Consolidated Statements of Changes in Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands		Total	Common stock	Retained earnings (deficit)		Accumulated other comprehensive income (loss)
Balance, beginning of period at Dec. 31, 2015		$ 78,470	$ 59,371	$ 19,566	[1]	$ (467)
Beginning Balance, shares at Dec. 31, 2015			9,279
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		13,209		13,209	[1]
Other comprehensive income, net of tax		627				627
Dividends on common stock		(1,524)	$ 109	(1,633)	[1]
10% stock dividend payable September 30, 2016		0	10,394	(10,394)
Common stock issued and related tax effects	[2]	1,097	$ 1,097
Common stock issued and related tax effects, shares	[2]		130
Proceeds from rights offering	[3]	14,412	$ 14,412
Proceeds from rights offering, shares	[3]		1,068
Balance, end of period at Dec. 31, 2016		106,291	$ 85,383	20,748	[1]	160
Ending Balance, shares at Dec. 31, 2016			10,477
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		12,893		12,893	[1]
Other comprehensive income, net of tax		46				46
Dividends on common stock		(2,380)	$ 144	(2,524)	[1]
Common stock issued and related tax effects	[2]	1,255	$ 1,255
Common stock issued and related tax effects, shares	[2]		138
Balance, end of period at Dec. 31, 2017		$ 118,105	$ 86,782	31,117	[1]	206
Ending Balance, shares at Dec. 31, 2017		10,615	10,615
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 21,919		21,919	[1]
Other comprehensive income, net of tax		(328)				(328)
Dividends on common stock		(2,802)	$ 107	(2,910)	[1]
Common stock issued and related tax effects	[2]	1,595	$ 1,595
Common stock issued and related tax effects, shares	[2]		165
Balance, end of period at Dec. 31, 2018		$ 138,488	$ 88,484	50,161	[1]	(157)
Ending Balance, shares at Dec. 31, 2018		10,780	10,780
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect adjustment | Accounting Standards Update 2016-01		$ 40		(40)	[1],[4]	40	[4]
Cumulative effect adjustment | Accounting Standards Update 2018-02		$ 75		$ 75	[1],[5]	$ (75)	[5]

[1] 2017 includes the impact of implementing ASU 2016-09, “Compensation - Stock Compensation (Topic 718),” which resulted in a cumulative-effect adjustment of $498 thousand to retained earnings.

[2] Includes the issuance of common stock under employee benefit plans, which includes nonqualified stock options and restricted stock expense related entries, employee option exercises and the tax benefit of options exercised.

[3] Represents gross proceeds of $14.6 million reduced by legal, accounting and other filing feeds of approximately $213 thousand.

[4] As a result of ASU 2016-01, "Financial Instruments Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities", the Company reclassed $40 thousand of losses on available for sale equity securities sitting in accumulated other comprehensive income to retained earnings.

[5] As a result of ASU 2018-02, "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income", the Company reclassed $75 thousand from accumulated other comprehensive income to retained earnings.