Fair Value Measurements - Schedule of Fair Value Measurements (Details) - USD ($)	Apr. 30, 2021	Oct. 31, 2020
Money market funds: Cash and cash equivalents	$ 27,038,700	$ 3,902,292
Certificates of deposit: Cash and cash equivalents	500,000	2,250,000
Certificates of deposit: Short-term investments	2,000,000	2,640,000
Treasury bills and bonds: Short-term investments	8,399,300
Total financial assets	37,938,000	8,792,292
Level 1 [Member]
Money market funds: Cash and cash equivalents	27,038,700	3,902,292
Certificates of deposit: Cash and cash equivalents	500,000	2,250,000
Certificates of deposit: Short-term investments
Treasury bills and bonds: Short-term investments
Total financial assets	27,538,700	6,152,292
Level 2 [Member]
Money market funds: Cash and cash equivalents
Certificates of deposit: Cash and cash equivalents
Certificates of deposit: Short-term investments	2,000,000	2,640,000
Treasury bills and bonds: Short-term investments	8,399,300
Total financial assets	10,399,300	2,640,000
Level 3 [Member]
Money market funds: Cash and cash equivalents
Certificates of deposit: Cash and cash equivalents
Certificates of deposit: Short-term investments
Treasury bills and bonds: Short-term investments
Total financial assets