of the purchase price in an acquisition over the fair value of net assets acquired consists primarily of goodwill and the core deposit intangible. Goodwill is not amortized but is instead subject to impairment tests on at least an annual basis. Core deposit intangible, which arose from value ascribed to the deposit base of a bank acquired, has an estimated finite life and is amortized on an accelerated basis to expense over a 66-month period. Management will periodically review the carrying value of its long-lived and intangible assets to determine if any impairment has occurred, in which case an impairment charge would be recorded as an expense in the period of impairment, or whether changes in circumstances have occurred that would require a revision to the remaining useful life which would impact expense prospectively. In making such determination, management evaluates whether there are any adverse qualitative factors indicating that an impairment may exist, as well as the performance, on an undiscounted basis, of the underlying operations or assets which give rise to the intangible. Goodwill : Goodwill resulted from the acquisition of Fox River Valley Bancorp, Inc. (“Fox River Valley”) on May 13, 2016. The carrying amount of goodwill was $5.0 million at March 31, 2018 and December 31, 2017. Core deposit intangible: Core deposit intangible, primarily related to acquired customer relationships, is amortized over their estimated finite lives. The core deposit intangible related to the Fox River Valley acquisition had a gross carrying amount of $1.8 million. Amortization on core deposit intangible was $995 thousand at March 31, 2018 and $882 thousand at December 31, 2017. March 31, 2018 December 31, 2017 (dollars in thousands) Core deposit intangible: Gross carrying amount $ 1,801 $ 1,801 Accumulated amortization (995 ) (882 ) Net book value $ 806 $ 919 Additions during the period $ — $ —

DEPOSITS

DEPOSITS	3 Months Ended
	Mar. 31, 2018
Banking And Thrift [Abstract]
DEPOSITS	NOTE 7 – DEPOSITS Deposits are summarized as follows at March 31, 2018 and December 31, 2017: March 31, December 31, 2018 2017 (dollars in thousands) Demand deposits $ 101,167 $ 125,584 Savings 274,266 277,993 Certificates of deposit 796,957 706,500 Total deposits $ 1,172,390 $ 1,110,077 At March 31, 2018 and December 31, 2017, brokered deposits amounted to $319.7 million and $282.6 million, respectively, and are included in savings and certificates of deposit categories.

ADVANCES FROM FHLB AND OTHER BO

ADVANCES FROM FHLB AND OTHER BORROWINGS	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
ADVANCES FROM FHLB AND OTHER BORROWINGS	NOTE 8—ADVANCES FROM FHLB AND OTHER BORROWINGS The Bank had advances outstanding from the FHLB in the amount of $120.5 million and $121.5 million on March 31, 2018 and December 31, 2017, respectively. These advances, rates, and maturities were as follows: March 31, December 31, Maturity Rate 2018 2017 (dollars in thousands) Fixed rate, fixed term 01/02/2018 1.23 % $ — $ 1,000 Fixed rate, fixed term 01/12/2018 0.85 % — 8,000 Fixed rate, fixed term 02/12/2018 0.91 % — 5,000 Fixed rate, fixed term 04/23/2018 1.07 % 2,300 2,300 Fixed rate, fixed term 06/18/2018 0.93 % 10,000 10,000 Fixed rate, fixed term 07/16/2018 1.21 % 762 762 Fixed rate, fixed term 07/16/2018 1.21 % 1,038 1,038 Fixed rate, fixed term 07/19/2018 1.41 % 15,000 15,000 Fixed rate, fixed term 08/20/2018 1.15 % 1,000 1,000 Fixed rate, fixed term 08/20/2018 1.15 % 800 800 Fixed rate, fixed term 08/20/2018 1.27 % 2,200 2,200 Fixed rate, fixed term 11/09/2018 1.47 % 10,000 10,000 Fixed rate, fixed term 12/31/2018 1.65 % 3,000 3,000 Fixed rate, fixed term 02/27/2019 1.47 % 5,000 5,000 Fixed rate, fixed term 03/08/2019 1.54 % 10,000 10,000 Fixed rate, fixed term 07/15/2019 1.11 % 8,000 8,000 Fixed rate, fixed term 08/12/2019 2.24 % 5,000 — Fixed rate, fixed term 08/14/2019 1.77 % 2,000 2,000 Fixed rate, fixed term 02/20/2020 1.71 % 5,000 5,000 Fixed rate, fixed term 07/16/2020 1.85 % 800 800 Fixed rate, fixed term 08/25/2020 1.84 % 3,000 3,000 Fixed rate, fixed term 08/27/2020 1.88 % 5,000 5,000 Fixed rate, fixed term 12/30/2020 2.09 % 4,000 4,000 Fixed rate, fixed term 12/31/2020 1.94 % 600 600 Fixed rate, fixed term 04/12/2021 1.92 % 8,000 8,000 Fixed rate, fixed term 06/15/2021 1.39 % 5,000 5,000 Fixed rate, fixed term 08/16/2021 2.29 % 3,000 3,000 Fixed rate, fixed term 12/30/2021 2.29 % 2,000 2,000 Fixed rate, putable, no call 2 years 01/12/2023 2.03 % 8,000 — $ 120,500 $ 121,500 The terms of security agreements with the FHLB require the Bank to pledge collateral for its borrowings. The collateral consists of qualifying first mortgage loans and stock of the FHLB. The Bank had no irrevocable letters of credit with the FHLB as of March 31, 2018 and December 31, 2017. Future maturities of FHLB borrowings as of March 31, 2018 and December 31, 2017 were as follows: March 31, December 31, 2018 2017 (dollars in thousands) 1 year or less $ 61,100 $ 60,100 1 to 2 years 20,000 25,000 2 to 3 years 13,400 18,400 3 to 4 years 18,000 18,000 Over 4 years 8,000 — $ 120,500 $ 121,500 As of March 31, 2018 and December 31, 2017, the Bank also had a line of credit available with the Federal Reserve Bank of Chicago. Borrowings under this line of credit are limited by the amount of collateral pledged by the Bank, which totaled $187.3 million in loans and $8.6 million in securities at March 31, 2018 and December 31, 2017, respectively. There were no outstanding advances included in other borrowings at March 31, 2018 and December 31, 2017, respectively. On September 14, 2017, the Company entered into a credit agreement with U.S. Bank, National Association for a $15.0 million revolving line of credit with an interest rate of the one-month LIBOR rate plus 2.25%. The line also bears a non-usage fee of 0.275% per annum. The line did not have an outstanding balance as of March 31, 2018 and December 31, 2017. Other borrowings are borrowings as a result of sold loans that do not qualify for sale accounting. These agreements are recorded as financing transactions as the Bank maintains effective control over the transferred loans. The dollar amount of the loans underlying the sale agreements continues to be carried in the Bank’s loan portfolio, and the transfer is reported as a secured borrowing with pledge of collateral. At March 31, 2018 and December 31, 2017, the amounts of these borrowings were $1.2 million and $1.3 million, respectively. Also included in other borrowings is the capital lease for our full service banking location in Appleton, Wisconsin that was assumed in connection with our merger of Fox River Valley. Under the terms of the current triple-net lease the Company is obligated to pay monthly rent of $15 thousand, and the original term of the lease expired in April, 2018. As of March 31, 2018, liability remaining under the capital lease was $0, and the amortization related to the lease was $41 thousand and was included in other non-interest income. As of December 31, 2017, liability remaining under the capital lease was $41 thousand, and the amortization related to the lease was $148 thousand and as included in other non-interest expense. During the fourth quarter of 2017, the term of the lease was extended to April 2019, and the Company is obligated to pay monthly rent of $16 thousand. The renegotiation of terms results in the extended term being classified as an operating lease, and the future rent expense will be included in occupancy expense. The following table sets forth information concerning balances and interest rates on other borrowings as of and for the periods indicated: March 31, December 31, 2018 2017 (dollars in thousands) Balance outstanding at end of period $ 1,241 $ 1,299 Average amount outstanding during the period 1,286 1,545 Maximum amount outstanding at any month end 1,278 1,825 Weighted average interest rate during the period 4.97 % 5.77 % Weighted average interest rate at end of period 4.81 % 6.41 %

EQUITY INCENTIVE PLAN

EQUITY INCENTIVE PLAN	3 Months Ended
	Mar. 31, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
EQUITY INCENTIVE PLAN	NOTE 9 – EQUITY INCENTIVE PLAN Under the Company’s 2016 Long Term Incentive Plan (the “Plan”), the Company may grant options to purchase shares of common stock and issue restricted stock to its directors, officers, and employees. Both qualified and non-qualified stock options and restricted stock may be granted and issued, respectively, under the Plan. As of March 31, 2018, 76,951 options or shares of restricted stock have been granted under the Plan. The exercise price of each option equals the market price of the Company’s stock on the date of grant and an option’s maximum term is ten years. Vesting periods range from one to five years from the date of grant. The restricted stock vesting periods range from one to five years from the date of issuance. The status of the Plan as of March 31, 2018 and changes in the Plan during the three months ended March 31, 2018 were as follows: March 31, 2018 Number of Options Weighted-Average Exercise Price Aggregate Intrinsic Value (1) (dollars in thousands except option and per share data) Outstanding, beginning of year 228,318 $ 17.24 Granted 9,985 27.15 Exercised (7,452 ) 14.38 Forfeited/expired (8,484 ) 19.95 Outstanding, end of period 222,367 $ 17.67 $ 2,566 Options exercisable at period-end 164,688 $ 16.10 $ 2,159 Weighted-average fair value of options granted during the period (2) $ 10.25 (1) The aggregate intrinsic value of a stock option in the table above represents the total pre-tax intrinsic value (the amount by which the current market value of the underlying stock exceeds the exercise price of the option) that would have been received by the option holders had all option holders exercised their options on March 31, 2018. This amount changes based on changes in the market value of the Company’s stock. (2) The fair value (present value of the estimated future benefit to the option holder) of each option grant is estimated on the date of grant using the Black-Scholes option pricing model. Activity in restricted stock awards and restricted stock units for the three months ended March 31, 2018 was as follows: March 31, 2018 Restricted Stock Awards Weighted Average Grant Price Outstanding, beginning of year 41,217 $ 18.35 Granted 6,611 27.15 Vested (14,615 ) 15.40 Forfeited/expired (2,521 ) 25.89 Outstanding, end of period 30,692 $ 21.04 March 31, 2018 Restricted Stock Units Weighted Average Grant Price Outstanding, beginning of year 8,691 $ 25.53 Granted 5,891 27.15 Vested — — Forfeited/expired — — Outstanding, end of period 14,582 $ 26.19 For the three months ended March 31, 2018 and 2017, share-based compensation expense, including options and restricted stock awards, applicable to the Plan was $117 thousand and $109 thousand, respectively. As of March 31, 2018, unrecognized share-based compensation expense related to nonvested options and restricted stock awards amounted to $0.9 million and is expected to be recognized over a weighted average period of 1.8 years.

