Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details 6)

v3.19.1
Stockholders' Equity (Details 6)
 12 Months Ended
Dec. 31, 2018
USD ($)
shares
Number Outstanding 1,386,396
Weighted - Average Remaining Contractual Life 9 years 2 months 5 days
Common Stock Warrants [Member]  
Number Outstanding 8,676,481
Weighted - Average Remaining Contractual Life 3 years 2 months 5 days
Intrinsic Value | $ [1]
Common Stock Warrants [Member] | Exercise Price $1.83 [Member]  
Number Outstanding 1,540
Weighted - Average Remaining Contractual Life 1 year 11 months 16 days
Intrinsic Value | $ [1]
Common Stock Warrants [Member] | Exercise Price $2.20 [Member]  
Number Outstanding 6,953,848
Weighted - Average Remaining Contractual Life 3 years 4 months 24 days
Intrinsic Value | $ [1]
Common Stock Warrants [Member] | Exercise Price $5.50 [Member]  
Number Outstanding 1,123,705
Weighted - Average Remaining Contractual Life 2 years 8 months 1 day
Intrinsic Value | $ [1]
Common Stock Warrants [Member] | Exercise Price $16.23 [Member]  
Number Outstanding 242,021
Weighted - Average Remaining Contractual Life 1 year 11 months 16 days
Intrinsic Value | $ [1]
Common Stock Warrants [Member] | Exercise Price $21.10 [Member]  
Number Outstanding 152,084
Weighted - Average Remaining Contractual Life 1 year 11 months 16 days
Intrinsic Value | $ [1]
Common Stock Warrants [Member] | Exercise Price $34.32 [Member]  
Number Outstanding 185,779
Weighted - Average Remaining Contractual Life 11 months 23 days
Intrinsic Value | $ [1]
Common Stock Warrants [Member] | Exercise Price $40.00 [Member]  
Number Outstanding 875
Weighted - Average Remaining Contractual Life 1 year 26 days
Intrinsic Value | $ [1]
Common Stock Warrants [Member] | Exercise Price $70.00 [Member]  
Number Outstanding 16,629
Weighted - Average Remaining Contractual Life 2 months 23 days
Intrinsic Value | $ [1]
[1] Intrinsic value is calculated as the estimated fair value of the Company's stock at December 31, 2018 less the warrant exercise price of in-the-money warrants.