Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2017	20,600,100
Balance at Dec. 31, 2017	$ 206	$ 153,704	$ 717	$ (663)	$ 153,964	$ 46,619	$ 200,584
Issuance of common stock
Net income (loss)				(9,860)	(9,860)	906	(8,954)
Other comprehensive loss for the period			(3,902)		(3,902)	(357)	(4,259)
Balance (in shares) at Jun. 30, 2018	20,600,100
Balance at Jun. 30, 2018	$ 206	153,704	(3,185)	(10,523)	140,202	47,168	187,370
Balance (in shares) at Mar. 31, 2018	20,600,100
Balance at Mar. 31, 2018	$ 206	153,704	(402)	(6,815)	146,693	47,452	194,145
Issuance of common stock
Net income (loss)				(3,708)	(3,708)	(66)	(3,774)
Other comprehensive loss for the period			(2,783)		(2,783)	(218)	(3,001)
Balance (in shares) at Jun. 30, 2018	20,600,100
Balance at Jun. 30, 2018	$ 206	153,704	(3,185)	(10,523)	140,202	47,168	$ 187,370
Balance (in shares) at Dec. 31, 2018	37,446,323						37,446,323
Balance at Dec. 31, 2018	$ 374	267,317	(5,547)	(31,127)	231,017	45,356	$ 276,373
Issuance of common stock (in shares)	1,005,788
Issuance of common stock	$ 10	6,456			6,466		6,466
Warrant expenses		730			730		730
Share-based compensation expenses		781			781		781
Net income (loss)				(6,940)	(6,940)	1,581	(5,359)
Other comprehensive loss for the period			913		913	(25)	$ 888
Balance (in shares) at Jun. 30, 2019	38,452,111						38,452,111
Balance at Jun. 30, 2019	$ 384	275,284	(4,634)	(38,067)	232,967	46,912	$ 279,879
Balance (in shares) at Mar. 31, 2019	37,561,744
Balance at Mar. 31, 2019	$ 375	268,256	(4,955)	(34,473)	229,203	45,631	274,834
Issuance of common stock (in shares)	890,367
Issuance of common stock	$ 9	5,942			5,951		5,951
Warrant expenses		730			730		730
Share-based compensation expenses		356			356		356
Net income (loss)				(3,594)	(3,594)	1,392	(2,202)
Other comprehensive loss for the period			321		321	(111)	$ 210
Balance (in shares) at Jun. 30, 2019	38,452,111						38,452,111
Balance at Jun. 30, 2019	$ 384	$ 275,284	$ (4,634)	$ (38,067)	$ 232,967	$ 46,912	$ 279,879