West Bancorporation (WTBA) 10-Q 27 Apr 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Document - shares	3 Months Ended
	Mar. 31, 2017	Apr. 26, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	WEST BANCORPORATION INC
Entity Central Index Key	1,166,928
Document Type	10-Q
Document Period Date	Mar. 31, 2017
Amendment Flag	false
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		16,187,161

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 34,994	$ 40,943
Federal funds sold	7,536	35,893
Cash and cash equivalents	42,530	76,836
Investment securities available for sale, at fair value	261,426	260,637
Investment securities held to maturity, at amortized cost (fair value of $48,079 and $47,789 at March 31, 2017 and December 31, 2016, respectively)	48,366	48,386
Federal Home Loan Bank stock, at cost	12,110	10,771
Loans	1,446,735	1,399,870
Allowance for loan losses	(16,427)	(16,112)
Loans, net	1,430,308	1,383,758
Premises and equipment, net	23,005	23,314
Accrued interest receivable	5,585	5,321
Bank-owned life insurance	33,121	33,111
Deferred tax assets, net	5,850	6,957
Other assets	5,518	5,113
Total assets	1,867,819	1,854,204
Deposits:
Noninterest-bearing demand	453,604	479,311
Interest-bearing demand	256,777	282,592
Savings	699,338	668,688
Time of $250 or more	12,456	10,446
Other time	106,579	105,568
Total deposits	1,528,754	1,546,605
Federal funds purchased	1,425	9,690
Short-term borrowings	36,000	0
Subordinated notes, net	20,402	20,398
Federal Home Loan Bank advances, net	100,254	99,886
Long-term debt, net	4,300	5,126
Accrued expenses and other liabilities	6,912	7,123
Total liabilities	1,698,047	1,688,828
STOCKHOLDERS' EQUITY
Preferred stock, $0.01 par value; authorized 50,000,000 shares; no shares issued and outstanding at March 31, 2017 and December 31, 2016	0	0
Common stock, no par value; authorized 50,000,000 shares; 16,187,161 and 16,137,999 shares issued and outstanding at March 31, 2017 and December 31, 2016, respectively	3,000	3,000
Additional paid-in capital	21,423	21,462
Retained earnings	145,319	141,956
Accumulated other comprehensive income (loss)	30	(1,042)
Total stockholders' equity	169,772	165,376
Total liabilities and stockholders' equity	$ 1,867,819	$ 1,854,204

Balance Sheet Parenthetical (Pa

Balance Sheet Parenthetical (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
ASSETS
Held-to-maturity securities, fair value	$ 48,079	$ 47,789
Preferred Stock:
Preferred stock, par value ($ per share)	$ 0.01	$ 0.01
Preferred stock, share authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common Stock:
Common Stock, No Par Value	$ 0	$ 0
Common stock, share authorized	50,000,000	50,000,000
Common stock, share issued	16,187,161	16,137,999
Common stock, share outstanding	16,187,161	16,137,999

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Interest income:
Loans, including fees		$ 14,969	$ 13,466
Investment securities:
Taxable		1,027	1,155
Tax-exempt		778	883
Federal funds sold		17	20
Total interest income		16,791	15,524
Interest expense:
Deposits		1,195	705
Federal funds purchased		11	2
Short-term borrowings		35	14
Subordinated notes		212	187
Federal Home Loan Bank advances		917	872
Long-term debt		32	45
Total interest expense		2,402	1,825
Net interest income		14,389	13,699
Provision for loan losses	[1]	0	200
Net interest income after provision for loan losses		14,389	13,499
Noninterest income:
Service charges on deposit accounts		600	596
Debit card usage fees		440	447
Trust services		392	297
Increase in cash value of bank-owned life insurance		154	168
Gain from bank-owned life insurance		307	443
Realized investment securities losses, net		(3)	0
Other income		270	279
Total noninterest income		2,160	2,230
Noninterest expense:
Salaries and employee benefits		4,337	4,256
Occupancy		1,097	951
Data processing		688	579
FDIC insurance		213	218
Professional fees		293	234
Director fees		211	240
Other expenses		1,204	1,321
Total noninterest expense		8,043	7,799
Income before income taxes		8,506	7,930
Income taxes		2,400	2,234
Net income		$ 6,106	$ 5,696
Basic earnings per common share		$ 0.38	$ 0.35
Diluted earnings per common share		0.37	0.35
Cash dividends declared per common share		$ 0.17	$ 0.16
[1]	The negative provisions for the various segments are either related to the decline in outstanding balances in each of those portfolio segments during the time periods disclosed and/or improvement in the credit quality factors related to those portfolio segments.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 6,106	$ 5,696
Unrealized holding gains on investment securities arising during the period	1,607	2,685
Less: reclassification adjustment for net losses realized in net income	3	0
Less: reclassification adjustment for amortization of net unrealized gains to interest income on securities transferred from available for sale to held to maturity	(7)	(24)
Income tax (expense)	(609)	(1,011)
Other comprehensive income on investment securities	994	1,650
Unrealized holding gains (losses) on derivatives arising during the period	9	(830)
Less: reclassification adjustment for net loss on derivatives realized in net income	90	124
Less: reclassification adjustment for amortization of derivative termination costs	27	27
Income tax (expense) benefit	(48)	258
Other comprehensive income (loss) on derivatives	78	(421)
Total other comprehensive income	1,072	1,229
Comprehensive income	$ 7,178	$ 6,925

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2015	$ 152,377	$ 0	$ 3,000	$ 20,067	$ 129,740	$ (430)
Common Stock, Shares, Outstanding at Dec. 31, 2015			16,064,435
Stockholders' Equity [Roll Forward]
Net income	5,696	0	$ 0	0	5,696	0
Other comprehensive income (loss), net of tax	1,229	0	0	0	0	1,229
Cash dividends declared, common stock	(2,571)	0	0	0	(2,571)	0
Stock-based compensation costs	461	0	0	461	0	0
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for payroll taxes, value	(348)	0	$ 0	(348)	0	0
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for payroll taxes, shares			42,105
Excess tax benefits from vesting of restricted stock units	82	0	$ 0	82	0	0
Balance at Mar. 31, 2016	156,926	0	$ 3,000	20,262	132,865	799
Common Stock, Shares, Outstanding at Mar. 31, 2016			16,106,540
Balance at Dec. 31, 2016	$ 165,376	0	$ 3,000	21,462	141,956	(1,042)
Common Stock, Shares, Outstanding at Dec. 31, 2016	16,137,999		16,137,999
Stockholders' Equity [Roll Forward]
Net income	$ 6,106	0	$ 0	0	6,106	0
Other comprehensive income (loss), net of tax	1,072	0	0	0	0	1,072
Cash dividends declared, common stock	(2,743)	0	0	0	(2,743)	0
Stock-based compensation costs	514	0	0	514	0	0
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for payroll taxes, value	(553)	0	$ 0	(553)	0	0
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for payroll taxes, shares			49,162
Balance at Mar. 31, 2017	$ 169,772	$ 0	$ 3,000	$ 21,423	$ 145,319	$ 30
Common Stock, Shares, Outstanding at Mar. 31, 2017	16,187,161		16,187,161

Stockholders' Equity Parentheti

Stockholders' Equity Parenthetical (Parentheticals) - $ / shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Stockholders' Equity [Abstract]
Cash dividends declared per common share	$ 0.17	$ 0.16

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Cash Flows from Operating Activities:
Net income		$ 6,106	$ 5,696
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	[1]	0	200
Net amortization and accretion		904	1,106
Investment securities losses, net		3	0
Stock-based compensation		514	461
Increase in cash value of bank-owned life insurance		(154)	(168)
Gain from bank-owned life insurance		(307)	(443)
Depreciation		341	241
Deferred income taxes		450	460
Change in assets and liabilities:
(Increase) in accrued interest receivable		(264)	(585)
(Increase) decrease in other assets		(418)	252
(Decrease) in accrued expenses and other liabilities		(99)	(39)
Net cash provided by operating activities		7,076	7,181
Cash Flows from Investing Activities:
Proceeds from sales of securities available for sale		8,999	0
Proceeds from maturities and calls of investment securities		12,437	12,072
Purchases of securities available for sale		(21,108)	0
Purchases of Federal Home Loan Bank stock		(7,034)	(7,527)
Proceeds from redemption of Federal Home Loan Bank stock		5,695	7,621
Net increase in loans		(46,550)	(28,128)
Purchases of premises and equipment		(32)	(5,977)
Proceeds of principal and earnings from bank-owned life insurance		451	621
Net cash used in investing activities		(47,142)	(21,318)
Cash Flows from Financing Activities:
Net increase (decrease) in deposits		(17,851)	5,018
Net (decrease) in federal funds purchased		(8,265)	(1,075)
Net increase (decrease) in short-term borrowings		36,000	(2,000)
Principal payments on long-term debt		(828)	(815)
Common stock dividends paid		(2,743)	(2,571)
Restricted stock units withheld for payroll taxes		(553)	(348)
Net cash provided by (used in) financing activities		5,760	(1,791)
Net (decrease) in cash and cash equivalents		(34,306)	(15,928)
Cash and Cash Equivalents
Beginning		76,836	72,651
Ending		42,530	56,723
Supplemental Disclosures of Cash Flow Information:
Cash payments for interest		2,361	1,811
Cash payments for income taxes		$ 0	$ 0
[1]	The negative provisions for the various segments are either related to the decline in outstanding balances in each of those portfolio segments during the time periods disclosed and/or improvement in the credit quality factors related to those portfolio segments.

Basis of Presentation Organizat

Basis of Presentation Organization and Nature of Business and Summary of Significant Accounting Policies (Notes)	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]	The accompanying unaudited consolidated financial statements have been prepared by West Bancorporation, Inc. (the Company) pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements have been condensed or omitted pursuant to such rules and regulations. Although management believes that the disclosures are adequate to make the information presented understandable, it is suggested that these interim consolidated financial statements be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2016 . In the opinion of management, the accompanying consolidated financial statements of the Company contain all adjustments necessary to fairly present its financial position as of March 31, 2017 and December 31, 2016 , and net income, comprehensive income and cash flows for the three months ended March 31, 2017 and 2016 . The results for these interim periods may not be indicative of results for the entire year or for any other period. The consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (GAAP) established by the Financial Accounting Standards Board (FASB). References to GAAP issued by the FASB in these footnotes are to the FASB Accounting Standards Codification™ , sometimes referred to as the Codification or ASC. In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses for the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term are the fair value and other than temporary impairment (OTTI) of financial instruments and the allowance for loan losses. The accompanying unaudited consolidated financial statements include the accounts of the Company, West Bank and West Bank's wholly-owned subsidiary WB Funding Corporation (which had no activity). All significant intercompany transactions and balances have been eliminated in consolidation. In accordance with GAAP, West Bancorporation Capital Trust I is recorded on the books of the Company using the equity method of accounting and is not consolidated. Current accounting developments : In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606): Summary and Amendments that Create Revenue from Contracts with Customers (Topic 606) and Other Assets and Deferred Costs—Contracts with Customers (Subtopic 340-40) . The guidance in this update supersedes the revenue recognition requirements in ASC Topic 605, Revenue Recognition, and most industry-specific guidance throughout the industry topics of the Codification. For public companies, this update will be effective for interim and annual periods beginning after December 15, 2017. The Company has assessed the impact of this guidance and does not expect the guidance to have a material impact on the Company's consolidated financial statements. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The update enhances the reporting model for financial instruments to provide users of financial statements with more decision-useful information by updating certain aspects of recognition, measurement, presentation and disclosure of financial instruments. Among other changes, the update requires public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes, and clarifies that entities should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entities' other deferred tax assets. For public companies, this update will be effective for interim and annual periods beginning after December 15, 2017, and is to be applied on a modified retrospective basis. The Company is currently assessing the impact of this guidance, but does not expect the guidance to have a material impact on the Company's consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The guidance in the update supersedes the requirements in ASC Topic 840, Leases. The update will require business entities to recognize lease assets and liabilities on the balance sheet and to disclose key information about leasing arrangements. A lessee would recognize a liability to make lease payments and a right-of-use asset representing its right to use the leased asset for the lease term. For public companies, this update will be effective for interim and annual periods beginning after December 15, 2018, and is to be applied on a modified retrospective basis. The Company is currently assessing the impact of this guidance, but does not expect the guidance to have a material impact on the Company's consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, Compensation—Stock Compensation (Topic 718). The update simplifies several aspects of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The guidance also allows an entity to make an entity-wide accounting policy election to either estimate expected forfeitures or account for forfeitures as they occur. For public companies, the update was effective for annual periods beginning after December 15, 2016. Portions of the amended guidance were to be applied using a modified retrospective transition method, and others require prospective application. Upon adoption of this update on January 1, 2017, the Company made the accounting policy election to account for forfeitures as they occur. This resulted in no effect on the Company's consolidated financial statements, as prior stock-based compensation expense assumed no expected forfeitures. Also upon adoption, the Company, on a prospective basis, changed the treatment for recognizing the tax effects of differences between the deduction of an award for tax purposes and the cumulative compensation costs of that award upon vesting as an adjustment to tax expense rather than through equity. The calculation of the assumed proceeds of the treasury stock method was changed on a prospective basis to eliminate deferred taxes from the calculation. The net impact on the income statement is dependent upon the change in the Company's stock price from grant date to vesting date and cannot be predicted with any certainty. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments—Credit Losses (Topic 326). The amendments in this update require a financial asset (or a group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial assets to present the net carrying value at the amount expected to be collected on the financial assets. The income statement reflects the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectibility of the reported amount of financial assets. An entity must use judgment in determining the relevant information and estimation methods that are appropriate in its circumstances. The allowance for credit losses for purchased financial assets with a more-than-insignificant amount of credit deterioration since origination that are measured at amortized cost basis is determined in a similar manner to other financial assets measured at amortized cost basis; however, the initial allowance for credit losses is added to the purchase price rather than being reported as a credit loss expense. Only subsequent changes in the allowance for credit losses are recorded as a credit loss expense for these assets. Off-balance-sheet arrangements such as commitments to extend credit, guarantees, and standby letters of credit that are not considered derivatives under ASC 815 and are not unconditionally cancellable are also within the scope of this update. Credit losses relating to available-for-sale debt securities should be recorded through an allowance for credit losses. For public companies, the update is effective for annual periods beginning after December 15, 2019, including interim periods within those fiscal years. All entities may adopt the amendments in this update earlier as of fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. An entity will apply the amendments in this update on a modified retrospective basis through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. The Company is currently planning for the implementation of this accounting standard. It is too early to assess the impact that this guidance will have on the Company's consolidated financial statements. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. The amendments in this update provide guidance for eight specific cash flow classification issues for which current guidance is unclear or does not exist, thereby reducing diversity in practice. For public companies, the update is effective for annual periods beginning after December 15, 2017, with early adoption permitted. The Company's early adoption of the update as of January 1, 2017, did not have a material impact on the Company's consolidated financial statements. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory. This update simplifies the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. Current GAAP prohibits the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an outside party. The new guidance states that an entity should recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. Consequently, the amendments in this update eliminate the exception for an intra-entity transfer of an asset other than inventory. For public companies, the update is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods. Early adoption is permitted. The Company is currently assessing the impact of this guidance, but does not expect the guidance to have a material impact on the Company's consolidated financial statements. In March 2017, the FASB issued ASU 2017-08, Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20). This update amends the amortization period for certain purchased callable debt securities held at a premium. The update shortens the premium's amortization period to the earliest call date. For public companies, the update is effective for annual periods beginning after December 15, 2018, and is to be applied on a modified retrospective basis with a cumulative-effect adjustment directly to retained earnings as of the beginning of the adoption period. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments must be reflected as of the beginning of the fiscal year that includes that interim period. The Company is currently assessing the impact of this guidance, but does not expect the guidance to have a material impact on the Company's consolidated financial statements.

