Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Captal	Accumulated Other Comprehensive Loss	Accumulated Deficit
Balance at Mar. 31, 2020	$ 17,775	$ 53	$ 24,810	$ (412)	$ (6,676)
Balance (in shares) at Mar. 31, 2020		5,331,799
Stock-based compensation	$ 59		59
Stock-based compensation (in shares)		8,950
Stock options exercised (in shares)	0
Comprehensive income (loss):
Foreign currency translation adjustment	$ (106)			(106)
Net income (loss)	(111)				(111)
Balance at Dec. 31, 2019	17,933	$ 53	24,751	(306)	(6,565)
Balance (in shares) at Dec. 31, 2019		5,322,849
Balance at Mar. 31, 2021	20,477	$ 54	24,997	(203)	(4,371)
Balance (in shares) at Mar. 31, 2021		5,354,337
Stock-based compensation	$ 53		53
Stock-based compensation (in shares)		7,035
Stock options exercised (in shares)	0
Stock for tax withholding	$ (24)		(24)
Stock for tax withholding (in shares)		(5,324)
Comprehensive income (loss):
Foreign currency translation adjustment	(53)			(53)
Net income (loss)	1,131				1,131
Balance at Dec. 31, 2020	$ 19,370	$ 54	$ 24,968	$ (150)	$ (5,502)
Balance (in shares) at Dec. 31, 2020		5,352,626