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Stock Options and Warrants (Details) - Employee Stock Option [Member] - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Shares, Beginning Balance     1,435,000 1,295,000
Shares, Granted 80,000 80,000 830,000 340,000
Shares, Exercised     0 0
Shares, Cancelled/expired     (78,000) (88,000)
Shares, Ending Balance 2,187,000 1,547,000 2,187,000 1,547,000
Exercisable at end of period 1,189,000 1,105,000 1,189,000 1,105,000
Weighted Average Exercise Price, at beginning of period     $ 0.14 $ 0.23
Weighted Average Exercise Price, Granted     0.11 0.12
Weighted Average Exercise Price, Cancelled/expired     0.18 0.95
Weighted Average Exercise Price, at end of period $ 0.13 $ 0.19 0.13 0.19
Weighted Average Exercise Price, Exercisable, at end of period $ 0.14 $ 0.22 $ 0.14 $ 0.22
Aggregate Intrinsic Value, Outstanding at end of period $ 16,000 $ 9,000 $ 16,000 $ 9,000