REGULATORY MATTERS

REGULATORY MATTERS	3 Months Ended
	Mar. 31, 2018
Regulatory Capital Requirements [Abstract]
REGULATORY MATTERS	NOTE 10 – REGULATORY MATTERS The Company (on a consolidated basis) and the Bank are each subject to various regulatory capital requirements administered by the federal and state banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s and the Bank’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of their assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Prompt corrective action provisions are not applicable to bank holding companies. Quantitative measures established by regulation to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios (set forth in the following table) of total, Tier 1 and Tier 1 Common Equity capital to risk-weighted assets, and of Tier 1 capital to average assets, as such terms are defined in the regulations. Management believed, as of March 31, 2018 and December 31, 2017, that the Company and the Bank met all capital adequacy requirements to which they were subject. As of March 31, 2018, the Bank’s capital ratios met those required to be considered as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Bank must maintain minimum total risk-based, Tier 1 risk-based, Tier 1 Common Equity risk-based, and Tier 1 leverage ratios as set forth in the following tables. The Company’s and the Bank’s actual capital amounts and ratios are presented in the following table: Actual Minimum For Capital Adequacy Purposes (a) Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions: Amount Ratio Amount Ratio Amount Ratio (dollars in thousands) March 31, 2018 Total Capital (to risk weighted assets): Consolidated $ 170,400 13.15 % $ 127,923 9.875 % No t Bank 166,873 12.89 % 127,859 9.875 % $ 129,478 10.00 % Tier 1 Capital (to risk weighted assets): Consolidated 155,235 11.98 % 102,015 7.875 % Not applicable Bank 151,708 11.72 % 101,964 7.875 % 103,582 8.00 % Tier 1 Capital (to average assets): Consolidated 155,235 10.99 % 56,496 4.00 % Not applicable Bank 151,708 10.75 % 56,457 4.00 % 70,571 5.00 % Tier 1 Common Equity Ratio (to risk weighted assets): Consolidated 131,608 10.16 % 82,583 6.375 % Not applicable Bank 151,708 11.72 % 82,542 6.375 % 84,161 6.50 % December 31, 2017 Total Capital (to risk weighted assets): Consolidated $ 165,174 13.08 % $ 116,775 9.25 % Not applicable Bank 161,375 12.79 % 116,719 9.25 % $ 126,183 10.00 % Tier 1 Capital (to risk weighted assets): Consolidated 151,363 11.99 % 91,526 7.25 % Not applicable Bank 147,564 11.69 % 91,483 7.25 % 100,946 8.00 % Tier 1 Capital (to average assets): Consolidated 151,363 11.03 % 54,914 4.00 % Not applicable Bank 147,564 10.76 % 54,875 4.00 % 68,594 5.00 % Tier 1 Common Equity Ratio (to risk weighted assets): Consolidated 127,840 10.13 % 72,590 5.75 % Not applicable Bank 147,564 11.69 % 72,555 5.75 % 82,019 6.50 % (a) The ratios for March 31, 2018 and December 31, 2017 include a capital conservation buffer of 1.875% and 1.25%, respectively. The rules of the Basel III regulatory capital framework implemented a capital conservation buffer that is added to the minimum requirements for capital adequacy purposes. The capital conservation buffer is subject to a three year phase-in period that began on January 1, 2016 and will be fully phased in on January 1, 2019 at 2.5%. The required phase-in capital conservation buffer during 2018 is 1.875%. At the present time, the ratios for the Company and the Bank are sufficient to meet the fully phased-in conservation buffer.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	NOTE 11 – FAIR VALUE MEASUREMENTS ASC 820-10 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. A fair value measurement assumes that the transaction to sell the asset or transfer the liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability. The price in the principal (or most advantageous) market used to measure the fair value of the asset or liability is not adjusted for transaction costs. An orderly transaction is a transaction that assumes exposure to the market for a period prior to the measurement date to allow for marketing activities that are usual and customary for transactions involving such assets and liabilities; it is not a forced transaction. Market participants are buyers and sellers in the principal market that are independent, knowledgeable, and both able and willing to transact. ASC 820-10 requires the use of valuation techniques that are consistent with the market approach, the income approach, and/or the cost approach. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets and liabilities. The income approach uses valuation techniques to convert future amounts, such as cash flows or earnings, to a single present amount on a discounted basis. The cost approach is based on the amount that currently would be required to replace the service capacity of an asset (replacement cost). Valuation techniques should be consistently applied. Inputs to valuation techniques refer to the assumptions that market participants would use in pricing the asset or liability. Inputs may be observable or unobservable. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability developed based on market data obtained from independent sources. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. In that regard, ASC 820-10 establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows: Level 1—Valuation is based on quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 1 assets and liabilities generally include debt and equity securities that are traded in an active exchange market. Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities. Level 2—Valuation is based on inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. The valuation may be based on quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or inputs that are observable or can be corroborated by observable market data for substantially the full term of the asset or liability. Level 3—Valuation is based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which determination of fair value requires significant management judgment or estimation. A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The following methods and assumptions were used by the Company in estimating the fair value disclosures for financial instruments recorded at fair value on a recurring basis: Securities Available for Sale Where quoted prices are available in an active market, the Company classifies the securities within Level 1 of the valuation hierarchy. Securities are defined as both long and short positions. Level 1 securities include highly liquid government bonds and exchange-traded equities. If quoted market prices are not available, the Company estimates fair values using pricing models and discounted cash flows that consider standard input factors such as observable market data, benchmark yields, interest rate volatilities, broker/dealer quotes and credit spreads. Examples of such instruments, which would generally be classified within Level 2 of the valuation hierarchy, include U.S. government and agency securities, corporate bonds and other securities. Mortgage-backed securities are included in Level 2 if observable inputs are available. In certain cases where there is limited activity or less transparency around inputs to the valuation, the Company classifies those securities in Level 3. Assets measured at fair value on a recurring basis are summarized below: Level 1 Inputs Level 2 Inputs Level 3 Inputs Total Fair Value (dollars in thousands) March 31, 2018 Securities available for sale: U.S. government and agency securities $ — $ 4,689 $ — $ 4,689 Municipal securities — 33,638 — 33,638 Mortgage-backed securities — 103,033 — 103,033 Total assets at fair value $ — $ 141,360 $ — $ 141,360 December 31, 2017 Securities available for sale: U.S. government and agency securities $ — $ 4,956 $ — $ 4,956 Municipal securities — 33,765 — 33,765 Mortgage-backed securities — 87,309 — 87,309 Total assets at fair value $ — $ 126,030 $ — $ 126,030 Certain assets and liabilities are measured at fair value on a nonrecurring basis; that is, they are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). The following table presents the financial instruments carried on the consolidated balance sheet by caption and by level in the fair value hierarchy for which a nonrecurring change in fair value has been recorded: Level 1 Inputs Level 2 Inputs Level 3 Inputs Impairment Losses (dollars in thousands) March 31, 2018 Impaired loans $ — $ — $ 37,387 $ 2,692 Other real estate owned — — 9,379 — Total assets at fair value $ — $ — $ 46,766 $ 2,692 December 31, 2017 Impaired loans $ — $ — $ 33,002 $ 1,436 Other real estate owned — — 4,962 905 Total assets at fair value $ — $ — $ 37,964 $ 2,341 The significant inputs used in the fair value measurements for Level 3 assets measured at fair value on a nonrecurring basis are as follows: March 31, 2018 Valuation Techniques Unobservable Inputs Range (Average) Impaired loans Evaluation of collateral Estimation of value NM* Other real estate owned Appraisal Appraisal adjustment 10%-41% (22%) December 31, 2017 Valuation Techniques Unobservable Inputs Range (Average) Impaired loans Evaluation of collateral Estimation of value NM* Other real estate owned Appraisal Appraisal adjustment 0%-39% (14%) * Not Meaningful. The estimated fair values, and related carrying or notional amounts, of the Company’s financial instruments are as follows: March 31, December 31, 2018 2017 Carrying Amount Fair Value Carrying Amount Fair Value Input Level (dollars in thousands) Financial assets: Cash and cash equivalents $ 90,676 $ 90,676 $ 66,771 $ 66,771 1 Securities available for sale 141,360 141,360 126,030 126,030 2 FHLB Stock 3,908 3,908 4,138 4,138 2 Loans, net of allowance for loan losses 1,149,913 1,140,272 1,135,704 1,135,861 3 Loans held for sale 6,407 6,407 6,575 6,575 3 Accrued interest receivable 3,929 3,929 3,793 3,793 2 Loan servicing rights 8,959 12,692 8,950 12,194 3 Financial liabilities: Deposits: Time 796,957 794,181 706,500 709,219 3 Other deposits 375,433 374,597 403,577 401,503 1 Other borrowings 1,241 1,241 1,299 1,299 3 Advances from FHLB 120,500 119,901 121,500 121,793 3 Subordinated debentures 15,540 15,540 15,523 15,523 3 Accrued interest payable 2,625 2,625 2,389 2,389 2

OTHER REAL ESTATE OWNED

OTHER REAL ESTATE OWNED	3 Months Ended
	Mar. 31, 2018
Banking And Thrift [Abstract]
OTHER REAL ESTATE OWNED	NOTE 12 – OTHER REAL ESTATE OWNED Changes in other real estate owned were as follows: For the Three Months Ended March 31, 2018 2017 (dollars in thousands) Balance, beginning of period $ 4,962 $ 3,161 Assets foreclosed 4,417 4,511 Net gain on sales of other real estate owned — 375 Proceeds from sale of other real estate owned — (1,052 ) Balance, end of period $ 9,379 $ 6,995 Expenses (income) applicable to other real estate owned included in non-interest expense include the following: For the Three Months Ended March 31, 2018 2017 (dollars in thousands) Net gain on sales of other real estate owned $ — $ (375 ) Operating expenses, net of rental income 108 44 $ 108 $ (331 )

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	3 Months Ended
	Mar. 31, 2018
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	NOTE 13 – SUBSEQUENT EVENTS Management evaluated subsequent events through the date the financial statements were issued. There were no significant events or transactions occurring after March 31, 2018, but prior to May 9, 2018, that provided additional evidence about conditions that existed at March 31, 2018.

