CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 49,745	$ 44,593
Accounts receivable, net	89,432	91,048
Inventories, net	100,050	84,381
Prepaid expenses and other current assets	3,654	3,661
Income tax receivable	6	270
Deferred income taxes	5,175	5,210
Total current assets	248,062	229,163
Property, plant, and equipment, net	76,337	77,706
Goodwill	30,876	30,890
Intangible assets, net	28,312	29,835
Other assets	5,195	5,361
Deferred income taxes	6,516	6,369
Total assets	395,298	379,324
Current liabilities:
Accounts payable	65,947	59,831
Line of credit	0	0
Accrued compensation	33,005	33,398
Accrued sales discounts, rebates and royalties	6,179	8,093
Accrued income taxes	3,253	3,668
Deferred income taxes	45	41
Other accrued expenses	9,758	10,644
Total current liabilities	118,187	115,675
Long-term liabilities:
Deferred income taxes	10,654	10,687
Income tax payable	525	525
Other long-term liabilities	2,055	1,787
Total liabilities	131,421	128,674
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value, 5,000,000 shares authorized; none issued or outstanding	0	0
Common stock, $0.01 par value, 50,000,000 shares authorized; 21,839,302 and 21,491,398 shares issued on June 30, 2013 and December 31, 2012, respectively	218	215
Paid-in capital	187,744	180,607
Accumulated other comprehensive income (loss)	576	1,052
Retained earnings	179,356	170,569
Stockholders' equity before treasury stock	367,894	352,443
Less cost of common stock in treasury, 6,619,048 and 6,516,382 shares on June 30, 2013 and December 31, 2012, respectively	(104,017)	(101,793)
Total stockholders' equity	263,877	250,650
Total liabilities and stockholders' equity	$ 395,298	$ 379,324