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Note 6 - Intangibles and Acquisition Related Accounting - Annual Amortization (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
First Federal Savings and Loan [Member]        
Amortization of intangible assets $ 400 $ 248 $ 1,157 $ 745