BASIS OF PRESENTATION (Policies

BASIS OF PRESENTATION (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements In April 2016, the Financial Accounting Standards Board (the “FASB”) issued ASU No. 2016-10, Revenue from Contracts with Customers (Topic 606) In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments – Credit Losses In March 2017, the FASB issued updated guidance codified within ASU No. 2017-08, Receivables – Nonrefundable Fees and Other Costs In May 2017, the FASB issued updated guidance codified within ASU No. 2017-09, Compensation – Stock Compensation . In July 2017, the FASB issued ASU No. 2017-11, Earnings Per Share – Accounting for Certain Financial Instruments with Down Round Features In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815) In September 2017, the FASB issued updated guidance codified within ASU No. 2017-13, Revenue Recognition, Revenue from Contracts with Customers, Leases (Topic 840), and Leases (Topic 842) Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers Revenue from Contracts with Customers In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Schedule of Basic and Diluted Earnings Per Share	Earnings per common share is computed using the two-class method. Basic earnings per common share is computed by dividing net income by the weighted-average number of common shares outstanding during the applicable period. Diluted earnings per share is computed using the weighted-average number of shares determined for the basic earnings per common share plus the dilutive effect of share-based compensation using the treasury stock method. For the Three Months Ended March 31, 2018 2017 (dollars in thousands) Net income from continuing operations $ 4,054 $ 2,632 Less: preferred stock dividends 97 82 Income available to common shareholders for basic earnings per common share $ 3,957 $ 2,550 Average number of common shares issued 7,347,836 7,319,565 Less: weighted average treasury shares 439,833 432,229 Less: weighted average nonvested equity incentive plan shares 229,842 291,574 Weighted average number of common shares outstanding 6,678,161 6,595,762 Effect of dilutive options 90,804 131,740 Weighted average number of common shares outstanding used to calculate diluted earnings per common share 6,768,965 6,727,502

SECURITIES AVAILABLE-FOR-SALE (

SECURITIES AVAILABLE-FOR-SALE (Tables)	3 Months Ended
	Mar. 31, 2018
Investments Debt And Equity Securities [Abstract]
Schedule of Amortized Cost and Fair Value of Available-for-Sale of Securities	The amortized cost and fair value of securities available-for-sale as of March 31, 2018 and December 31, 2017 were as follows: Amortized Unrealized Unrealized Fair Cost Gains Losses Value (dollars in thousands) March 31, 2018 U.S. government and agency securities $ 4,717 $ — $ (28 ) $ 4,689 Municipal securities 34,394 3 (759 ) 33,638 Mortgage-backed securities 105,827 46 (2,840 ) 103,033 $ 144,938 $ 49 $ (3,627 ) $ 141,360 December 31, 2017 U.S. government and agency securities $ 4,874 $ 82 $ — $ 4,956 Municipal securities 33,949 56 (240 ) 33,765 Mortgage-backed securities 88,242 64 (997 ) 87,309 $ 127,065 $ 202 $ (1,237 ) $ 126,030
Schedule of Amortized Cost and Fair Value of Securities Available for Sale by Contractual Maturity	The amortized cost and fair value of securities at March 31, 2018 and December 31, 2017, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Amortized Fair Cost Value (dollars in thousands) March 31, 2018 Due in one year or less $ 7,652 $ 7,632 Due from one to five years 8,646 8,531 Due from five to ten years 9,834 9,670 Due after ten years 12,979 12,494 Mortgage-backed securities 105,827 103,033 $ 144,938 $ 141,360 December 31, 2017 Due in one year or less $ 7,990 $ 7,980 Due from one to five years 10,494 10,470 Due from five to ten years 11,482 11,494 Due after ten years 8,857 8,777 Mortgage-backed securities 88,242 87,309 $ 127,065 $ 126,030
Schedule of Fair Value and Gross Unrealized Losses of Entity's Investment	The following table shows the gross unrealized losses and fair value of the Company’s investments with unrealized losses that are not deemed to be other-than-temorarily impaired, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at March 31, 2018 and December 31, 2017: Less Than 12 Months 12 Months or Greater Total Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses (dollars in thousands) March 31, 2018 U.S. government and agency securities $ 4,689 $ (29 ) $ — $ — $ 4,689 $ (29 ) Municipal securities 30,175 (738 ) 1,348 (20 ) 31,523 (758 ) Mortgage-backed securities 80,843 (2,126 ) 15,496 (714 ) 96,339 (2,840 ) $ 115,707 $ (2,893 ) $ 16,844 $ (734 ) $ 132,551 $ (3,627 ) December 31, 2017 Municipal securities $ 25,280 $ (224 ) $ 1,354 $ (16 ) $ 26,634 $ (240 ) Mortgage-backed securities 54,278 (521 ) 16,466 (476 ) 70,744 (997 ) $ 79,558 $ (745 ) $ 17,820 $ (492 ) $ 97,378 $ (1,237 )

LOANS (Tables)

LOANS (Tables)	3 Months Ended
	Mar. 31, 2018
Receivables [Abstract]
Components of Loans	The components of loans were as follows: March 31, December 31, 2018 2017 (dollars in thousands) Agricultural loans $ 698,106 $ 686,430 Commercial real estate loans 292,271 292,704 Commercial loans 113,825 114,332 Residential real estate loans 60,026 55,138 Installment and consumer other 297 347 Total gross loans 1,164,525 1,148,951 Allowance for loan losses (14,612 ) (13,247 ) Net loans $ 1,149,913 $ 1,135,704
Changes in Allowance for Loan Losses by Portfolio Segment	Changes in the allowance for loan losses by portfolio segment for the three months ended March 31, 2018 and 2017 were as follows: Agricultural Commercial Real Estate Commercial Residential Real Estate Installment and Consumer Other Total (dollars in thousands) March 31, 2018 Balance, beginning of year $ 9,712 $ 1,978 $ 1,508 $ 47 $ 2 $ 13,247 Provision for loan losses 1,537 (1,118 ) (319 ) (2 ) (1 ) 97 Loans charged off — (42 ) — — — (42 ) Recoveries 1 1,240 68 — 1 1,310 Balance, end of period $ 11,250 $ 2,058 $ 1,257 $ 45 $ 2 $ 14,612 March 31, 2017 Balance, beginning of year $ 8,173 $ 2,762 $ 1,239 $ 470 $ 1 $ 12,645 Provision for loan losses 132 180 424 25 — 761 Loans charged off — — (17 ) — — (17 ) Recoveries — 13 26 — — 39 Balance, end of period $ 8,305 $ 2,955 $ 1,672 $ 495 $ 1 $ 13,428
Balances in Allowance for Loan Losses and Recorded Balance in Loans by Portfolio Segment and Based on Impairment Method	The following tables present the balances in the allowance for loan losses and the recorded balance in loans by portfolio segment and based on impairment method as of March 31, 2018 and December 31, 2017: March 31, 2018 Individually Evaluated for Impairment Collectively Evaluated for Impairment Total (dollars in thousands) Allowance for loan losses: Agricultural loans $ 2,419 $ 8,831 $ 11,250 Commercial real estate loans — 2,058 2,058 Commercial loans 273 984 1,257 Residential real estate loans — 45 45 Installment and consumer other — 2 2 Total ending allowance for loan losses 2,692 11,920 14,612 Loans: Agricultural loans 35,545 662,561 698,106 Commercial real estate loans 575 291,696 292,271 Commercial loans 1,153 112,672 113,825 Residential real estate loans 114 59,912 60,026 Installment and consumer other — 297 297 Total loans 37,387 1,127,138 1,164,525 Net loans $ 34,695 $ 1,115,218 $ 1,149,913 December 31, 2017 Individually Evaluated for Impairment Collectively Evaluated for Impairment Total (dollars in thousands) Allowance for loan losses: Agricultural loans $ 1,026 $ 8,686 $ 9,712 Commercial real estate loans - 1,978 1,978 Commercial loans 410 1,098 1,508 Residential real estate loans — 47 47 Installment and consumer other — 2 2 Total ending allowance for loan losses 1,436 11,811 13,247 Loans: Agricultural loans 28,744 657,686 686,430 Commercial real estate loans 2,465 290,239 292,704 Commercial loans 1,793 112,539 114,332 Residential real estate loans — 55,138 55,138 Installment and consumer other — 347 347 Total loans 33,002 1,115,949 1,148,951 Net loans $ 31,566 $ 1,104,138 $ 1,135,704
Schedule of Aging of Recorded Investment in Past Due Loans	The following table presents the aging of the recorded investment in past due loans at March 31, 2018 and December 31, 2017: 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Loans Not Past Due Total Loans (dollars in thousands) March 31, 2018 Agricultural loans $ 1,434 $ 41 $ 5,137 $ 6,612 $ 691,494 $ 698,106 Commercial real estate loans 1,131 794 575 2,500 289,771 292,271 Commercial loans 169 — 1,064 1,233 112,592 113,825 Residential real estate loans 11 — — 11 60,015 60,026 Installment and consumer other — — — — 297 297 Total $ 2,745 $ 835 $ 6,776 $ 10,356 $ 1,154,169 $ 1,164,525 December 31, 2017 Agricultural loans $ 476 $ — $ 6,819 $ 7,295 $ 679,135 $ 686,430 Commercial real estate loans — — 2,149 2,149 290,555 292,704 Commercial loans 1,064 — 642 1,706 112,626 114,332 Residential real estate loans — — — — 55,138 55,138 Installment and consumer other — — — — 347 347 Total $ 1,540 $ — $ 9,610 $ 11,150 $ 1,137,801 $ 1,148,951
Nonaccrual, Restructured and Certain Past Due Loans	The following table lists information on nonaccrual, restructured, and certain past due loans at March 31, 2018 and December 31, 2017: March 31, December 31, 2018 2017 (dollars in thousands) Nonaccrual loans, 90 days or more past due $ 6,776 $ 9,610 Nonaccrual loans 30-89 days past due 1,004 1,493 Nonaccrual loans, less than 30 days past due 9,966 456 Restructured loans not on nonaccrual status 10,488 9,019 90 days or more past due and still accruing — — Total $ 28,234 $ 20,578
Average Recorded Investment and Interest Income Recognized on Impaired Loans by Portfolio Segment	The following table presents the average recorded investment and interest income recognized on impaired loans by portfolio segment for three months ended March 31, 2018 and 2017: For the Three Months Ended March 31, 2018 2017 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized (dollars in thousands) Agricultural loans $ 32,145 $ 646 $ 11,199 $ 69 Commercial real estate loans 1,520 — 4,582 12 Commercial loans 1,473 1 3,261 7 Residential real estate loans 57 1 67 1 Total $ 35,195 $ 648 $ 19,109 $ 89
TDRs by Loan Class	The following table presents the TDRs by loan class at March 31, 2018 and December 31, 2017: Non-Accrual Restructured and Accruing Total (dollars in thousands) March 31, 2018 Agricultural loans $ 5,852 $ 10,459 $ 16,311 Commercial real estate loans 575 — 575 Commercial loans — 29 29 Total $ 6,427 $ 10,488 $ 16,915 December 31, 2017 Agricultural loans $ 3,822 $ 8,668 $ 12,490 Commercial real estate loans 575 316 891 Commercial loans — 35 35 Total $ 4,397 $ 9,019 $ 13,416 The following table provides the number of loans modified in a troubled debt restructuring investment by class for the three months ended March 31, 2018 and 2017: For the Three Months Ended For the Three Months Ended March 31, 2018 March 31, 2017 Number of Loans Recorded Investment Number of Loans Recorded Investment (dollars in thousands) Troubled debt restructurings: Agricultural loans 7 $ 2,842 1 $ 325 Total 7 $ 2,842 1 $ 325
Summary of Troubled Debt Restructurings Grouped by Type of Concession	The following table provides the troubled debt restructurings for the three months ended March 31, 2018 and 2017 grouped by type of concession: For the Three Months Ended For the Three Months Ended March 31, 2018 March 31, 2017 Number of Loans Recorded Investment Number of Loans Recorded Investment (dollars in thousands) Agricultural loans Payment concessions 6 $ 2,751 — $ — Extension of interest-only payments 1 91 — — Combination of extension of term and interest rate concessions — — 1 325 Total 7 $ 2,842 1 $ 325
Risk Category of Loans by Class of Loans	Based on the most recent analysis performed by management, the risk category of loans by class of loans was as follows as of March 31, 2018 and December 31, 2017: As of March 31, 2018 Sound/ Acceptable/ Satisfactory/ Low Satisfactory Watch Special Mention Substandard Performing Substandard Impaired Total Loans (dollars in thousands) Agricultural loans $ 513,843 $ 113,296 $ 3,187 $ 32,235 $ 35,545 $ 698,106 Commercial real estate loans 229,163 50,413 2,449 9,671 575 292,271 Commercial loans 91,877 17,440 — 3,355 1,153 113,825 Residential real estate loans 55,882 4,030 — — 114 60,026 Installment and consumer other 297 — — — — 297 Total $ 891,062 $ 185,179 $ 5,636 $ 45,261 $ 37,387 $ 1,164,525 As of December 31, 2017 Sound/ Acceptable/ Satisfactory/ Low Satisfactory Watch Special Mention Substandard Performing Substandard Impaired Total Loans (dollars in thousands) Agricultural loans $ 503,292 $ 115,374 $ 3,443 $ 35,577 $ 28,744 $ 686,430 Commercial real estate loans 225,898 50,043 4,574 9,724 2,465 292,704 Commercial loans 93,347 13,384 885 4,923 1,793 114,332 Residential real estate loans 50,917 4,221 — — — 55,138 Installment and consumer other 347 — — — — 347 Total $ 873,801 $ 183,022 $ 8,902 $ 50,224 $ 33,002 $ 1,148,951