Earnings Per Common Share (Note

Earnings Per Common Share (Notes)	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Earnings per Common Share [Text Block]	Earnings per Common Share Basic earnings per common share are computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted earnings per common share reflect the potential dilution that could occur if the Company's outstanding restricted stock units were vested. The dilutive effect was computed using the treasury stock method, which assumes all stock-based awards were exercised and the hypothetical proceeds from exercise were used by the Company to purchase common stock at the average market price during the period. The incremental shares, to the extent they would have been dilutive, were included in the denominator of the diluted earnings per common share calculation. The calculations of earnings per common share and diluted earnings per common share for the three months ended March 31, 2017 and 2016 are presented in the following table. Three Months Ended March 31, (in thousands, except per share data) 2017 2016 Net income $ 6,106 $ 5,696 Weighted average common shares outstanding 16,141 16,070 Weighted average effect of restricted stock units outstanding 151 41 Diluted weighted average common shares outstanding 16,292 16,111 Basic earnings per common share $ 0.38 $ 0.35 Diluted earnings per common share $ 0.37 $ 0.35 Number of anti-dilutive common stock equivalents excluded from diluted earnings per share computation — 152

Investment Securities (Notes)

Investment Securities (Notes)	3 Months Ended
	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Investment Securities [Text Block]	Securities The following tables show the amortized cost, gross unrealized gains and losses, and fair value of investment securities, by investment security type as of March 31, 2017 and December 31, 2016 . March 31, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value Securities available for sale: U.S. government agencies and corporations $ 2,517 $ 48 $ — $ 2,565 State and political subdivisions 61,629 528 (200 ) 61,957 Collateralized mortgage obligations (1) 106,651 274 (995 ) 105,930 Mortgage-backed securities (1) 76,133 431 (292 ) 76,272 Trust preferred security 1,786 — (526 ) 1,260 Corporate notes 13,299 158 (15 ) 13,442 $ 262,015 $ 1,439 $ (2,028 ) $ 261,426 Securities held to maturity: State and political subdivisions $ 48,366 $ 187 $ (474 ) $ 48,079 December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value Securities available for sale: U.S. government agencies and corporations $ 2,524 $ 69 $ — $ 2,593 State and political subdivisions 64,551 376 (591 ) 64,336 Collateralized mortgage obligations (1) 103,038 255 (1,343 ) 101,950 Mortgage-backed securities (1) 80,614 341 (797 ) 80,158 Trust preferred security 1,784 — (534 ) 1,250 Corporate notes 10,326 25 (1 ) 10,350 $ 262,837 $ 1,066 $ (3,266 ) $ 260,637 Securities held to maturity: State and political subdivisions $ 48,386 $ 70 $ (667 ) $ 47,789 (1) All collateralized mortgage obligations and mortgage-backed securities consist of residential mortgage pass-through securities guaranteed by GNMA or issued by FNMA and real estate mortgage investment conduits guaranteed by FHLMC or GNMA. Investment securities with an amortized cost of approximately $130,847 and $141,995 as of March 31, 2017 and December 31, 2016 , respectively, were pledged to secure access to the Federal Reserve discount window, for public fund deposits, and for other purposes as required or permitted by law or regulation. The amortized cost and fair value of investment securities available for sale as of March 31, 2017 , by contractual maturity, are shown below. Certain securities have call features that allow the issuer to call the securities prior to maturity. Expected maturities may differ from contractual maturities for collateralized mortgage obligations and mortgage-backed securities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Therefore, collateralized mortgage obligations and mortgage-backed securities are not included in the maturity categories within the following maturity summary. March 31, 2017 Amortized Cost Fair Value Due in one year or less $ 7,976 $ 8,032 Due after one year through five years 7,296 7,398 Due after five years through ten years 34,063 34,290 Due after ten years 29,896 29,504 79,231 79,224 Collateralized mortgage obligations and mortgage-backed securities 182,784 182,202 $ 262,015 $ 261,426 The amortized cost and fair value of investment securities held to maturity as of March 31, 2017 , by contractual maturity, are shown below. Certain securities have call features that allow the issuer to call the securities prior to maturity. March 31, 2017 Amortized Cost Fair Value Due in one year or less $ — $ — Due after one year through five years 485 477 Due after five years through ten years 20,445 20,308 Due after ten years 27,436 27,294 $ 48,366 $ 48,079 The details of the sales of investment securities available for sale for the three months ended March 31, 2017 and 2016 are summarized in the following table. Three Months Ended March 31, 2017 2016 Proceeds from sales $ 8,999 $ — Gross gains on sales 39 — Gross losses on sales 42 — The following tables show the fair value and gross unrealized losses, aggregated by investment type and length of time that individual securities have been in a continuous loss position, as of March 31, 2017 and December 31, 2016 . March 31, 2017 Less than 12 months 12 months or longer Total Fair Value Gross Unrealized (Losses) Fair Value Gross Unrealized (Losses) Fair Value Gross Unrealized (Losses) Securities available for sale: U.S. government agencies and corporations $ — $ — $ — $ — $ — $ — State and political subdivisions 23,378 (200 ) — — 23,378 (200 ) Collateralized mortgage obligations 78,029 (926 ) 2,400 (69 ) 80,429 (995 ) Mortgage-backed securities 51,814 (292 ) — — 51,814 (292 ) Trust preferred security — — 1,260 (526 ) 1,260 (526 ) Corporate notes 1,485 (15 ) — — 1,485 (15 ) $ 154,706 $ (1,433 ) $ 3,660 $ (595 ) $ 158,366 $ (2,028 ) Securities held to maturity: State and political subdivisions $ 22,392 $ (239 ) $ 4,208 $ (235 ) $ 26,600 $ (474 ) December 31, 2016 Less than 12 months 12 months or longer Total Fair Value Gross Unrealized (Losses) Fair Value Gross Unrealized (Losses) Fair Value Gross Unrealized (Losses) Securities available for sale: U.S. government agencies and corporations $ — $ — $ — $ — $ — $ — State and political subdivisions 34,903 (591 ) — — 34,903 (591 ) Collateralized mortgage obligations 75,771 (1,255 ) 2,538 (88 ) 78,309 (1,343 ) Mortgage-backed securities 60,221 (797 ) — — 60,221 (797 ) Trust preferred security — — 1,250 (534 ) 1,250 (534 ) Corporate notes 1,499 (1 ) — — 1,499 (1 ) $ 172,394 $ (2,644 ) $ 3,788 $ (622 ) $ 176,182 $ (3,266 ) Securities held to maturity: State and political subdivisions $ 32,976 $ (458 ) $ 3,968 $ (209 ) $ 36,944 $ (667 ) As of March 31, 2017 , the available for sale and held to maturity securities with unrealized losses that have existed for longer than one year included 12 state and political subdivision securities, one collateralized mortgage obligation security and one trust preferred security. The Company believes the unrealized losses on investments available for sale and held to maturity as of March 31, 2017 were due to market conditions rather than reduced estimated cash flows. The Company does not intend to sell these securities, does not anticipate that these securities will be required to be sold before anticipated recovery, and expects full principal and interest to be collected. Therefore, the Company did not consider these investments to have OTTI as of March 31, 2017 .

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses (Notes)	3 Months Ended
	Mar. 31, 2017
Loans and Allowance for Loan Losses [Abstract]
Loans and Allowance for Loan Losses [Text Block]	Loans and Allowance for Loan Losses Loans consisted of the following segments as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 Commercial $ 332,771 $ 334,014 Real estate: Construction, land and land development 234,010 205,610 1-4 family residential first mortgages 48,158 47,184 Home equity 17,909 18,057 Commercial 807,319 788,000 Consumer and other loans 7,964 8,355 1,448,131 1,401,220 Net unamortized fees and costs (1,396 ) (1,350 ) $ 1,446,735 $ 1,399,870 Real estate loans of approximately $710,000 and $680,000 were pledged as security for Federal Home Loan Bank (FHLB) advances as of March 31, 2017 and December 31, 2016 , respectively. Loans are stated at the principal amounts outstanding, net of unamortized loan fees and costs, with interest income recognized on the interest method based upon those outstanding loan balances. Loan origination fees, net of certain direct origination costs, are deferred and recognized as an adjustment of the related loan yield using the interest method. Loans are reported by the portfolio segments identified above and are analyzed by management on this basis. All loan policies identified below apply to all segments of the loan portfolio. Delinquencies are determined based on the payment terms of the individual loan agreements. The accrual of interest on past due and other impaired loans is generally discontinued at 90 days past due or when, in the opinion of management, the borrower may be unable to make all payments pursuant to contractual terms. Unless considered collectible, all interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income, if accrued in the current year, or charged to the allowance for loan losses, if accrued in the prior year. Generally, all payments received while a loan is on nonaccrual status are applied to the principal balance of the loan. Loans are returned to accrual status when all principal and interest amounts contractually due are brought current and future payments are reasonably assured. A loan is classified as a troubled debt restructured (TDR) loan when the Company separately concludes that a borrower is experiencing financial difficulties and a concession is granted that would not otherwise be considered. Concessions may include a restructuring of the loan terms to alleviate the burden of the borrower's cash requirements, such as an extension of the payment terms beyond the original maturity date or a change in the interest rate charged. TDR loans with extended payment terms are accounted for as impaired until performance is established. A change to the interest rate would change the classification of a loan to a TDR loan if the restructured loan yields a rate that is below a market rate for that of a new loan with comparable risk. TDR loans with below-market rates are considered impaired until fully collected. TDR loans may also be reported as nonaccrual or past due 90 days if they are not performing per the restructured terms. Based upon its ongoing assessment of credit quality within the loan portfolio, the Company maintains a Watch List, which includes loans classified as Doubtful, Substandard and Watch according to the Company's classification criteria. These loans involve the anticipated potential for payment defaults or collateral inadequacies. A loan on the Watch List is considered impaired when management believes it is probable the Company will be unable to collect all contractual principal and interest payments due in accordance with the terms of the loan agreement. Impaired loans are measured based on the present value of expected future cash flows discounted at the loan's effective interest rate or, as a practical expedient, at the loan's observable market price or the fair value of the collateral if the loan is collateral dependent. The amount of impairment, if any, and any subsequent changes are included in the allowance for loan losses. TDR loans totaled $391 and $426 as of March 31, 2017 and December 31, 2016 , respectively, and were included in nonaccrual loans. There were no loan modifications considered to be TDR that occurred during the three months ended March 31, 2017 and 2016 . No TDR loans that have been modified within the 12 months preceding March 31, 2017 and 2016 have subsequently had a payment default. A TDR loan is considered to have a payment default when it is past due 30 days or more. The following table summarizes the recorded investment in impaired loans by segment, broken down by loans with no related allowance for loan losses and loans with a related allowance and the amount of that allowance as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 Recorded Investment Unpaid Principal Balance Related Allowance Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Commercial $ — $ — $ — $ 35 $ 35 $ — Real estate: Construction, land and land development — — — — — — 1-4 family residential first mortgages 104 104 — 108 108 — Home equity 29 29 — 41 41 — Commercial 304 304 — 335 335 — Consumer and other loans — — — — — — 437 437 — 519 519 — With an allowance recorded: Commercial 87 87 87 91 91 91 Real estate: Construction, land and land development — — — — — — 1-4 family residential first mortgages — — — — — — Home equity 264 264 264 276 276 276 Commercial 132 132 132 136 136 136 Consumer and other loans — — — — — — 483 483 483 503 503 503 Total: Commercial 87 87 87 126 126 91 Real estate: Construction, land and land development — — — — — — 1-4 family residential first mortgages 104 104 — 108 108 — Home equity 293 293 264 317 317 276 Commercial 436 436 132 471 471 136 Consumer and other loans — — — — — — $ 920 $ 920 $ 483 $ 1,022 $ 1,022 $ 503 The balance of impaired loans at March 31, 2017 and December 31, 2016 was composed of 8 and 10 different borrowers, respectively. The Company has no commitments to advance additional funds on any of the impaired loans. The following table summarizes the average recorded investment and interest income recognized on impaired loans by segment for the three months ended March 31, 2017 and 2016 . Three Months Ended March 31, 2017 2016 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized With no related allowance recorded: Commercial $ 26 $ — $ — $ — Real estate: Construction, land and land development — — 28 — 1-4 family residential first mortgages 107 — 347 1 Home equity 38 — — — Commercial 319 — 440 — Consumer and other loans — — — — 490 — 815 1 With an allowance recorded: Commercial 89 — 140 — Real estate: Construction, land and land development — — — — 1-4 family residential first mortgages — — — — Home equity 272 — 267 — Commercial 134 — 152 — Consumer and other loans — — — — 495 — 559 — Total: Commercial 115 — 140 — Real estate: Construction, land and land development — — 28 — 1-4 family residential first mortgages 107 — 347 1 Home equity 310 — 267 — Commercial 453 — 592 — Consumer and other loans — — — — $ 985 $ — $ 1,374 $ 1 The following tables provide an analysis of the payment status of the recorded investment in loans as of March 31, 2017 and December 31, 2016 . March 31, 2017 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Total Past Due Current Nonaccrual Loans Total Loans Commercial $ 44 $ — $ — $ 44 $ 332,640 $ 87 $ 332,771 Real estate: Construction, land and land development — — — — 234,010 — 234,010 1-4 family residential first mortgages — — — — 48,054 104 48,158 Home equity — — — — 17,616 293 17,909 Commercial — — — — 806,883 436 807,319 Consumer and other — — — — 7,964 — 7,964 Total $ 44 $ — $ — $ 44 $ 1,447,167 $ 920 $ 1,448,131 December 31, 2016 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Total Past Due Current Nonaccrual Loans Total Loans Commercial $ 109 $ — $ — $ 109 $ 333,779 $ 126 $ 334,014 Real estate: Construction, land and land development — — — — 205,610 — 205,610 1-4 family residential first mortgages 64 — — 64 47,012 108 47,184 Home equity — — — — 17,740 317 18,057 Commercial — — — — 787,529 471 788,000 Consumer and other — — — — 8,355 — 8,355 Total $ 173 $ — $ — $ 173 $ 1,400,025 $ 1,022 $ 1,401,220 The following tables present the recorded investment in loans by credit quality indicator and loan segment as of March 31, 2017 and December 31, 2016 . March 31, 2017 Pass Watch Substandard Doubtful Total Commercial $ 328,736 $ 2,763 $ 1,272 $ — $ 332,771 Real estate: Construction, land and land development 232,972 — 1,038 — 234,010 1-4 family residential first mortgages 47,203 851 104 — 48,158 Home equity 17,462 60 387 — 17,909 Commercial 787,868 18,717 734 — 807,319 Consumer and other 7,919 45 — — 7,964 Total $ 1,422,160 $ 22,436 $ 3,535 $ — $ 1,448,131 December 31, 2016 Pass Watch Substandard Doubtful Total Commercial $ 329,366 $ 3,303 $ 1,345 $ — $ 334,014 Real estate: Construction, land and land development 204,572 — 1,038 — 205,610 1-4 family residential first mortgages 46,278 798 108 — 47,184 Home equity 17,646 — 411 — 18,057 Commercial 769,010 18,392 598 — 788,000 Consumer and other 8,355 — — — 8,355 Total $ 1,375,227 $ 22,493 $ 3,500 $ — $ 1,401,220 All loans are subject to the assessment of a credit quality indicator. Risk ratings are assigned for each loan at the time of approval, and they change as circumstances dictate during the term of the loan. The Company utilizes a 9-point risk rating scale as shown below, with ratings 1 - 5 included in the Pass column, rating 6 included in the Watch column, ratings 7 - 8 included in the Substandard column and rating 9 included in the Doubtful column. All loans classified as impaired that are included in the specific evaluation of the allowance for loan losses are included in the Substandard column along with all other loans with ratings of 7 - 8. Risk rating 1: The loan is secured by cash equivalent collateral. Risk rating 2: The loan is secured by properly margined marketable securities, bonds or cash surrender value of life insurance. Risk rating 3: The borrower is in strong financial condition and has strong debt service capacity. The loan is performing as agreed, and the financial characteristics and trends of the borrower exceed industry statistics. Risk rating 4: The borrower's financial condition is satisfactory and stable. The borrower has satisfactory debt service capacity, and the loan is well secured. The loan is performing as agreed, and the financial characteristics and trends fall in line with industry statistics. Risk rating 5: The borrower's financial condition is less than satisfactory. The loan is still generally paying as agreed, but strained cash flows may cause some slowness in payments. The collateral values adequately preclude loss on the loan. Financial characteristics and trends lag industry statistics. There may be noncompliance with loan covenants. Risk rating 6: The borrower's financial condition is deficient. Payment delinquencies may be more common. Collateral values still protect from loss, but margins are narrow. The loan may be reliant on secondary sources of repayment, including liquidation of collateral and guarantor support. Risk rating 7: The loan is inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Well-defined weaknesses exist that jeopardize the liquidation of the debt. The Company is inadequately protected by the valuation or paying capacity of the collateral pledged. If deficiencies are not corrected, there is a distinct possibility that a loss will be sustained. Risk rating 8: All the characteristics of rating 7 exist with the added condition that the loan is past due more than 90 days or there is reason to believe the Company will not receive its principal and interest according to the terms of the loan agreement. Risk rating 9: All the weaknesses inherent in risk ratings 7 and 8 exist with the added condition that collection or liquidation, on the basis of currently known facts, conditions and values, is highly questionable and improbable. A loan reaching this category would most likely be charged off. Credit quality indicators for all loans and the Company's risk rating process are dynamic and updated on a continuous basis. Risk ratings are updated as circumstances that could affect the repayment of an individual loan are brought to management's attention through an established monitoring process. Individual lenders initiate changes as appropriate for ratings 1 through 5, and changes for ratings 6 through 9 are initiated via communications with management. The likelihood of loss increases as the risk rating increases and is generally preceded by a loan appearing on the Watch List, which consists of all loans with a risk rating of 6 or worse. Written action plans with firm target dates for resolution of identified problems are maintained and reviewed on a quarterly basis for all segments of criticized loans. In addition to the Company's internal credit monitoring practices and procedures, an outsourced independent credit review function is in place to further assess assigned internal risk classifications and monitor compliance with internal lending policies and procedures. In all portfolio segments, the primary risks are that a borrower's income stream diminishes to the point that the borrower is not able to make scheduled principal and interest payments and any collateral securing the loan declines in value. The risk of declining collateral values is present for most types of loans. Commercial loans consist primarily of loans to businesses for various purposes, including revolving lines to finance current operations, inventory and accounts receivable, and capital expenditure loans to finance equipment and other fixed assets. These loans generally have short maturities, have either adjustable or fixed interest rates, and are either unsecured or secured by inventory, accounts receivable and/or fixed assets. For commercial loans, the primary source of repayment is from the operation of the business. Real estate loans include various types of loans for which the Company holds real property as collateral, and consist of loans on commercial properties and single and multifamily residences. Real estate loans are typically structured to mature or reprice every five years with payments based on amortization periods up to 30 years. The majority of construction loans are to contractors and developers for construction of commercial buildings or residential real estate. These loans typically have maturities of up to 24 months. The Company's loan policy includes minimum appraisal and other credit guidelines. Consumer loans include loans extended to individuals for household, family and other personal expenditures not secured by real estate. The majority of the Company's consumer lending is for vehicles, consolidation of personal debts and household improvements. The repayment source for consumer loans, including 1-4 family residential and home equity loans, is typically wages. The allowance for loan losses is established through a provision for loan losses charged to expense. The allowance is an amount that management believes will be adequate to absorb probable losses on existing loans based on an evaluation of the collectability of loans and prior loss experience. This evaluation also takes into consideration such factors as changes in the nature and volume of the loan portfolio, overall portfolio quality, the review of specific problem loans, and the current economic conditions that may affect the borrower's ability to pay. Loans are charged-off against the allowance for loan losses when management believes that collectability of the principal is unlikely. While management uses the best information available to make its evaluations, future adjustments to the allowance may be necessary if there are significant changes in economic conditions or the other factors relied upon. The allowance for loan losses consists of specific and general components. The specific component relates to loans that meet the definition of impaired. The general component covers the remaining loans and is based on historical loss experience adjusted for qualitative factors such as delinquency trends, loan growth, economic elements and local market conditions. These same policies are applied to all segments of loans. In addition, regulatory agencies, as an integral part of their examination processes, periodically review the Company's allowance for loan losses, and may require the Company to make additions to the allowance based on their judgment about information available to them at the time of their examinations. The following tables detail the changes in the allowance for loan losses by segment for the three months ended March 31, 2017 and 2016 . Three Months Ended March 31, 2017 Real Estate Commercial Construction and Land 1-4 Family Residential Home Equity Commercial Consumer and Other Total Beginning balance $ 3,881 $ 2,639 $ 317 $ 478 $ 8,697 $ 100 $ 16,112 Charge-offs (60 ) — — — — — (60 ) Recoveries 59 303 1 8 3 1 375 Provision (1) (80 ) (28 ) (3 ) (39 ) 148 2 — Ending balance $ 3,800 $ 2,914 $ 315 $ 447 $ 8,848 $ 103 $ 16,427 Three Months Ended March 31, 2016 Real Estate Commercial Construction and Land 1-4 Family Residential Home Equity Commercial Consumer and Other Total Beginning balance $ 4,369 $ 2,338 $ 508 $ 481 $ 7,254 $ 17 $ 14,967 Charge-offs — — — — — — — Recoveries 42 44 11 7 3 6 113 Provision (1) (268 ) 280 (123 ) 31 227 53 200 Ending balance $ 4,143 $ 2,662 $ 396 $ 519 $ 7,484 $ 76 $ 15,280 (1) The negative provisions for the various segments are either related to the decline in outstanding balances in each of those portfolio segments during the time periods disclosed and/or improvement in the credit quality factors related to those portfolio segments. The following tables present a breakdown of the allowance for loan losses disaggregated on the basis of impairment analysis method by segment as of March 31, 2017 and December 31, 2016 . March 31, 2017 Real Estate Commercial Construction and Land 1-4 Family Residential Home Equity Commercial Consumer and Other Total Ending balance: Individually evaluated for impairment $ 87 $ — $ — $ 264 $ 132 $ — $ 483 Collectively evaluated for impairment 3,713 2,914 315 183 8,716 103 15,944 Total $ 3,800 $ 2,914 $ 315 $ 447 $ 8,848 $ 103 $ 16,427 December 31, 2016 Real Estate Commercial Construction and Land 1-4 Family Residential Home Equity Commercial Consumer and Other Total Ending balance: Individually evaluated for impairment $ 91 $ — $ — $ 276 $ 136 $ — $ 503 Collectively evaluated for impairment 3,790 2,639 317 202 8,561 100 15,609 Total $ 3,881 $ 2,639 $ 317 $ 478 $ 8,697 $ 100 $ 16,112 The following tables present the recorded investment in loans, exclusive of unamortized fees and costs, disaggregated on the basis of impairment analysis method by segment as of March 31, 2017 and December 31, 2016 . March 31, 2017 Real Estate Commercial Construction and Land 1-4 Family Residential Home Equity Commercial Consumer and Other Total Ending balance: Individually evaluated for impairment $ 87 $ — $ 104 $ 293 $ 436 $ — $ 920 Collectively evaluated for impairment 332,684 234,010 48,054 17,616 806,883 7,964 1,447,211 Total $ 332,771 $ 234,010 $ 48,158 $ 17,909 $ 807,319 $ 7,964 $ 1,448,131 December 31, 2016 Real Estate Commercial Construction and Land 1-4 Family Residential Home Equity Commercial Consumer and Other Total Ending balance: Individually evaluated for impairment $ 126 $ — $ 108 $ 317 $ 471 $ — $ 1,022 Collectively evaluated for impairment 333,888 205,610 47,076 17,740 787,529 8,355 1,400,198 Total $ 334,014 $ 205,610 $ 47,184 $ 18,057 $ 788,000 $ 8,355 $ 1,401,220

