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Condensed Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Current assets:    
Cash and cash equivalents $ 16,341 $ 47,069
Marketable securities 39,958 28,267
Accounts receivable, net of allowance for doubtful accounts of $250 at September 30, 2012 and $245 at December 31, 2011 40,270 36,849
Inventories 36,527 42,279
Deferred tax assets, net 2,005 2,011
Prepaid expenses and other 4,782 3,712
Total current assets 139,883 160,187
Property and equipment, net of accumulated depreciation of $62,925 at September 30, 2012 and $59,217 at December 31, 2011 14,939 18,496
Marketable securities 6,174 13,495
Intangible assets, net of accumulated amortization of $11,636 at September 30, 2012 and $10,899 at December 31, 2011 3,091 35,702
Goodwill    19,772
Deferred tax assets, net 843 1,023
Other assets 672 504
Total assets 165,602 249,179
Current liabilities:    
Accounts payable 38,948 54,030
Accrued expenses 25,188 25,044
Total current liabilities 64,136 79,074
Other long-term liabilities 3,759 4,080
Total liabilities 67,895 83,154
Stockholders' equity:    
Preferred stock, par value $0.001; 2,000 shares authorized and none outstanding      
Common stock, par value $0.001; 50,000 shares authorized, 33082 and 32,262 shares issued and outstanding at September 30, 2012 and December 31, 2011, respectively 33 32
Additional paid-in capital 435,804 429,813
Accumulated other comprehensive income (loss) 36 (8)
Accumulated deficit (313,166) (238,812)
Stockholders' equity before treasury stock 122,707 191,025
Treasury stock at cost; 2,436 common shares at September 30, 2012 and December 31, 2011, respectively (25,000) (25,000)
Total stockholders' equity 97,707 166,025
Total liabilities and stockholders' equity $ 165,602 $ 249,179