Consolidated Statement of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2019		13,042,293
Balance at Dec. 31, 2019		$ 138,877	$ (987)	$ (128,194)	$ 9,696
Share-based compensation, including issuance of restricted stock (in shares)		112,846
Share-based compensation, including issuance of restricted stock		$ 320			320
Net loss				(1,547)	(1,547)
Foreign currency translation adjustment, net of tax			(38)		(36)
Foreign currency translation adjustment, net of tax		2
Unrealized gain (loss) on investments, net of tax			(1)		(1)
Balance (in shares) at Jun. 30, 2020		13,155,139
Balance at Jun. 30, 2020		$ 139,199	(1,026)	(129,741)	8,432
Balance (in shares) at Mar. 31, 2020		13,098,718
Balance at Mar. 31, 2020		$ 139,091	(1,022)	(128,668)	9,401
Share-based compensation, including issuance of restricted stock (in shares)		56,421
Share-based compensation, including issuance of restricted stock		$ 105			105
Net loss				(1,073)	(1,073)
Foreign currency translation adjustment, net of tax			(4)		(1)
Foreign currency translation adjustment, net of tax		3
Unrealized gain (loss) on investments, net of tax
Balance (in shares) at Jun. 30, 2020		13,155,139
Balance at Jun. 30, 2020		$ 139,199	$ (1,026)	$ (129,741)	$ 8,432