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Condensed Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Current assets:    
Cash and cash equivalents $ 18,272 $ 16,044
Restricted cash 661 0
Marketable securities 25,834 38,064
Restricted marketable securities 4,161 0
Accounts receivable, net of allowance for doubtful accounts of $787 at March 31, 2013 and $627 at December 31,2012 43,521 42,652
Inventories 30,190 39,016
Deferred tax assets, net 126 126
Prepaid expenses and other 4,780 4,829
Total current assets 127,545 140,731
Property and equipment, net of accumulated depreciation of $61,702 at March 31,2013 and $59,702 at December 31,2012 14,236 15,229
Marketable securities 9,862 1,201
Intangible assets, net of accumulated amortization of $12,226 at March 31, 2013 and $11,951 at December 31, 2012 2,887 3,163
Deferred tax assets, net 534 584
Other assets 619 623
Total assets 155,683 161,531
Current liabilities:    
Accounts payable 43,207 45,732
Accrued expenses 28,234 27,800
Short-term margin loan facility 4,822 0
Total current liabilities 76,263 73,532
Other long-term liabilities 2,454 2,552
Total liabilities 78,717 76,084
Stockholders' equity:    
Preferred stock, par value $0.001; 2,000 shares authorized and none outstanding 0 0
Common stock, par value $0.001; 50,000 shares authorized, 33,893 and 33,655 shares issued and outstanding at March 31, 2013 and December 31, 2012, respectively 34 34
Additional paid-in capital 439,121 438,477
Accumulated other comprehensive income (loss) 11 14
Accumulated deficit (337,200) (328,078)
Stockholders' equity before treasury stock 101,966 110,447
Treasury stock at cost; 2,436 common shares at March 31, 2013 and December 31, 2012, respectively (25,000) (25,000)
Total stockholders' equity 76,966 85,447
Total liabilities and stockholders' equity $ 155,683 $ 161,531