Condensed 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, 2015	$ 115	$ 178,019	$ (29,388)	$ 158,953	$ 307,699
Balance (in shares) at Dec. 31, 2015	11,466,398
Stock based compensation		1,722			1,722
Common stock issued for stock compensation plans, net of shares withheld and withholding paid for employee taxes		(354)			(354)
Common stock issued for stock compensation plans, net of shares withheld and withholding paid for employee taxes (in shares)	46,104
Net income (loss)				1,321	1,321
Other comprehensive (loss) income, net of tax			(5,053)		(5,053)
Balance at Sep. 30, 2016	$ 115	179,387	(34,441)	160,274	305,335
Balance (in shares) at Sep. 30, 2016	11,512,502
Balance at Dec. 31, 2016	$ 115	179,958	(35,218)	160,059	304,914
Balance (in shares) at Dec. 31, 2016	11,513,279
Cumulative effect of adoption of new accounting standard for stock compensation				550	550
Stock based compensation		2,050			2,050
Common stock issued for stock compensation plans, net of shares withheld and withholding paid for employee taxes	$ 1	(96)			(95)
Common stock issued for stock compensation plans, net of shares withheld and withholding paid for employee taxes (in shares)	74,684
Net income (loss)				(98,148)	(98,148)
Other comprehensive (loss) income, net of tax			13,979		13,979
Balance at Sep. 30, 2017	$ 116	$ 181,912	$ (21,239)	$ 62,461	$ 223,250
Balance (in shares) at Sep. 30, 2017	11,587,963