Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2019	$ 55,616	$ 12,652	$ 156,251	$ (51,341)	$ (68,662)	$ 6,716
Stock-based compensation	913		913
Comprehensive income (loss):
Net (loss) income	6,701			5,778		923
Other comprehensive (loss) income	4,135				3,944	191
Comprehensive (loss) income	10,836					1,114
Equity rights offering (Note 9)	18,150	5,508	12,642
Issuance of common stock excluding excess tax benefits	259	152	107
Ending Balance at Sep. 30, 2020	85,774	18,312	169,913	(45,563)	(64,718)	7,830
Beginning Balance at Jun. 30, 2020	61,185	12,794	156,855	(46,531)	(69,202)	7,269
Stock-based compensation	436		436
Comprehensive income (loss):
Net (loss) income	1,238			968		270
Other comprehensive (loss) income	4,775				4,484	291
Comprehensive (loss) income	6,013					561
Equity rights offering (Note 9)	18,150	5,508	12,642
Issuance of common stock excluding excess tax benefits	(10)	10	(20)
Ending Balance at Sep. 30, 2020	85,774	18,312	169,913	(45,563)	(64,718)	7,830
Beginning Balance at Dec. 31, 2020	84,999	18,312	170,318	(43,371)	(68,695)	8,435
Stock-based compensation	1,543		1,543
Comprehensive income (loss):
Net (loss) income	72			(359)		431
Other comprehensive (loss) income	(900)				(1,003)	103
Comprehensive (loss) income	(828)					534
Shareholder exercise of warrants (Note 9)	3,308	575	2,733
Issuance of common stock excluding excess tax benefits	(361)	207	(568)
Ending Balance at Sep. 30, 2021	88,661	19,094	174,026	(43,730)	(69,698)	8,969
Beginning Balance at Jun. 30, 2021	91,608	19,076	173,446	(42,141)	(67,618)	8,845
Stock-based compensation	515		515
Comprehensive income (loss):
Net (loss) income	(1,466)			(1,589)		123
Other comprehensive (loss) income	(2,079)				(2,080)	1
Comprehensive (loss) income	(3,545)					124
Shareholder exercise of warrants (Note 9)	91	16	75
Issuance of common stock excluding excess tax benefits	(8)	2	(10)
Ending Balance at Sep. 30, 2021	$ 88,661	$ 19,094	$ 174,026	$ (43,730)	$ (69,698)	$ 8,969