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Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Sep. 30, 2011
Current assets:    
Cash and cash equivalents $ 60,246 $ 54,684
Marketable securities 58,372 51,524
Accounts receivable, net 24,634 26,433
Inventories 24,435 23,986
Deferred tax assets 3,389 2,610
Other 2,493 2,997
Total current assets 173,569 162,234
Marketable securities, long-term 2,016 1,603
Property, equipment and improvements, net 15,157 15,370
Identifiable intangible assets, net 10,629 14,360
Goodwill 86,209 86,012
Deferred tax assets 5,010 3,771
Other 494 545
Total assets 293,084 283,895
Current liabilities:    
Accounts payable 6,040 6,492
Income taxes payable 1,269 0
Accrued compensation 5,744 7,758
Accrued warranty 1,021 941
Other 4,118 4,295
Total current liabilities 18,192 19,486
Income taxes payable 3,294 2,620
Deferred tax liabilities 630 813
Other noncurrent liabilities 111 260
Total liabilities 22,227 23,179
Contingencies (see Note 15 & 16)      
Stockholders' equity:    
Preferred stock, $.01 par value; 2,000,000 shares authorized; none issued and outstanding 0 0
Common stock, $.01 par value; 60,000,000 shares authorized; 29,268,788 and 29,100,577 shares issued 293 291
Additional paid-in capital 199,495 194,580
Retained earnings 110,283 102,668
Accumulated other comprehensive loss (13,725) (10,457)
Treasury stock, at cost, 3,356,453 and 3,471,930 shares (25,489) (26,366)
Total stockholders' equity 270,857 260,716
Total liabilities and stockholders' equity $ 293,084 $ 283,895