Annual report pursuant to Section 13 and 15(d)

Capital Stock, Stock Plans, Warrants and Stock-based Compensation - Schedule of Stock Options Roll Forward (Details)

v3.8.0.1
Capital Stock, Stock Plans, Warrants and Stock-based Compensation - Schedule of Stock Options Roll Forward (Details) - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Shares options outstanding beginning 247,200 [1] 218,200
Shares options granted 428,000 62,000
Shares options exercised
Shares options forfeited/expired (50,400) (33,000)
Shares options outstanding ending 624,800 [2] 247,200 [1]
Shares options exercisable 179,467 [2] 181,867 [1]
Shares options vested and expected to be vested 624,800 239,750
Weighted average exercise price options outstanding beginning $ 6.69 [1] $ 7.65
Weighted average exercise price options granted 3.64 4.09
Weighted average exercise price options exercised
Weighted average exercise price options forfeited/expired 8.95 8.14
Weighted average exercise price options outstanding ending 4.42 [2] 6.69 [1]
Weighted average exercise price options exercisable 6.30 [2] 7.61 [1]
Weighted average exercise price options vested and expected to be vested $ 4.42 $ 6.78
Weighted average remaining contractual term outstanding 5 years 6 months [2] 4 years 3 months 19 days [1]
Weighted average remaining contractual term exercisable 4 years 7 months 6 days [2] 3 years 8 months 12 days [1]
Weighted average remaining contractual term options vested and expected to be vested 5 years 6 months 4 years 3 months 19 days
Aggregate intrinsic value options outstanding [3] $ 19,780 [2] $ 20,940 [1]
Aggregate intrinsic value options exercisable [3] 13,080 [2] 20,940 [1]
Aggregate intrinsic value options vested and expected to be vested [3] $ 19,780 $ 20,940
[1] Options with exercise prices ranging from $2.79 to $14.75
[2] Options with exercise prices ranging from $2.79 to $13.35
[3] The intrinsic value of a stock option is the amount by which the market value of the underlying stock exceeds the exercise price of the option.