Interim Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating Activities
Net Income	$ 24,704	$ 24,637
Adjustment to reconcile net income to net cash used by operating activities:
Provision for doubtful accounts	209	685
Depreciation	7,698	7,985
Amortization of debt issuance	95	157
Stock-based compensation expense	774	768
Excess tax benefits from stock-based payment arrangements	(99)	(156)
Provision for deferred income tax (benefit) expense	(308)	(1,333)
Loss on sale of property, plant & equipment	264	(130)
Changes in operating assets and liabilities:
Accounts receivable	(9,056)	(22,099)
Inventories	(4,279)	(17,446)
Prepaid expenses and other assets	(1,225)	(1,616)
Trade accounts payable and accrued liabilities	7,640	1,553
Income taxes payable	1,849	1,708
Other long-term liabilities	(731)	472
Net cash provided by (used in) operating activities	27,535	(4,815)
Investing Activities
Purchase of property, plant and equipment	(3,540)	(4,705)
Proceeds from sale of property, plant and equipment	523	195
Net cash used in investing activities	(3,017)	(4,510)
Financing Activities
Net change in bank revolving credit facility	5,000	8,000
Principal payments on long-term debt and capital leases	(731)	(1,802)
Dividends paid	(2,139)	(2,132)
Proceeds from sale of common stock	490	258
Excess tax benefits from stock-based payment arrangements	99	156
Net cash provided by (used in) financing activities	2,719	4,480
Effect of exchange rate changes on cash	788	(119)
Net change in cash and cash equivalents	28,025	(4,964)
Cash and cash equivalents at beginning of the period	10,288	30,243
Cash and cash equivalents at end of the period	38,313	25,279
Cash paid during the period for:
Interest	1,502	1,728
Income taxes	$ 11,183	$ 11,056