v3.20.4
Stock-Based Compensation - Summary of Option Activity (Detail) - $ / shares
1 Months Ended 9 Months Ended
Feb. 01, 2020
Oct. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]    
Shares, Granted 0 180,000
Shares, Outstanding, Ending balance   180,000
Shares, Vested and expected to vest   180,000
Shares, Exercisable   108,000
Shares, Non-vested   72,000
Wtd. Avg. Exercise Price, Outstanding, Beginning balance   $ 345.400
Wtd. Avg. Exercise Price, Granted   1.320
Wtd. Avg. Exercise Price, Outstanding, Ending balance $ 345.400 1.690
Wtd. Avg. Exercise Price, Vested and expected to vest   1.690
Wtd. Avg. Exercise Price, Exercisable   1.937
Wtd. Avg. Exercise Price, Non-vested   $ 1.320
Wtd. Avg. Remaining Contractual Life in Years, Outstanding 2 years 3 months 15 days 4 years 6 months 29 days
Wtd. Avg. Remaining Contractual Life in Years, Granted   4 years 10 months 2 days
Wtd. Avg. Remaining Contractual Life in Years, Vested and expected to vest   4 years 6 months 29 days
Wtd. Avg. Remaining Contractual Life in Years, Exercisable   4 years 6 months 29 days
Wtd. Avg. Remaining Contractual Life in Years, Non-vested   4 years 6 months 29 days