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CONSOLIDATED CONDENSED BALANCE SHEETS (UNAUDITED) (USD $)
Mar. 31, 2012
Dec. 31, 2011
Current assets:    
Cash and cash equivalents $ 34,399,000 $ 36,922,000
Accounts receivable, net of reserves of $187,000 and of $474,000 in 2012 and 2011, respectively 1,425,000 2,260,000
Inventories, net 3,374,000 3,318,000
Other current assets 1,135,000 837,000
Total current assets 40,333,000 43,337,000
Property and equipment, net 2,367,000 1,711,000
Restricted cash and cash equivalents 350,000 350,000
Investment in joint venture 200,000 250,000
Other assets 1,794,000 1,772,000
Intangibles, net 136,000 192,000
Goodwill 3,922,000 3,922,000
Total assets 49,102,000 51,534,000
Current liabilities:    
Accounts payable and accrued expenses 6,046,000 5,334,000
Current portion of long-term obligations 4,911,000 2,487,000
Total current liabilities 10,957,000 7,821,000
Deferred revenues, related party 3,520,000 3,520,000
Deferred revenues 5,176,000 5,244,000
Warrant liability 757,000 627,000
Option liability 1,640,000 1,910,000
Long-term deferred rent 498,000 504,000
Long-term obligations, net of discount, less current portion 19,704,000 21,962,000
Total liabilities 42,252,000 41,588,000
Commitments and contingencies      
Stockholders' equity:    
Preferred stock, $0.001 par value; 5,000,000 shares authorized; -0- shares issued and outstanding in 2012 and 2011 0 0
Common stock, $0.001 par value; 95,000,000 shares authorized; 58,428,606 and 56,594,683 shares issued and outstanding in 2012 and 2011, respectively 58,000 57,000
Additional paid-in capital 258,566,000 252,338,000
Accumulated deficit (251,774,000) (242,449,000)
Total stockholders' equity 6,850,000 9,946,000
Total liabilities and stockholders' equity $ 49,102,000 $ 51,534,000