Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating Activities:
Net income	$ 5,238	$ 2,871
Adjustments to reconcile net income to net cash used by operating activities:
Depreciation and amortization	3,877	4,531
Amortization of debt issuance costs	108	146
Loss on disposal of assets		4
Share-based compensation expense	539	430
Changes in operating assets and liabilities:
Accounts receivable	(15,257)	(15,981)
Inventories	(1,963)	1,048
Accounts payable	5,241	2,700
Other assets and liabilities	920	1,755
Net cash used by operating activities	(1,297)	(2,496)
Investing Activities:
Acquisition of property, plant and equipment	(2,178)	(3,154)
Cash paid to acquire business, net of cash received	(7,312)
Net cash used by investing activities	(9,490)	(3,154)
Financing Activities:
Proceeds from short-term debt, net	3,275	2,142
Principal payments on capital lease	(36)	(32)
Proceeds from long-term debt, net	10,000
Repayment of long-term debt, net		(8,000)
Dividends paid	(1,235)
Proceeds from issuance of stock and exercise of stock options	359
Net cash provided (used) by financing activities	12,363	(5,890)
Effect of exchange rate changes on cash flows	(73)	197
Net Change in Cash	1,503	(11,343)
Cash at Beginning of Period	3,039	18,990
Cash at End of Period	$ 4,542	$ 7,647