Other Income (Narrative) (Details) - USD ($)	3 Months Ended			9 Months Ended		12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Other Income [Line Items]
Gain on insurance settlement			$ 34,000	$ 119,000	$ 36,000
Des Moines, Iowa market
Other Income [Line Items]
Cash proceeds from insurance settlement		$ 445,000
Gain on insurance settlement		$ 445,000
Other (income) expense, net
Other Income [Line Items]
Reimbursements received	$ 115,000					$ 116,000