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Stock Options, Warrants and 401(k) Savings Plan (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares authorized under plan 2,000,000  
Method used to value the grant date fair value of awards Black-Scholes option pricing model  
Compensation expense from options not yet recognized
Shares remaining available for grant  
Employer contributions for 401(k) savings plan charged to expense during period
Stock option compensation expense recognized
Number of common shares reserved for possible future warrant issuance and debt conversion 5,846,989  
Value of outstanding convertible debentures and accrued interest that could be converted $ 128,300  
Number of common shares reserved for possible future debt conversion 5,090,624  
Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Warrants expiration date 2021-07