Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Securities - Securities with Gross Unrealized Losses Not Recognized in Income (Details)

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Note 4 - Securities - Securities with Gross Unrealized Losses Not Recognized in Income (Details)
$ in Thousands
Sep. 30, 2020
USD ($)
Dec. 31, 2019
USD ($)
Collateralized mortgage obligations and residential mortgage-backed securities $ 28,423 $ 13,226
Unrealized losses, less than 12 months (326) (76)
Estimated fair value, 12 months or longer 879 16,141
Unrealized losses, 12 months or longer (1,307) (1,191)
Estimated fair value, total 29,302 29,367
Collateralized mortgage obligations and residential mortgage-backed securities $ (1,633) $ (1,267)
Unrealized losses, less than 12 months, number of securities 32 11
Unrealized losses, 12 months or longer, number of securities 2 17
Unrealized losses, total, number of securities 34 28
Collateralized Mortgage Obligations and Residential Mortgage Backed Securities [Member]    
Collateralized mortgage obligations and residential mortgage-backed securities $ 6,096 $ 8,859
Unrealized losses, less than 12 months (23) (31)
Estimated fair value, 12 months or longer 0 15,065
Unrealized losses, 12 months or longer 0 (65)
Estimated fair value, total 6,096 23,924
Collateralized mortgage obligations and residential mortgage-backed securities (23) (96)
US Government-sponsored Enterprises Debt Securities [Member]    
Collateralized mortgage obligations and residential mortgage-backed securities 4,989 0
Unrealized losses, less than 12 months (9) 0
Estimated fair value, 12 months or longer 0 0
Unrealized losses, 12 months or longer 0 0
Estimated fair value, total 4,989 0
Collateralized mortgage obligations and residential mortgage-backed securities (9) 0
US States and Political Subdivisions Debt Securities [Member]    
Collateralized mortgage obligations and residential mortgage-backed securities 17,338 4,367
Unrealized losses, less than 12 months (294) (45)
Estimated fair value, 12 months or longer 0 0
Unrealized losses, 12 months or longer 0 0
Estimated fair value, total 17,338 4,367
Collateralized mortgage obligations and residential mortgage-backed securities (294) (45)
Collateralized Debt Obligations [Member]    
Collateralized mortgage obligations and residential mortgage-backed securities 0 0
Unrealized losses, less than 12 months 0 0
Estimated fair value, 12 months or longer 879 1,076
Unrealized losses, 12 months or longer (1,307) (1,126)
Estimated fair value, total 879 1,076
Collateralized mortgage obligations and residential mortgage-backed securities $ (1,307) $ (1,126)