Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Statement of Cash Flows [Abstract]
Net income (loss)	$ 15,909	$ (12,519)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Depreciation and software amortization	5,767	7,622
Impairment of assets	3,822	0
Intangible asset amortization	113	544
Stock-based compensation	(706)	1,818
Net pension cost	1,284	827
Interest accretion on contingent consideration	742	3,122
Deferred income taxes	(978)	(1,917)
Gain on sale	(32,760)	0
(Gain) loss on disposal of assets	(238)	135
Changes in assets and liabilities:
Decrease (increase) in accounts receivable, net and contract assets	10,021	(1,874)
Decrease (increase) in inventory	60	42
Decrease (increase) in prepaid expenses, income tax receivable and other assets	(10,632)	(4,864)
Increase (decrease) in accounts payable	9,693	(3,840)
Increase (decrease) in other accrued expenses and liabilities	(9,110)	(31,062)
Net cash used in operating activities	(7,013)	(41,966)
Cash flows from investing activities
Dispositions, net of cash transferred	3,929	0
Purchases of property, plant and equipment	(2,834)	(4,112)
Proceeds from sale of property, plant and equipment	225	18
Net cash provided by/(used in) investing activities	1,320	(4,094)
Cash flows from financing activities
Borrowings	9,000	27,000
Repayment of borrowings	(9,000)	(15,211)
Debt financing costs	(425)	(515)
Issuance of preferred stock, net of transaction fees	9,723	0
Issuance of common stock	(105)	(110)
Issuance of treasury stock	65	0
Payment of capital leases	(377)	(383)
Net cash provided by financing activities	8,881	10,781
Effect of exchange rate changes on cash and cash equivalents	(1,207)	677
Net increase (decrease) in cash and cash equivalents	1,981	(34,602)
Cash and cash equivalents at beginning of period	8,397	46,005
Cash and cash equivalents at end of period	10,378	11,403
Supplemental disclosures
Cash paid for interest	113	172
Cash received (paid) for income taxes	41	(34,723)
Non-cash investing and financing activities
Purchases of property, plant and equipment included in accounts payable	36	1,174
New capital lease obligations	$ 372	$ 58