CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 44,602	$ 44,593
Accounts receivable, net	103,466	91,048
Inventories, net	103,579	84,381
Prepaid expenses and other current assets	3,573	3,661
Income tax receivable	12	270
Deferred income taxes	5,102	5,210
Total current assets	260,334	229,163
Property, plant, and equipment, net	76,662	77,706
Goodwill	30,961	30,890
Intangible assets, net	27,632	29,835
Other assets	5,096	5,361
Deferred income taxes	6,252	6,369
Total assets	406,937	379,324
Current liabilities:
Accounts payable	57,153	59,831
Line of credit	0	0
Accrued compensation	35,529	33,398
Accrued sales discounts, rebates and royalties	7,165	8,093
Accrued income taxes	2,756	3,668
Deferred income taxes	56	41
Other accrued expenses	10,550	10,644
Total current liabilities	113,209	115,675
Long-term liabilities:
Deferred income taxes	10,549	10,687
Income tax payable	525	525
Other long-term liabilities	2,082	1,787
Total liabilities	126,365	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; 22,133,206 and 21,491,398 shares issued on September 30, 2013 and December 31, 2012, respectively	221	215
Paid-in capital	194,360	180,607
Accumulated other comprehensive income (loss)	2,641	1,052
Retained earnings	187,979	170,569
Stockholders' equity before treasury stock	385,201	352,443
Less cost of common stock in treasury, 6,634,641 and 6,516,382 shares on September 30, 2013 and December 31, 2012, respectively	(104,629)	(101,793)
Total stockholders' equity	280,572	250,650
Total liabilities and stockholders' equity	$ 406,937	$ 379,324