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Condensed Consolidated Balance Sheets (2015 Unaudited) - USD ($)
Sep. 30, 2015
Dec. 31, 2014
Assets    
Cash and cash equivalents $ 599,000 $ 1,111,000
Accounts receivable, net of allowance for doubtful accounts of $18 and $19 at September 30, 2015 and December 31, 2014, respectively 615,000 453,000
Inventory, net 1,874,000 1,517,000
Prepaid expenses and other current assets 505,000 485,000
Restricted cash   50,000
Total current assets 3,593,000 3,616,000
Property and equipment, net 459,000 714,000
Intangible assets, net 3,121,000 2,795,000
Deposits and other assets 57,000 54,000
Total assets 7,230,000 7,179,000
Liabilities and Stockholders' Equity    
Accounts payable 526,000 670,000
Accrued liabilities 1,373,000 1,711,000
Related party payable 2,893,000 11,000
Advances 250,000 250,000
Fair value of warrant liability 1,354,000 4,216,000
Total current liabilities $ 6,396,000 $ 6,858,000
Commitments and contingencies
Stockholders' Equity    
Common stock [1] $ 2,000 $ 2,000
Additional paid-in capital 96,679,000 95,063,000
Accumulated deficit (95,852,000) (94,749,000)
Total stockholders' equity 834,000 321,000
Total liabilities and stockholders' equity $ 7,230,000 $ 7,179,000
Series B Preferred Stock [Member]    
Stockholders' Equity    
Convertible Preferred stock
Series D Preferred Stock [Member]    
Stockholders' Equity    
Convertible Preferred stock
Series G Preferred Stock [Member]    
Stockholders' Equity    
Convertible Preferred stock $ 5,000 $ 5,000
Series H-1 Preferred Stock [Member]    
Stockholders' Equity    
Convertible Preferred stock
Series H-2 Preferred Stock [Member]    
Stockholders' Equity    
Convertible Preferred stock
[1] See Note 1, "Reverse Stock Split"