Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands		Common Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2015		13,342
Balance at Dec. 31, 2015		$ 24,214	$ 66,562	$ (254)	$ 90,522
Net income (loss)			5,259		5,259
Other comprehensive income (loss), net of tax				(405)	(405)
Comprehensive income					4,854
Dividend on common stock			(1,603)		(1,603)
Common stock issued under employee plans (in shares)		29
Common stock issued under employee plans		$ 84			84
Stock options exercised (in shares)		2
Stock options exercised		$ 10			10
Compensation expense associated with stock options		24			24
Compensation expense associated with restricted stock		$ 215			215
Balance (in shares) at Dec. 31, 2016	[1]	13,373
Balance at Dec. 31, 2016	[1]	$ 24,547	70,218	(659)	94,106
Net income (loss)			2,252		2,252
Other comprehensive income (loss), net of tax				256	256
Comprehensive income					2,508
Dividend on common stock			(404)		(404)
Common stock issued under employee plans (in shares)		28
Common stock issued under employee plans		$ 42			42
Stock options exercised (in shares)		47
Stock options exercised		$ 218			218
Compensation expense associated with stock options		5			5
Compensation expense associated with restricted stock		$ (12)			(12)
Balance (in shares) at Mar. 31, 2017	[2]	13,448
Balance at Mar. 31, 2017	[2]	$ 24,800	$ 72,066	$ (403)	$ 96,463

[1] Excludes 67 unvested restricted shares

[2] Excludes 69 unvested restricted shares