Deferred fee plan (Details) - USD ($)			9 Months Ended
	Oct. 31, 2022	Sep. 04, 2014	Jul. 31, 2023	Jul. 31, 2022	Apr. 30, 2023
Deferred fee plan (Details) [Line Items]
Average period		10 years
Shares issued (in Shares)			1,630	5,163
Issuance of shares (in Shares)			274,509
Common stock vested shares (in Shares)			274,509
Deferred Fee Plan [Member]
Deferred fee plan (Details) [Line Items]
Basis spread on any deferred fee			150.00%
Trustee fee expense			$ 26,500
Shares issued (in Shares)				126,600
Deferred trustee fees			$ 26,500	$ 91,300
Dividends payable				$ 35,300	$ 0
Total payment to each participant’s	$ 2,317,000
Cumulative fees	1,366,000
Deferred accrued interest	$ 951,000