CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 28,724		$ 44,593
Accounts receivable, net	88,713		91,048
Inventories, net	89,579		84,381
Prepaid expenses and other current assets	3,955		3,661
Income tax receivable	125		270
Deferred income taxes	5,196		5,210
Total current assets	216,292		229,163
Property, plant, and equipment, net	77,472		77,706
Goodwill	30,807		30,890
Intangible assets, net	28,975	[1]	29,835	[1]
Other assets	5,317		5,361
Deferred income taxes	7,202		6,369
Total assets	366,065		379,324
Current liabilities:
Accounts payable	50,295		59,831
Line of credit	0		0
Accrued compensation	31,680		33,398
Accrued sales discounts, rebates and royalties	5,691		8,093
Accrued income taxes	2,779		3,668
Deferred income taxes	38		41
Other accrued expenses	9,564		10,644
Total current liabilities	100,047		115,675
Long-term liabilities:
Deferred income taxes	10,549		10,687
Income tax payable	525		525
Other long-term liabilities	1,921		1,787
Total liabilities	113,042		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; 21,573,699 and 21,491,398 shares issued on March 31, 2013 and December 31, 2012, respectively	216		215
Paid-in capital	182,611		180,607
Accumulated other comprehensive income (loss)	(74)		1,052
Retained earnings	173,515		170,569
Stockholders' equity before treasury stock	356,268		352,443
Less cost of common stock in treasury, 6,589,901 and 6,516,382 shares on March 31, 2013 and December 31, 2012, respectively	(103,245)		(101,793)
Total stockholders' equity	253,023		250,650
Total liabilities and stockholders' equity	$ 366,065		$ 379,324

[1] This table excludes the gross value of fully amortized intangible assets totaling $9.1 million and $9.1 million on March 31, 2013 and December 31, 2012, respectively.