Selected Balance Sheet Information
 9 Months Ended
Sep. 30, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Supplemental Balance Sheet Disclosures [Text Block]

5.   Selected Balance Sheet Information

 

Accounts receivable consisted of the following at September 30, 2012 and December 31, 2011 (in thousands):

 

    September 30, 2012   December 31, 2011
Accounts receivable   $ 682     $ 692  
Bad debt allowance - customer     (560 )     (287 )
Accounts receivable, net   $ 122     $ 405  

 

Property and Equipment consisted of the following at September 30, 2012, and December 31, 2011 (in thousands) :

 

    September 30, 2012   December 31, 2011
Manufacturing equipment   $ 335     $ 400  
Computer and office equipment     32       159  
Laboratory equipment     133       136  
Total     500       695  
Less accumulated depreciation     (251 )     (372 )
Property and equipment, net   $ 249     $ 323  

 

Depreciation expense for the nine months ended September 30, 2012 and 2011 was approximately $51,000 and $133,000, respectively.