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Note 6 - Intangibles and Acquisition Related Accounting - Annual Amortization (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
First Federal Savings and Loan [Member]        
Amortization of intangible assets $ 757 $ 497 $ 410 $ 249