Derivatives (Notes)

Derivatives (Notes)	3 Months Ended
	Mar. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative [Text Block]	Derivatives The Company has entered into various forward-starting interest rate swap transactions to effectively convert variable rate FHLB advances and junior subordinated notes to fixed rate debt as of forward-starting dates. The swap transactions were designated as cash flow hedges. Three interest rate swaps, with a total notional amount of $70,000 , were terminated in 2015, subject to termination fees totaling $541 . The termination fees are being reclassified from accumulated other comprehensive income to interest expense over the remaining life of the underlying cash flows through June 2020. One interest rate swap, with a notional amount of $30,000 , became effective in December 2015. One interest rate swap, with a notional amount of $20,000 , has a forward-starting date in September 2018. No amount of ineffectiveness was included in net income for the three months ended March 31, 2017 or 2016 , and the Company estimates there will be approximately $426 of cash payments and reclassification from accumulated other comprehensive income to interest expense through the 12 months ended March 31, 2018. Derivative contracts are executed with a Credit Support Annex, which is a bilateral ratings-sensitive agreement that requires collateral postings at established credit threshold levels. These agreements protect the interests of the Company and its counterparties should either party suffer a credit rating deterioration. As of March 31, 2017 and December 31, 2016 , the Company pledged $470 and $470 , respectively, of collateral to the counterparty in the form of cash on deposit with a third party. The Company's counterparty was required to pledge $1,110 and $1,070 at March 31, 2017 and December 31, 2016 , respectively. The table below identifies the balance sheet category and fair values of the Company's derivative instruments designated as cash flow hedges as of March 31, 2017 and December 31, 2016 . Interest Rate Swap Notional Amount Fair Value Balance Sheet Category Weighted Average Receive Rate Weighted Average Pay Rate Maturity March 31, 2017 Interest rate swap $ 30,000 $ (384 ) Other Liabilities 1.46 % 2.52 % 9/21/2020 Interest rate swap (1) 20,000 1,055 Other Assets — 4.81 % 9/30/2026 December 31, 2016 Interest rate swap 30,000 (496 ) Other Liabilities 1.30 % 2.52 % 9/21/2020 Interest rate swap (1) 20,000 1,068 Other Assets — 4.81 % 9/30/2026 (1) This swap is a forward starting swap with a weighted average pay rate of 4.81 percent beginning September 30, 2018. No interest payments are required related to this swap until December 30, 2018. The following table identifies the pre-tax gains (losses) recognized on the Company's derivative instruments designated as cash flow hedges for the three months ended March 31, 2017 and 2016 . Effective Portion Ineffective Portion Amount of Reclassified from AOCI into Income Recognized in Income on Derivatives Pre-tax Gain (Loss) Recognized Amount of Amount of Interest Rate Swap in OCI Category Gain (Loss) Category Gain (Loss) March 31, 2017 $ 9 Interest Expense $ (117 ) Other Income $ — March 31, 2016 (830 ) Interest Expense (151 ) Other Income —

Deferred Income Taxes (Notes)

Deferred Income Taxes (Notes)	3 Months Ended
	Mar. 31, 2017
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred Income Taxes [Text Block]	Deferred Income Taxes Net deferred tax assets consisted of the following as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 Deferred tax assets: Allowance for loan losses $ 6,242 $ 6,123 Net unrealized losses on securities available for sale 110 719 Intangibles 385 462 Accrued expenses 464 706 Restricted stock compensation 215 446 State net operating loss carryforward 1,299 1,271 Other 186 190 8,901 9,917 Deferred tax liabilities: Net deferred loan fees and costs 311 321 Net unrealized gains on interest rate swaps 128 80 Premises and equipment 1,068 1,027 Other 245 261 1,752 1,689 Net deferred tax assets before valuation allowance 7,149 8,228 Valuation allowance (1,299 ) (1,271 ) Net deferred tax assets $ 5,850 $ 6,957 The Company has recorded a valuation allowance against the tax effect of the state net operating loss carryforwards, as management believes it is more likely than not that this carryforward will expire without being utilized.

Comprehensive Income (Notes)

Comprehensive Income (Notes)	3 Months Ended
	Mar. 31, 2017
Equity [Abstract]
Comprehensive Income [Text Block]	. Accumulated Other Comprehensive Income (Loss) The following table summarizes the changes in the balances of each component of accumulated other comprehensive income (loss), net of tax, for the three months ended March 31, 2017 and 2016 . Unrealized Unrealized Accumulated Gains Gains Other (Losses) on (Losses) on Comprehensive Securities Derivatives Income (Loss) Balance, December 31, 2015 $ 342 $ (772 ) $ (430 ) Other comprehensive income (loss) before reclassifications 1,665 (515 ) 1,150 Amounts reclassified from accumulated other comprehensive income (15 ) 94 79 Net current period other comprehensive income (loss) 1,650 (421 ) 1,229 Balance, March 31, 2016 $ 1,992 $ (1,193 ) $ 799 Balance, December 31, 2016 $ (1,172 ) $ 130 $ (1,042 ) Other comprehensive income before reclassifications 996 6 1,002 Amounts reclassified from accumulated other comprehensive income (2 ) 72 70 Net current period other comprehensive income 994 78 1,072 Balance, March 31, 2017 $ (178 ) $ 208 $ 30

Commitments and Contingencies (

Commitments and Contingencies (Notes)	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies [Text Block]	Commitments and Contingencies Financial instruments with off-balance-sheet risk : The Company is party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. These instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the consolidated balance sheets. The Company's exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby letters of credit is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations that it uses for on-balance-sheet instruments. The Company's commitments consisted of the following approximate amounts as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 Commitments to extend credit $ 658,652 $ 614,681 Standby letters of credit 5,811 5,487 $ 664,463 $ 620,168 West Bank previously executed Mortgage Partnership Finance (MPF) Master Commitments (Commitments) with the FHLB of Des Moines to deliver residential mortgage loans and to guarantee the payment of any realized losses that exceed the FHLB's first loss account for mortgages delivered under the Commitments. West Bank receives credit enhancement fees from the FHLB for providing this guarantee and continuing to assist with managing the credit risk of the MPF Program residential mortgage loans. At March 31, 2017 , the liability represented by the present value of the credit enhancement fees less any expected losses in the mortgages delivered under the Commitments was approximately $187 . The outstanding balance of mortgage loans sold under the MPF Program was $106,699 and $112,084 at March 31, 2017 and December 31, 2016 , respectively. Contractual commitments : The Company has remaining commitments to invest in five qualified affordable housing projects totaling $5,447 and $5,768 as of March 31, 2017 and December 31, 2016 , respectively. Contingencies : Neither the Company nor West Bank is a party, and no property of these entities is subject, to any material pending legal proceedings, other than ordinary routine litigation incidental to West Bank's business. The Company does not know of any proceeding contemplated by a governmental authority against the Company or West Bank.

