Quarterly report pursuant to Section 13 or 15(d)

Equity Awards and Warrants - Warrants Activity (Details)

v3.23.1
Equity Awards and Warrants - Warrants Activity (Details)
$ / shares in Units, $ in Thousands
 9 Months Ended
Feb. 28, 2023
USD ($)
$ / shares
shares
Equity Awards and Warrants  
Warrants outstanding beginning of period | shares 73,248
Granted | shares 119,022
Exercised | shares (4,965)
Forfeited, expired, and cancelled | shares (7,412)
Warrants outstanding at end of period | shares 179,893
Warrants outstanding and exercisable | shares 179,893
Outstanding at the beginning of the year (in dollars per share) | $ / shares $ 0.59
Granted | $ / shares 0.25
Exercised | $ / shares 0.75
Forfeited, expired, and cancelled | $ / shares 0.75
Outstanding at the end of the year (in dollars per share) | $ / shares 0.33
Warrants outstanding and exercisable | $ / shares $ 0.33
Weighted average remaining contractual life in years beginning 3 years 2 months 4 days
Weighted average remaining contractual life in years end of period 4 years 4 months 20 days
Weighted average remaining contractual life in years exercisable 4 years 4 months 20 days
Aggregate intrinsic value outstanding of beginning | $ $ 352
Aggregate intrinsic value outstanding of end period | $ 12,245
Aggregate intrinsic value exercisable | $ $ 12,245