CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash provided by (used for) operating activities:
Net income	$ 8,787	$ 6,785
Adjustments to reconcile net income to net cash provided by (used for)operating activities:
Depreciation and amortization	8,788	8,525
Provision for doubtful accounts	48	37
Provision for inventory write-downs	1,130	1,623
Deferred income taxes	(111)	6
Tax benefit from exercise of stock options and vested restricted stock	399	(72)
Excess tax benefit from stock-based compensation	(366)	(30)
Shares issued for employee benefit plan	446	468
Stock-based compensation	2,561	2,337
Changes in operating assets and liabilities:
Accounts receivable	638	(4,678)
Inventories	(16,996)	10,630
Prepaid expenses and other assets	143	(711)
Accounts payable and accrued expenses	2,647	(13,523)
Accrued income taxes	(168)	(2,796)
Net cash provided by (used for) operating activities	7,946	8,601
Cash used for investing activities:
Acquisition of property, plant and equipment	(4,655)	(4,261)
Acquisition of intangible assets	(654)	(430)
Net cash used for investing activities	(5,309)	(4,691)
Cash provided by (used for) financing activities:
Issuance of debt	19,500	8,000
Payment of debt	(19,500)	(11,400)
Proceeds from stock options exercised	3,946	1,386
Treasury stock purchased	(2,435)	(486)
Excess tax benefit from stock-based compensation	366	30
Net cash provided by (used for) financing activities	1,877	(2,470)
Effect of exchange rate changes on cash	638	(124)
Net increase (decrease) in cash and cash equivalents	5,152	1,316
Cash and cash equivalents at beginning of period	44,593	29,372
Cash and cash equivalents at end of period	49,745	30,688
Supplemental Cash Flow Information:
Income taxes paid	2,420	5,354
Interest paid	$ 43	$ 176