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Condensed Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Current assets:    
Cash and cash equivalents $ 11,827 $ 2,911
Marketable securities 15,040 16,612
Restricted marketable securities 298 2,566
Accounts receivable, net of allowance for doubtful accounts of $2,491 at March 31, 2014 and $2,449 at December 31, 2013 30,028 39,985
Inventories 25,129 27,793
Deferred tax assets, net 100 100
Prepaid expenses and other 2,792 5,662
Total current assets 85,214 95,629
Property and equipment, net of accumulated depreciation of $64,207 at March 31, 2014 and $62,334 at December 31, 2013 8,246 9,901
Marketable securities 720 3,443
Intangible assets, net of accumulated amortization of $13,235 at March 31, 2014 and $12,983 at December 31, 2013 1,879 2,131
Deferred tax assets, net 81 81
Other assets 731 280
Total assets 96,871 111,465
Current liabilities:    
Accounts payable 23,187 24,538
Accrued expenses 21,141 23,271
Current portion of contingent loss for litigation 4,326 4,326
Short-term margin loan facility 298 2,566
Total current liabilities 48,952 54,701
Other long-term liabilities 1,723 1,848
Long-term portion of contingent loss for litigation 10,000 10,000
Total liabilities 60,675 66,549
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, 34,315 and 34,097 shares issued and outstanding at March 31, 2014 and December 31, 2013, respectively 34 34
Additional paid-in capital 441,628 441,368
Accumulated other comprehensive income 6 5
Accumulated deficit (380,472) (371,491)
Stockholders' equity before treasury stock 61,196 69,916
Treasury stock at cost; 2,436 common shares at March 31, 2014 and December 31, 2013, respectively (25,000) (25,000)
Total stockholders' equity 36,196 44,916
Total liabilities and stockholders' equity $ 96,871 $ 111,465