Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net loss	$ (2,738)	$ (23,318)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities
Depreciation expense	2,905	4,022
Restructuring	3,113	5,812
Stock-based compensation	590	739
Net pension cost	736	1,501
Deferred income taxes	(776)	426
Changes in assets and liabilities:
(Increase) decrease in accounts receivable, net and contract assets	(6,752)	15,039
Decrease in inventory	300	41
(Increase) decrease in prepaid expenses, income tax receivable and other assets	(7,603)	20,131
Decrease (increase) in accounts payable and accrued expenses	692	(12,591)
Increase in accrued payroll, deferred revenue, lease liabilities and other long-term liabilities	(1,900)	(2,427)
Net cash (used in) provided by operating activities	(11,433)	9,375
Cash flows from investing activities
Purchases of property, plant and equipment	(1,374)	(1,655)
Proceeds from sale of property, plant and equipment	1,891	15
Net cash provided by (used in) investing activities	517	(1,640)
Cash flows from financing activities
Borrowings	10,000	4,500
Repayment of borrowings	(1,600)
Debt financing costs	(517)	(477)
Issuance of common stock		(2)
Issuance of treasury stock	(14)	14
Payment of finance leases	(357)	(603)
Net cash provided by financing activities	7,512	3,432
Effect of exchange rate changes on cash, cash equivalents and restricted cash	1,067	(311)
Net (decrease) increase in cash and cash equivalents and restricted cash	(2,337)	10,856
Cash and cash equivalents and restricted cash at beginning of period	34,122	20,882
Cash and cash equivalents and restricted cash at end of period	31,785	31,738
Supplemental disclosures
Cash paid for interest	547	643
Cash received for income taxes, net of payments	3,295	19,329
Non-cash investing and financing activities
Purchases of property, plant and equipment included in accounts payable	1,651	489
Proceeds from sale of property, plant and equipment and inventory included in accounts receivable	$ 302