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Note 1 - Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Schedule of Estimated Useful Lives of Assets [Table Text Block] |
Type |  | Estimated Useful Life (years)
Buildings |  | 15 to 45
Building improvements |  | 5 to 20
Furniture, fixtures, and equipment |  | 3 to 25
Leasehold improvements |  | Shorter of useful lives or the terms of the leases

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