Condensed Consolidated Statement of Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2018	20,785	8
Balance at Dec. 31, 2018	$ 208	$ (8)	$ 16,304	$ (3,638)	$ 3,432	$ 8,476	$ 24,774
Share-based compensation			49				49
Other comprehensive income (loss)				98	(18)	28	108
Net income (loss)					615		1,036
Net income (loss), non-controlling interest						421
Share-based compensation			49				49
Net income					615		1,036
Balance (in shares) at Mar. 31, 2019	20,785	8
Balance at Mar. 31, 2019	$ 208	$ (8)	16,353	(3,540)	4,029	8,925	25,967
Balance (in shares) at Dec. 31, 2018	20,785	8
Balance at Dec. 31, 2018	$ 208	$ (8)	16,304	(3,638)	3,432	8,476	24,774
Net income (loss)							5,925
Net income (loss), non-controlling interest							2,880
Net income							5,925
Balance (in shares) at Sep. 30, 2019	21,094	2
Balance at Sep. 30, 2019	$ 210	$ (15)	16,448	(4,006)	6,459	11,098	30,194
Balance (in shares) at Mar. 31, 2019	20,785	8
Balance at Mar. 31, 2019	$ 208	$ (8)	16,353	(3,540)	4,029	8,925	25,967
Exercise of stock options (in shares)	65	(6)
Exercise of stock options	$ 1	$ (7)	6
Share-based compensation			51				51
Other comprehensive income (loss)				(16)		75	59
Net income (loss)					1,523		2,807
Net income (loss), non-controlling interest						1,284
Share-based compensation			51				51
Net income					1,523		2,807
Balance (in shares) at Jun. 30, 2019	20,850	2
Balance at Jun. 30, 2019	$ 209	$ (15)	16,410	(3,556)	5,552	10,284	28,884
Exercise of stock options (in shares)	244
Exercise of stock options	$ 1		(27)				(26)
Share-based compensation			65				65
Other comprehensive income (loss)				(450)		(361)	(811)
Net income (loss)					907	1,175	2,082
Net income (loss), non-controlling interest							1,175
Share-based compensation			65				65
Net income					907	1,175	2,082
Balance (in shares) at Sep. 30, 2019	21,094	2
Balance at Sep. 30, 2019	$ 210	$ (15)	16,448	(4,006)	6,459	11,098	30,194
Balance (in shares) at Dec. 31, 2019	21,102	2
Balance at Dec. 31, 2019	$ 211	$ (2)	16,511	(3,616)	5,851	12,406	31,361
Exercise of stock options (in shares)	6
Exercise of stock options
Share-based compensation			25				25
Other comprehensive income (loss)				(1,456)		(2,444)	(3,900)
Net income (loss)					296		922
Net income (loss), non-controlling interest						626
Share-based compensation			25				25
Net income					296		922
Balance (in shares) at Mar. 31, 2020	21,108	2
Balance at Mar. 31, 2020	$ 211	$ (2)	16,536	(5,072)	6,147	10,588	28,408
Balance (in shares) at Dec. 31, 2019	21,102	2
Balance at Dec. 31, 2019	$ 211	$ (2)	16,511	(3,616)	5,851	12,406	31,361
Net income (loss)							4,672
Net income (loss), non-controlling interest							3,335
Net income							4,672
Balance at Sep. 30, 2020	$ 211	$ (2)	16,621	(5,060)	7,188	13,277	32,235
Balance (in shares) at Mar. 31, 2020	21,108	2
Balance at Mar. 31, 2020	$ 211	$ (2)	16,536	(5,072)	6,147	10,588	28,408
Share-based compensation			70				70
Other comprehensive income (loss)				(34)		(45)	(79)
Net income (loss)					(103)		1,305
Net income (loss), non-controlling interest						1,408
Share-based compensation			70				70
Net income					(103)		1,305
Balance (in shares) at Jun. 30, 2020	21,108	2
Balance at Jun. 30, 2020	$ 211	$ (2)	16,606	(5,106)	6,044	11,951	29,704
Exercise of stock options (in shares)	4
Exercise of stock options			(2)				(2)
Share-based compensation			17				17
Other comprehensive income (loss)				46		25	71
Net income (loss)					1,144		2,445
Net income (loss), non-controlling interest						1,301	1,301
Share-based compensation			17				17
Net income					1,144		2,445
Balance at Sep. 30, 2020	$ 211	$ (2)	$ 16,621	$ (5,060)	$ 7,188	$ 13,277	$ 32,235