LOAN SERVICING RIGHTS (Tables)

LOAN SERVICING RIGHTS (Tables)	3 Months Ended
	Mar. 31, 2018
Transfers And Servicing [Abstract]
Summary of Servicing Rights Capitalized and Amortized along with the Aggregate Activity in Related Valuation	The following summarizes servicing rights capitalized and amortized, along with the aggregate activity in related valuation allowances: March 31, December 31, 2018 2017 (dollars in thousands) Loan servicing rights: Balance, beginning of period $ 8,950 $ 9,264 Additions 801 2,431 Disposals (243 ) (564 ) Amortization (549 ) (2,181 ) Balance, end of period $ 8,959 $ 8,950

GOODWILL AND CORE DEPOSIT INT27

GOODWILL AND CORE DEPOSIT INTANGIBLE (Tables)	3 Months Ended
	Mar. 31, 2018
Core Deposit
Finite Lived Intangible Assets [Line Items]
Core Deposit Intangible	March 31, 2018 December 31, 2017 (dollars in thousands) Core deposit intangible: Gross carrying amount $ 1,801 $ 1,801 Accumulated amortization (995 ) (882 ) Net book value $ 806 $ 919 Additions during the period $ — $ —

DEPOSITS (Tables)

DEPOSITS (Tables)	3 Months Ended
	Mar. 31, 2018
Banking And Thrift [Abstract]
Summary of Deposits	Deposits are summarized as follows at March 31, 2018 and December 31, 2017: March 31, December 31, 2018 2017 (dollars in thousands) Demand deposits $ 101,167 $ 125,584 Savings 274,266 277,993 Certificates of deposit 796,957 706,500 Total deposits $ 1,172,390 $ 1,110,077

ADVANCES FROM FHLB AND OTHER 29

ADVANCES FROM FHLB AND OTHER BORROWINGS (Tables)	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Advances Outstanding from FHLB	The Bank had advances outstanding from the FHLB in the amount of $120.5 million and $121.5 million on March 31, 2018 and December 31, 2017, respectively. These advances, rates, and maturities were as follows: March 31, December 31, Maturity Rate 2018 2017 (dollars in thousands) Fixed rate, fixed term 01/02/2018 1.23 % $ — $ 1,000 Fixed rate, fixed term 01/12/2018 0.85 % — 8,000 Fixed rate, fixed term 02/12/2018 0.91 % — 5,000 Fixed rate, fixed term 04/23/2018 1.07 % 2,300 2,300 Fixed rate, fixed term 06/18/2018 0.93 % 10,000 10,000 Fixed rate, fixed term 07/16/2018 1.21 % 762 762 Fixed rate, fixed term 07/16/2018 1.21 % 1,038 1,038 Fixed rate, fixed term 07/19/2018 1.41 % 15,000 15,000 Fixed rate, fixed term 08/20/2018 1.15 % 1,000 1,000 Fixed rate, fixed term 08/20/2018 1.15 % 800 800 Fixed rate, fixed term 08/20/2018 1.27 % 2,200 2,200 Fixed rate, fixed term 11/09/2018 1.47 % 10,000 10,000 Fixed rate, fixed term 12/31/2018 1.65 % 3,000 3,000 Fixed rate, fixed term 02/27/2019 1.47 % 5,000 5,000 Fixed rate, fixed term 03/08/2019 1.54 % 10,000 10,000 Fixed rate, fixed term 07/15/2019 1.11 % 8,000 8,000 Fixed rate, fixed term 08/12/2019 2.24 % 5,000 — Fixed rate, fixed term 08/14/2019 1.77 % 2,000 2,000 Fixed rate, fixed term 02/20/2020 1.71 % 5,000 5,000 Fixed rate, fixed term 07/16/2020 1.85 % 800 800 Fixed rate, fixed term 08/25/2020 1.84 % 3,000 3,000 Fixed rate, fixed term 08/27/2020 1.88 % 5,000 5,000 Fixed rate, fixed term 12/30/2020 2.09 % 4,000 4,000 Fixed rate, fixed term 12/31/2020 1.94 % 600 600 Fixed rate, fixed term 04/12/2021 1.92 % 8,000 8,000 Fixed rate, fixed term 06/15/2021 1.39 % 5,000 5,000 Fixed rate, fixed term 08/16/2021 2.29 % 3,000 3,000 Fixed rate, fixed term 12/30/2021 2.29 % 2,000 2,000 Fixed rate, putable, no call 2 years 01/12/2023 2.03 % 8,000 — $ 120,500 $ 121,500
Future Maturities of FHLB Borrowings	Future maturities of FHLB borrowings as of March 31, 2018 and December 31, 2017 were as follows: March 31, December 31, 2018 2017 (dollars in thousands) 1 year or less $ 61,100 $ 60,100 1 to 2 years 20,000 25,000 2 to 3 years 13,400 18,400 3 to 4 years 18,000 18,000 Over 4 years 8,000 — $ 120,500 $ 121,500
Balances and Interest Rates on Other Borrowings	The following table sets forth information concerning balances and interest rates on other borrowings as of and for the periods indicated: March 31, December 31, 2018 2017 (dollars in thousands) Balance outstanding at end of period $ 1,241 $ 1,299 Average amount outstanding during the period 1,286 1,545 Maximum amount outstanding at any month end 1,278 1,825 Weighted average interest rate during the period 4.97 % 5.77 % Weighted average interest rate at end of period 4.81 % 6.41 %

EQUITY INCENTIVE PLAN (Tables)

EQUITY INCENTIVE PLAN (Tables)	3 Months Ended
	Mar. 31, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Status and Changes in Stock Option 2016 Plan	The status of the Plan as of March 31, 2018 and changes in the Plan during the three months ended March 31, 2018 were as follows: March 31, 2018 Number of Options Weighted-Average Exercise Price Aggregate Intrinsic Value (1) (dollars in thousands except option and per share data) Outstanding, beginning of year 228,318 $ 17.24 Granted 9,985 27.15 Exercised (7,452 ) 14.38 Forfeited/expired (8,484 ) 19.95 Outstanding, end of period 222,367 $ 17.67 $ 2,566 Options exercisable at period-end 164,688 $ 16.10 $ 2,159 Weighted-average fair value of options granted during the period (2) $ 10.25 (1) The aggregate intrinsic value of a stock option in the table above represents the total pre-tax intrinsic value (the amount by which the current market value of the underlying stock exceeds the exercise price of the option) that would have been received by the option holders had all option holders exercised their options on March 31, 2018. This amount changes based on changes in the market value of the Company’s stock. (2) The fair value (present value of the estimated future benefit to the option holder) of each option grant is estimated on the date of grant using the Black-Scholes option pricing model.
Activity in Restricted Stock Awards and Restricted Stock Units	Activity in restricted stock awards and restricted stock units for the three months ended March 31, 2018 was as follows: March 31, 2018 Restricted Stock Awards Weighted Average Grant Price Outstanding, beginning of year 41,217 $ 18.35 Granted 6,611 27.15 Vested (14,615 ) 15.40 Forfeited/expired (2,521 ) 25.89 Outstanding, end of period 30,692 $ 21.04 March 31, 2018 Restricted Stock Units Weighted Average Grant Price Outstanding, beginning of year 8,691 $ 25.53 Granted 5,891 27.15 Vested — — Forfeited/expired — — Outstanding, end of period 14,582 $ 26.19

REGULATORY MATTERS (Tables)

REGULATORY MATTERS (Tables)	3 Months Ended
	Mar. 31, 2018
Regulatory Capital Requirements [Abstract]
Summary of Actual Capital Amount and Ratio of Company's and Bank's	The Company’s and the Bank’s actual capital amounts and ratios are presented in the following table: Actual Minimum For Capital Adequacy Purposes (a) Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions: Amount Ratio Amount Ratio Amount Ratio (dollars in thousands) March 31, 2018 Total Capital (to risk weighted assets): Consolidated $ 170,400 13.15 % $ 127,923 9.875 % No t Bank 166,873 12.89 % 127,859 9.875 % $ 129,478 10.00 % Tier 1 Capital (to risk weighted assets): Consolidated 155,235 11.98 % 102,015 7.875 % Not applicable Bank 151,708 11.72 % 101,964 7.875 % 103,582 8.00 % Tier 1 Capital (to average assets): Consolidated 155,235 10.99 % 56,496 4.00 % Not applicable Bank 151,708 10.75 % 56,457 4.00 % 70,571 5.00 % Tier 1 Common Equity Ratio (to risk weighted assets): Consolidated 131,608 10.16 % 82,583 6.375 % Not applicable Bank 151,708 11.72 % 82,542 6.375 % 84,161 6.50 % December 31, 2017 Total Capital (to risk weighted assets): Consolidated $ 165,174 13.08 % $ 116,775 9.25 % Not applicable Bank 161,375 12.79 % 116,719 9.25 % $ 126,183 10.00 % Tier 1 Capital (to risk weighted assets): Consolidated 151,363 11.99 % 91,526 7.25 % Not applicable Bank 147,564 11.69 % 91,483 7.25 % 100,946 8.00 % Tier 1 Capital (to average assets): Consolidated 151,363 11.03 % 54,914 4.00 % Not applicable Bank 147,564 10.76 % 54,875 4.00 % 68,594 5.00 % Tier 1 Common Equity Ratio (to risk weighted assets): Consolidated 127,840 10.13 % 72,590 5.75 % Not applicable Bank 147,564 11.69 % 72,555 5.75 % 82,019 6.50 % (a) The ratios for March 31, 2018 and December 31, 2017 include a capital conservation buffer of 1.875% and 1.25%, respectively.

