Consolidated Statement of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2020	13,235,038
Balance at Dec. 31, 2020	$ 139,726	$ (992)	$ (130,006)	$ 8,728
Exercise of stock options (in shares)	37,380			36,130
Exercise of stock options	$ 68			$ 68
Vesting of restricted stock awards (in shares)	182,004
Sale of common stock (in shares)	6,902,677
Sale of common stock	$ 31,936			31,936
Share-based compensation, including issuance of restricted stock	596			596
Net loss			(1,462)	(1,462)
Foreign currency translation, net of tax	$ (8)	(22)		(30)
Balance (in shares) at Sep. 30, 2021	20,357,099
Balance at Sep. 30, 2021	$ 172,318	(1,014)	(131,468)	39,836
Balance (in shares) at Jun. 30, 2021	13,479,220
Balance at Jun. 30, 2021	$ 140,494	(1,035)	(130,573)	8,886
Exercise of stock options (in shares)	11,875
Exercise of stock options	$ 14			$ 14
Vesting of restricted stock awards (in shares)	72,206
Sale of common stock (in shares)	6,793,798			6,793,798
Sale of common stock	$ 31,576			$ 31,576
Share-based compensation, including issuance of restricted stock	218			218
Net loss			(895)	(895)
Foreign currency translation, net of tax	$ 16	21		37
Balance (in shares) at Sep. 30, 2021	20,357,099
Balance at Sep. 30, 2021	$ 172,318	$ (1,014)	$ (131,468)	$ 39,836