Interest rate cap and swap contracts (Details) - USD ($)			1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 17, 2022	Jan. 10, 2022	Dec. 30, 2021	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022	Oct. 31, 2022
Interest rate cap and swap contracts (Details) [Line Items]
Proceeds from sale		$ 18,200,000	$ 116,500,000
Breakage fees							$ 213,000
Maturity date	October 2026
Settlement amount	$ 1,400,000
Unrealized loss				$ 107,000		$ 557,000
Unrealized gain					$ 2,539,000		$ 3,801,000
Regency Swap [Member]
Interest rate cap and swap contracts (Details) [Line Items]
Unrealized gain						423,000
Interest rate swap contract liabilities								$ 611,000
Station Place Swap [Member]
Interest rate cap and swap contracts (Details) [Line Items]
Unrealized gain						$ 429,000
Interest rate swap contract liabilities								$ 798,000