Consolidated Statement of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	No Par, Common Stock	Retained Earnings (Accumulated deficit)	Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period at Dec. 31, 2019	$ 42,725	$ 91,816	$ (49,580)	$ 489
Balance at beginning of period (in shares) at Dec. 31, 2019		9,592,861
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	595		595
Repurchase of common stock	(36)	$ (36)
Repurchase of common stock (in shares)		(11,586)
Stock-based compensation expense	706	$ 706
Stock-based compensation expense, Shares		100,453
Other comprehensive income (loss)	423			423
Balance at end of period at Dec. 31, 2020	44,413	$ 92,486	(48,985)	912
Balance at end of period (in shares) at Dec. 31, 2020		9,681,728
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(1,094)		(1,094)
Repurchase of common stock	(12)	$ (12)
Repurchase of common stock (in shares)		(3,886)
Stock-based compensation expense	218	$ 218
Stock-based compensation expense, Shares		29,975
Other comprehensive income (loss)	(3,022)			(3,022)
Balance at end of period at Dec. 31, 2021	$ 40,503	$ 92,692	$ (50,079)	$ (2,110)
Balance at end of period (in shares) at Dec. 31, 2021		9,707,817