Fair Value Measurements (Notes)

Fair Value Measurements (Notes)	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	Fair Value Measurements Accounting guidance on fair value measurements and disclosures defines fair value and establishes a framework for measuring the fair value of assets and liabilities using a hierarchy system. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in the market in which the reporting entity transacts business. The Company's balance sheet contains investment securities available for sale and derivative instruments that are recorded at fair value on a recurring basis. The three-level valuation hierarchy for disclosure of fair value is as follows: Level 1 uses quoted market prices in active markets for identical assets or liabilities. Level 2 uses observable market-based inputs or unobservable inputs that are corroborated by market data. Level 3 uses unobservable inputs that are not corroborated by market data. The Company's policy is to recognize transfers between Levels at the end of each reporting period, if applicable. There were no transfers between Levels of the fair value hierarchy during the three months ended March 31, 2017 . The following is a description of valuation methodologies used for financial assets and liabilities recorded at fair value on a recurring basis. Investment securities available for sale: When available, quoted market prices are used to determine the fair value of investment securities. If quoted market prices are not available, the Company determines fair value based on various sources and may apply matrix pricing with observable prices for similar bonds where a price for the identical bond is not observable. The fair values of these securities are determined by pricing models that consider observable market data such as interest rate volatilities, LIBOR yield curve, credit spreads, prices from market makers and live trading systems. Level 1 securities include certain corporate bonds and preferred stocks, and would include U.S. Treasuries, if any were held. Level 2 securities include U.S. government and agency securities, collateralized mortgage obligations, mortgage-backed securities, state and political subdivision securities, and one trust preferred security. The Company currently holds no investment securities classified as Level 3. Generally, management obtains the fair value of investment securities at the end of each reporting period via a third-party pricing service. Management reviewed the valuation process used by the third party and believed that process was valid. On a quarterly basis, management corroborates the fair values of a randomly selected sample of investment securities by obtaining pricing from an independent investment portfolio management firm and compares the two sets of fair values. Any significant variances are reviewed and investigated. In addition, the Company has a practice of further testing the fair values by selecting a sample of investment securities from each category of securities. For that sample, the prices are further validated by management, with assistance from an independent investment portfolio management firm, by obtaining details of the inputs used by the pricing service. Those inputs were independently tested, and management concluded the fair values were consistent with GAAP requirements and the investment securities were properly classified in the fair value hierarchy as of the end of the period covered by this report. Derivative instruments: The Company's derivative instruments consist of interest rate swaps, which are accounted for as a cash flow hedge. The Company's derivative positions are classified within Level 2 of the fair value hierarchy and are valued using models generally accepted in the financial services industry and that use actively quoted or observable market input values from external market data providers and/or non-binding broker-dealer quotations. The fair value of the derivatives are determined using discounted cash flow models. These models’ key assumptions include the contractual terms of the contract along with significant observable inputs, including interest rates, yield curves, nonperformance risk and volatility. The following tables present the balances of financial assets and liabilities measured at fair value on a recurring basis by level as of March 31, 2017 and December 31, 2016 . March 31, 2017 Total Level 1 Level 2 Level 3 Financial assets: Investment securities available for sale: U.S. government agencies and corporations $ 2,565 $ — $ 2,565 $ — State and political subdivisions 61,957 — 61,957 — Collateralized mortgage obligations 105,930 — 105,930 — Mortgage-backed securities 76,272 — 76,272 — Trust preferred security 1,260 — 1,260 — Corporate notes 13,442 13,142 300 — Derivative instrument, interest rate swap 1,055 — 1,055 — Financial liabilities: Derivative instrument, interest rate swap $ 384 $ — $ 384 $ — December 31, 2016 Total Level 1 Level 2 Level 3 Financial assets: Investment securities available for sale: U.S. government agencies and corporations $ 2,593 $ — $ 2,593 $ — State and political subdivisions 64,336 — 64,336 — Collateralized mortgage obligations 101,950 — 101,950 — Mortgage-backed securities 80,158 — 80,158 — Trust preferred security 1,250 — 1,250 — Corporate notes 10,350 10,050 300 — Derivative instrument, interest rate swap 1,068 — 1,068 — Financial liabilities: Derivative instrument, interest rate swap $ 496 $ — $ 496 $ — Certain assets 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). As of both March 31, 2017 and December 31, 2016 , impaired loans for which a fair value adjustment was recorded were recorded at a net value of $0 as of each date. Impaired loans are evaluated and valued at the lower of cost or fair value when the loan is identified as impaired. Fair value is measured based on the value of the collateral securing these loans. The types of collateral vary widely and could include accounts receivables, inventory, a variety of equipment and real estate. Evaluations of the underlying assets are completed for each impaired loan with a specific reserve. Collateral evaluations are reviewed and discounted as appropriate based on knowledge of the specific type of collateral. In the case of real estate, an independent appraisal may be obtained. Types of discounts considered included aging of receivables, condition of the collateral, potential market for the collateral and estimated disposal costs. These discounts will vary from loan to loan and may be discounted based on management's opinions concerning market developments or the client's business. GAAP requires disclosure of the fair value of financial assets and financial liabilities, including those that are not measured and reported at fair value on a recurring or nonrecurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or nonrecurring basis are discussed above. The methodologies for other financial assets and financial liabilities are discussed below. Cash and due from banks : The carrying amount approximates fair value. Federal funds sold : The carrying amount approximates fair value. Investment securities held to maturity : The fair values of these securities, which are all state and political subdivisions, are determined by the same method previously described for investment securities available for sale. FHLB stock : The fair value of this restricted stock is estimated at its carrying value and redemption price of $100 per share. Loans : The fair values of fixed rate loans are estimated using discounted cash flow analysis based on observable market interest rates currently being offered for loans with similar terms to borrowers with similar credit quality. The carrying values of variable rate loans approximate their fair values. Deposits : The carrying amounts for demand and savings deposits, which represent the amounts payable on demand, approximate their fair values. The fair values for time deposits are estimated using discounted cash flow analysis, based on observable market interest rates currently being offered on time deposits with similar terms. Accrued interest receivable and payable : The fair values of both accrued interest receivable and payable approximate their carrying amounts. Borrowings : The carrying amounts of federal funds purchased, short-term borrowings, variable rate FHLB advances, and variable rate long-term borrowings approximate their fair values. Fair values of subordinated notes, a fixed rate FHLB advance and other long-term borrowings are estimated using discounted cash flow analysis, based on observable market interest rates currently being offered with similar terms. Commitments to extend credit and standby letters of credit : The approximate fair values of commitments and standby letters of credit are based on the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and creditworthiness of the counterparties. The following table presents the carrying amounts and approximate fair values of financial assets and liabilities as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 Fair Value Hierarchy Level Carrying Amount Approximate Fair Value Carrying Amount Approximate Fair Value Financial assets: Cash and due from banks Level 1 $ 34,994 $ 34,994 $ 40,943 $ 40,943 Federal funds sold Level 1 7,536 7,536 35,893 35,893 Investment securities available for sale See previous table 261,426 261,426 260,637 260,637 Investment securities held to maturity Level 2 48,386 48,079 48,386 47,789 Federal Home Loan Bank stock Level 1 12,110 12,110 10,771 10,771 Loans, net (1) Level 2 1,430,308 1,421,808 1,383,758 1,382,569 Accrued interest receivable Level 1 5,585 5,585 5,321 5,321 Interest rate swap See previous table 1,055 1,055 1,068 1,068 Financial liabilities: Deposits Level 2 $ 1,528,754 $ 1,528,615 $ 1,546,605 $ 1,546,307 Federal funds purchased Level 1 1,425 1,425 9,690 9,690 Short-term borrowings Level 1 36,000 36,000 — — Subordinated notes, net Level 2 20,402 12,883 20,398 12,703 Federal Home Loan Bank advances, net Level 2 100,254 100,293 99,886 99,959 Long-term debt, net Level 2 4,300 4,229 5,126 5,054 Accrued interest payable Level 1 321 321 280 280 Interest rate swap See previous table 384 384 496 496 Off-balance-sheet financial instruments: Commitments to extend credit Level 3 — — — — Standby letters of credit Level 3 — — — — (1) All loans are Level 2 except impaired loans with a net value of $0 as of both March 31, 2017 and December 31, 2016 , which are Level 3.

Basis of Presentation (Policies

Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Accounting, Policy [Policy Text Block]	The accompanying unaudited consolidated financial statements have been prepared by West Bancorporation, Inc. (the Company) pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements have been condensed or omitted pursuant to such rules and regulations. Although management believes that the disclosures are adequate to make the information presented understandable, it is suggested that these interim consolidated financial statements be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2016 . In the opinion of management, the accompanying consolidated financial statements of the Company contain all adjustments necessary to fairly present its financial position as of March 31, 2017 and December 31, 2016 , and net income, comprehensive income and cash flows for the three months ended March 31, 2017 and 2016 . The results for these interim periods may not be indicative of results for the entire year or for any other period. The consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (GAAP) established by the Financial Accounting Standards Board (FASB). References to GAAP issued by the FASB in these footnotes are to the FASB Accounting Standards Codification™ , sometimes referred to as the Codification or ASC.
Use of Estimates, Policy [Policy Text Block]	In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses for the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term are the fair value and other than temporary impairment (OTTI) of financial instruments and the allowance for loan losses
Consolidation, Policy [Policy Text Block]	The accompanying unaudited consolidated financial statements include the accounts of the Company, West Bank and West Bank's wholly-owned subsidiary WB Funding Corporation (which had no activity). All significant intercompany transactions and balances have been eliminated in consolidation. In accordance with GAAP, West Bancorporation Capital Trust I is recorded on the books of the Company using the equity method of accounting and is not consolidated.
New Accounting Pronouncements, Policy [Policy Text Block]	Current accounting developments : In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606): Summary and Amendments that Create Revenue from Contracts with Customers (Topic 606) and Other Assets and Deferred Costs—Contracts with Customers (Subtopic 340-40) . The guidance in this update supersedes the revenue recognition requirements in ASC Topic 605, Revenue Recognition, and most industry-specific guidance throughout the industry topics of the Codification. For public companies, this update will be effective for interim and annual periods beginning after December 15, 2017. The Company has assessed the impact of this guidance and does not expect the guidance to have a material impact on the Company's consolidated financial statements. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The update enhances the reporting model for financial instruments to provide users of financial statements with more decision-useful information by updating certain aspects of recognition, measurement, presentation and disclosure of financial instruments. Among other changes, the update requires public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes, and clarifies that entities should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entities' other deferred tax assets. For public companies, this update will be effective for interim and annual periods beginning after December 15, 2017, and is to be applied on a modified retrospective basis. The Company is currently assessing the impact of this guidance, but does not expect the guidance to have a material impact on the Company's consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The guidance in the update supersedes the requirements in ASC Topic 840, Leases. The update will require business entities to recognize lease assets and liabilities on the balance sheet and to disclose key information about leasing arrangements. A lessee would recognize a liability to make lease payments and a right-of-use asset representing its right to use the leased asset for the lease term. For public companies, this update will be effective for interim and annual periods beginning after December 15, 2018, and is to be applied on a modified retrospective basis. The Company is currently assessing the impact of this guidance, but does not expect the guidance to have a material impact on the Company's consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, Compensation—Stock Compensation (Topic 718). The update simplifies several aspects of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The guidance also allows an entity to make an entity-wide accounting policy election to either estimate expected forfeitures or account for forfeitures as they occur. For public companies, the update was effective for annual periods beginning after December 15, 2016. Portions of the amended guidance were to be applied using a modified retrospective transition method, and others require prospective application. Upon adoption of this update on January 1, 2017, the Company made the accounting policy election to account for forfeitures as they occur. This resulted in no effect on the Company's consolidated financial statements, as prior stock-based compensation expense assumed no expected forfeitures. Also upon adoption, the Company, on a prospective basis, changed the treatment for recognizing the tax effects of differences between the deduction of an award for tax purposes and the cumulative compensation costs of that award upon vesting as an adjustment to tax expense rather than through equity. The calculation of the assumed proceeds of the treasury stock method was changed on a prospective basis to eliminate deferred taxes from the calculation. The net impact on the income statement is dependent upon the change in the Company's stock price from grant date to vesting date and cannot be predicted with any certainty. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments—Credit Losses (Topic 326). The amendments in this update require a financial asset (or a group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial assets to present the net carrying value at the amount expected to be collected on the financial assets. The income statement reflects the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectibility of the reported amount of financial assets. An entity must use judgment in determining the relevant information and estimation methods that are appropriate in its circumstances. The allowance for credit losses for purchased financial assets with a more-than-insignificant amount of credit deterioration since origination that are measured at amortized cost basis is determined in a similar manner to other financial assets measured at amortized cost basis; however, the initial allowance for credit losses is added to the purchase price rather than being reported as a credit loss expense. Only subsequent changes in the allowance for credit losses are recorded as a credit loss expense for these assets. Off-balance-sheet arrangements such as commitments to extend credit, guarantees, and standby letters of credit that are not considered derivatives under ASC 815 and are not unconditionally cancellable are also within the scope of this update. Credit losses relating to available-for-sale debt securities should be recorded through an allowance for credit losses. For public companies, the update is effective for annual periods beginning after December 15, 2019, including interim periods within those fiscal years. All entities may adopt the amendments in this update earlier as of fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. An entity will apply the amendments in this update on a modified retrospective basis through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. The Company is currently planning for the implementation of this accounting standard. It is too early to assess the impact that this guidance will have on the Company's consolidated financial statements. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. The amendments in this update provide guidance for eight specific cash flow classification issues for which current guidance is unclear or does not exist, thereby reducing diversity in practice. For public companies, the update is effective for annual periods beginning after December 15, 2017, with early adoption permitted. The Company's early adoption of the update as of January 1, 2017, did not have a material impact on the Company's consolidated financial statements. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory. This update simplifies the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. Current GAAP prohibits the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an outside party. The new guidance states that an entity should recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. Consequently, the amendments in this update eliminate the exception for an intra-entity transfer of an asset other than inventory. For public companies, the update is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods. Early adoption is permitted. The Company is currently assessing the impact of this guidance, but does not expect the guidance to have a material impact on the Company's consolidated financial statements. In March 2017, the FASB issued ASU 2017-08, Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20). This update amends the amortization period for certain purchased callable debt securities held at a premium. The update shortens the premium's amortization period to the earliest call date. For public companies, the update is effective for annual periods beginning after December 15, 2018, and is to be applied on a modified retrospective basis with a cumulative-effect adjustment directly to retained earnings as of the beginning of the adoption period. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments must be reflected as of the beginning of the fiscal year that includes that interim period. The Company is currently assessing the impact of this guidance, but does not expect the guidance to have a material impact on the Company's consolidated financial statements.
Earnings Per Share, Policy [Policy Text Block]	Basic earnings per common share are computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted earnings per common share reflect the potential dilution that could occur if the Company's outstanding restricted stock units were vested. The dilutive effect was computed using the treasury stock method, which assumes all stock-based awards were exercised and the hypothetical proceeds from exercise were used by the Company to purchase common stock at the average market price during the period. The incremental shares, to the extent they would have been dilutive, were included in the denominator of the diluted earnings per common share calculation.
Loans and Leases Receivable, Origination Fees, Discounts or Premiums, and Direct Costs to Acquire Loans Policy [Policy Text Block]	Loans are stated at the principal amounts outstanding, net of unamortized loan fees and costs, with interest income recognized on the interest method based upon those outstanding loan balances. Loan origination fees, net of certain direct origination costs, are deferred and recognized as an adjustment of the related loan yield using the interest method. Loans are reported by the portfolio segments identified above and are analyzed by management on this basis.
Loans and Leases Receivable, Nonaccrual Loan and Lease Status, Policy [Policy Text Block]	Delinquencies are determined based on the payment terms of the individual loan agreements. The accrual of interest on past due and other impaired loans is generally discontinued at 90 days past due or when, in the opinion of management, the borrower may be unable to make all payments pursuant to contractual terms. Unless considered collectible, all interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income, if accrued in the current year, or charged to the allowance for loan losses, if accrued in the prior year. Generally, all payments received while a loan is on nonaccrual status are applied to the principal balance of the loan. Loans are returned to accrual status when all principal and interest amounts contractually due are brought current and future payments are reasonably assured.
Loans and Leases Receivable, Troubled Debt Restructuring Policy [Policy Text Block]	A loan is classified as a troubled debt restructured (TDR) loan when the Company separately concludes that a borrower is experiencing financial difficulties and a concession is granted that would not otherwise be considered. Concessions may include a restructuring of the loan terms to alleviate the burden of the borrower's cash requirements, such as an extension of the payment terms beyond the original maturity date or a change in the interest rate charged. TDR loans with extended payment terms are accounted for as impaired until performance is established. A change to the interest rate would change the classification of a loan to a TDR loan if the restructured loan yields a rate that is below a market rate for that of a new loan with comparable risk. TDR loans with below-market rates are considered impaired until fully collected. TDR loans may also be reported as nonaccrual or past due 90 days if they are not performing per the restructured terms.
Impaired Financing Receivable, Policy [Policy Text Block]	Based upon its ongoing assessment of credit quality within the loan portfolio, the Company maintains a Watch List, which includes loans classified as Doubtful, Substandard and Watch according to the Company's classification criteria. These loans involve the anticipated potential for payment defaults or collateral inadequacies. A loan on the Watch List is considered impaired when management believes it is probable the Company will be unable to collect all contractual principal and interest payments due in accordance with the terms of the loan agreement. Impaired loans are measured based on the present value of expected future cash flows discounted at the loan's effective interest rate or, as a practical expedient, at the loan's observable market price or the fair value of the collateral if the loan is collateral dependent. The amount of impairment, if any, and any subsequent changes are included in the allowance for loan losses.
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]	The allowance for loan losses is established through a provision for loan losses charged to expense. The allowance is an amount that management believes will be adequate to absorb probable losses on existing loans based on an evaluation of the collectability of loans and prior loss experience. This evaluation also takes into consideration such factors as changes in the nature and volume of the loan portfolio, overall portfolio quality, the review of specific problem loans, and the current economic conditions that may affect the borrower's ability to pay. Loans are charged-off against the allowance for loan losses when management believes that collectability of the principal is unlikely. While management uses the best information available to make its evaluations, future adjustments to the allowance may be necessary if there are significant changes in economic conditions or the other factors relied upon. The allowance for loan losses consists of specific and general components. The specific component relates to loans that meet the definition of impaired. The general component covers the remaining loans and is based on historical loss experience adjusted for qualitative factors such as delinquency trends, loan growth, economic elements and local market conditions. These same policies are applied to all segments of loans. In addition, regulatory agencies, as an integral part of their examination processes, periodically review the Company's allowance for loan losses, and may require the Company to make additions to the allowance based on their judgment about information available to them at the time of their examinations.
Fair Value Measurement, Policy [Policy Text Block]	Accounting guidance on fair value measurements and disclosures defines fair value and establishes a framework for measuring the fair value of assets and liabilities using a hierarchy system. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in the market in which the reporting entity transacts business. The Company's balance sheet contains investment securities available for sale and derivative instruments that are recorded at fair value on a recurring basis. The three-level valuation hierarchy for disclosure of fair value is as follows: Level 1 uses quoted market prices in active markets for identical assets or liabilities. Level 2 uses observable market-based inputs or unobservable inputs that are corroborated by market data. Level 3 uses unobservable inputs that are not corroborated by market data. The Company's policy is to recognize transfers between Levels at the end of each reporting period, if applicable. There were no transfers between Levels of the fair value hierarchy during the three months ended March 31, 2017 . The following is a description of valuation methodologies used for financial assets and liabilities recorded at fair value on a recurring basis. Investment securities available for sale: When available, quoted market prices are used to determine the fair value of investment securities. If quoted market prices are not available, the Company determines fair value based on various sources and may apply matrix pricing with observable prices for similar bonds where a price for the identical bond is not observable. The fair values of these securities are determined by pricing models that consider observable market data such as interest rate volatilities, LIBOR yield curve, credit spreads, prices from market makers and live trading systems. Level 1 securities include certain corporate bonds and preferred stocks, and would include U.S. Treasuries, if any were held. Level 2 securities include U.S. government and agency securities, collateralized mortgage obligations, mortgage-backed securities, state and political subdivision securities, and one trust preferred security. The Company currently holds no investment securities classified as Level 3. Generally, management obtains the fair value of investment securities at the end of each reporting period via a third-party pricing service. Management reviewed the valuation process used by the third party and believed that process was valid. On a quarterly basis, management corroborates the fair values of a randomly selected sample of investment securities by obtaining pricing from an independent investment portfolio management firm and compares the two sets of fair values. Any significant variances are reviewed and investigated. In addition, the Company has a practice of further testing the fair values by selecting a sample of investment securities from each category of securities. For that sample, the prices are further validated by management, with assistance from an independent investment portfolio management firm, by obtaining details of the inputs used by the pricing service. Those inputs were independently tested, and management concluded the fair values were consistent with GAAP requirements and the investment securities were properly classified in the fair value hierarchy as of the end of the period covered by this report. Derivative instruments: The Company's derivative instruments consist of interest rate swaps, which are accounted for as a cash flow hedge. The Company's derivative positions are classified within Level 2 of the fair value hierarchy and are valued using models generally accepted in the financial services industry and that use actively quoted or observable market input values from external market data providers and/or non-binding broker-dealer quotations. The fair value of the derivatives are determined using discounted cash flow models. These models’ key assumptions include the contractual terms of the contract along with significant observable inputs, including interest rates, yield curves, nonperformance risk and volatility.
Fair Value Transfer, Policy [Policy Text Block]	The Company's policy is to recognize transfers between Levels at the end of each reporting period, if applicable.
Fair Value of Financial Instruments, Policy [Policy Text Block]	GAAP requires disclosure of the fair value of financial assets and financial liabilities, including those that are not measured and reported at fair value on a recurring or nonrecurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or nonrecurring basis are discussed above. The methodologies for other financial assets and financial liabilities are discussed below. Cash and due from banks : The carrying amount approximates fair value. Federal funds sold : The carrying amount approximates fair value. Investment securities held to maturity : The fair values of these securities, which are all state and political subdivisions, are determined by the same method previously described for investment securities available for sale. FHLB stock : The fair value of this restricted stock is estimated at its carrying value and redemption price of $100 per share. Loans : The fair values of fixed rate loans are estimated using discounted cash flow analysis based on observable market interest rates currently being offered for loans with similar terms to borrowers with similar credit quality. The carrying values of variable rate loans approximate their fair values. Deposits : The carrying amounts for demand and savings deposits, which represent the amounts payable on demand, approximate their fair values. The fair values for time deposits are estimated using discounted cash flow analysis, based on observable market interest rates currently being offered on time deposits with similar terms. Accrued interest receivable and payable : The fair values of both accrued interest receivable and payable approximate their carrying amounts. Borrowings : The carrying amounts of federal funds purchased, short-term borrowings, variable rate FHLB advances, and variable rate long-term borrowings approximate their fair values. Fair values of subordinated notes, a fixed rate FHLB advance and other long-term borrowings are estimated using discounted cash flow analysis, based on observable market interest rates currently being offered with similar terms. Commitments to extend credit and standby letters of credit : The approximate fair values of commitments and standby letters of credit are based on the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and creditworthiness of the counterparties.
Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block]	The Company is party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. These instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the consolidated balance sheets. The Company's exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby letters of credit is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations that it uses for on-balance-sheet instruments.

