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Note 7 - Investment and Equity Securities (Tables) | 9 Months Ended
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Sep. 30, 2019
Notes Tables |
Schedule of Available-for-sale Securities Reconciliation [Table Text Block] |
|  | September 30, 2019 |
|  |  |  |  |  | Gross |  |  | Gross |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
(Dollar amounts in thousands) |  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
U.S. government agency securities |  | $ | 2,000 |  |  | $ | - |  |  | $ | (1 | ) |  | $ | 1,999 |
Subordinated debt |  |  | 4,000 |  |  |  | 150 |  |  |  | - |  |  |  | 4,150 |
Obligations of states and political subdivisions: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Taxable |  |  | 500 |  |  |  | 3 |  |  |  | - |  |  |  | 503 |
Tax-exempt |  |  | 76,816 |  |  |  | 2,322 |  |  |  | - |  |  |  | 79,138 |
Mortgage-backed securities in government-sponsored entities |  |  | 19,102 |  |  |  | 267 |  |  |  | (118 | ) |  |  | 19,251 |
Total |  | $ | 102,418 |  |  | $ | 2,742 |  |  | $ | (119 | ) |  | $ | 105,041 |
|  | December 31, 2018 |
|  |  |  |  |  | Gross |  |  | Gross |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
(Dollar amounts in thousands) |  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
U.S. government agency securities |  | $ | 7,442 |  |  | $ | 90 |  |  | $ | (61 | ) |  | $ | 7,471 |
Obligations of states and political subdivisions: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Taxable |  |  | 502 |  |  |  | 10 |  |  |  | - |  |  |  | 512 |
Tax-exempt |  |  | 72,387 |  |  |  | 667 |  |  |  | (473 | ) |  |  | 72,581 |
Mortgage-backed securities in government-sponsored entities |  |  | 18,185 |  |  |  | 88 |  |  |  | (515 | ) |  |  | 17,758 |
Total |  | $ | 98,516 |  |  | $ | 855 |  |  | $ | (1,049 | ) |  | $ | 98,322 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | Amortized |  |  | Fair |
(Dollar amounts in thousands) |  | Cost |  |  | Value |
Due in one year or less |  | $ | 5,094 |  |  | $ | 5,109 |
Due after one year through five years |  |  | 1,276 |  |  |  | 1,296 |
Due after five years through ten years |  |  | 15,267 |  |  |  | 15,592 |
Due after ten years |  |  | 80,781 |  |  |  | 83,044 |
Total |  | $ | 102,418 |  |  | $ | 105,041 |
Realized Gain (Loss) on Investments [Table Text Block] |
(Dollar amounts in thousands) |  | For the Three Months Ended September 30, |  |  | For the Nine Months Ended September 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Proceeds from sales |  | $ | 518 |  |  | $ | - |  |  | $ | 12,325 |  |  | $ | - |
Gross realized gains |  |  | 4 |  |  |  | - |  |  |  | 227 |  |  |  | - |
Gross realized losses |  |  | - |  |  |  | - |  |  |  | (33 | ) |  |  | - |
Schedule of Unrealized Loss on Investments [Table Text Block] |
|  | September 30, 2019 |
|  | Less than Twelve Months |  |  | Twelve Months or Greater |  |  | Total |
|  |  |  |  |  | Gross |  |  |  |  |  |  | Gross |  |  |  |  |  |  | Gross |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
(Dollar amounts in thousands) |  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
U.S. government agency securities |  | $ | - |  |  | $ | - |  |  | $ | 1,999 |  |  | $ | (1 | ) |  | $ | 1,999 |  |  | $ | (1 | )
Mortgage-backed securities in government-sponsored entities |  |  | - |  |  |  | - |  |  |  | 9,275 |  |  |  | (118 | ) |  |  | 9,275 |  |  |  | (118 | )
Total |  | $ | - |  |  | $ | - |  |  | $ | 11,274 |  |  | $ | (119 | ) |  | $ | 11,274 |  |  | $ | (119 | )
|  | December 31, 2018 |
|  | Less than Twelve Months |  |  | Twelve Months or Greater |  |  | Total |
|  |  |  |  |  | Gross |  |  |  |  |  |  | Gross |  |  |  |  |  |  | Gross |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
(Dollar amounts in thousands) |  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
U.S. government agency securities |  | $ | - |  |  | $ | - |  |  | $ | 4,105 |  |  | $ | (61 | ) |  | $ | 4,105 |  |  | $ | (61 | )
Obligations of states and political subdivisions: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tax-exempt |  |  | 20,451 |  |  |  | (286 | ) |  |  | 11,053 |  |  |  | (187 | ) |  |  | 31,504 |  |  |  | (473 | )
Mortgage-backed securities in government-sponsored entities |  |  | 2,068 |  |  |  | (9 | ) |  |  | 12,257 |  |  |  | (506 | ) |  |  | 14,325 |  |  |  | (515 | )
Total |  | $ | 22,519 |  |  | $ | (295 | ) |  | $ | 27,415 |  |  | $ | (754 | ) |  | $ | 49,934 |  |  | $ | (1,049 | )

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