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Note 4 - Loans and Allowance for Loan Losses - Activity for Troubled Debt Restructurings (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Commercial and Industrial [Member] |  |  |
Beginning Balance | $ 2,028,000 | $ 7,026,000 | $ 1,656,000
Charge-Offs | 0 | 0 | (67,000)
Payments | (555,000) | (6,648,000) | (871,000)
Transfers to ORE | 0 | 0 | (21,000)
Net Additions/Deletions | 30,000 | 1,650,000 | 6,329,000
Ending Balance | 1,503,000 | 2,028,000 | 7,026,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |
Beginning Balance | 2,086,000 | 2,680,000 | 4,501,000
Charge-Offs | 0 | 0 | 0
Payments | (598,000) | (594,000) | (4,719,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 0 | 0 | 2,898,000
Ending Balance | 1,488,000 | 2,086,000 | 2,680,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Owner Occupied Loan [Member] |  |  |
Beginning Balance | 1,400,000 | 17,160,000 | 1,816,000
Charge-Offs | 0 | (4,198,000) | (11,000)
Payments | (591,000) | (11,562,000) | (2,343,000)
Transfers to ORE | 0 | 0 | (48,000)
Net Additions/Deletions | 97,000 | 0 | 17,746,000
Ending Balance | 906,000 | 1,400,000 | 17,160,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |
Beginning Balance | 10,657,000 | 17,439,000 | 22,312,000
Charge-Offs | 0 | 0 | 0
Payments | (6,004,000) | (6,782,000) | (5,191,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 457,000 | 0 | 318,000
Ending Balance | 5,110,000 | 10,657,000 | 17,439,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Multi Family and Residentia lRental Loan [Member] |  |  |
Beginning Balance | 476,000 | 505,000 | 2,620,000
Charge-Offs | 0 | 0 | (420,000)
Payments | (30,000) | (29,000) | (1,695,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 270,000 | 0 | 0
Ending Balance | 716,000 | 476,000 | 505,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Commercial and Industrial [Member] |  |  |
Beginning Balance | 1,686,000 | 1,439,000 | 0
Charge-Offs | (48,000) | 0 | 0
Payments | (513,000) | (444,000) | (2,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 0 | 691,000 | 1,441,000
Ending Balance | 1,125,000 | 1,686,000 | 1,439,000
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 | 0
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 0 | 0 | 0
Ending Balance | 0 | 0 | 0
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Owner Occupied Loan [Member] |  |  |
Beginning Balance | 1,652,000 | 1,569,000 | 0
Charge-Offs | 0 | (31,000) | 0
Payments | (1,514,000) | (590,000) | 0
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 762,000 | 704,000 | 1,569,000
Ending Balance | 900,000 | 1,652,000 | 1,569,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |
Beginning Balance | 647,000 | 64,000 | 0
Charge-Offs | 0 | 0 | 0
Payments | (110,000) | (9,000) | 0
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 191,000 | 592,000 | 64,000
Ending Balance | 728,000 | 647,000 | 64,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Multi Family and Residentia lRental Loan [Member] |  |  |
Beginning Balance | 331,000 | 381,000 | 0
Charge-Offs | 0 | (42,000) | 0
Payments | (278,000) | (342,000) | (18,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 7,000 | 334,000 | 399,000
Ending Balance | 60,000 | 331,000 | 381,000
Retail Portfolio Segment [Member] | Originated Loan [Member] | Home Equity and Other [Member] |  |  |
Beginning Balance | 146,000 | 0 | 0
Charge-Offs | 0 | 0 | 0
Payments | (1,000) | 0 | 0
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 240,000 | 146,000 | 0
Ending Balance | 385,000 | 146,000 | 0
Retail Portfolio Segment [Member] | Originated Loan [Member] | One to Four Family Mortgages [Member] |  |  |
Beginning Balance | 128,000 | 1,967,000 | 1,987,000
Charge-Offs | 0 | (148,000) | 0
Payments | (11,000) | (1,691,000) | (224,000)
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 40,000 | 0 | 204,000
Ending Balance | 157,000 | 128,000 | 1,967,000
Retail Portfolio Segment [Member] | Acquired Loan [Member] | Home Equity and Other [Member] |  |  |
Beginning Balance | 141,000 | 26,000 | 0
Charge-Offs | 0 | 0 | 0
Payments | (30,000) | (39,000) | 0
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 97,000 | 154,000 | 26,000
Ending Balance | 208,000 | 141,000 | 26,000
Retail Portfolio Segment [Member] | Acquired Loan [Member] | One to Four Family Mortgages [Member] |  |  |
Beginning Balance | 316,000 | 178,000 | 0
Charge-Offs | 0 | 0 | 0
Payments | (9,000) | (3,000) | 0
Transfers to ORE | 0 | 0 | 0
Net Additions/Deletions | 19,000 | 141,000 | 178,000
Ending Balance | $ 326,000 | $ 316,000 | $ 178,000

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