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	The calculations of earnings per common share and diluted earnings per common share for the three months ended March 31, 2017 and 2016 are presented in the following table. Three Months Ended March 31, (in thousands, except per share data) 2017 2016 Net income $ 6,106 $ 5,696 Weighted average common shares outstanding 16,141 16,070 Weighted average effect of restricted stock units outstanding 151 41 Diluted weighted average common shares outstanding 16,292 16,111 Basic earnings per common share $ 0.38 $ 0.35 Diluted earnings per common share $ 0.37 $ 0.35 Number of anti-dilutive common stock equivalents excluded from diluted earnings per share computation — 152

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Unrealized Gain (Loss) on Investments [Table Text Block]	The following tables show the amortized cost, gross unrealized gains and losses, and fair value of investment securities, by investment security type as of March 31, 2017 and December 31, 2016 . March 31, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value Securities available for sale: U.S. government agencies and corporations $ 2,517 $ 48 $ — $ 2,565 State and political subdivisions 61,629 528 (200 ) 61,957 Collateralized mortgage obligations (1) 106,651 274 (995 ) 105,930 Mortgage-backed securities (1) 76,133 431 (292 ) 76,272 Trust preferred security 1,786 — (526 ) 1,260 Corporate notes 13,299 158 (15 ) 13,442 $ 262,015 $ 1,439 $ (2,028 ) $ 261,426 Securities held to maturity: State and political subdivisions $ 48,366 $ 187 $ (474 ) $ 48,079 December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value Securities available for sale: U.S. government agencies and corporations $ 2,524 $ 69 $ — $ 2,593 State and political subdivisions 64,551 376 (591 ) 64,336 Collateralized mortgage obligations (1) 103,038 255 (1,343 ) 101,950 Mortgage-backed securities (1) 80,614 341 (797 ) 80,158 Trust preferred security 1,784 — (534 ) 1,250 Corporate notes 10,326 25 (1 ) 10,350 $ 262,837 $ 1,066 $ (3,266 ) $ 260,637 Securities held to maturity: State and political subdivisions $ 48,386 $ 70 $ (667 ) $ 47,789 (1) All collateralized mortgage obligations and mortgage-backed securities consist of residential mortgage pass-through securities guaranteed by GNMA or issued by FNMA and real estate mortgage investment conduits guaranteed by FHLMC or GNMA.
Investments Classified by Contractual Maturity Date [Table Text Block]	The amortized cost and fair value of investment securities available for sale as of March 31, 2017 , by contractual maturity, are shown below. Certain securities have call features that allow the issuer to call the securities prior to maturity. Expected maturities may differ from contractual maturities for collateralized mortgage obligations and mortgage-backed securities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Therefore, collateralized mortgage obligations and mortgage-backed securities are not included in the maturity categories within the following maturity summary. March 31, 2017 Amortized Cost Fair Value Due in one year or less $ 7,976 $ 8,032 Due after one year through five years 7,296 7,398 Due after five years through ten years 34,063 34,290 Due after ten years 29,896 29,504 79,231 79,224 Collateralized mortgage obligations and mortgage-backed securities 182,784 182,202 $ 262,015 $ 261,426 The amortized cost and fair value of investment securities held to maturity as of March 31, 2017 , by contractual maturity, are shown below. Certain securities have call features that allow the issuer to call the securities prior to maturity. March 31, 2017 Amortized Cost Fair Value Due in one year or less $ — $ — Due after one year through five years 485 477 Due after five years through ten years 20,445 20,308 Due after ten years 27,436 27,294 $ 48,366 $ 48,079
Schedule of Realized Gain (Loss) [Table Text Block]	The details of the sales of investment securities available for sale for the three months ended March 31, 2017 and 2016 are summarized in the following table. Three Months Ended March 31, 2017 2016 Proceeds from sales $ 8,999 $ — Gross gains on sales 39 — Gross losses on sales 42 —
Schedule of Unrealized Loss on Investments [Table Text Block]	The following tables show the fair value and gross unrealized losses, aggregated by investment type and length of time that individual securities have been in a continuous loss position, as of March 31, 2017 and December 31, 2016 . March 31, 2017 Less than 12 months 12 months or longer Total Fair Value Gross Unrealized (Losses) Fair Value Gross Unrealized (Losses) Fair Value Gross Unrealized (Losses) Securities available for sale: U.S. government agencies and corporations $ — $ — $ — $ — $ — $ — State and political subdivisions 23,378 (200 ) — — 23,378 (200 ) Collateralized mortgage obligations 78,029 (926 ) 2,400 (69 ) 80,429 (995 ) Mortgage-backed securities 51,814 (292 ) — — 51,814 (292 ) Trust preferred security — — 1,260 (526 ) 1,260 (526 ) Corporate notes 1,485 (15 ) — — 1,485 (15 ) $ 154,706 $ (1,433 ) $ 3,660 $ (595 ) $ 158,366 $ (2,028 ) Securities held to maturity: State and political subdivisions $ 22,392 $ (239 ) $ 4,208 $ (235 ) $ 26,600 $ (474 ) December 31, 2016 Less than 12 months 12 months or longer Total Fair Value Gross Unrealized (Losses) Fair Value Gross Unrealized (Losses) Fair Value Gross Unrealized (Losses) Securities available for sale: U.S. government agencies and corporations $ — $ — $ — $ — $ — $ — State and political subdivisions 34,903 (591 ) — — 34,903 (591 ) Collateralized mortgage obligations 75,771 (1,255 ) 2,538 (88 ) 78,309 (1,343 ) Mortgage-backed securities 60,221 (797 ) — — 60,221 (797 ) Trust preferred security — — 1,250 (534 ) 1,250 (534 ) Corporate notes 1,499 (1 ) — — 1,499 (1 ) $ 172,394 $ (2,644 ) $ 3,788 $ (622 ) $ 176,182 $ (3,266 ) Securities held to maturity: State and political subdivisions $ 32,976 $ (458 ) $ 3,968 $ (209 ) $ 36,944 $ (667 )

Loans and Allowance for Loan 21

Loans and Allowance for Loan Losses (Tables)	3 Months Ended
	Mar. 31, 2017
Loans and Allowance for Loan Losses [Abstract]
Schedule of Loans [Table Text Block]	Loans consisted of the following segments as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 Commercial $ 332,771 $ 334,014 Real estate: Construction, land and land development 234,010 205,610 1-4 family residential first mortgages 48,158 47,184 Home equity 17,909 18,057 Commercial 807,319 788,000 Consumer and other loans 7,964 8,355 1,448,131 1,401,220 Net unamortized fees and costs (1,396 ) (1,350 ) $ 1,446,735 $ 1,399,870
Impaired Loans [Table Text Block]	The following table summarizes the recorded investment in impaired loans by segment, broken down by loans with no related allowance for loan losses and loans with a related allowance and the amount of that allowance as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 Recorded Investment Unpaid Principal Balance Related Allowance Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Commercial $ — $ — $ — $ 35 $ 35 $ — Real estate: Construction, land and land development — — — — — — 1-4 family residential first mortgages 104 104 — 108 108 — Home equity 29 29 — 41 41 — Commercial 304 304 — 335 335 — Consumer and other loans — — — — — — 437 437 — 519 519 — With an allowance recorded: Commercial 87 87 87 91 91 91 Real estate: Construction, land and land development — — — — — — 1-4 family residential first mortgages — — — — — — Home equity 264 264 264 276 276 276 Commercial 132 132 132 136 136 136 Consumer and other loans — — — — — — 483 483 483 503 503 503 Total: Commercial 87 87 87 126 126 91 Real estate: Construction, land and land development — — — — — — 1-4 family residential first mortgages 104 104 — 108 108 — Home equity 293 293 264 317 317 276 Commercial 436 436 132 471 471 136 Consumer and other loans — — — — — — $ 920 $ 920 $ 483 $ 1,022 $ 1,022 $ 503
Schedule of Impaired Loans With and Without an Allowance [Table Text Block]	The following table summarizes the average recorded investment and interest income recognized on impaired loans by segment for the three months ended March 31, 2017 and 2016 . Three Months Ended March 31, 2017 2016 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized With no related allowance recorded: Commercial $ 26 $ — $ — $ — Real estate: Construction, land and land development — — 28 — 1-4 family residential first mortgages 107 — 347 1 Home equity 38 — — — Commercial 319 — 440 — Consumer and other loans — — — — 490 — 815 1 With an allowance recorded: Commercial 89 — 140 — Real estate: Construction, land and land development — — — — 1-4 family residential first mortgages — — — — Home equity 272 — 267 — Commercial 134 — 152 — Consumer and other loans — — — — 495 — 559 — Total: Commercial 115 — 140 — Real estate: Construction, land and land development — — 28 — 1-4 family residential first mortgages 107 — 347 1 Home equity 310 — 267 — Commercial 453 — 592 — Consumer and other loans — — — — $ 985 $ — $ 1,374 $ 1
Past Due Loans [Table Text Block]	The following tables provide an analysis of the payment status of the recorded investment in loans as of March 31, 2017 and December 31, 2016 . March 31, 2017 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Total Past Due Current Nonaccrual Loans Total Loans Commercial $ 44 $ — $ — $ 44 $ 332,640 $ 87 $ 332,771 Real estate: Construction, land and land development — — — — 234,010 — 234,010 1-4 family residential first mortgages — — — — 48,054 104 48,158 Home equity — — — — 17,616 293 17,909 Commercial — — — — 806,883 436 807,319 Consumer and other — — — — 7,964 — 7,964 Total $ 44 $ — $ — $ 44 $ 1,447,167 $ 920 $ 1,448,131 December 31, 2016 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Total Past Due Current Nonaccrual Loans Total Loans Commercial $ 109 $ — $ — $ 109 $ 333,779 $ 126 $ 334,014 Real estate: Construction, land and land development — — — — 205,610 — 205,610 1-4 family residential first mortgages 64 — — 64 47,012 108 47,184 Home equity — — — — 17,740 317 18,057 Commercial — — — — 787,529 471 788,000 Consumer and other — — — — 8,355 — 8,355 Total $ 173 $ — $ — $ 173 $ 1,400,025 $ 1,022 $ 1,401,220
Loan Credit Quality Indicators [Table Text Block]	The following tables present the recorded investment in loans by credit quality indicator and loan segment as of March 31, 2017 and December 31, 2016 . March 31, 2017 Pass Watch Substandard Doubtful Total Commercial $ 328,736 $ 2,763 $ 1,272 $ — $ 332,771 Real estate: Construction, land and land development 232,972 — 1,038 — 234,010 1-4 family residential first mortgages 47,203 851 104 — 48,158 Home equity 17,462 60 387 — 17,909 Commercial 787,868 18,717 734 — 807,319 Consumer and other 7,919 45 — — 7,964 Total $ 1,422,160 $ 22,436 $ 3,535 $ — $ 1,448,131 December 31, 2016 Pass Watch Substandard Doubtful Total Commercial $ 329,366 $ 3,303 $ 1,345 $ — $ 334,014 Real estate: Construction, land and land development 204,572 — 1,038 — 205,610 1-4 family residential first mortgages 46,278 798 108 — 47,184 Home equity 17,646 — 411 — 18,057 Commercial 769,010 18,392 598 — 788,000 Consumer and other 8,355 — — — 8,355 Total $ 1,375,227 $ 22,493 $ 3,500 $ — $ 1,401,220
Allowance for Loan Losses [Table Text Block]	The following tables detail the changes in the allowance for loan losses by segment for the three months ended March 31, 2017 and 2016 . Three Months Ended March 31, 2017 Real Estate Commercial Construction and Land 1-4 Family Residential Home Equity Commercial Consumer and Other Total Beginning balance $ 3,881 $ 2,639 $ 317 $ 478 $ 8,697 $ 100 $ 16,112 Charge-offs (60 ) — — — — — (60 ) Recoveries 59 303 1 8 3 1 375 Provision (1) (80 ) (28 ) (3 ) (39 ) 148 2 — Ending balance $ 3,800 $ 2,914 $ 315 $ 447 $ 8,848 $ 103 $ 16,427 Three Months Ended March 31, 2016 Real Estate Commercial Construction and Land 1-4 Family Residential Home Equity Commercial Consumer and Other Total Beginning balance $ 4,369 $ 2,338 $ 508 $ 481 $ 7,254 $ 17 $ 14,967 Charge-offs — — — — — — — Recoveries 42 44 11 7 3 6 113 Provision (1) (268 ) 280 (123 ) 31 227 53 200 Ending balance $ 4,143 $ 2,662 $ 396 $ 519 $ 7,484 $ 76 $ 15,280 (1) The negative provisions for the various segments are either related to the decline in outstanding balances in each of those portfolio segments during the time periods disclosed and/or improvement in the credit quality factors related to those portfolio segments.
Allowance for Loan Losses by Impairment Method [Table Text Block]	The following tables present a breakdown of the allowance for loan losses disaggregated on the basis of impairment analysis method by segment as of March 31, 2017 and December 31, 2016 . March 31, 2017 Real Estate Commercial Construction and Land 1-4 Family Residential Home Equity Commercial Consumer and Other Total Ending balance: Individually evaluated for impairment $ 87 $ — $ — $ 264 $ 132 $ — $ 483 Collectively evaluated for impairment 3,713 2,914 315 183 8,716 103 15,944 Total $ 3,800 $ 2,914 $ 315 $ 447 $ 8,848 $ 103 $ 16,427 December 31, 2016 Real Estate Commercial Construction and Land 1-4 Family Residential Home Equity Commercial Consumer and Other Total Ending balance: Individually evaluated for impairment $ 91 $ — $ — $ 276 $ 136 $ — $ 503 Collectively evaluated for impairment 3,790 2,639 317 202 8,561 100 15,609 Total $ 3,881 $ 2,639 $ 317 $ 478 $ 8,697 $ 100 $ 16,112
Loans by Impairment Method [Table Text Block]	The following tables present the recorded investment in loans, exclusive of unamortized fees and costs, disaggregated on the basis of impairment analysis method by segment as of March 31, 2017 and December 31, 2016 . March 31, 2017 Real Estate Commercial Construction and Land 1-4 Family Residential Home Equity Commercial Consumer and Other Total Ending balance: Individually evaluated for impairment $ 87 $ — $ 104 $ 293 $ 436 $ — $ 920 Collectively evaluated for impairment 332,684 234,010 48,054 17,616 806,883 7,964 1,447,211 Total $ 332,771 $ 234,010 $ 48,158 $ 17,909 $ 807,319 $ 7,964 $ 1,448,131 December 31, 2016 Real Estate Commercial Construction and Land 1-4 Family Residential Home Equity Commercial Consumer and Other Total Ending balance: Individually evaluated for impairment $ 126 $ — $ 108 $ 317 $ 471 $ — $ 1,022 Collectively evaluated for impairment 333,888 205,610 47,076 17,740 787,529 8,355 1,400,198 Total $ 334,014 $ 205,610 $ 47,184 $ 18,057 $ 788,000 $ 8,355 $ 1,401,220

