Share-Based Payments - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 31, 2024	Oct. 31, 2023	Apr. 30, 2024
Total
Outstanding, beginning balance (in shares)	1,919,497
Granted (in shares)	1,000
Exercised (in shares)	0
Forfeited (in shares)	0
Canceled (in shares)	(500)
Expired (in shares)	0
Outstanding, ending balance (in shares)	1,919,997
Vested and expected to vest (in shares)	1,919,997
Exercisable (in shares)	1,555,579
Weighted Average Exercise Price
Outstanding, beginning balance (in dollars per share)	$ 5.04
Granted (in dollars per share)	4.90
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	0
Canceled (in dollars per share)	6.11
Expired (in dollars per share)	0
Outstanding, ending balance (in dollars per share)	5.04
Vested and expected to vest (in dollars per share)	5.04
Exercisable (in dollars per share)	$ 4.74
Weighted Average Remaining Contractual Life (Years)
Outstanding (in years)	5 years	5 years 2 months 12 days
Outstanding, granted (in years)	9 years 9 months 18 days
Vested and expected to vest (in years)	5 years
Exercisable (in years)	4 years 1 month 6 days
Aggregate Intrinsic Value
Outstanding	$ 2,125		$ 2,172
Vested and expected to vest	2,125
Exercisable	$ 2,125
Directors and Employees
Total
Outstanding, beginning balance (in shares)	1,883,166
Granted (in shares)	1,000
Exercised (in shares)	0
Forfeited (in shares)	0
Canceled (in shares)	(500)
Expired (in shares)	0
Outstanding, ending balance (in shares)	1,883,666
Vested and expected to vest (in shares)	1,883,666
Exercisable (in shares)	1,551,829
Non- Employees
Total
Outstanding, beginning balance (in shares)	36,331
Granted (in shares)	0
Exercised (in shares)	0
Forfeited (in shares)	0
Canceled (in shares)	0
Expired (in shares)	0
Outstanding, ending balance (in shares)	36,331
Vested and expected to vest (in shares)	36,331
Exercisable (in shares)	3,750