Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings, Appropriated [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2016	14,731
Balance at Dec. 31, 2016	$ 275	$ 16,840	$ 5,129	$ (2,262)	$ 19,982
Net loss			(7,459)		(7,459)
Other comprehensive loss				(160)	(160)
Dividends			(165)		(165)
Restricted stock grants (in shares)	458
Restricted stock forfeited or expired (in shares)	(106)
Stock purchase and retirement for tax withholdings on vesting of restricted awards (in shares)	(163)
Stock purchase and retirement for tax withholdings on vesting of restricted awards		(136)			(136)
Other	$ 23	(23)
Stock-based compensation (in shares)
Stock-based compensation		423			423
Balance (in shares) at Dec. 31, 2017	14,920
Balance at Dec. 31, 2017	$ 298	17,104	(2,495)	(2,422)	12,485
Net loss			(1,440)		(1,440)
Other comprehensive loss				2,422	2,422
Dividends		(139)			(139)
Restricted stock forfeited or expired (in shares)	(101)
Stock purchase and retirement for tax withholdings on vesting of restricted awards (in shares)	(268)
Stock purchase and retirement for tax withholdings on vesting of restricted awards	$ (4)	(129)			(133)
Stock-based compensation (in shares)	161
Stock-based compensation		449			449
Balance (in shares) at Dec. 31, 2018	14,712
Balance at Dec. 31, 2018	$ 294	$ 17,285	$ (3,935)		$ 13,644