Derivatives (Tables)

Derivatives (Tables)	3 Months Ended
	Mar. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	The table below identifies the balance sheet category and fair values of the Company's derivative instruments designated as cash flow hedges as of March 31, 2017 and December 31, 2016 . Interest Rate Swap Notional Amount Fair Value Balance Sheet Category Weighted Average Receive Rate Weighted Average Pay Rate Maturity March 31, 2017 Interest rate swap $ 30,000 $ (384 ) Other Liabilities 1.46 % 2.52 % 9/21/2020 Interest rate swap (1) 20,000 1,055 Other Assets — 4.81 % 9/30/2026 December 31, 2016 Interest rate swap 30,000 (496 ) Other Liabilities 1.30 % 2.52 % 9/21/2020 Interest rate swap (1) 20,000 1,068 Other Assets — 4.81 % 9/30/2026
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]	The following table identifies the pre-tax gains (losses) recognized on the Company's derivative instruments designated as cash flow hedges for the three months ended March 31, 2017 and 2016 . Effective Portion Ineffective Portion Amount of Reclassified from AOCI into Income Recognized in Income on Derivatives Pre-tax Gain (Loss) Recognized Amount of Amount of Interest Rate Swap in OCI Category Gain (Loss) Category Gain (Loss) March 31, 2017 $ 9 Interest Expense $ (117 ) Other Income $ — March 31, 2016 (830 ) Interest Expense (151 ) Other Income —

Deferred Income Taxes (Tables)

Deferred Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2017
Components of Deferred Tax Assets and Liabilities [Abstract]
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	Net deferred tax assets consisted of the following as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 Deferred tax assets: Allowance for loan losses $ 6,242 $ 6,123 Net unrealized losses on securities available for sale 110 719 Intangibles 385 462 Accrued expenses 464 706 Restricted stock compensation 215 446 State net operating loss carryforward 1,299 1,271 Other 186 190 8,901 9,917 Deferred tax liabilities: Net deferred loan fees and costs 311 321 Net unrealized gains on interest rate swaps 128 80 Premises and equipment 1,068 1,027 Other 245 261 1,752 1,689 Net deferred tax assets before valuation allowance 7,149 8,228 Valuation allowance (1,299 ) (1,271 ) Net deferred tax assets $ 5,850 $ 6,957

Comprehensive Income (Tables)

Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2017
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The following table summarizes the changes in the balances of each component of accumulated other comprehensive income (loss), net of tax, for the three months ended March 31, 2017 and 2016 . Unrealized Unrealized Accumulated Gains Gains Other (Losses) on (Losses) on Comprehensive Securities Derivatives Income (Loss) Balance, December 31, 2015 $ 342 $ (772 ) $ (430 ) Other comprehensive income (loss) before reclassifications 1,665 (515 ) 1,150 Amounts reclassified from accumulated other comprehensive income (15 ) 94 79 Net current period other comprehensive income (loss) 1,650 (421 ) 1,229 Balance, March 31, 2016 $ 1,992 $ (1,193 ) $ 799 Balance, December 31, 2016 $ (1,172 ) $ 130 $ (1,042 ) Other comprehensive income before reclassifications 996 6 1,002 Amounts reclassified from accumulated other comprehensive income (2 ) 72 70 Net current period other comprehensive income 994 78 1,072 Balance, March 31, 2017 $ (178 ) $ 208 $ 30

Commitments and Contingencies25

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Summary Of Outstanding Commitments To Extend Credit And Letters Of Credit [Table Text Block]	The Company's commitments consisted of the following approximate amounts as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 Commitments to extend credit $ 658,652 $ 614,681 Standby letters of credit 5,811 5,487 $ 664,463 $ 620,168

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	The following tables present the balances of financial assets and liabilities measured at fair value on a recurring basis by level as of March 31, 2017 and December 31, 2016 . March 31, 2017 Total Level 1 Level 2 Level 3 Financial assets: Investment securities available for sale: U.S. government agencies and corporations $ 2,565 $ — $ 2,565 $ — State and political subdivisions 61,957 — 61,957 — Collateralized mortgage obligations 105,930 — 105,930 — Mortgage-backed securities 76,272 — 76,272 — Trust preferred security 1,260 — 1,260 — Corporate notes 13,442 13,142 300 — Derivative instrument, interest rate swap 1,055 — 1,055 — Financial liabilities: Derivative instrument, interest rate swap $ 384 $ — $ 384 $ — December 31, 2016 Total Level 1 Level 2 Level 3 Financial assets: Investment securities available for sale: U.S. government agencies and corporations $ 2,593 $ — $ 2,593 $ — State and political subdivisions 64,336 — 64,336 — Collateralized mortgage obligations 101,950 — 101,950 — Mortgage-backed securities 80,158 — 80,158 — Trust preferred security 1,250 — 1,250 — Corporate notes 10,350 10,050 300 — Derivative instrument, interest rate swap 1,068 — 1,068 — Financial liabilities: Derivative instrument, interest rate swap $ 496 $ — $ 496 $ —
Carrying Amounts And Approximate Fair Values Of Financial Instruments [Table Text Block]	The following table presents the carrying amounts and approximate fair values of financial assets and liabilities as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 Fair Value Hierarchy Level Carrying Amount Approximate Fair Value Carrying Amount Approximate Fair Value Financial assets: Cash and due from banks Level 1 $ 34,994 $ 34,994 $ 40,943 $ 40,943 Federal funds sold Level 1 7,536 7,536 35,893 35,893 Investment securities available for sale See previous table 261,426 261,426 260,637 260,637 Investment securities held to maturity Level 2 48,386 48,079 48,386 47,789 Federal Home Loan Bank stock Level 1 12,110 12,110 10,771 10,771 Loans, net (1) Level 2 1,430,308 1,421,808 1,383,758 1,382,569 Accrued interest receivable Level 1 5,585 5,585 5,321 5,321 Interest rate swap See previous table 1,055 1,055 1,068 1,068 Financial liabilities: Deposits Level 2 $ 1,528,754 $ 1,528,615 $ 1,546,605 $ 1,546,307 Federal funds purchased Level 1 1,425 1,425 9,690 9,690 Short-term borrowings Level 1 36,000 36,000 — — Subordinated notes, net Level 2 20,402 12,883 20,398 12,703 Federal Home Loan Bank advances, net Level 2 100,254 100,293 99,886 99,959 Long-term debt, net Level 2 4,300 4,229 5,126 5,054 Accrued interest payable Level 1 321 321 280 280 Interest rate swap See previous table 384 384 496 496 Off-balance-sheet financial instruments: Commitments to extend credit Level 3 — — — — Standby letters of credit Level 3 — — — —

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
Net income	$ 6,106	$ 5,696
Weighted average common shares outstanding (shares)	16,141	16,070
Weighted average effect of restricted stock units outstanding (shares)	151	41
Diluted weighted average common shares outstanding (shares)	16,292	16,111
Basic earnings per common share	$ 0.38	$ 0.35
Diluted earnings per common share	$ 0.37	$ 0.35
Antidilutive restricted stock units excluded from computation of earnings per share, Amount	0	152

Investment Securities Security

Investment Securities Security Type - Available for Sale (Details) - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Investment securities available for sale, amortized cost		$ 262,015	$ 262,837
Investment securities available for sale, gross unrealized gains		1,439	1,066
Investment securities available for sale, gross unrealized (losses)		(2,028)	(3,266)
Investment securities available for sale, at fair value		261,426	260,637
US government agencies and corporations [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available for sale, amortized cost		2,517	2,524
Investment securities available for sale, gross unrealized gains		48	69
Investment securities available for sale, gross unrealized (losses)		0	0
Investment securities available for sale, at fair value		2,565	2,593
State and political subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available for sale, amortized cost		61,629	64,551
Investment securities available for sale, gross unrealized gains		528	376
Investment securities available for sale, gross unrealized (losses)		(200)	(591)
Investment securities available for sale, at fair value		61,957	64,336
Collateralized mortgage obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available for sale, amortized cost	[1]	106,651	103,038
Investment securities available for sale, gross unrealized gains	[1]	274	255
Investment securities available for sale, gross unrealized (losses)	[1]	(995)	(1,343)
Investment securities available for sale, at fair value	[1]	105,930	101,950
Mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available for sale, amortized cost	[1]	76,133	80,614
Investment securities available for sale, gross unrealized gains	[1]	431	341
Investment securities available for sale, gross unrealized (losses)	[1]	(292)	(797)
Investment securities available for sale, at fair value	[1]	76,272	80,158
Trust preferred security [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available for sale, amortized cost		1,786	1,784
Investment securities available for sale, gross unrealized gains		0	0
Investment securities available for sale, gross unrealized (losses)		(526)	(534)
Investment securities available for sale, at fair value		1,260	1,250
Corporate notes [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available for sale, amortized cost		13,299	10,326
Investment securities available for sale, gross unrealized gains		158	25
Investment securities available for sale, gross unrealized (losses)		(15)	(1)
Investment securities available for sale, at fair value		$ 13,442	$ 10,350
[1]	All collateralized mortgage obligations and mortgage-backed securities consist of residential mortgage pass-through securities guaranteed by GNMA or issued by FNMA and real estate mortgage investment conduits guaranteed by FHLMC or GNMA.

Investment Securities Securit29

Investment Securities Security Type - Held to Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Held-to-maturity Securities [Line Items]
Investment securities held to maturity	$ 48,366	$ 48,386
Investment securities held to maturity, fair value	48,079	47,789
State and political subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Investment securities held to maturity	48,366	48,386
Investment securities held to maturity, gross unrealized gains	187	70
Investment securities held to maturity, gross unrealized (losses)	(474)	(667)
Investment securities held to maturity, fair value	$ 48,079	$ 47,789

Investment Securities Contractu

Investment Securities Contractual Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis [Abstract]
Due in one year or less, amortized cost	$ 7,976
Due after one year through five years, amortized cost	7,296
Due after five years through ten years, amortized cost	34,063
Due after ten years, amortized cost	29,896
Subtotal before securities without single maturities, amortized cost	79,231
Collateralized mortgage obligations and mortgage-backed securities, amortized cost	182,784
Investment securities available for sale, amortized cost	262,015	$ 262,837
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Due in one year or less, fair value	8,032
Due after one year through five years, fair value	7,398
Due after five years through ten years, fair value	34,290
Due after ten years, fair value	29,504
Subtotal before securities without single maturities, fair value	79,224
Collateralized mortgage obligations and mortgage-backed securities, fair value	182,202
Investment securities available for sale, fair value	261,426	260,637
Held-to-maturity Securities, Debt Maturities, Amortized Cost Basis [Abstract]
Due in one year or less, amortized cost	0
Due after one year through five years, amortized cost	485
Due after five years through ten years, amortized cost	20,445
Due after ten years, amortized cost	27,436
Investment securities held to maturity, amortized cost	48,366	48,386
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]
Due in one year or less, fair value	0
Due after one year through five years, fair value	477
Due after five years through ten years, fair value	20,308
Due after ten years, fair value	27,294
Held-to-maturity securities, fair value	$ 48,079	$ 47,789

Investment Securities Detail of

Investment Securities Detail of Sale of Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Investment Securities [Abstract]
Proceeds from sales	$ 8,999	$ 0
Gross gains on sales	39	0
Gross losses on sales	$ 42	$ 0