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Assets Measured at Fair Value on Recurring Basis	Assets measured at fair value on a recurring basis are summarized below: Level 1 Inputs Level 2 Inputs Level 3 Inputs Total Fair Value (dollars in thousands) March 31, 2018 Securities available for sale: U.S. government and agency securities $ — $ 4,689 $ — $ 4,689 Municipal securities — 33,638 — 33,638 Mortgage-backed securities — 103,033 — 103,033 Total assets at fair value $ — $ 141,360 $ — $ 141,360 December 31, 2017 Securities available for sale: U.S. government and agency securities $ — $ 4,956 $ — $ 4,956 Municipal securities — 33,765 — 33,765 Mortgage-backed securities — 87,309 — 87,309 Total assets at fair value $ — $ 126,030 $ — $ 126,030
Financial Instruments Carried on Consolidated Balance Sheet for Which Nonrecurring Change in Fair Value Has Been Recorded	The following table presents the financial instruments carried on the consolidated balance sheet by caption and by level in the fair value hierarchy for which a nonrecurring change in fair value has been recorded: Level 1 Inputs Level 2 Inputs Level 3 Inputs Impairment Losses (dollars in thousands) March 31, 2018 Impaired loans $ — $ — $ 37,387 $ 2,692 Other real estate owned — — 9,379 — Total assets at fair value $ — $ — $ 46,766 $ 2,692 December 31, 2017 Impaired loans $ — $ — $ 33,002 $ 1,436 Other real estate owned — — 4,962 905 Total assets at fair value $ — $ — $ 37,964 $ 2,341
Significant Inputs Used in Fair Value Measurements for Level 3 Assets Measured on Nonrecurring Basis	The significant inputs used in the fair value measurements for Level 3 assets measured at fair value on a nonrecurring basis are as follows: March 31, 2018 Valuation Techniques Unobservable Inputs Range (Average) Impaired loans Evaluation of collateral Estimation of value NM* Other real estate owned Appraisal Appraisal adjustment 10%-41% (22%) December 31, 2017 Valuation Techniques Unobservable Inputs Range (Average) Impaired loans Evaluation of collateral Estimation of value NM* Other real estate owned Appraisal Appraisal adjustment 0%-39% (14%)
Estimated Fair Values and Related Carrying or Notional Amounts of Financial Instruments	The estimated fair values, and related carrying or notional amounts, of the Company’s financial instruments are as follows: March 31, December 31, 2018 2017 Carrying Amount Fair Value Carrying Amount Fair Value Input Level (dollars in thousands) Financial assets: Cash and cash equivalents $ 90,676 $ 90,676 $ 66,771 $ 66,771 1 Securities available for sale 141,360 141,360 126,030 126,030 2 FHLB Stock 3,908 3,908 4,138 4,138 2 Loans, net of allowance for loan losses 1,149,913 1,140,272 1,135,704 1,135,861 3 Loans held for sale 6,407 6,407 6,575 6,575 3 Accrued interest receivable 3,929 3,929 3,793 3,793 2 Loan servicing rights 8,959 12,692 8,950 12,194 3 Financial liabilities: Deposits: Time 796,957 794,181 706,500 709,219 3 Other deposits 375,433 374,597 403,577 401,503 1 Other borrowings 1,241 1,241 1,299 1,299 3 Advances from FHLB 120,500 119,901 121,500 121,793 3 Subordinated debentures 15,540 15,540 15,523 15,523 3 Accrued interest payable 2,625 2,625 2,389 2,389 2

OTHER REAL ESTATE OWNED (Tables

OTHER REAL ESTATE OWNED (Tables)	3 Months Ended
	Mar. 31, 2018
Banking And Thrift [Abstract]
Schedule of Other Real Estate Owned	Changes in other real estate owned were as follows: For the Three Months Ended March 31, 2018 2017 (dollars in thousands) Balance, beginning of period $ 4,962 $ 3,161 Assets foreclosed 4,417 4,511 Net gain on sales of other real estate owned — 375 Proceeds from sale of other real estate owned — (1,052 ) Balance, end of period $ 9,379 $ 6,995
Expenses (Income) Applicable to Other Real Estate Owned Included in Non-Interest Expense	Expenses (income) applicable to other real estate owned included in non-interest expense include the following: For the Three Months Ended March 31, 2018 2017 (dollars in thousands) Net gain on sales of other real estate owned $ — $ (375 ) Operating expenses, net of rental income 108 44 $ 108 $ (331 )

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Net income from continuing operations	$ 4,054	$ 2,632
Less: preferred stock dividends	97	82
Income available to common shareholders for basic earnings per common share	$ 3,957	$ 2,550
Average number of common shares issued	7,347,836	7,319,565
Less: weighted average treasury shares	439,833	432,229
Less: weighted average nonvested equity incentive plan shares	229,842	291,574
Weighted average number of common shares outstanding	6,678,161	6,595,762
Effect of dilutive options	90,804	131,740
Weighted average number of common shares outstanding used to calculate diluted earnings per common share	6,768,965	6,727,502

Securities Available-for-Sale -

Securities Available-for-Sale - Schedule of Amortized Cost and Fair Value of Available-for-Sale of Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 144,938	$ 127,065
Unrealized Gains	49	202
Unrealized Losses	(3,627)	(1,237)
Fair Value	141,360	126,030
U.S. Government and Agency Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	4,717	4,874
Unrealized Gains		82
Unrealized Losses	(28)
Fair Value	4,689	4,956
Municipal securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	34,394	33,949
Unrealized Gains	3	56
Unrealized Losses	(759)	(240)
Fair Value	33,638	33,765
Mortgage-backed securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	105,827	88,242
Unrealized Gains	46	64
Unrealized Losses	(2,840)	(997)
Fair Value	$ 103,033	$ 87,309

Securities Available-for-Sale36

Securities Available-for-Sale - Schedule of Amortized Cost and Fair Value of Securities Available for Sale by Contractual Maturity (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Available For Sale Securities [Abstract]
Due in one year or less, Amortized Cost	$ 7,652	$ 7,990
Due from one to five years, Amortized Cost	8,646	10,494
Due from five to ten years, Amortized Cost	9,834	11,482
Due after ten years, Amortized Cost	12,979	8,857
Mortgage-backed securities, Amortized Cost	105,827	88,242
Amortized Cost	144,938	127,065
Due in one year or less, Fair Value	7,632	7,980
Due from one to five years, Fair Value	8,531	10,470
Due from five to ten years, Fair Value	9,670	11,494
Due after ten years, Fair Value	12,494	8,777
Mortgage-backed securities, Fair Value	103,033	87,309
Fair Value	$ 141,360	$ 126,030

Securities Available-for-Sale37

Securities Available-for-Sale - Additional Information (Detail) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Available For Sale Securities [Line Items]
FHLB Stock, at cost	$ 3,908,000	$ 4,138,000
Reported Value Measurement
Schedule Of Available For Sale Securities [Line Items]
FHLB Stock, at cost	3,900,000	4,100,000
Reported Value Measurement | Collateralized FHLB Advances
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities Pledged as Collateral	0	0
Reported Value Measurement | Federal Reserve Bank Line Of Credit
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities Pledged as Collateral	$ 0	$ 8,600,000

Securities Available-for-Sale38

Securities Available-for-Sale - Schedule of Fair Value and Gross Unrealized Losses of Entity's Investments (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Available For Sale Securities [Line Items]
Investments with unrealized losses less than 12 months, fair value	$ 115,707	$ 79,558
Investments with unrealized losses less than 12 months, unrealized losses	(2,893)	(745)
Investments with unrealized losses 12 months or greater, fair value	16,844	17,820
Investments with unrealized losses 12 months or greater, unrealized losses	(734)	(492)
Investments with unrealized losses, fair value	132,551	97,378
Investments with unrealized losses, unrealized losses	(3,627)	(1,237)
Municipal securities
Schedule Of Available For Sale Securities [Line Items]
Investments with unrealized losses less than 12 months, fair value	30,175	25,280
Investments with unrealized losses less than 12 months, unrealized losses	(738)	(224)
Investments with unrealized losses 12 months or greater, fair value	1,348	1,354
Investments with unrealized losses 12 months or greater, unrealized losses	(20)	(16)
Investments with unrealized losses, fair value	31,523	26,634
Investments with unrealized losses, unrealized losses	(758)	(240)
Mortgage-backed securities
Schedule Of Available For Sale Securities [Line Items]
Investments with unrealized losses less than 12 months, fair value	80,843	54,278
Investments with unrealized losses less than 12 months, unrealized losses	(2,126)	(521)
Investments with unrealized losses 12 months or greater, fair value	15,496	16,466
Investments with unrealized losses 12 months or greater, unrealized losses	(714)	(476)
Investments with unrealized losses, fair value	96,339	70,744
Investments with unrealized losses, unrealized losses	(2,840)	$ (997)
U.S. Government and Agency Securities
Schedule Of Available For Sale Securities [Line Items]
Investments with unrealized losses less than 12 months, fair value	4,689
Investments with unrealized losses less than 12 months, unrealized losses	(29)
Investments with unrealized losses, fair value	4,689
Investments with unrealized losses, unrealized losses	$ (29)

Loans - Components of Loans (De

Loans - Components of Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Loans And Leases Receivable Net Reported Amount [Abstract]
Agricultural loans	$ 698,106	$ 686,430
Commercial real estate loans	292,271	292,704
Commercial loans	113,825	114,332
Residential real estate loans	60,026	55,138
Installment and consumer other	297	347
Total gross loans	1,164,525	1,148,951
Allowance for loan losses	(14,612)	(13,247)	$ (13,428)	$ (12,645)
Net loans	$ 1,149,913	$ 1,135,704

Loans - Changes in Allowance fo

Loans - Changes in Allowance for Loan Losses by Portfolio Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Accounts Notes And Loans Receivable [Line Items]
Balance, beginning of year	$ 13,247	$ 12,645
Provision for loan losses	97	761
Loans charged off	(42)	(17)
Recoveries	1,310	39
Balance, end of period	14,612	13,428
Agricultural
Accounts Notes And Loans Receivable [Line Items]
Balance, beginning of year	9,712	8,173
Provision for loan losses	1,537	132
Recoveries	1
Balance, end of period	11,250	8,305
Commercial Real Estate
Accounts Notes And Loans Receivable [Line Items]
Balance, beginning of year	1,978	2,762
Provision for loan losses	(1,118)	180
Loans charged off	(42)
Recoveries	1,240	13
Balance, end of period	2,058	2,955
Commercial
Accounts Notes And Loans Receivable [Line Items]
Balance, beginning of year	1,508	1,239
Provision for loan losses	(319)	424
Loans charged off		(17)
Recoveries	68	26
Balance, end of period	1,257	1,672
Residential Real Estate
Accounts Notes And Loans Receivable [Line Items]
Balance, beginning of year	47	470
Provision for loan losses	(2)	25
Balance, end of period	45	495
Installment and Consumer Other
Accounts Notes And Loans Receivable [Line Items]
Balance, beginning of year	2	1
Provision for loan losses	(1)
Recoveries	1
Balance, end of period	$ 2	$ 1

