Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net loss	$ (1,546)	$ (18,232)
Adjustments to reconcile net loss to net cash provided by (used) in operating activities:
Depreciation and amortization	6,814	4,868
Tax credits used to offset production taxes	1,094	0
Reserve for potential tax credits monetization	0	1,700
Reserve for doubtful accounts	919	135
Equity-based compensation cost	2,399	2,641
Gain on disposal of property and equipment	(661)	(185)
Amortization of loan issuance costs and debt discounts	1,865	1,901
Gain on debt extinguishment	0	(53)
Unrealized (gain) loss on foreign currency transactions	(607)	2,131
Deferred taxes	2,023	62
Changes in operating assets and liabilities	(1,506)	(5,531)
Net cash provided by (used in) operating activities	10,794	(10,563)
Cash flows from investing activities:
Purchase of property and equipment	(598)	(703)
Proceeds from sale of property and equipment	674	193
Net cash provided by (used in) investing activities	76	(510)
Cash flows from financing activities:
Long-term debt and finance lease repayments	(428)	(995)
Long-term debt borrowings	9,666	15,000
Proceeds from issuance of common stock	100	0
Stock issuance costs	0	(1,712)
Purchase of treasury stock	(366)	(175)
Distribution to noncontrolling interest	(1,500)	0
Net cash provided by financing activities	7,472	12,118
Effect of exchange rate changes on cash, cash equivalents and restricted cash	2	(183)
Net change in cash, cash equivalents and restricted cash	18,344	862
Cash, cash equivalents and restricted cash at the beginning of year	7,850	3,734
Cash, cash equivalents and restricted cash at the end of period	$ 26,194	$ 4,596