Investment Securities Gross Unr

Investment Securities Gross Unrealized Losses - AFS (Details) $ in Thousands	Mar. 31, 2017USD ($)securities	Dec. 31, 2016USD ($)
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	$ 154,706	$ 172,394
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized (losses)	(1,433)	(2,644)
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	3,660	3,788
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, gross unrealized (losses)	(595)	(622)
Available-for-sale securities, total, continuous unrealized loss position, fair value	158,366	176,182
Available-for-sale securities, continuous unrealized loss position, gross unrealized (losses)	(2,028)	(3,266)
US government agencies and corporations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized (losses)	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, gross unrealized (losses)	0	0
Available-for-sale securities, total, continuous unrealized loss position, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, gross unrealized (losses)	0	0
State and political subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	23,378	34,903
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized (losses)	(200)	(591)
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, gross unrealized (losses)	0	0
Available-for-sale securities, total, continuous unrealized loss position, fair value	23,378	34,903
Available-for-sale securities, continuous unrealized loss position, gross unrealized (losses)	$ (200)	(591)
Collateralized mortgage obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sales securities in unrealized loss positions, qualitative disclosure, number of positions, greater than or equal to one year | securities	1
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	$ 78,029	75,771
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized (losses)	(926)	(1,255)
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	2,400	2,538
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, gross unrealized (losses)	(69)	(88)
Available-for-sale securities, total, continuous unrealized loss position, fair value	80,429	78,309
Available-for-sale securities, continuous unrealized loss position, gross unrealized (losses)	(995)	(1,343)
Mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	51,814	60,221
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized (losses)	(292)	(797)
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, gross unrealized (losses)	0	0
Available-for-sale securities, total, continuous unrealized loss position, fair value	51,814	60,221
Available-for-sale securities, continuous unrealized loss position, gross unrealized (losses)	$ (292)	(797)
Trust preferred security [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sales securities in unrealized loss positions, qualitative disclosure, number of positions, greater than or equal to one year | securities	1
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	$ 0	0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized (losses)	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	1,260	1,250
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, gross unrealized (losses)	(526)	(534)
Available-for-sale securities, total, continuous unrealized loss position, fair value	1,260	1,250
Available-for-sale securities, continuous unrealized loss position, gross unrealized (losses)	(526)	(534)
Corporate notes [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	1,485	1,499
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized (losses)	(15)	(1)
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, gross unrealized (losses)	0	0
Available-for-sale securities, total, continuous unrealized loss position, fair value	1,485	1,499
Available-for-sale securities, continuous unrealized loss position, gross unrealized (losses)	$ (15)	$ (1)

Investment Securities Gross U33

Investment Securities Gross Unrealized Losses - HTM (Details) - State and political subdivisions [Member] $ in Thousands	Mar. 31, 2017USD ($)securities	Dec. 31, 2016USD ($)
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities in unrealized loss positions, qualitative disclosure, number of positions | securities	12
Held-to-maturity securities, continuous unrealized loss position, less than 12 months, fair value	$ 22,392	$ 32,976
Held-to-maturity securities, continuous unrealized loss position, less than 12 months, gross unrealized (losses)	(239)	(458)
Held-to-maturity securities, continuous unrealized loss position, 12 months or longer, fair value	4,208	3,968
Held-to-maturity securities, continuous unrealized loss position, 12 months or longer, gross unrealized (losses)	(235)	(209)
Held-to-maturity securities, continuous unrealized loss position, fair value	26,600	36,944
Held-to-maturity securities, continuous unrealized loss position, gross unrealized (losses)	$ (474)	$ (667)

Investment Securities Other Nar

Investment Securities Other Narratives - AFS securities (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Securities pledged as collateral at amortized cost	$ 130,847	$ 141,995

Loans and Allowance for Loan 35

Loans and Allowance for Loan Losses Schedule of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Loans Receivable [Line Items]
Loans receivable, gross	$ 1,448,131	$ 1,401,220
Net unamortized fees and costs	(1,396)	(1,350)
Loans, net of unamortized fees and costs	1,446,735	1,399,870
Commercial loans [Member]
Loans Receivable [Line Items]
Loans receivable, gross	332,771	334,014
Construction, land and land development [Member]
Loans Receivable [Line Items]
Loans receivable, gross	234,010	205,610
1-4 family residential first mortgages [Member]
Loans Receivable [Line Items]
Loans receivable, gross	48,158	47,184
Home equity [Member]
Loans Receivable [Line Items]
Loans receivable, gross	17,909	18,057
Commercial real estate [Member]
Loans Receivable [Line Items]
Loans receivable, gross	807,319	788,000
Consumer and other loans [Member]
Loans Receivable [Line Items]
Loans receivable, gross	$ 7,964	$ 8,355

Loans and Allowance for Loan 36

Loans and Allowance for Loan Losses Schedule of Troubled Debt Restructured Loans (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2017USD ($)loans	Mar. 31, 2016loans	Mar. 31, 2017USD ($)	Mar. 31, 2016USD ($)	Dec. 31, 2016USD ($)
Loans and Allowance for Loan Losses [Abstract]
Loans, modifications	$ 391,000		$ 391,000		$ 426,000
Financing Receivable, Modifications, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			0	$ 0
Troubled Debt Restructured Loans Included in Nonaccrual	$ 391,000		$ 391,000		$ 426,000

Loans and Allowance for Loan 37

Loans and Allowance for Loan Losses Schedule of Impaired Loans With and Without an Allowance (Details) $ in Thousands	Mar. 31, 2017USD ($)Borrowers	Dec. 31, 2016USD ($)Borrowers
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, recorded investment	$ 437	$ 519
Impaired loans, with no related allowance, unpaid principal balance	437	519
Impaired loans, with related allowance, recorded investment	483	503
Impaired loans, with related allowance, unpaid principal balance	483	503
Impaired loans, recorded investment	920	1,022
Impaired loans, unpaid principal balance	920	1,022
Impaired loans, related allowance	$ 483	$ 503
Number of borrowers, impaired loans | Borrowers	8	10
Impaired loans, commitment to lend	$ 0
Commercial loans [Member]
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, recorded investment	0	$ 35
Impaired loans, with no related allowance, unpaid principal balance	0	35
Impaired loans, with related allowance, recorded investment	87	91
Impaired loans, with related allowance, unpaid principal balance	87	91
Impaired loans, recorded investment	87	126
Impaired loans, unpaid principal balance	87	126
Impaired loans, related allowance	87	91
Construction, land and land development [Member]
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, recorded investment	0	0
Impaired loans, with no related allowance, unpaid principal balance	0	0
Impaired loans, with related allowance, recorded investment	0	0
Impaired loans, with related allowance, unpaid principal balance	0	0
Impaired loans, recorded investment	0	0
Impaired loans, unpaid principal balance	0	0
Impaired loans, related allowance	0	0
1-4 family residential first mortgages [Member]
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, recorded investment	104	108
Impaired loans, with no related allowance, unpaid principal balance	104	108
Impaired loans, with related allowance, recorded investment	0	0
Impaired loans, with related allowance, unpaid principal balance	0	0
Impaired loans, recorded investment	104	108
Impaired loans, unpaid principal balance	104	108
Impaired loans, related allowance	0	0
Home equity [Member]
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, recorded investment	29	41
Impaired loans, with no related allowance, unpaid principal balance	29	41
Impaired loans, with related allowance, recorded investment	264	276
Impaired loans, with related allowance, unpaid principal balance	264	276
Impaired loans, recorded investment	293	317
Impaired loans, unpaid principal balance	293	317
Impaired loans, related allowance	264	276
Commercial real estate [Member]
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, recorded investment	304	335
Impaired loans, with no related allowance, unpaid principal balance	304	335
Impaired loans, with related allowance, recorded investment	132	136
Impaired loans, with related allowance, unpaid principal balance	132	136
Impaired loans, recorded investment	436	471
Impaired loans, unpaid principal balance	436	471
Impaired loans, related allowance	132	136
Consumer and other loans [Member]
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, recorded investment	0	0
Impaired loans, with no related allowance, unpaid principal balance	0	0
Impaired loans, with related allowance, recorded investment	0	0
Impaired loans, with related allowance, unpaid principal balance	0	0
Impaired loans, recorded investment	0	0
Impaired loans, unpaid principal balance	0	0
Impaired loans, related allowance	$ 0	$ 0

Loans and Allowance for Loan 38

Loans and Allowance for Loan Losses Schedule of Impaired Loans With and Without an Allowance 2 (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, average recorded investment	$ 490	$ 815
Impaired loans, with no related allowance, interest income, accrual method	0	1
Impaired loans, with related allowance, average recorded investment	495	559
Impaired loans, with related allowance, interest income, accrual method	0	0
Impaired loans, average recorded investment	985	1,374
Impaired loans, interest income, accrual method	0	1
Commercial loans [Member]
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, average recorded investment	26	0
Impaired loans, with no related allowance, interest income, accrual method	0	0
Impaired loans, with related allowance, average recorded investment	89	140
Impaired loans, with related allowance, interest income, accrual method	0	0
Impaired loans, average recorded investment	115	140
Impaired loans, interest income, accrual method	0	0
Construction, land and land development [Member]
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, average recorded investment	0	28
Impaired loans, with no related allowance, interest income, accrual method	0	0
Impaired loans, with related allowance, average recorded investment	0	0
Impaired loans, with related allowance, interest income, accrual method	0	0
Impaired loans, average recorded investment	0	28
Impaired loans, interest income, accrual method	0	0
1-4 family residential first mortgages [Member]
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, average recorded investment	107	347
Impaired loans, with no related allowance, interest income, accrual method	0	1
Impaired loans, with related allowance, average recorded investment	0	0
Impaired loans, with related allowance, interest income, accrual method	0	0
Impaired loans, average recorded investment	107	347
Impaired loans, interest income, accrual method	0	1
Home equity [Member]
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, average recorded investment	38	0
Impaired loans, with no related allowance, interest income, accrual method	0	0
Impaired loans, with related allowance, average recorded investment	272	267
Impaired loans, with related allowance, interest income, accrual method	0	0
Impaired loans, average recorded investment	310	267
Impaired loans, interest income, accrual method	0	0
Commercial real estate [Member]
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, average recorded investment	319	440
Impaired loans, with no related allowance, interest income, accrual method	0	0
Impaired loans, with related allowance, average recorded investment	134	152
Impaired loans, with related allowance, interest income, accrual method	0	0
Impaired loans, average recorded investment	453	592
Impaired loans, interest income, accrual method	0	0
Consumer and other loans [Member]
Loans, Impaired [Line Items]
Impaired loans, with no related allowance, average recorded investment	0	0
Impaired loans, with no related allowance, interest income, accrual method	0	0
Impaired loans, with related allowance, average recorded investment	0	0
Impaired loans, with related allowance, interest income, accrual method	0	0
Impaired loans, average recorded investment	0	0
Impaired loans, interest income, accrual method	$ 0	$ 0

Loans and Allowance for Loan 39

Loans and Allowance for Loan Losses Schedule of Past Due Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	$ 44	$ 173
Loans, recorded investment, current	1,447,167	1,400,025
Loans, recorded investment, nonaccrual status	920	1,022
Loans	1,448,131	1,401,220
Commercial loans [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	44	109
Loans, recorded investment, current	332,640	333,779
Loans, recorded investment, nonaccrual status	87	126
Loans	332,771	334,014
Construction, land and land development [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, recorded investment, current	234,010	205,610
Loans, recorded investment, nonaccrual status	0	0
Loans	234,010	205,610
1-4 family residential first mortgages [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	64
Loans, recorded investment, current	48,054	47,012
Loans, recorded investment, nonaccrual status	104	108
Loans	48,158	47,184
Home equity [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, recorded investment, current	17,616	17,740
Loans, recorded investment, nonaccrual status	293	317
Loans	17,909	18,057
Commercial real estate [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, recorded investment, current	806,883	787,529
Loans, recorded investment, nonaccrual status	436	471
Loans	807,319	788,000
Consumer and other loans [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, recorded investment, current	7,964	8,355
Loans, recorded investment, nonaccrual status	0	0
Loans	7,964	8,355
Financing Receivables, 30 to 59 Days Past Due [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	44	173
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial loans [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	44	109
Financing Receivables, 30 to 59 Days Past Due [Member] | Construction, land and land development [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | 1-4 family residential first mortgages [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	64
Financing Receivables, 30 to 59 Days Past Due [Member] | Home equity [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial real estate [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer and other loans [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial loans [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Construction, land and land development [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | 1-4 family residential first mortgages [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Home equity [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial real estate [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer and other loans [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial loans [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Construction, land and land development [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | 1-4 family residential first mortgages [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Home equity [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial real estate [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer and other loans [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	$ 0	$ 0

Loans and Allowance for Loan 40

Loans and Allowance for Loan Losses Schedule of Loans By Credit Quality Indicator (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Loans, Recorded Investment [Line Items]
Loans	$ 1,448,131	$ 1,401,220
Pass [Member]
Loans, Recorded Investment [Line Items]
Loans	1,422,160	1,375,227
Watch [Member]
Loans, Recorded Investment [Line Items]
Loans	22,436	22,493
Substandard [Member]
Loans, Recorded Investment [Line Items]
Loans	3,535	3,500
Doubtful [Member]
Loans, Recorded Investment [Line Items]
Loans	0	0
Commercial loans [Member]
Loans, Recorded Investment [Line Items]
Loans	332,771	334,014
Commercial loans [Member] | Pass [Member]
Loans, Recorded Investment [Line Items]
Loans	328,736	329,366
Commercial loans [Member] | Watch [Member]
Loans, Recorded Investment [Line Items]
Loans	2,763	3,303
Commercial loans [Member] | Substandard [Member]
Loans, Recorded Investment [Line Items]
Loans	1,272	1,345
Commercial loans [Member] | Doubtful [Member]
Loans, Recorded Investment [Line Items]
Loans	0	0
Construction, land and land development [Member]
Loans, Recorded Investment [Line Items]
Loans	234,010	205,610
Construction, land and land development [Member] | Pass [Member]
Loans, Recorded Investment [Line Items]
Loans	232,972	204,572
Construction, land and land development [Member] | Watch [Member]
Loans, Recorded Investment [Line Items]
Loans	0	0
Construction, land and land development [Member] | Substandard [Member]
Loans, Recorded Investment [Line Items]
Loans	1,038	1,038
Construction, land and land development [Member] | Doubtful [Member]
Loans, Recorded Investment [Line Items]
Loans	0	0
1-4 family residential first mortgages [Member]
Loans, Recorded Investment [Line Items]
Loans	48,158	47,184
1-4 family residential first mortgages [Member] | Pass [Member]
Loans, Recorded Investment [Line Items]
Loans	47,203	46,278
1-4 family residential first mortgages [Member] | Watch [Member]
Loans, Recorded Investment [Line Items]
Loans	851	798
1-4 family residential first mortgages [Member] | Substandard [Member]
Loans, Recorded Investment [Line Items]
Loans	104	108
1-4 family residential first mortgages [Member] | Doubtful [Member]
Loans, Recorded Investment [Line Items]
Loans	0	0
Home equity [Member]
Loans, Recorded Investment [Line Items]
Loans	17,909	18,057
Home equity [Member] | Pass [Member]
Loans, Recorded Investment [Line Items]
Loans	17,462	17,646
Home equity [Member] | Watch [Member]
Loans, Recorded Investment [Line Items]
Loans	60	0
Home equity [Member] | Substandard [Member]
Loans, Recorded Investment [Line Items]
Loans	387	411
Home equity [Member] | Doubtful [Member]
Loans, Recorded Investment [Line Items]
Loans	0	0
Commercial real estate [Member]
Loans, Recorded Investment [Line Items]
Loans	807,319	788,000
Commercial real estate [Member] | Pass [Member]
Loans, Recorded Investment [Line Items]
Loans	787,868	769,010
Commercial real estate [Member] | Watch [Member]
Loans, Recorded Investment [Line Items]
Loans	18,717	18,392
Commercial real estate [Member] | Substandard [Member]
Loans, Recorded Investment [Line Items]
Loans	734	598
Commercial real estate [Member] | Doubtful [Member]
Loans, Recorded Investment [Line Items]
Loans	0	0
Consumer and other loans [Member]
Loans, Recorded Investment [Line Items]
Loans	7,964	8,355
Consumer and other loans [Member] | Pass [Member]
Loans, Recorded Investment [Line Items]
Loans	7,919	8,355
Consumer and other loans [Member] | Watch [Member]
Loans, Recorded Investment [Line Items]
Loans	45	0
Consumer and other loans [Member] | Substandard [Member]
Loans, Recorded Investment [Line Items]
Loans	0	0
Consumer and other loans [Member] | Doubtful [Member]
Loans, Recorded Investment [Line Items]
Loans	$ 0	$ 0

Loans and Allowance for Loan 41

Loans and Allowance for Loan Losses Schedule of Allowance for Loan Loss Activity (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Loans, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, beginning balance		$ 16,112	$ 14,967
Allowance for loan losses, charge-offs		(60)	0
Allowance for loan losses, recoveries		375	113
Provision for loan losses	[1]	0	200
Allowance for loan losses, ending balance		16,427	15,280
Commercial loans [Member]
Loans, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, beginning balance		3,881	4,369
Allowance for loan losses, charge-offs		(60)	0
Allowance for loan losses, recoveries		59	42
Provision for loan losses		(80)	(268)
Allowance for loan losses, ending balance		3,800	4,143
Construction, land and land development [Member]
Loans, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, beginning balance		2,639	2,338
Allowance for loan losses, charge-offs		0	0
Allowance for loan losses, recoveries		303	44
Provision for loan losses		(28)	280
Allowance for loan losses, ending balance		2,914	2,662
1-4 family residential first mortgages [Member]
Loans, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, beginning balance		317	508
Allowance for loan losses, charge-offs		0	0
Allowance for loan losses, recoveries		1	11
Provision for loan losses		(3)	(123)
Allowance for loan losses, ending balance		315	396
Home equity [Member]
Loans, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, beginning balance		478	481
Allowance for loan losses, charge-offs		0	0
Allowance for loan losses, recoveries		8	7
Provision for loan losses		(39)	31
Allowance for loan losses, ending balance		447	519
Commercial real estate [Member]
Loans, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, beginning balance		8,697	7,254
Allowance for loan losses, charge-offs		0	0
Allowance for loan losses, recoveries		3	3
Provision for loan losses		148	227
Allowance for loan losses, ending balance		8,848	7,484
Consumer and other loans [Member]
Loans, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, beginning balance		100	17
Allowance for loan losses, charge-offs		0	0
Allowance for loan losses, recoveries		1	6
Provision for loan losses		2	53
Allowance for loan losses, ending balance		$ 103	$ 76
[1]	The negative provisions for the various segments are either related to the decline in outstanding balances in each of those portfolio segments during the time periods disclosed and/or improvement in the credit quality factors related to those portfolio segments.

