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 (loss)				98	(18)	28	108
Net income					616		1,037
Net income (loss), non-controlling interest						421
Balance (in shares) at Mar. 31, 2019	20,785	8
Balance at Mar. 31, 2019	$ 208	$ (8)	16,353	(3,540)	4,030	8,925	25,968
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							3,844
Net income (loss), non-controlling interest							1,705
Balance (in shares) at Jun. 30, 2019	20,850	2
Balance at Jun. 30, 2019	$ 209	$ (15)	16,410	(3,556)	5,553	10,284	28,885
Balance (in shares) at Mar. 31, 2019	20,785	8
Balance at Mar. 31, 2019	$ 208	$ (8)	16,353	(3,540)	4,030	8,925	25,968
Exercise of stock options (in shares)	65	(6)
Exercise of stock options	$ 1	$ (7)	6
Share-based compensation			51				51
Other comprehensive (loss)				(16)		75	59
Net income					1,523		2,807
Net income (loss), non-controlling interest						1,284	1,284
Balance (in shares) at Jun. 30, 2019	20,850	2
Balance at Jun. 30, 2019	$ 209	$ (15)	16,410	(3,556)	5,553	10,284	28,885
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 (loss)				(1,456)		(2,444)	(3,900)
Net income					296		922
Net income (loss), non-controlling interest						626
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							2,227
Net income (loss), non-controlling interest							2,034
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
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 (loss)				(34)		(45)	(79)
Net income					(103)		1,305
Net income (loss), non-controlling interest						1,408	1,408
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