Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash Flows from Operating Activities:
Net income	$ 628	$ 2,563
Adjustments to reconcile net income to cash (used in) provided by operating activities:
Depreciation and amortization	3,916	4,411
Impairment of equipment held for sale	0	616
Provision for doubtful accounts and bad debt	809	1,308
Noncash amortization of debt financing costs	210	210
Pension plan contribution	(734)	(759)
Shared-based compensation expense	636	708
Loss on disposal of assets	150	132
Deferred income taxes	(1,030)	968
Noncash gain on forward currency exchange contracts	(1,555)	(172)
Change in other operating items:
Accounts receivable	(16,340)	(5,961)
Inventories	(4,890)	4,549
Prepaid expenses	(4,296)	(1,881)
Accounts payable	12,908	(5,327)
Other operating activities, net	2,206	5,556
Net cash (used in) provided by operating activities	(7,382)	6,921
Cash Flows from Investing Activities:
Purchases of property, plant and equipment	(4,461)	(1,664)
Proceeds from disposal/sale of property, plant and equipment	104	0
Net cash used in investing activities	(4,357)	(1,664)
Effect of Foreign Currency Exchange Rate Changes on Cash	576	346
Net (Decrease) Increase in Cash	(11,163)	5,603
Cash:
Beginning of period	130,160	92,194
End of period	118,997	97,797
Supplemental Cash Flow Information:
Cash paid for interest	36	75
Cash paid for income taxes, net	713	345
Unpaid purchases of property and equipment included in accounts payable	$ 226	$ 621