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Note 6 - Other Assets - Changes in the Net Carrying Amount of MSRs (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Balance at beginning of period $ 2,865 $ 1,446 $ 2,710 $ 1,372
MSRs acquired 1,662 0 1,662 0
Additions for mortgage loans sold 304 511 711 641
Amortization (174) (69) (426) (125)
Balance at end of period $ 4,657 $ 1,888 $ 4,657 $ 1,888