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Stock Options and Restricted Stock Units - Schedule of Unvested Restricted Stock Units Roll Forward (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares
12 Months Ended
Jun. 30, 2017
Feb. 18, 2015
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares, Nonvested at beginning of year     500 152,000
Shares, Granted 56,250 15,000
Shares, Vested     (18,750)
Shares, Forfeited     (250) (132,750)
Shares, Nonvested at end of year     250 500
Weighted average exercise price, Nonvested at beginning of year     $ 0.56 $ 0.56
Weighted average exercise price, Granted    
Weighted average exercise price, Vested     0.56
Weighted average exercise price, Forfeited     0.56 0.56
Weighted average exercise price, Nonvested at end of year     $ 0.56 $ 0.56