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Income Taxes (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Taxes [Abstract]      
Income tax benefit    $ 613,397   
Professional fees   61,340  
Deferred tax assets:      
Depreciation 104,000 95,000  
Allowance for bad debts 70,000 37,000  
Net operating loss carryforwards 23,116,000 22,516,000  
Stock option expense 1,347,000 1,051,000  
Research and other credits 972,000 977,000  
Other temporary differences 15,000 15,000  
Total gross deferred tax assets 25,624,000 24,700,000  
Less valuation allowance (25,624,000) (24,700,000)  
Deferred Tax Assets, Net of Valuation Allowance        
Operating Loss Carryforwards [Line Items]      
Net operating loss carryforward 58,000,000    
Research and other credit carryforwards 972,000    
Research and other credit carryforwards expiration dates Dec. 31, 2033    
Tax Year 2014 [Member]
      
Operating Loss Carryforwards [Line Items]      
Net operating loss carryforward 3,227,000    
Net operating loss carryforward expiration dates Dec. 31, 2014    
Research and other credit carryforwards $ 84,000    
Research and other credit carryforwards expiration dates Dec. 31, 2014    
Minimum [Member]
      
Operating Loss Carryforwards [Line Items]      
Net operating loss carryforward expiration dates Jan. 01, 2014    
Maximum [Member]
      
Operating Loss Carryforwards [Line Items]      
Net operating loss carryforward expiration dates Dec. 31, 2033