Loans and Allowance for Loan 42

Loans and Allowance for Loan Losses Schedule of Allowance for Loan Losses by Impairment Method (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Loans, Allowance for Loan Losses [Line Items]
Allowance for loan losses, individually evaluated for impairment	$ 483	$ 503
Allowance for loan losses, collectively evaluated for impairment	15,944	15,609
Allowance for loan losses	16,427	16,112
Commercial loans [Member]
Loans, Allowance for Loan Losses [Line Items]
Allowance for loan losses, individually evaluated for impairment	87	91
Allowance for loan losses, collectively evaluated for impairment	3,713	3,790
Allowance for loan losses	3,800	3,881
Construction, land and land development [Member]
Loans, Allowance for Loan Losses [Line Items]
Allowance for loan losses, individually evaluated for impairment	0	0
Allowance for loan losses, collectively evaluated for impairment	2,914	2,639
Allowance for loan losses	2,914	2,639
1-4 family residential first mortgages [Member]
Loans, Allowance for Loan Losses [Line Items]
Allowance for loan losses, individually evaluated for impairment	0	0
Allowance for loan losses, collectively evaluated for impairment	315	317
Allowance for loan losses	315	317
Home equity [Member]
Loans, Allowance for Loan Losses [Line Items]
Allowance for loan losses, individually evaluated for impairment	264	276
Allowance for loan losses, collectively evaluated for impairment	183	202
Allowance for loan losses	447	478
Commercial real estate [Member]
Loans, Allowance for Loan Losses [Line Items]
Allowance for loan losses, individually evaluated for impairment	132	136
Allowance for loan losses, collectively evaluated for impairment	8,716	8,561
Allowance for loan losses	8,848	8,697
Consumer and other loans [Member]
Loans, Allowance for Loan Losses [Line Items]
Allowance for loan losses, individually evaluated for impairment	0	0
Allowance for loan losses, collectively evaluated for impairment	103	100
Allowance for loan losses	$ 103	$ 100

Loans and Allowance for Loan 43

Loans and Allowance for Loan Losses Schedule of Loans by Impairment Method (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	$ 920	$ 1,022
Loans, collectively evaluated for impairment	1,447,211	1,400,198
Loans	1,448,131	1,401,220
Commercial loans [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	87	126
Loans, collectively evaluated for impairment	332,684	333,888
Loans	332,771	334,014
Construction, land and land development [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	0	0
Loans, collectively evaluated for impairment	234,010	205,610
Loans	234,010	205,610
1-4 family residential first mortgages [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	104	108
Loans, collectively evaluated for impairment	48,054	47,076
Loans	48,158	47,184
Home equity [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	293	317
Loans, collectively evaluated for impairment	17,616	17,740
Loans	17,909	18,057
Commercial real estate [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	436	471
Loans, collectively evaluated for impairment	806,883	787,529
Loans	807,319	788,000
Consumer and other loans [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	0	0
Loans, collectively evaluated for impairment	7,964	8,355
Loans	$ 7,964	$ 8,355

Loans and Allowance for Loan 44

Loans and Allowance for Loan Losses Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Real estate [Member]
Loans Receivable [Line Items]
Loans pledged as collateral	$ 710,000	$ 680,000

Derivatives (Details)

Derivatives (Details) - Cash Flow Hedging [Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2018	Dec. 31, 2016
Interest Rate Swap due September 21 2020 [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, notional amount	$ 30,000		$ 30,000
Receive rate	1.46%		1.30%
Pay rate	2.52%		2.52%
Collateral posted	$ 470		$ 470
Interest Rate Swap due September 30, 2026 [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, notional amount	$ 20,000		$ 20,000
Receive rate	0.00%		0.00%
Pay rate	4.81%		4.81%
Interest Rate Swap due September 30, 2026 [Member] | Designated as Hedging Instrument [Member] | Counterparties [Member]
Derivative [Line Items]
Collateral posted	$ 1,110		$ 1,070
Terminated interest rate swap [Member]
Derivative [Line Items]
Derivative termination fee paid	541
Terminated interest rate swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, notional amount	70,000
Other Liabilities [Member] | Interest Rate Swap due September 21 2020 [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Interest Rate Cash Flow Hedge Liability at Fair Value	(384)		(496)
Other Assets [Member] | Interest Rate Swap due September 30, 2026 [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	$ 1,055		$ 1,068
Scenario, Forecast [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative instruments, gain (loss) reclassification from AOCI to interest expense, estimated net amount to be transferred		$ 426

Derivatives Pre-Tax Losses (Det

Derivatives Pre-Tax Losses (Details) - Designated as Hedging Instrument [Member] - Interest Rate Swap [Member] - Cash Flow Hedging [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on interest rate cash flow hedges, pre-tax, accumulated other comprehensive income (loss)	$ 9	$ (830)
Gain (loss) on cash flow hedge ineffectiveness, net	0	0
Other Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on cash flow hedge ineffectiveness, net	0	0
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedge gain (loss) reclassified to interest expense, net	$ (117)	$ (151)

Deferred Income Taxes (Details)

Deferred Income Taxes (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred tax assets, allowance for loan losses	$ 6,242	$ 6,123
Deferred tax assets, net unrealized losses on available-for-sale securities	110	719
Deferred tax assets, intangibles	385	462
Deferred tax assets, accrued expenses	464	706
Deferred tax assets, restricted stock compensation	215	446
Deferred tax assets, state net operating loss carryforward	1,299	1,271
Deferred tax assets, other	186	190
Deferred tax assets, gross	8,901	9,917
Deferred tax liabilities, net deferred loan fees and costs	311	321
Deferred tax liabilities, net unrealized gains on interest rate swaps	128	80
Deferred tax liabilities, premises and equipment	1,068	1,027
Deferred tax liabilities, other	245	261
Deferred tax liabilities, gross	1,752	1,689
Net deferred tax assets before valuation allowance	7,149	8,228
Valuation allowance	(1,299)	(1,271)
Net deferred tax assets	$ 5,850	$ 6,957

Comprehensive Income Changes in

Comprehensive Income Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accumulated Other Comprehensive Income, Changes [Roll Forward]
Accumulated other comprehensive income (loss), balance beg. of period	$ (1,042)
Other comprehensive income (loss), net of tax	1,072	$ 1,229
Accumulated other comprehensive income (loss), balance end of period	30
Unrealized gains (losses) on securities [Member]
Accumulated Other Comprehensive Income, Changes [Roll Forward]
Accumulated other comprehensive income (loss), balance beg. of period	(1,172)	342
Other comprehensive income (loss) before reclassifications, net of tax	996	1,665
Amounts reclassified from accumulated other comprehensive income, net of tax.	(2)	(15)
Other comprehensive income (loss), net of tax	994	1,650
Accumulated other comprehensive income (loss), balance end of period	(178)	1,992
Unrealized gains (losses) on derivatives [Member]
Accumulated Other Comprehensive Income, Changes [Roll Forward]
Accumulated other comprehensive income (loss), balance beg. of period	130	(772)
Other comprehensive income (loss) before reclassifications, net of tax	6	(515)
Amounts reclassified from accumulated other comprehensive income, net of tax.	72	94
Other comprehensive income (loss), net of tax	78	(421)
Accumulated other comprehensive income (loss), balance end of period	208	(1,193)
Accumulated other comprehensive income (loss) [Member]
Accumulated Other Comprehensive Income, Changes [Roll Forward]
Accumulated other comprehensive income (loss), balance beg. of period	(1,042)	(430)
Other comprehensive income (loss) before reclassifications, net of tax	1,002	1,150
Amounts reclassified from accumulated other comprehensive income, net of tax.	70	79
Other comprehensive income (loss), net of tax	1,072	1,229
Accumulated other comprehensive income (loss), balance end of period	$ 30	$ 799

Commitments and Contingencies49

Commitments and Contingencies (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Commitments [Line Items]
Outstanding loan commitments	$ 664,463	$ 620,168
Commitments to extend credit [Member]
Commitments [Line Items]
Outstanding loan commitments	658,652	614,681
Standby letters of credit [Member]
Commitments [Line Items]
Outstanding loan commitments	$ 5,811	$ 5,487

Commitments and Contingencies N

Commitments and Contingencies Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Other Commitments [Line Items]
Present value of credit enhancement fees	$ 187
FHLB MPF program - remaining outstanding balance of loans sold	106,699	$ 112,084
Other Commitments [Domain]
Other Commitments [Line Items]
Commitments to invest in qualified affordable housing projects	$ 5,447	$ 5,768

Fair Value Measurements Recurri

Fair Value Measurements Recurring Basis by Level (Details) - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		$ 261,426	$ 260,637
Fair Value, measurements, recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, interest rate swap		1,055	1,068
Derivative liability, interest rate swap		384	496
Fair Value, measurements, recurring [Member] | Fair value, inputs, level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, interest rate swap		0	0
Derivative liability, interest rate swap		0	0
Fair Value, measurements, recurring [Member] | Fair value, inputs, level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, interest rate swap		1,055	1,068
Derivative liability, interest rate swap		384	496
Fair Value, measurements, recurring [Member] | Fair value, inputs, level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, interest rate swap		0	0
Derivative liability, interest rate swap		0	0
U.S. government agencies and corporations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		2,565	2,593
U.S. government agencies and corporations | Fair Value, measurements, recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		2,565	2,593
U.S. government agencies and corporations | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		0	0
U.S. government agencies and corporations | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		2,565	2,593
U.S. government agencies and corporations | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		0	0
State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		61,957	64,336
State and political subdivisions | Fair Value, measurements, recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		61,957	64,336
State and political subdivisions | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		0	0
State and political subdivisions | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		61,957	64,336
State and political subdivisions | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		0	0
Collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	[1]	105,930	101,950
Collateralized mortgage obligations | Fair Value, measurements, recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		105,930	101,950
Collateralized mortgage obligations | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		0	0
Collateralized mortgage obligations | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		105,930	101,950
Collateralized mortgage obligations | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		0	0
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	[1]	76,272	80,158
Mortgage-backed securities | Fair Value, measurements, recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		76,272	80,158
Mortgage-backed securities | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		0	0
Mortgage-backed securities | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		76,272	80,158
Mortgage-backed securities | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		0	0
Trust preferred security
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		1,260	1,250
Trust preferred security | Fair Value, measurements, recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		1,260	1,250
Trust preferred security | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		0	0
Trust preferred security | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		1,260	1,250
Trust preferred security | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		0	0
Corporate notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		13,442	10,350
Corporate notes [Member] | Fair Value, measurements, recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		13,442	10,350
Corporate notes [Member] | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		13,142	10,050
Corporate notes [Member] | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		300	300
Corporate notes [Member] | Fair Value, measurements, recurring [Member] | Fair value, inputs, level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value		$ 0	$ 0
[1]	All collateralized mortgage obligations and mortgage-backed securities consist of residential mortgage pass-through securities guaranteed by GNMA or issued by FNMA and real estate mortgage investment conduits guaranteed by FHLMC or GNMA.

Fair Value Measurements Nonrecu

Fair Value Measurements Nonrecurring Basis by Level (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair value, measurements, nonrecurring [Member] | Fair value, inputs, level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans	$ 0	$ 0

Fair Value Measurements Carryin

Fair Value Measurements Carrying Amounts and Fair Values (Details) - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		$ 34,994	$ 40,943
Federal funds sold		7,536	35,893
Investment securities available for sale		261,426	260,637
Investment securities held to maturity		48,366	48,386
Federal Home Loan Bank stock		12,110	10,771
Loans, net(1)		1,430,308	1,383,758
Accrued interest receivable		5,585	5,321
Deposits		1,528,754	1,546,605
Federal funds purchased		1,425	9,690
Federal Home Loan Bank advances, net		100,254	99,886
Long-term debt, net		4,300	5,126
Carrying value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities available for sale		261,426	260,637
Carrying value [Member] | Fair value, inputs, level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		34,994	40,943
Federal funds sold		7,536	35,893
Federal Home Loan Bank stock		12,110	10,771
Accrued interest receivable		5,585	5,321
Federal funds purchased		1,425	9,690
Short-term borrowings		36,000	0
Accrued interest payable		321	280
Carrying value [Member] | Fair value, inputs, level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities held to maturity		48,386	48,386
Loans, net(1)		1,430,308	1,383,758
Derivative asset, interest rate swap		1,055	1,068
Deposits		1,528,754	1,546,605
Subordinated notes, net		20,402	20,398
Federal Home Loan Bank advances, net		100,254	99,886
Long-term debt, net		4,300	5,126
Interest rate swap		384	496
Carrying value [Member] | Fair value, inputs, level 3 [Member] | Commitments to extend credit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability		0	0
Carrying value [Member] | Fair value, inputs, level 3 [Member] | Standby letters of credit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability		0	0
Approximate fair value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities available for sale		261,426	260,637
Approximate fair value [Member] | Fair value, inputs, level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		34,994	40,943
Federal funds sold		7,536	35,893
Federal Home Loan Bank stock		12,110	10,771
Accrued interest receivable		5,585	5,321
Federal funds purchased		1,425	9,690
Short-term borrowings		36,000	0
Accrued interest payable		321	280
Approximate fair value [Member] | Fair value, inputs, level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities held to maturity		48,079	47,789
Loans, net(1)	[1]	1,421,808	1,382,569
Derivative asset, interest rate swap		1,055	1,068
Deposits		1,528,615	1,546,307
Subordinated notes, net		12,883	12,703
Federal Home Loan Bank advances, net		100,293	99,959
Long-term debt, net		4,229	5,054
Interest rate swap		384	496
Approximate fair value [Member] | Fair value, inputs, level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, net(1)		0
Approximate fair value [Member] | Fair value, inputs, level 3 [Member] | Commitments to extend credit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability		0	0
Approximate fair value [Member] | Fair value, inputs, level 3 [Member] | Standby letters of credit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability		$ 0	$ 0
[1]	All loans are Level 2 except impaired loans with a net value of $0 as of both March 31, 2017 and December 31, 2016, which are Level 3.

Fair Value Measurements Fair Va

Fair Value Measurements Fair Value Measurements Narratives (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)
Fair Value, measurements, recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers between Levels, Fair Value Disclosure	$ 0