Loans - Balances in Allowance f

Loans - Balances in Allowance for Loan Losses and Recorded Balance in Loans by Portfolio Segment and Based on Impairment Method (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Financing Receivable Allowance For Credit Losses [Line Items]
Loans individually evaluated for impairment	$ 34,695	$ 31,566
Loans collectively evaluated for impairment	1,115,218	1,104,138
Net loans	1,149,913	1,135,704
Allowance for loan losses:
Allowance for loan losses individually evaluated for impairment	2,692	1,436
Allowance for loan losses collectively evaluated for impairment	11,920	11,811
Total	14,612	13,247
Loans:
Loans individually evaluated for impairment	37,387	33,002
Loans collectively evaluated for impairment	1,127,138	1,115,949
Total gross loans	1,164,525	1,148,951
Agricultural Loans
Allowance for loan losses:
Allowance for loan losses individually evaluated for impairment	2,419	1,026
Allowance for loan losses collectively evaluated for impairment	8,831	8,686
Total	11,250	9,712
Loans:
Loans individually evaluated for impairment	35,545	28,744
Loans collectively evaluated for impairment	662,561	657,686
Total gross loans	698,106	686,430
Commercial Real Estate Loans
Allowance for loan losses:
Allowance for loan losses collectively evaluated for impairment	2,058	1,978
Total	2,058	1,978
Loans:
Loans individually evaluated for impairment	575	2,465
Loans collectively evaluated for impairment	291,696	290,239
Total gross loans	292,271	292,704
Commercial Loans
Allowance for loan losses:
Allowance for loan losses individually evaluated for impairment	273	410
Allowance for loan losses collectively evaluated for impairment	984	1,098
Total	1,257	1,508
Loans:
Loans individually evaluated for impairment	1,153	1,793
Loans collectively evaluated for impairment	112,672	112,539
Total gross loans	113,825	114,332
Residential Real Estate Loans
Allowance for loan losses:
Allowance for loan losses collectively evaluated for impairment	45	47
Total	45	47
Loans:
Loans individually evaluated for impairment	114
Loans collectively evaluated for impairment	59,912	55,138
Total gross loans	60,026	55,138
Installment and consumer other
Allowance for loan losses:
Allowance for loan losses collectively evaluated for impairment	2	2
Total	2	2
Loans:
Loans collectively evaluated for impairment	297	347
Total gross loans	$ 297	$ 347

Loans - Schedule of Aging of Re

Loans - Schedule of Aging of Recorded Investment in Past Due Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	$ 10,356	$ 11,150
Loans Not Past Due	1,154,169	1,137,801
Total gross loans	1,164,525	1,148,951
Financing Receivables 30 To 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	2,745	1,540
Financing Receivables 60 To 89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	835
Financing Receivables Equal To Greater Than 90 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	6,776	9,610
Agricultural Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	6,612	7,295
Loans Not Past Due	691,494	679,135
Total gross loans	698,106	686,430
Agricultural Loans | Financing Receivables 30 To 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	1,434	476
Agricultural Loans | Financing Receivables 60 To 89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	41
Agricultural Loans | Financing Receivables Equal To Greater Than 90 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	5,137	6,819
Commercial Real Estate Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	2,500	2,149
Loans Not Past Due	289,771	290,555
Total gross loans	292,271	292,704
Commercial Real Estate Loans | Financing Receivables 30 To 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	1,131
Commercial Real Estate Loans | Financing Receivables 60 To 89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	794
Commercial Real Estate Loans | Financing Receivables Equal To Greater Than 90 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	575	2,149
Commercial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	1,233	1,706
Loans Not Past Due	112,592	112,626
Total gross loans	113,825	114,332
Commercial Loans | Financing Receivables 30 To 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	169	1,064
Commercial Loans | Financing Receivables Equal To Greater Than 90 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	1,064	642
Residential Real Estate Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	11
Loans Not Past Due	60,015	55,138
Total gross loans	60,026	55,138
Residential Real Estate Loans | Financing Receivables 30 To 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Past Due	11
Installment and consumer other
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Not Past Due	297	347
Total gross loans	$ 297	$ 347

Loans - Nonaccrual, Restructure

Loans - Nonaccrual, Restructured and Certain Past Due Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Financing Receivable Allowance For Credit Losses [Line Items]
Nonaccrual loans, past due	$ 10,356	$ 11,150
Restructured loans not on nonaccrual status	10,488	9,019
Total	28,234	20,578
Financing Receivables Equal To Greater Than 90 Days Past Due
Financing Receivable Allowance For Credit Losses [Line Items]
Nonaccrual loans, past due	6,776	9,610
Financing Receivables 30 To 89 Days Past Due
Financing Receivable Allowance For Credit Losses [Line Items]
Nonaccrual loans, past due	1,004	1,493
Financing Receivables 1 To 29 Days Past Due
Financing Receivable Allowance For Credit Losses [Line Items]
Nonaccrual loans, past due	$ 9,966	$ 456

Loans - Average Recorded Invest

Loans - Average Recorded Investment and Interest Income Recognized on Impaired Loans by Portfolio Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Financing Receivable Impaired [Line Items]
Average Recorded Investment	$ 35,195	$ 19,109
Interest Income Recognized	648	89
Agricultural Loans
Financing Receivable Impaired [Line Items]
Average Recorded Investment	32,145	11,199
Interest Income Recognized	646	69
Commercial Real Estate Loans
Financing Receivable Impaired [Line Items]
Average Recorded Investment	1,520	4,582
Interest Income Recognized		12
Commercial Loans
Financing Receivable Impaired [Line Items]
Average Recorded Investment	1,473	3,261
Interest Income Recognized	1	7
Residential Real Estate Loans
Financing Receivable Impaired [Line Items]
Average Recorded Investment	57	67
Interest Income Recognized	$ 1	$ 1

Loans - Additional Information

Loans - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Accounts Notes And Loans Receivable [Line Items]
Impaired loans on nonaccrual and restructured loans that are past due and still accruing	90 days
Interest income recognized for nonaccrual loans	$ 400,000	$ 300,000
Specific reserve to customers whose loan terms have been modified in TDR	800,000		$ 900,000
Additional lending commitments to customers with outstanding loans that are classified as TDRs	0		0
Minimum exposure for annual internal credit review	300,000
Federal Reserve Bank Of Chicago
Accounts Notes And Loans Receivable [Line Items]
Loans pledged as collateral	246,900,000		$ 0
Federal Reserve Bank Of Chicago | Maximum
Accounts Notes And Loans Receivable [Line Items]
Line-of-credit unused portion	$ 187,300,000

Loans - TDRs by Loan Class (Det

Loans - TDRs by Loan Class (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Financing Receivable Allowance For Credit Losses [Line Items]
Restructured and Accruing	$ 10,488	$ 9,019
Total	2,842		$ 325
TDR Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Non-Accrual	6,427	4,397
Restructured and Accruing	10,488	9,019
Total	16,915	13,416
Agricultural Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Total	2,842		$ 325
Agricultural Loans | TDR Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Non-Accrual	5,852	3,822
Restructured and Accruing	10,459	8,668
Total	16,311	12,490
Commercial Real Estate Loans | TDR Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Non-Accrual	575	575
Restructured and Accruing		316
Total	575	891
Commercial Loans | TDR Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Restructured and Accruing	29	35
Total	$ 29	$ 35

Loans - Number of Loans Modifie

Loans - Number of Loans Modified in Troubled Debt Restructuring Investment by Class (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)Loan	Mar. 31, 2017USD ($)Loan
Accounts Notes And Loans Receivable [Line Items]
Number of Loans | Loan	7	1
Recorded Investment | $	$ 2,842	$ 325
Agricultural Loans
Accounts Notes And Loans Receivable [Line Items]
Number of Loans | Loan	7	1
Recorded Investment | $	$ 2,842	$ 325

Loans - Summary of Troubled Deb

Loans - Summary of Troubled Debt Restructurings Grouped by Type of Concession (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)Loan	Mar. 31, 2017USD ($)Loan
Financing Receivable Allowance For Credit Losses [Line Items]
Number of Loans | Loan	7	1
Recorded Investment | $	$ 2,842	$ 325
Agricultural Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Number of Loans | Loan	7	1
Recorded Investment | $	$ 2,842	$ 325
Agricultural Loans | Payment Concessions
Financing Receivable Allowance For Credit Losses [Line Items]
Number of Loans | Loan	6
Recorded Investment | $	$ 2,751
Agricultural Loans | Extension of Interest-Only Payments
Financing Receivable Allowance For Credit Losses [Line Items]
Number of Loans | Loan	1
Recorded Investment | $	$ 91
Agricultural Loans | Combination of Extension of Term and Interest Rate Concessions
Financing Receivable Allowance For Credit Losses [Line Items]
Number of Loans | Loan		1
Recorded Investment | $		$ 325

Loans - Risk Category of Loans

Loans - Risk Category of Loans by Class of Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Long Term Debt [Line Items]
Agricultural loans	$ 698,106	$ 686,430
Commercial real estate loans	292,271	292,704
Commercial loans	113,825	114,332
Residential real estate loans	60,026	55,138
Installment and consumer other	297	347
Total gross loans	1,164,525	1,148,951
Sound/ Acceptable/ Satisfactory/ Low Satisfactory
Long Term Debt [Line Items]
Agricultural loans	513,843	503,292
Commercial real estate loans	229,163	225,898
Commercial loans	91,877	93,347
Residential real estate loans	55,882	50,917
Installment and consumer other	297	347
Total gross loans	891,062	873,801
Watch
Long Term Debt [Line Items]
Agricultural loans	113,296	115,374
Commercial real estate loans	50,413	50,043
Commercial loans	17,440	13,384
Residential real estate loans	4,030	4,221
Total gross loans	185,179	183,022
Special Mention
Long Term Debt [Line Items]
Agricultural loans	3,187	3,443
Commercial real estate loans	2,449	4,574
Commercial loans		885
Total gross loans	5,636	8,902
Substandard Performing
Long Term Debt [Line Items]
Agricultural loans	32,235	35,577
Commercial real estate loans	9,671	9,724
Commercial loans	3,355	4,923
Total gross loans	45,261	50,224
Substandard Impaired
Long Term Debt [Line Items]
Agricultural loans	35,545	28,744
Commercial real estate loans	575	2,465
Commercial loans	1,153	1,793
Residential real estate loans	114
Total gross loans	$ 37,387	$ 33,002

Loan Servicing Rights - Additio

Loan Servicing Rights - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Servicing Assets at Fair Value [Line Items]
Unpaid principal balance of mortgage	$ 611.4	$ 600.7
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, discount rate	10.00%
Level 3 Inputs
Servicing Assets at Fair Value [Line Items]
Loan servicing rights, fair value	$ 12.7	$ 12.5
Minimum
Servicing Assets at Fair Value [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, Prepayment speed	4.00%
Maximum
Servicing Assets at Fair Value [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, Prepayment speed	9.00%

Loan Servicing Rights - Summary

Loan Servicing Rights - Summary of Servicing Rights Capitalized and Amortized along with the Aggregate Activity in Related Valuation (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Transfers And Servicing [Abstract]
Balance, beginning of period	$ 8,950	$ 9,264
Additions	801	2,431
Disposals	(243)	(564)
Amortization	(549)	(2,181)
Balance, end of period	$ 8,959	$ 8,950

Goodwill and Core Deposit Int52

Goodwill and Core Deposit Intangible - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 5,038	$ 5,038
Fox River Valley
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 5,000	5,000
Core Deposit
Goodwill And Intangible Assets [Line Items]
Intangible assets, amortization period on accelerated basis	66 months
Accumulated amortization	$ 995	882
Core Deposit | Fox River Valley
Goodwill And Intangible Assets [Line Items]
Gross carrying amount of intangible assets	1,801	1,801
Accumulated amortization	$ 995	$ 882

