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CONSOLIDATED BALANCE SHEETS (USD $)
Dec. 31, 2012
Dec. 31, 2011
Current assets:    
Cash and cash equivalents $ 25,717,000 $ 36,922,000
Accounts receivable, net of reserves of $278,000 and of $474,000 in 2012 and 2011, respectively 3,926,000 2,260,000
Inventories, net 3,175,000 3,318,000
Other current assets 1,161,000 837,000
Total current assets 33,979,000 43,337,000
Property and equipment, net 2,174,000 1,711,000
Restricted cash and cash equivalents 350,000 350,000
Investment in joint venture 85,000 250,000
Other assets 2,740,000 1,772,000
Intangibles, net 0 192,000
Goodwill 3,922,000 3,922,000
Total assets 43,250,000 51,534,000
Current liabilities:    
Accounts payable and accrued expenses 7,411,000 5,334,000
Current portion of long-term obligations, net of discount 9,784,000 2,487,000
Warrant liability, current 418,000 0
Total current liabilities 17,613,000 7,821,000
Deferred revenues, related party 638,000 3,520,000
Deferred revenues 2,635,000 5,244,000
Warrant liability, long-term 0 627,000
Option liability 2,250,000 1,910,000
Long-term deferred rent 756,000 504,000
Long-term obligations, net of discount, less current portion 12,903,000 21,962,000
Total liabilities 36,795,000 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; 65,914,050 and 56,594,683 shares issued and outstanding in 2012 and 2011, respectively 66,000 57,000
Additional paid-in capital 281,117,000 252,338,000
Accumulated deficit (274,728,000) (242,449,000)
Total stockholders' equity 6,455,000 9,946,000
Total liabilities and stockholders' equity $ 43,250,000 $ 51,534,000