Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Operating Activities:
Net income	$ 10,438	$ 7,641
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	7,961	8,825
Amortization of debt issuance costs	216	337
Loss on disposal of assets		5
Share-based compensation expense	1,286	1,094
Changes in operating assets and liabilities:
Accounts receivable	(20,594)	(16,036)
Inventories	(4,736)	(569)
Accounts payable	6,939	3,190
Other assets and liabilities	4,191	4,357
Net cash provided by operating activities	5,701	8,844
Investing Activities:
Acquisition of property, plant and equipment	(5,812)	(4,923)
Cash paid to acquire business, net of cash received	(16,217)
Proceeds from disposals of property, plant and equipment		17
Net cash used by investing activities	(22,029)	(4,906)
Financing Activities:
Repayment of short-term debt, net	(763)	(87)
Principal payments on capital lease	(73)	(66)
Proceeds from long-term debt, net	21,786
Repayment of long-term debt, net		(17,715)
Dividends paid	(2,480)
Proceeds from issuance of stock and exercise of stock options	640	186
Net cash provided (used) by financing activities	19,110	(17,682)
Effect of exchange rate changes on cash flows	(9)	(14)
Net Change in Cash	2,773	(13,758)
Cash at Beginning of Period	3,039	18,990
Cash at End of Period	$ 5,812	$ 5,232