Condensed Consolidated Balance Sheets (unaudited) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 89,742	$ 77,253
Accounts receivable, net	38,527	32,050
Inventories	18,887	15,720
Prepaid expenses	1,808	2,328
Prepaid income taxes	1,732	1,199
Deferred income taxes	635	552
Other current assets	129	550
Total current assets	151,460	129,652
Property, plant and equipment, net	44,894	43,388
Goodwill	28,515	28,515
Intangible assets with finite lives, net	24,668	26,649
Other assets	425	420
Total assets	249,962	228,624
Current liabilities:
Trade accounts payable	9,063	9,755
Accrued expenses	13,268	9,250
Accrued compensation and other benefits	2,865	4,710
Dividends payable	0	4,311
Income taxes payable	163	0
Current portion of long-term debt	1,565	1,482
Total current liabilities	26,924	29,508
Long-term debt	2,955	3,432
Deferred income taxes	4,787	5,642
Other long-term obligations	2,817	2,575
Total liabilities	37,483	41,157
Stockholders' equity:
Preferred stock, $25 par value. Authorized 2,000,000 shares; none issued and outstanding	0	0
Common stock, $.0667 par value. Authorized 120,000,000 shares; 28,936,712 shares issued and outstanding at June 30, 2011 and 28,752,325 shares issued and outstanding at December 31, 2010	1,929	1,917
Additional paid-in capital	44,257	38,557
Retained earnings	166,027	147,542
Accumulated other comprehensive (loss) income	266	(549)
Total stockholders' equity	212,479	187,467
Total liabilities and stockholders' equity	$ 249,962	$ 228,624