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Stockholders' Equity - Schedule of Share-based Compensation, Stock Options, Activity (Details) - Stock Option Plans [Member]
3 Months Ended
Mar. 31, 2019
$ / shares
shares
Options Outstanding, Beginning Balance | shares 117,675
Options Outstanding, Granted | shares
Options Outstanding, Forfeited/cancelled | shares (11,598)
Options Outstanding, Exercised | shares
Options Outstanding, Ending Balance | shares 106,077
Vested and expected to vest at March 31, 2019 (unaudited) | shares 106,077
Exercisable at March 31, 2019 (unaudited) | shares 106,077
Weighted Average Exercise Price, Outstanding Beginning Balance | $ / shares $ 2.57
Weighted Average Exercise Price, Granted | $ / shares
Weighted Average Exercise Price, Forfeited or expired | $ / shares
Weighted Average Exercise Price, Exercised | $ / shares
Weighted Average Exercise Price, Outstanding Ending Balance | $ / shares 2.77
Vested and expected to vest at March 31, 2019 (unaudited) | $ / shares 2.77
Exercisable at March 31, 2019 (unaudited) | $ / shares $ 2.77
Weighted Average Remaining Contractual Life (Years) Outstanding, Beginning Balance 2 years 3 months 11 days
Weighted Average Remaining Contractual Life (Years) Outstanding, Ending Balance 2 years 3 months 15 days
Weighted Average Remaining Contractual Life (Years), Vested and expected to vest at March 31, 2019 (unaudited) 2 years 3 months 15 days
Weighted Average Remaining Contractual Life (Years) Exercisable, Ending Balance 2 years 3 months 15 days