Goodwill and Core Deposit Int53

Goodwill and Core Deposit Intangible - Core Deposit Intangible (Detail) - Core Deposit - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Core deposit intangible:
Accumulated amortization	$ (995)	$ (882)
Net book value	806	919
Fox River Valley
Core deposit intangible:
Gross carrying amount	1,801	1,801
Accumulated amortization	(995)	(882)
Net book value	$ 806	$ 919

Deposits - Summary of Deposits

Deposits - Summary of Deposits (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Deposits [Abstract]
Demand deposits	$ 101,167	$ 125,584
Savings	274,266	277,993
Certificates of deposit	796,957	706,500
Total deposits	$ 1,172,390	$ 1,110,077

Deposits - Additional Informati

Deposits - Additional Information (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Deposits [Abstract]
Brokered deposits	$ 319.7	$ 282.6

Advances From FHLB and Other 56

Advances From FHLB and Other Borrowings - Additional Information (Detail) - USD ($)	Sep. 14, 2017	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2017
Debt Instrument [Line Items]
Advances from FHLB		$ 120,500,000	$ 121,500,000	$ 121,500,000
Irrevocable letters of credit		0	0	0
Other borrowings		1,241,000	1,299,000	1,299,000
Fox River Valley
Debt Instrument [Line Items]
Capital lease monthly rental payments		$ 15,000
Lease expiration date		Apr. 30, 2018
Capital lease obligations		$ 0	$ 41,000	41,000
Amortization of capital lease		41,000		148,000
Lease expiration date extended			2019-04
Lease monthly rental payments			$ 16,000
Collateralized Loan Obligations
Debt Instrument [Line Items]
Other borrowings		1,200,000	1,300,000	1,300,000
Federal Reserve Bank Of Chicago
Debt Instrument [Line Items]
Line of credit amount outstanding		187,300,000
Other borrowings		0	0	0
Federal Reserve Bank Of Chicago | Securities Pledged as Collateral
Debt Instrument [Line Items]
Available line-of-credit			8,600,000	8,600,000
U.S. Bank National Association | Revolving Line-of-Credit Facility
Debt Instrument [Line Items]
Line of credit amount outstanding		$ 0	$ 0	$ 0
Line of credit facility agreement date	Sep. 14, 2017
Line of credit facility maximum borrowing capacity	$ 15,000,000
Line of credit, non-usage fee percentage per annum	0.275%
U.S. Bank National Association | Revolving Line-of-Credit Facility | One month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%

Advances from FHLB and Other 57

Advances from FHLB and Other Borrowings - Advances Outstanding from FHLB (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Advances from FHLB	$ 120,500	$ 121,500
Fixed rate, short term, Advance for FHLB, 1
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Jan. 2, 2018
Advances from FHLB, Rate	1.23%
Advances from FHLB		1,000
Fixed rate, fixed term, Advance for FHLB, 2
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Jan. 12, 2018
Advances from FHLB, Rate	0.85%
Advances from FHLB		8,000
Fixed rate, fixed term, Advance for FHLB, 3
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Feb. 12, 2018
Advances from FHLB, Rate	0.91%
Advances from FHLB		5,000
Fixed rate, fixed term, Advance for FHLB, 4
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Apr. 23, 2018
Advances from FHLB, Rate	1.07%
Advances from FHLB	$ 2,300	2,300
Fixed rate, fixed term, Advance for FHLB, 5
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Jun. 18, 2018
Advances from FHLB, Rate	0.93%
Advances from FHLB	$ 10,000	10,000
Fixed rate, fixed term, Advance for FHLB, 6
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Jul. 16, 2018
Advances from FHLB, Rate	1.21%
Advances from FHLB	$ 762	762
Fixed rate, fixed term, Advance for FHLB, 7
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Jul. 16, 2018
Advances from FHLB, Rate	1.21%
Advances from FHLB	$ 1,038	1,038
Fixed rate, fixed term, Advance for FHLB, 8
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Jul. 19, 2018
Advances from FHLB, Rate	1.41%
Advances from FHLB	$ 15,000	15,000
Fixed rate, fixed term, Advance for FHLB, 9
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Aug. 20, 2018
Advances from FHLB, Rate	1.15%
Advances from FHLB	$ 1,000	1,000
Fixed rate, fixed term, Advance for FHLB, 10
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Aug. 20, 2018
Advances from FHLB, Rate	1.15%
Advances from FHLB	$ 800	800
Fixed rate, fixed term, Advance for FHLB, 11
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Aug. 20, 2018
Advances from FHLB, Rate	1.27%
Advances from FHLB	$ 2,200	2,200
Fixed rate, fixed term, Advance for FHLB, 12
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Nov. 9, 2018
Advances from FHLB, Rate	1.47%
Advances from FHLB	$ 10,000	10,000
Fixed rate, fixed term, Advance for FHLB, 13
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Dec. 31, 2018
Advances from FHLB, Rate	1.65%
Advances from FHLB	$ 3,000	3,000
Fixed rate, fixed term, Advance for FHLB, 14
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Feb. 27, 2019
Advances from FHLB, Rate	1.47%
Advances from FHLB	$ 5,000	5,000
Fixed rate, fixed term, Advance for FHLB, 15
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Mar. 8, 2019
Advances from FHLB, Rate	1.54%
Advances from FHLB	$ 10,000	10,000
Fixed rate, fixed term, Advance for FHLB, 16
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Jul. 15, 2019
Advances from FHLB, Rate	1.11%
Advances from FHLB	$ 8,000	8,000
Fixed rate, fixed term, Advance for FHLB, 17
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Aug. 12, 2019
Advances from FHLB, Rate	2.24%
Advances from FHLB	$ 5,000
Fixed rate, fixed term, Advance for FHLB, 18
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Aug. 14, 2019
Advances from FHLB, Rate	1.77%
Advances from FHLB	$ 2,000	2,000
Fixed rate, fixed term, Advance for FHLB, 19
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Feb. 20, 2020
Advances from FHLB, Rate	1.71%
Advances from FHLB	$ 5,000	5,000
Fixed rate, fixed term, Advance for FHLB, 20
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Jul. 16, 2020
Advances from FHLB, Rate	1.85%
Advances from FHLB	$ 800	800
Fixed rate, fixed term, Advance for FHLB, 21
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Aug. 25, 2020
Advances from FHLB, Rate	1.84%
Advances from FHLB	$ 3,000	3,000
Fixed rate, fixed term, Advance for FHLB, 22
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Aug. 27, 2020
Advances from FHLB, Rate	1.88%
Advances from FHLB	$ 5,000	5,000
Fixed rate, fixed term, Advance for FHLB, 23
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Dec. 30, 2020
Advances from FHLB, Rate	2.09%
Advances from FHLB	$ 4,000	4,000
Fixed rate, fixed term, Advance for FHLB, 24
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Dec. 31, 2020
Advances from FHLB, Rate	1.94%
Advances from FHLB	$ 600	600
Fixed rate, fixed term, Advance for FHLB, 25
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Apr. 12, 2021
Advances from FHLB, Rate	1.92%
Advances from FHLB	$ 8,000	8,000
Fixed rate, fixed term, Advance for FHLB, 26
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Jun. 15, 2021
Advances from FHLB, Rate	1.39%
Advances from FHLB	$ 5,000	5,000
Fixed rate, fixed term, Advance for FHLB, 27
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Aug. 16, 2021
Advances from FHLB, Rate	2.29%
Advances from FHLB	$ 3,000	3,000
Fixed rate, fixed term, Advance for FHLB, 28
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Dec. 30, 2021
Advances from FHLB, Rate	2.29%
Advances from FHLB	$ 2,000	$ 2,000
Fixed rate, putable, no call 2 years
Debt Instrument [Line Items]
Advances from FHLB, Maturity	Jan. 12, 2023
Advances from FHLB, Rate	2.03%
Advances from FHLB	$ 8,000

Advances from FHLB and Other 58

Advances from FHLB and Other Borrowings - Future Maturities of FHLB Borrowings (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Federal Home Loan Banks [Abstract]
1 year or less	$ 61,100	$ 60,100
1 to 2 years	20,000	25,000
2 to 3 years	13,400	18,400
3 to 4 years	18,000	18,000
Over 4 years	8,000
Advances from FHLB	$ 120,500	$ 121,500

Advances from FHLB and Other 59

Advances from FHLB and Other Borrowings - Balances and Interest Rates on Other Borrowings (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Other Borrowings:
Balance outstanding at end of period	$ 1,241	$ 1,299
Average amount outstanding during the period	1,286	1,545
Maximum amount outstanding at any month end	$ 1,278	$ 1,825
Weighted average interest rate during the period	4.97%	5.77%
Weighted average interest rate at end of period	4.81%	6.41%

Equity Incentive Plan - Additio

Equity Incentive Plan - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		21 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 117	$ 109
Unrecognized share-based compensation expense related to nonvested options and restricted stock awards amounted	$ 900		$ 900
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Option term	10 years
Maximum | Equity Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	5 years
Minimum | Equity Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	1 year
Restricted Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of restricted stock granted under plan	6,611
Restricted Stock Awards | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	5 years
Restricted Stock Awards | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	1 year
Stock Options And Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 117	$ 109
Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized share-based compensation expense related to nonvested options and restricted stock award amounted, weighted average period of recognition	1 year 9 months 18 days
2016 Long Term Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of options granted under plan	9,985		76,951
2016 Long Term Incentive Plan | Restricted Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of restricted stock granted under plan			76,951

Equity Incentive Plan - Status

Equity Incentive Plan - Status and Changes in Stock Option Plan (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		21 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018
Number of Options
Options, Exercised		(2,952)	(22,657)
2016 Long Term Incentive Plan
Number of Options
Options, Outstanding beginning of year		228,318
Options, Granted		9,985		76,951
Options, Exercised		(7,452)
Options, Forfeited/expired		(8,484)
Options, Outstanding end of period		222,367		222,367
Options exercisable at period-end		164,688		164,688
Weighted-Average Exercise Price
Weighted Average Exercise price, Outstanding, beginning of year		$ 17.24
Weighted Average Exercise Price, Granted		27.15
Weighted Average Exercise Price, Exercised		14.38
Weighted Average Exercise Price, Forfeited/expired		19.95
Weighted Average Exercise Price, Outstanding, end of period		17.67		$ 17.67
Weighted Average Exercise Price, Options exercisable at period-end		16.10		$ 16.10
Weighted-average fair value of options granted during the period	[1]	$ 10.25
Aggregate Intrinsic Value
Aggregate Intrinsic Value, Outstanding, end of period	[2]	$ 2,566		$ 2,566
Aggregate Intrinsic Value, Options exercisable at period-end	[2]	$ 2,159		$ 2,159
[1]	The fair value (present value of the estimated future benefit to the option holder) of each option grant is estimated on the date of grant using the Black-Scholes option pricing model.
[2]	The aggregate intrinsic value of a stock option in the table above represents the total pre-tax intrinsic value (the amount by which the current market value of the underlying stock exceeds the exercise price of the option) that would have been received by the option holders had all option holders exercised their options on March 31, 2018. This amount changes based on changes in the market value of the Company’s stock.

