Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details 1)

v3.20.1
Stockholders' Equity (Details 1)
3 Months Ended
Mar. 31, 2020
USD ($)
$ / shares
shares
Stockholders' Equity Note [Abstract]  
Stock options outstanding, beginning | shares 380,396
Stock options expired | shares (73,194)
Stock options outstanding, ending | shares 307,202
Weighted average exercise price outstanding, beginning | $ / shares $ 14.43
Weighted average exercise price expired | $ / shares 35.53
Weighted average exercise price outstanding, ending | $ / shares $ 9.39
Weighted average remaining contractual life, beginning 6 years 10 months 2 days
Weighted average remaining contractual life, ending 8 years 2 months 12 days
Aggregate intrinsic value outstanding, beginning | $ $ 0
Aggregate intrinsic value expired | $ 0
Aggregate intrinsic value outstanding, ending | $ $ 0