Deferred fee plan (Details) - USD ($)		1 Months Ended	12 Months Ended
	Sep. 01, 2014	Nov. 11, 2014	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2020
Deferred fee plan (Details) [Line Items]
Average period	10 years
Trustee fee expense			$ 0	$ 0	$ 21,000
Annual installments over a period		10 years
Deferred Fee Plan [Member]
Deferred fee plan (Details) [Line Items]
Percentage of deferred fee plan accrued interest			9.00%
Basis spread on any deferred fee			150.00%
Trustee fee expense			$ 488,000	$ 1,861,000
Shares issued (in Shares)			27,176	100,655
Deferred trustee fees			$ 120,000,000	$ 446,000	526,000
Dividends payable			1,741,000	42,000	$ 0
Cumulative fees			1,454,000	1,366,000
Deferred accrued interest			$ 1,021,000	$ 951,000