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Summary of Significant Accounting Policies (Details 2) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Property, Plant and Equipment          
Gross Property and Equipment $ 6,021,000   $ 6,021,000   $ 5,947,000
Accumulated depreciation and amortization (4,085,000)   (4,085,000)   (3,798,000)
Net Property and Equipment 1,936,000   1,936,000   2,149,000
Depreciation expense 174,000 184,000 348,000 367,000  
Production tooling, machinery and equipment
         
Property, Plant and Equipment          
Gross Property and Equipment 3,867,000   3,867,000   3,923,000
Office furniture and fixtures
         
Property, Plant and Equipment          
Gross Property and Equipment 260,000   260,000   260,000
Computer equipment and software
         
Property, Plant and Equipment          
Gross Property and Equipment 1,110,000   1,110,000   1,085,000
Web site
         
Property, Plant and Equipment          
Gross Property and Equipment 63,000   63,000   38,000
Leasehold improvements
         
Property, Plant and Equipment          
Gross Property and Equipment 616,000   616,000   616,000
Construction in-progress
         
Property, Plant and Equipment          
Gross Property and Equipment $ 105,000   $ 105,000   $ 25,000