Stock Options, Warrants and 401(k) Savings Plan (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
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	0
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	3,955,005
Value of outstanding convertible debentures and accrued interest that could be converted	$ 138,300
Number of common shares reserved for possible future debt conversion	3,152,640
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrants expiration date	2021-07