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Note 4 - Loans and Allowance for Loan Losses - Activity for Troubled Debt Restructurings (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Commercial and Industrial [Member] |  |  |
Beginning Balance | $ 13,590,000 | $ 2,989,000 | $ 1,503,000
Charge-Offs | 0 | (230,000) | 0
Payments | (20,244,000) | (692,000) | (2,021,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 14,812,000 | 11,523,000 | 3,507,000
Ending Balance | 8,158,000 | 13,590,000 | 2,989,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |
Beginning Balance | 0 | 383,000 | 1,488,000
Charge-Offs | 0 | 0 | 0
Payments | (2,000) | (383,000) | (1,105,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 87,000 | 0 | 0
Ending Balance | 85,000 | 0 | 383,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Owner Occupied Loan [Member] |  |  |
Beginning Balance | 2,682,000 | 1,599,000 | 906,000
Charge-Offs | 0 | 0 | 0
Payments | (2,947,000) | (4,999,000) | (242,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 1,250,000 | 6,082,000 | 935,000
Ending Balance | 985,000 | 2,682,000 | 1,599,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |
Beginning Balance | 0 | 0 | 5,110,000
Charge-Offs | 0 | 0 | 0
Payments | 0 | 0 | (232,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 0 | 0 | (4,878,000)
Ending Balance | 0 | 0 | 0
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |
Beginning Balance | 0 | 0 | 716,000
Charge-Offs | 0 | 0 | 0
Payments | 0 | 0 | (405,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 0 | 0 | (311,000)
Ending Balance | 0 | 0 | 0
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Commercial and Industrial [Member] |  |  |
Beginning Balance | 548,000 | 1,001,000 | 1,125,000
Charge-Offs | 0 | (275,000) | 0
Payments | (120,000) | (100,000) | (550,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 1,000 | (78,000) | 426,000
Ending Balance | 429,000 | 548,000 | 1,001,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |
Beginning Balance | 0 | 0 | 0
Charge-Offs | 0 | 0 | 0
Payments | 0 | 0 | (33,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 0 | 0 | 33,000
Ending Balance | 0 | 0 | 0
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Owner Occupied Loan [Member] |  |  |
Beginning Balance | 418,000 | 427,000 | 900,000
Charge-Offs | 0 | 0 | (249,000)
Payments | (873,000) | (1,664,000) | (257,000)
Transfers to ORE | (97,000) | (93,000) | 0
Net Additions/Deletions | 712,000 | 1,748,000 | 33,000
Ending Balance | 160,000 | 418,000 | 427,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |
Beginning Balance | 210,000 | 237,000 | 728,000
Charge-Offs | 0 | 0 | 0
Payments | (32,000) | (27,000) | (922,000)
Transfers to ORE | 0 | 0 | (291,000)
Net Additions/Deletions | 0 | 0 | 722,000
Ending Balance | 178,000 | 210,000 | 237,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |
Beginning Balance | 24,000 | 41,000 | 60,000
Charge-Offs | 0 | 0 | 0
Payments | (17,000) | (17,000) | (1,084,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 0 | 0 | 1,065,000
Ending Balance | 7,000 | 24,000 | 41,000
Retail Portfolio Segment [Member] | Originated Loan [Member] | Home Equity and Other [Member] |  |  |
Beginning Balance | 938,000 | 1,127,000 | 385,000
Charge-Offs | 0 | 0 | 0
Payments | (114,000) | (251,000) | (57,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 50,000 | 62,000 | 799,000
Ending Balance | 874,000 | 938,000 | 1,127,000
Retail Portfolio Segment [Member] | Originated Loan [Member] | One to Four Family Mortgages [Member] |  |  |
Beginning Balance | 142,000 | 146,000 | 157,000
Charge-Offs | 0 | 0 | 0
Payments | (110,000) | (4,000) | (11,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 0 | 0 | 0
Ending Balance | 32,000 | 142,000 | 146,000
Retail Portfolio Segment [Member] | Acquired Loan [Member] | Home Equity and Other [Member] |  |  |
Beginning Balance | 464,000 | 219,000 | 208,000
Charge-Offs | (18,000) | (30,000) | (25,000)
Payments | (158,000) | (72,000) | (121,000)
Transfers to ORE | 0 | (82,000) | 0
Net Additions/Deletions | 253,000 | 429,000 | 157,000
Ending Balance | 541,000 | 464,000 | 219,000
Retail Portfolio Segment [Member] | Acquired Loan [Member] | One to Four Family Mortgages [Member] |  |  |
Beginning Balance | 436,000 | 393,000 | 326,000
Charge-Offs | 0 | 0 | 0
Payments | (52,000) | (37,000) | (188,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 308,000 | 80,000 | 255,000
Ending Balance | $ 692,000 | $ 436,000 | $ 393,000

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