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Other Income (Narrative) (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Other Income [Line Items] |  |  |  |  |  |  |  |  |
Cash proceeds from insurance settlement |  |  |  |  |  |  |  | $ 534,000 | $ 589,000
Gain on insurance settlement | $ 119,000 | $ 616,000 | $ 34,000 | $ 2,000 |  |  | $ 119,000 | 652,000 | 634,000
Des Moines, Iowa market |  |  |  |  |  |  |  |  |
Other Income [Line Items] |  |  |  |  |  |  |  |  |
Cash proceeds from insurance settlement |  | 445,000 |  |  | $ 290,000 | $ 250,000 |  |  |
Gain on insurance settlement |  | $ 445,000 |  |  | $ 290,000 | $ 250,000 |  |  | $ 540,000
Other (income) expense, net |  |  |  |  |  |  |  |  |
Other Income [Line Items] |  |  |  |  |  |  |  |  |
Reimbursements received | $ 115,000 |  |  |  |  |  |  | $ 116,000 |

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