CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Consolidated net loss	$ (1,768)	$ (1,376)
Other comprehensive loss, before income tax:
Unrealized foreign currency translation (loss) gain	(78)	72
Unrealized loss on interest rate contracts	0	(350)
Reclassification adjustment to statement of operations	0	12
Other comprehensive income, before income tax	(78)	(266)
Taxes on other comprehensive loss:
Income tax effect related to unrealized foreign currency translation gain	0	18
Income tax effect related to unrealized loss on interest rate contracts	0	(88)
Income tax effect related to reclassification adjustment to statement of operations	0	3
Taxes on other comprehensive income	0	(67)
Other comprehensive loss, net of tax	(78)	(199)
Comprehensive loss	(1,846)	(1,575)
Less: Net income attributable to noncontrolling interest in subsidiary	321	391
Comprehensive loss attributable to common shareholders	$ (2,167)	$ (1,966)