Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Nov. 30, 2011
May 31, 2011
ASSETS    
Cash and cash equivalents $ 42,955 $ 45,984
Marketable securities, at fair value 93,364 85,558
Total cash, cash equivalents and marketable securities 136,319 131,542
Accounts receivable, net of allowances of $690 and $485, respectively 31,451 27,141
Inventories 29,427 28,126
Deferred income taxes 2,851 2,821
Prepaid expenses and other 5,788 4,675
Total current assets 205,836 194,305
PROPERTY, PLANT AND EQUIPMENT-AT COST, less accumulated depreciation 23,196 23,804
OTHER ASSETS 3,763 2,823
INTANGIBLE ASSETS, less accumulated amortization 43,691 48,037
GOODWILL 161,951 161,951
DEFERRED INCOME TAXES, long term 4,870 5,835
PREPAID ROYALTIES 283 666
TOTAL ASSETS 443,590 437,421
LIABILITIES AND STOCKHOLDERS' EQUITY    
Accounts payable 11,808 11,391
Accrued liabilities 14,522 13,841
Current portion of long-term debt 290 275
Total current liabilities 26,620 25,507
LONG-TERM DEBT, net of current portion 6,125 6,275
Total liabilities 32,745 31,782
COMMITMENTS AND CONTINGENCIES      
STOCKHOLDERS' EQUITY    
Preferred stock, par value $.01 per share, 5,000,000 shares authorized; no shares issued and outstanding      
Common stock, par value $.01 per share, 45,000,000 shares authorized; issued and outstanding 25,103,357 and 24,985,657 shares at November 30, 2011 and May 31, 2011, respectively 251 250
Additional paid-in capital 373,219 371,393
Retained earnings 38,971 35,269
Accumulated other comprehensive loss (1,596) (1,273)
Total stockholders' equity 410,845 405,639
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 443,590 $ 437,421