CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2017	$ 2	$ 46,076	$ (10,174)	$ (2)	$ 35,902
Balance (in shares) at Dec. 31, 2017	17,227,682
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	1,304	0	1,304
Share-based compensation	0	713	0	0	713
Adjustment from foreign currency translation, net	0	0	0	(15)	(15)
Balance at Jun. 30, 2018	$ 2	46,789	(8,870)	(17)	37,904
Balance (in shares) at Jun. 30, 2018	17,227,682
Balance at Mar. 31, 2018	$ 2	46,304	(10,714)	19	35,611
Balance (in shares) at Mar. 31, 2018	17,227,682
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	1,844	0	1,844
Share-based compensation	0	485	0	0	485
Adjustment from foreign currency translation, net	0	0	0	(36)	(36)
Balance at Jun. 30, 2018	$ 2	46,789	(8,870)	(17)	37,904
Balance (in shares) at Jun. 30, 2018	17,227,682
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new accounting pronouncement | ASU 2014-09 [Member]	$ 0	0	(1,015)	0	(1,015)
Balance at Dec. 31, 2018	$ 4	61,889	(17,418)	(2)	44,473
Balance (in shares) at Dec. 31, 2018	36,182,783
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Warrant exchange	$ 0	(10,031)	0	0	(10,031)
Warrant exchange (in shares)	1,800,065
Net income	$ 0	0	10,230	0	10,230
Share-based compensation	0	1,260	0	0	1,260
Adjustment from foreign currency translation, net	0	0	0	43	43
Balance at Jun. 30, 2019	$ 4	53,118	(8,203)	41	44,960
Balance (in shares) at Jun. 30, 2019	37,982,848
Balance at Mar. 31, 2019	$ 4	62,515	(15,277)	6	47,248
Balance (in shares) at Mar. 31, 2019	36,182,783
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Warrant exchange	$ 0	(10,031)	0	0	(10,031)
Warrant exchange (in shares)	1,800,065
Net income	$ 0	0	7,074	0	7,074
Share-based compensation	0	634	0	0	634
Adjustment from foreign currency translation, net	0	0	0	35	35
Balance at Jun. 30, 2019	$ 4	$ 53,118	$ (8,203)	$ 41	$ 44,960
Balance (in shares) at Jun. 30, 2019	37,982,848