Condensed Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]	Subtotal [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2017	$ 6	$ 122,973	$ 77	$ (121,106)	$ 1,950		$ 1,950
Balance, shares at Dec. 31, 2017	6,143,663
Net loss				(1,429)	(1,429)		(1,429)
Cumulative effect of adoption of ASC 606				278	278		278
Net unrealized gains (losses) on foreign currency translation, net of tax			3		3		3
Issuance of common stock, net of equity issuance costs		854			854		854
Issuance of common stock, net of equity issuance costs, shares	211,111
Cashless exercise of stock options
Cashless exercise of stock options, shares	2,471
Noncash stock-based compensation		242			242		242
Balance at Mar. 31, 2018	$ 6	124,069	80	(122,257)	1,898		1,898
Balance, shares at Mar. 31, 2018	6,357,245
Balance at Dec. 31, 2017	$ 6	122,973	77	(121,106)	1,950		1,950
Balance, shares at Dec. 31, 2017	6,143,663
Net loss							(2,661)
Net unrealized gains (losses) on foreign currency translation, net of tax							(4)
Exercise of stock options, shares	(2,471)
Balance at Sep. 30, 2018	$ 7	127,476	73	(123,489)	4,067		4,067
Balance, shares at Sep. 30, 2018	7,134,719
Balance at Mar. 31, 2018	$ 6	124,069	80	(122,257)	1,898		1,898
Balance, shares at Mar. 31, 2018	6,357,245
Net loss				(682)		(682)	(682)
Net unrealized gains (losses) on foreign currency translation, net of tax			(6)			(6)	(6)
Issuance of common stock, net of equity issuance costs	$ 1	2,923				2,924	2,924
Issuance of common stock, net of equity issuance costs, shares	726,735
Noncash stock-based compensation		226			226		226
Exercise of warrants		138			138		138
Exercise of warrants, shares	50,739
Balance at Jun. 30, 2018	$ 7	127,356	74	(122,939)	4,498		4,498
Balance, shares at Jun. 30, 2018	7,134,719
Net loss				(550)	(550)		(550)
Net unrealized gains (losses) on foreign currency translation, net of tax			(1)		(1)		(1)
Noncash stock-based compensation		120			120		120
Balance at Sep. 30, 2018	$ 7	127,476	73	(123,489)	4,067		4,067
Balance, shares at Sep. 30, 2018	7,134,719
Balance at Dec. 31, 2018	$ 7	127,873	71	(124,153)	3,798	3,000	6,798
Balance, shares at Dec. 31, 2018	7,134,719
Net loss				(1,349)	(1,349)		(1,349)
Net unrealized gains (losses) on foreign currency translation, net of tax			(3)		(3)		(3)
Noncash stock-based compensation		158			158		158
Balance at Mar. 31, 2019	$ 7	128,031	68	(125,502)	2,604	3,000	5,604
Balance, shares at Mar. 31, 2019	7,134,719
Balance at Dec. 31, 2018	$ 7	127,873	71	(124,153)	3,798	3,000	6,798
Balance, shares at Dec. 31, 2018	7,134,719
Net loss							(3,035)
Net unrealized gains (losses) on foreign currency translation, net of tax							(8)
Balance at Sep. 30, 2019	$ 8	130,830	63	(127,188)	3,713	3,009	6,722
Balance, shares at Sep. 30, 2019	7,784,535
Balance at Mar. 31, 2019	$ 7	128,031	68	(125,502)	2,604	3,000	5,604
Balance, shares at Mar. 31, 2019	7,134,719
Net loss				(942)	(942)		(942)
Net unrealized gains (losses) on foreign currency translation, net of tax			2		2		2
Issuance of common stock, net of equity issuance costs	$ 1	1,991			1,992		1,992
Issuance of common stock, net of equity issuance costs, shares	493,827
Noncash stock-based compensation		147			147	3	150
Issuance of vested restricted stock
Issuance of vested restricted stock, shares	44,270
Balance at Jun. 30, 2019	$ 8	130,169	70	(126,444)	3,803	3,003	6,806
Balance, shares at Jun. 30, 2019	7,672,816
Net loss				(744)	(744)		(744)
Net unrealized gains (losses) on foreign currency translation, net of tax			(7)		(7)		(7)
Noncash stock-based compensation		348			348	6	354
Exercise of warrants		292				292	292
Exercise of warrants, shares	108,147
Exercise of stock options		21				21	21
Exercise of stock options, shares	4,166
Aggregate fractional shares cancelled due to reverse stock split
Aggregate fractional shares cancelled due to reverse stock split, shares	(594)
Balance at Sep. 30, 2019	$ 8	$ 130,830	$ 63	$ (127,188)	$ 3,713	$ 3,009	$ 6,722
Balance, shares at Sep. 30, 2019	7,784,535