Condensed Consolidated Statements of Stockholders' Deficit (Unaudited) - USD ($) $ in Thousands	Restructuring Transactions [Member] Common Stock [Member]	Restructuring Transactions [Member] Additional Paid-in Capital [Member]	Restructuring Transactions [Member] Retained Earnings [Member]	Restructuring Transactions [Member] AOCI Attributable to Parent [Member]	Restructuring Transactions [Member] Noncontrolling Interest [Member]	Restructuring Transactions [Member]	Registered Direct Offering [Member] Common Stock [Member]	Registered Direct Offering [Member] Additional Paid-in Capital [Member]	Registered Direct Offering [Member] Retained Earnings [Member]	Registered Direct Offering [Member] AOCI Attributable to Parent [Member]	Registered Direct Offering [Member] Noncontrolling Interest [Member]	Registered Direct Offering [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2019													14,224,787
Balance at Dec. 31, 2019													$ 142	$ 956,647	$ (974,291)	$ (19,318)	$ 2,188	$ (34,632)
Net loss													0	0	(7,482)	0	(25)	(7,507)
Translation adjustment													0	0	0	(2,515)	(555)	(3,070)
Stock-based compensation expense													$ 0	1,094	0	0	0	1,094
Vesting of restricted stock units/awards (in shares)													17,089
Vesting of restricted stock units/awards													$ 0	0	0	0	0	0
Vested restricted stock cancelled for employee minimum income taxes (in shares)													(1,047)
Vested restricted stock cancelled for employee minimum income taxes													$ 0	(10)	0	0	0	(10)
Exercise of stock options (in shares)													5,000
Exercise of stock options													$ 0	15	0	0	0	15
Balance (in shares) at Jun. 30, 2020													14,245,829
Balance at Jun. 30, 2020													$ 142	957,746	(981,773)	(21,833)	1,608	(44,110)
Balance (in shares) at Mar. 31, 2020													14,240,126
Balance at Mar. 31, 2020													$ 142	957,254	(976,554)	(21,099)	1,654	(38,603)
Net loss													0	0	(5,219)	0	52	(5,167)
Translation adjustment													0	0	0	(734)	(98)	(832)
Stock-based compensation expense													$ 0	477	0	0	0	477
Vesting of restricted stock units/awards (in shares)													1,000
Vesting of restricted stock units/awards													$ 0	0	0	0	0	0
Vested restricted stock cancelled for employee minimum income taxes (in shares)													(297)
Vested restricted stock cancelled for employee minimum income taxes													$ 0	0	0	0	0	0
Exercise of stock options (in shares)													5,000
Exercise of stock options													$ 0	15	0	0	0	15
Balance (in shares) at Jun. 30, 2020													14,245,829
Balance at Jun. 30, 2020													$ 142	957,746	(981,773)	(21,833)	1,608	(44,110)
Balance (in shares) at Dec. 31, 2020													14,333,101
Balance at Dec. 31, 2020													$ 143	958,584	(1,011,516)	(19,913)	1,612	(71,090)
Net loss													0	0	(30,749)	0	(31)	(30,780)
Translation adjustment													0	0	0	515	52	567
Stock-based compensation expense													$ 0	780	0	0	0	780
Vesting of restricted stock units/awards (in shares)													473,204
Vesting of restricted stock units/awards													$ 5	(5)	0	0	0	0
Vested restricted stock cancelled for employee minimum income taxes (in shares)													(123,682)
Vested restricted stock cancelled for employee minimum income taxes													$ (2)	(266)	0	0	0	(268)
Stocks issued (in shares)	10,905,262						2,990,001
Stocks issued	$ 109	$ 26,458	$ 0	$ 0	$ 0	$ 26,567	$ 30	$ 9,772	$ 0	$ 0	$ 0	$ 9,802
Dividend payment to noncontrolling interest													$ 0	0	0	0	(307)	(307)
Balance (in shares) at Jun. 30, 2021													28,577,886
Balance at Jun. 30, 2021													$ 285	995,323	(1,042,265)	(19,398)	1,326	(64,729)
Balance (in shares) at Mar. 31, 2021													17,344,187
Balance at Mar. 31, 2021													$ 173	968,633	(1,018,679)	(19,575)	1,077	(68,371)
Net loss													0	0	(23,586)	0	60	(23,526)
Translation adjustment													0	0	0	177	189	366
Stock-based compensation expense													$ 0	494	0	0	0	494
Vesting of restricted stock units/awards (in shares)													448,839
Vesting of restricted stock units/awards													$ 4	(4)	0	0	0	0
Vested restricted stock cancelled for employee minimum income taxes (in shares)													(120,402)
Vested restricted stock cancelled for employee minimum income taxes													$ (1)	(258)	0	0	0	(259)
Stocks issued (in shares)	10,905,262
Stocks issued	$ 109	$ 26,458	$ 0	$ 0	$ 0	$ 26,567
Balance (in shares) at Jun. 30, 2021													28,577,886
Balance at Jun. 30, 2021													$ 285	$ 995,323	$ (1,042,265)	$ (19,398)	$ 1,326	$ (64,729)