Equity Incentive Plan - Activit

Equity Incentive Plan - Activity in Restricted Stock Awards and Restricted Stock Units (Detail)	3 Months Ended
	Mar. 31, 2018$ / sharesshares
Restricted Stock Awards
Number of Non-Vested Shares
Outstanding, beginning of year | shares	41,217
Granted | shares	6,611
Vested | shares	(14,615)
Forfeited/expired | shares	(2,521)
Outstanding, end of period | shares	30,692
Weighted Average Grant Date Fair Value
Weighted Average Grant Price Outstanding, Beginning of year | $ / shares	$ 18.35
Weighted Average Grant Price Outstanding, Granted | $ / shares	27.15
Weighted Average Grant Price, Vested | $ / shares	15.40
Weighted Average Grant Price, Forfeited or expired | $ / shares	25.89
Weighted Average Grant Price Outstanding, End of year | $ / shares	$ 21.04
Restricted Stock Units
Number of Non-Vested Shares
Outstanding, beginning of year | shares	8,691
Granted | shares	5,891
Outstanding, end of period | shares	14,582
Weighted Average Grant Date Fair Value
Weighted Average Grant Price Outstanding, Beginning of year | $ / shares	$ 25.53
Weighted Average Grant Price Outstanding, Granted | $ / shares	27.15
Weighted Average Grant Price Outstanding, End of year | $ / shares	$ 26.19

Regulatory Matters - Summary of

Regulatory Matters - Summary of Actual Capital Amounts and Ratios of Company's and Bank's (Detail) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital (to risk weighted assets), Actual Amount		$ 170,400	$ 165,174
Total Capital (to risk weighted assets), Actual Ratio		13.15%	13.08%
Total Capital (to risk weighted assets), Minimum For Capital Adequacy Purpose, Amount	[1]	$ 127,923	$ 116,775
Total Capital (to risk weighted assets), Minimum For Capital Adequacy Purpose, Ratio	[1]	9.875%	9.25%
Tier 1 Capital (to risk weighted assets), Actual Amount		$ 155,235	$ 151,363
Tier 1 Capital (to risk weighted assets), Actual Ratio		11.98%	11.99%
Tier 1 Capital (to risk weighted assets), Minimum For Capital Adequacy Purposes, Amount	[1]	$ 102,015	$ 91,526
Tier 1 Capital (to risk weighted assets), Minimum For Capital Adequacy Purposes, Ratio	[1]	7.875%	7.25%
Tier 1 Capital (to average assets), Actual Amount		$ 155,235	$ 151,363
Tier 1 Capital (to average assets), Actual Ratio		10.99%	11.03%
Tier 1 Capital (to average assets), Minimum To Be Adequately Capitalized Under Prompt Corrective Action Provisions, Amount	[1]	$ 56,496	$ 54,914
Tier 1 Capital (to average assets), Minimum To Be Adequately Capitalized Under Prompt Corrective Action Provisions, Ratio	[1]	4.00%	4.00%
Tier 1 Common Equity (to risk weighted assets), Actual Amount		$ 131,608	$ 127,840
Tier 1 Common Equity (to risk weighted assets), Actual Ratio		10.16%	10.13%
Tier 1 Common Equity (to risk weighted assets), Minimum For Capital Adequacy Purposes, Amount	[1]	$ 82,583	$ 72,590
Tier 1 Common Equity (to risk weighted assets), Minimum For Capital Adequacy Purposes, Ratio	[1]	6.375%	5.75%
Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital (to risk weighted assets), Actual Amount		$ 166,873	$ 161,375
Total Capital (to risk weighted assets), Actual Ratio		12.89%	12.79%
Total Capital (to risk weighted assets), Minimum For Capital Adequacy Purpose, Amount	[1]	$ 127,859	$ 116,719
Total Capital (to risk weighted assets), Minimum For Capital Adequacy Purpose, Ratio	[1]	9.875%	9.25%
Total Capital (to risk weighted assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount		$ 129,478	$ 126,183
Total Capital (to risk weighted assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio		10.00%	10.00%
Tier 1 Capital (to risk weighted assets), Actual Amount		$ 151,708	$ 147,564
Tier 1 Capital (to risk weighted assets), Actual Ratio		11.72%	11.69%
Tier 1 Capital (to risk weighted assets), Minimum For Capital Adequacy Purposes, Amount	[1]	$ 101,964	$ 91,483
Tier 1 Capital (to risk weighted assets), Minimum For Capital Adequacy Purposes, Ratio	[1]	7.875%	7.25%
Tier 1 Capital (to risk weighted assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount		$ 103,582	$ 100,946
Tier 1 Capital (to risk weighted assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio		8.00%	8.00%
Tier 1 Capital (to average assets), Actual Amount		$ 151,708	$ 147,564
Tier 1 Capital (to average assets), Actual Ratio		10.75%	10.76%
Tier 1 Capital (to average assets), Minimum To Be Adequately Capitalized Under Prompt Corrective Action Provisions, Amount	[1]	$ 56,457	$ 54,875
Tier 1 Capital (to average assets), Minimum To Be Adequately Capitalized Under Prompt Corrective Action Provisions, Ratio	[1]	4.00%	4.00%
Tier 1 Capital (to average assets), Minimum To Be Adequately Capitalized Under Prompt Corrective Action Provisions, Amount		$ 70,571	$ 68,594
Tier 1 Capital (to average assets), Minimum To Be Adequately Capitalized Under Prompt Corrective Action Provisions, Ratio		5.00%	5.00%
Tier 1 Common Equity (to risk weighted assets), Actual Amount		$ 151,708	$ 147,564
Tier 1 Common Equity (to risk weighted assets), Actual Ratio		11.72%	11.69%
Tier 1 Common Equity (to risk weighted assets), Minimum For Capital Adequacy Purposes, Amount	[1]	$ 82,542	$ 72,555
Tier 1 Common Equity (to risk weighted assets), Minimum For Capital Adequacy Purposes, Ratio	[1]	6.375%	5.75%
Tier 1 Common Equity (to risk weighted assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount		$ 84,161	$ 82,019
Tier 1 Common Equity (to risk weighted assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio		6.50%	6.50%
[1]	The ratios for March 31, 2018 and December 31, 2017 include a capital conservation buffer of 1.875% and 1.25%, respectively.

Fair Value Measurements - Asset

Fair Value Measurements - Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value	$ 141,360	$ 126,030
Fair Value on a Recurring Basis
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value	141,360	126,030
Fair Value on a Recurring Basis | U.S. Government and Agency Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value	4,689	4,956
Fair Value on a Recurring Basis | Municipal securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value	33,638	33,765
Fair Value on a Recurring Basis | Mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value	103,033	87,309
Fair Value on a Recurring Basis | Level 2 Inputs
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value	141,360	126,030
Fair Value on a Recurring Basis | Level 2 Inputs | U.S. Government and Agency Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value	4,689	4,956
Fair Value on a Recurring Basis | Level 2 Inputs | Municipal securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value	33,638	33,765
Fair Value on a Recurring Basis | Level 2 Inputs | Mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value	$ 103,033	$ 87,309

Fair Value Measurements - Finan

Fair Value Measurements - Financial Instruments Carried on Consolidated Balance Sheet for Which Nonrecurring Change in Fair Value Has Been Recorded (Detail) - Fair Value on a Nonrecurring Basis - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impairment Losses	$ 2,692	$ 2,341
Impaired Loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impairment Losses	2,692	1,436
Other Real Estate Owned
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impairment Losses		905
Level 3 Inputs
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total assets at fair value	46,766	37,964
Level 3 Inputs | Impaired Loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total assets at fair value	37,387	33,002
Level 3 Inputs | Other Real Estate Owned
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total assets at fair value	$ 9,379	$ 4,962

Fair Value Measurements - Signi

Fair Value Measurements - Significant Inputs Used in Fair Value Measurements for Level 3 Assets Measured on Nonrecurring Basis (Detail) - Level 3 Inputs	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Impaired Loans
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Valuation Techniques	Evaluation of collateral	Evaluation of collateral
Unobservable Inputs	Estimation of value	Estimation of value
Other Real Estate Owned
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Valuation Techniques	Appraisal	Appraisal
Unobservable Inputs	Appraisal adjustment	Appraisal adjustment
Other Real Estate Owned | Minimum
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Range (Average)	10.00%	0.00%
Other Real Estate Owned | Maximum
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Range (Average)	41.00%	39.00%
Other Real Estate Owned | Weighted Average
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Range (Average)	22.00%	14.00%

Fair Value Measurements - Estim

Fair Value Measurements - Estimated Fair Values and Related Carrying or Notional Amounts of Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Financial assets:
Securities available for sale	$ 141,360	$ 126,030
Level 3 Inputs
Financial assets:
Loan servicing rights	12,700	12,500
Carrying Amount | Level 1 Inputs
Financial assets:
Cash and cash equivalents	90,676	66,771
Carrying Amount | Level 2 Inputs
Financial assets:
Securities available for sale	141,360	126,030
FHLB Stock	3,908	4,138
Accrued interest receivable	3,929	3,793
Financial liabilities:
Accrued interest payable	2,625	2,389
Carrying Amount | Level 3 Inputs
Financial assets:
Loans, net of allowance for loan losses	1,149,913	1,135,704
Loans held for sale	6,407	6,575
Loan servicing rights	8,959	8,950
Financial liabilities:
Other borrowings	1,241	1,299
Advances from FHLB	120,500	121,500
Subordinated debentures	15,540	15,523
Fair Value | Level 1 Inputs
Financial assets:
Cash and cash equivalents	90,676	66,771
Fair Value | Level 2 Inputs
Financial assets:
Securities available for sale	141,360	126,030
FHLB Stock	3,908	4,138
Accrued interest receivable	3,929	3,793
Financial liabilities:
Accrued interest payable	2,625	2,389
Fair Value | Level 3 Inputs
Financial assets:
Loans, net of allowance for loan losses	1,140,272	1,135,861
Loans held for sale	6,407	6,575
Loan servicing rights	12,692	12,194
Financial liabilities:
Other borrowings	1,241	1,299
Advances from FHLB	119,901	121,793
Subordinated debentures	15,540	15,523
Bank Time Deposits | Carrying Amount | Level 3 Inputs
Financial liabilities:
Deposits	796,957	706,500
Bank Time Deposits | Fair Value | Level 3 Inputs
Financial liabilities:
Deposits	794,181	709,219
Other Deposits | Carrying Amount | Level 1 Inputs
Financial liabilities:
Deposits	375,433	403,577
Other Deposits | Fair Value | Level 1 Inputs
Financial liabilities:
Deposits	$ 374,597	$ 401,503

Other Real Estate Owned - Summa

Other Real Estate Owned - Summary of Changes in Other Real Estate Owned (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Real Estate Owned Disclosure Of Detailed Components [Abstract]
Balance, beginning of period	$ 4,962	$ 3,161
Assets foreclosed	4,417	4,511
Net gain on sales of other real estate owned		375
Proceeds from sale of other real estate owned		(1,052)
Balance, end of period	$ 9,379	$ 6,995

Other Real Estate Owned - Expen

Other Real Estate Owned - Expenses (Income) Applicable to Other Real Estate Owned Included in Non-Interest Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Real Estate Owned Disclosure Of Detailed Components [Abstract]
Net gain on sales of other real estate owned		$ (375)
Operating expenses, net of rental income	$ 108	44
Total Expenses	$ 108	$ (331)