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Note 14 - Employee Retirement Benefit Plans - Employee Stock Ownership Plan (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Allocated and committed to be allocated to participants (in shares) 35,566 33,318
Unallocated/unearned (in shares) 163,745 170,316
Total ESOP shares (in shares) 199,311 203,634
Fair value of unallocated/unearned shares $ 2,500,386 $ 2,452,557