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Stock Options and Warrants (Details) - Employee Stock Option [Member] - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Shares, Beginning Balance 1,435,000 1,295,000
Shares, Granted 750,000 10,000
Shares, Exercised 0 0
Shares, Cancelled/expired 0 (57,000)
Shares, Ending Balance 2,185,000 1,248,000
Exercisable at end of period 1,037,000 889,000
Weighted Average Exercise Price, at beginning of period $ 0.14 $ 0.31
Weighted Average Exercise Price, Granted 0.11 0.13
Weighted Average Exercise Price, Cancelled/expired   1.01
Weighted Average Exercise Price, at end of period 0.13 0.23
Weighted Average Exercise Price, Exercisable, at end of period $ 0.15 $ 0.26
Aggregate Intrinsic Value, Outstanding at end of period $ 9,000 $ 13,000