Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows From Operating Activities
Net income	$ 6,844	$ 3,114
Income (loss) from discontinued operations, net of income taxes	(911)	(344)
Income from continuing operations	7,755	3,458
Adjustments to reconcile income from continuing operations to net cash provided by (used for) operating activities
Depreciation	4,479	5,532
Amortization	2,166	2,422
Accelerated depreciation associated with restructuring activities	16	618
Non-cash stock-based compensation expense	1,098	894
(Gain) loss on disposal of fixed assets	(380)	(894)
Deferred taxes	0	374
Interest income received (accrued) on note receivable	334	(324)
Other	60	176
Payments on performance based compensation	(1,249)	(992)
Other long-term liabilities	(123)	(92)
Cash flows provided by (used for) working capital
Accounts receivable	(4,473)	(1,496)
Inventories	(796)	(3,909)
Prepaid expenses and other current assets	447	2,000
Accounts payable and accrued expenses	3,504	5,517
Net cash provided by (used for) operating activities - continuing operations	12,838	13,284
Net cash provided by (used for) operating activities - discontinued operations	(2,085)	(233)
Net cash provided by (used for) operating activities	10,753	13,051
Cash Flows From Investing Activities
Capital expenditures	(1,206)	(480)
Proceeds from sale of property, plant and equipment	2,353	1,027
Net cash provided by (used for) investing activities - continuing operations	1,147	547
Net cash provided by (used for) investing activities - discontinued operations	0	72
Net cash provided by (used for) investing activities	1,147	619
Cash Flows From Financing Activities
Net borrowings (repayments) on credit facility	(6,722)	(9,310)
Cash dividends paid	(4,161)	(4,089)
Proceeds from issuance of common stock	452	247
Shares withheld for employee taxes on equity awards	(359)	(271)
Deferred financing costs	0	(975)
Net cash provided by (used for) financing activities - continuing operations	(10,790)	(14,398)
Net cash provided by (used for) financing activities - discontinued operations	0	0
Net cash provided by (used for) financing activities	(10,790)	(14,398)
Foreign exchange rate effect on cash	(606)	167
Less: Net increase (decrease) in cash classified within discontinued operations	0	24
Net increase (decrease) in cash, cash equivalents, and restricted cash	504	(585)
Cash, cash equivalents, and restricted cash at January 1	11,179	11,039
Cash, cash equivalents, and restricted cash at March 31	$ 11,683	$ 10,454