Consolidated Statement of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Total
Balance at Dec. 31, 2012	$ 103	$ 165,941	$ (28,450)	$ 139,266	$ 276,860
Balance (in shares) at Dec. 31, 2012	10,291,897
Increase (Decrease) in Stockholders' Equity
Stock based compensation		2,736			$ 2,736
Exercise of warrant	$ 1	(1)
Exercise of warrant (in shares)	117,784				117,784
Common stock issued for stock compensation plans, net of shares withheld and withholding paid for employee taxes	$ 1	(807)			$ (806)
Common stock issued for stock compensation plans, net of shares withheld and withholding paid for employee taxes (in shares)	86,175
Net income				10,488	10,488
Other comprehensive income (loss), net of tax			23,734		23,734
Balance at Dec. 31, 2013	$ 105	167,869	(4,716)	149,754	313,012
Balance (in shares) at Dec. 31, 2013	10,495,856
Increase (Decrease) in Stockholders' Equity
Stock based compensation		4,174			$ 4,174
Exercise of warrant	$ 1	(1)
Exercise of warrant (in shares)	73,422				73,422
Common stock issued for stock compensation plans, net of shares withheld and withholding paid for employee taxes	$ 1	(1,521)			$ (1,520)
Common stock issued for stock compensation plans, net of shares withheld and withholding paid for employee taxes (in shares)	104,014
Net income				8,099	8,099
Other comprehensive income (loss), net of tax			(19,231)		(19,231)
Balance at Dec. 31, 2014	$ 107	170,521	(23,947)	157,853	304,534
Balance (in shares) at Dec. 31, 2014	10,673,292
Increase (Decrease) in Stockholders' Equity
Stock based compensation		1,584			1,584
Exercise of warrant	$ 7	6,863			$ 6,870
Exercise of warrant (in shares)	719,075				228,316
Common stock issued for stock compensation plans, net of shares withheld and withholding paid for employee taxes	$ 1	(949)			$ (948)
Common stock issued for stock compensation plans, net of shares withheld and withholding paid for employee taxes (in shares)	74,031
Net income				1,100	1,100
Other comprehensive income (loss), net of tax			(5,441)		(5,441)
Balance at Dec. 31, 2015	$ 115	$ 178,019	$ (29,388)	$ 158,953	$ 307,699
Balance (in shares) at Dec. 31, 2015	11,466,398