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Condensed Consolidated Balance Sheets (Unaudited) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Current assets    
Cash and cash equivalents $ 29,286 $ 25,777
Investments - Certificates of deposit 0 4,980
Inventories 516 0
Accounts receivables 102 0
Prepaid expenses and other current assets 1,425 1,231
Total current assets 31,329 31,988
Property, plant and equipment    
Land 154 154
Furniture and fixtures 936 880
Machinery and equipment 1,454 1,371
Computer software and equipment 1,899 1,212
Leasehold improvements 1,574 1,148
Property, plant and equipment, gross 6,017 4,765
Less: accumulated depreciation (2,211) (1,512)
Property, plant and equipment, net 3,806 3,253
Total assets 35,135 35,241
Current liabilities    
Accounts payable and accrued expenses 7,412 6,398
Warrant liability 5,915 2,439
Total current liabilities 13,327 8,837
Deferred revenue 300 300
Commitments and contingencies 0 0
Stockholders' equity    
Preferred stock, $.01 par value; 10,000,000 shares authorized; no shares issued and outstanding at June 30, 2012 and December 31, 2011 0 0
Common stock, $.01 par value; 170,000,000 shares authorized; 65,744,017 and 48,237,630 shares issued and 65,715,917 and 48,209,534 outstanding at June 30, 2012 and December 31, 2011, respectively 657 482
Additional paid-in capital 197,243 172,613
Retained earnings (176,341) (146,940)
Treasury stock, at cost; 28,100 shares at June 30, 2012 and December 31, 2011 (51) (51)
Total stockholders' equity 21,508 26,104
Total liabilities and stockholders' equity $ 35,135 $ 35,241