Quarterly report pursuant to Section 13 or 15(d)

Summary of Warrant Activity (Detail)

v3.22.2
Summary of Warrant Activity (Detail) - Warrants
 6 Months Ended
Jun. 30, 2022
$ / shares
shares
Class Of Warrant Or Right [Line Items]  
Beginning Balance | shares 720,000
Granted or Issued | shares 2,132,000
Exercised | shares 0
Forfeited, cancelled, or expired | shares (31,000)
Ending Balance | shares 2,821,000
Warrants exercisable at June 30, 2022 | shares 2,821,000
Vested warrants expired during the period ended June 30, 2022 | shares 31,000
Beginning Balance | $ / shares $ 19.98
Granted or Issued | $ / shares 3.05
Exercised | $ / shares 0
Forfeited, cancelled, or expired | $ / shares 225.00
Ending Balance | $ / shares 4.90
Warrants exercisable at June 30, 2022 | $ / shares 4.90
Vested warrants expired during the period ended June 30, 2022 | $ / shares $ 225.00