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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2012
Property And Equipment Tables  
Property and equipment

Property and equipment consisted of the following at December 31:

 

   2012  2011
Computers and software   $580,000   $618,000 
Machinery and equipment    535,000    892,000 
Furniture and office equipment    87,000    98,000 
Demonstration vehicles and buses    675,000    774,000 
Leasehold improvements    1,327,000    1,348,000 
Construction in progress    —      39,000 
    3,204,000    3,769,000 
Less accumulated depreciation and amortization    (2,897,000)   (2,841,000)
Total   $307,000   $928,000