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Condensed Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Current assets:    
Cash and cash equivalents $ 18,138 $ 16,044
Marketable securities 21,991 38,064
Restricted marketable securities 2,441 0
Accounts receivable, net of allowance for doubtful accounts of $1,633 at September 30, 2013 and $627 at December 31, 2012 47,542 42,652
Inventories 27,025 39,016
Deferred tax assets, net 70 126
Prepaid expenses and other 7,342 4,829
Total current assets 124,549 140,731
Property and equipment, net of accumulated depreciation of $65,659 at September 30, 2013 and $59,702 at December 31, 2012 11,895 15,229
Marketable securities 5,316 1,201
Intangible assets, net of accumulated amortization of $12,730 at September 30, 2013 and $11,951 at December 31, 2012 2,383 3,163
Deferred tax assets, net 70 584
Other assets 280 623
Total assets 144,493 161,531
Current liabilities:    
Accounts payable 46,509 45,732
Accrued expenses 27,960 27,800
Short-term margin loan facility 2,441 0
Total current liabilities 76,910 73,532
Other long-term liabilities 1,932 2,552
Total liabilities 78,842 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, 34,078 and 33,655 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively 34 34
Additional paid-in capital 440,812 438,477
Accumulated other comprehensive income (loss) (10) 14
Accumulated deficit (350,185) (328,078)
Stockholders' equity before treasury stock 90,651 110,447
Treasury stock at cost; 2,436 common shares at September 30, 2013 and December 31, 2012, respectively (25,000) (25,000)
Total stockholders' equity 65,651 85,447
Total liabilities and stockholders' equity $ 144,493 $ 161,531