UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Preferred Class B	Preferred Stock	Preferred Stock Preferred Class B	Common Stock [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Preferred Class B	AOCI Attributable to Parent [Member]	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	Retained Earnings [Member]	Parent [Member]	Parent [Member] Preferred Class B	Noncontrolling Interest [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 56,840				$ 37	$ 641,930		$ (61,118)		$ (524,009)	$ 56,840		$ 0
Shares, Outstanding at Dec. 31, 2018					37,728,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period					190,000
Stock Issued During Period, Value, Stock Options Exercised	(271)					(271)					(271)
Adjustments to Additional Paid in Capital, Other	(776)					(1,346)					(1,346)		570
Stock-based compensation	1,384					1,384					1,384
Foreign currency translation adjustments	(87)								$ (87)		(87)
Net loss	1,533									1,533	1,533		(319)
Net Income (Loss) Attributable to Noncontrolling Interest	(319)
Stockholders' Equity, Other	(450)					(362)					(362)		(88)
Proceeds from issuance of preferred stock	0
Shares, Outstanding at Mar. 31, 2019					37,918,000
Net income (loss) including noncontrolling interests	1,214
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 58,754				$ 37	642,059		(61,205)		(522,476)	58,415		339
Preferred stock, shares issued	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 38,273		$ 0		$ 38	644,070		(61,323)		(544,010)	38,775		(502)
Shares, Outstanding at Dec. 31, 2019			0		38,227,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period					4,000
Stock Issued During Period, Value, Stock Options Exercised	0					0					0
Stock-based compensation	380					380					380
Foreign currency translation adjustments	(907)								$ (907)		(907)
Net loss										(4,642)	(4,642)
Net Income (Loss) Attributable to Noncontrolling Interest													(47)
Proceeds from issuance of preferred stock	10,000
Shares, Outstanding at Mar. 31, 2020			8,065,000		38,231,000
Net income (loss) including noncontrolling interests	$ (4,689)
Issuance of Preferred B Stock (in shares)				(8,065,000)
Issuance of Preferred B Stock		$ 10,000		$ 8			$ 9,992					$ 10,000
Preferred stock, shares issued	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 43,057		$ 8		$ 38	$ 654,442		$ (62,230)		$ (548,652)	$ 43,606		$ (549)