XML 64 R55.htm IDEA: XBRL DOCUMENT v3.22.2
Stockholders' Equity - Stock Options and a Summary of Activity (Details)
 6 Months Ended
Jun. 30, 2022
$ / shares
shares
Number of Options  
Outstanding at beginning of period (in shares) | shares 267,109
Granted (in shares) | shares 65,680
Exercised (in shares) | shares (250)
Canceled/forfeited (in shares) | shares (109,122)
Outstanding at end of period (in shares) | shares 223,417
Vested and expected to vest at period end (in shares) | shares 197,739
Exercisable at period end (in shares) | shares 116,179
Weighted Average Exercise Price Per Share  
Outstanding at beginning of period (USD per share) | $ / shares $ 3.46
Granted (USD per share) | $ / shares 1.43
Exercised (USD per share) | $ / shares 1.45
Canceled/forfeited (USD per share) | $ / shares 2.74
Outstanding at end of period (USD per share) | $ / shares 3.22
Vested and expected to vest at period end (USD per share) | $ / shares 3.26
Exercisable at period end (USD per share) | $ / shares $ 3.38
Weighted Average Remaining Contractual Life (in years)  
Outstanding at end of period 7 years 3 months 18 days
Vested and expected to vest at period end 7 years
Exercisable at period end 5 years 9 months 18 days