CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Common Stock [Member]	Common Stock Warrants [Member]	Additional Paid-in Capital [Member]	Retained Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at beginning at Dec. 31, 2016	$ 46,709	$ 764	$ 13,965	$ (14,065)	$ (456)	$ 46,917
Balance at beginning (in shares) at Dec. 31, 2016	23,354
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income				3,176		3,176
Exercise of common stock warrants	$ 5	(2)	1			4
Exercise of common stock warrants (in shares)	3
Other comprehensive income (loss), net of tax					258	258
Balance at end at Sep. 30, 2017	$ 46,714	762	13,966	(10,889)	(198)	50,355
Balance at end (in shares) at Sep. 30, 2017	23,357
Balance at beginning at Dec. 31, 2017	$ 47,844		14,570	(10,847)	(594)	$ 50,973
Balance at beginning (in shares) at Dec. 31, 2017	23,922					23,922,086
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income				239		$ 239
Other comprehensive income (loss), net of tax					(1,306)	(1,306)
Balance at end at Sep. 30, 2018	$ 47,844		$ 14,570	$ (10,608)	$ (1,900)	$ 49,906
Balance at end (in shares) at Sep. 30, 2018	23,922					23,922,086