Stock Option Plan and Warrants - Schedule of Stock Option Transactions (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Shares, Outstanding at Beginning of Year	5,953,227	5,693,322
Shares, Granted	1,048,000	1,322,000
Shares, Exercised	(23,140)	(56,345)
Shares, Forfeited or Canceled	(940,333)	(1,005,750)
Shares, Outstanding at End of Year	6,037,754	5,953,227	5,693,322
Shares, Options Exercisable at Year-End	5,969,879	5,577,185
Weighted-Average Fair Value of Options Granted During the Year	$ 0.15	$ 0.25
Weighted-Average Exercise Price, Outstanding at Beginning of Year	1.03	1.07
Weighted-Average Exercise Price, Granted	0.72	1.22	$ 1.10
Weighted-Average Exercise Price, Exercised	0.10	0.10
Weighted-Average Exercise Price, Forfeited or Canceled	1.17	1.55
Weighted-Average Exercise Price, Outstanding at End of Year	0.96	1.03	$ 1.07
Weighted-Average Exercise Price, Options Exercisable at Year-End	$ 0.97	$ 1.10