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Note 9 - Other Intangible Assets | 12 Months Ended
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Dec. 31, 2018
Notes to Financial Statements |
Intangible Assets Disclosure [Text Block] | ( 9 ) Other Intangible Assets The following is an analysis of the core deposit intangible activity for the years ended December 31:
|  | Core Deposit Intangible |  |  | Accumulated Amortization |  |  | Net Core Deposit Intangible |
Core Deposit Intangible |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2016 |  | $ | 1,056,693 |  |  | $ | (976,178 | ) |  | $ | 80,515 |
Amortization Expense |  |  | - |  |  |  | (35,749 | ) |  |  | (35,749 | )
Balance, December 31, 2017 |  | $ | 1,056,693 |  |  | $ | (1,011,927 | ) |  | $ | 44,766 |
Addition |  |  | 560,000 |  |  |  | - |  |  |  | 560,000 |
Amortization Expense |  |  | - |  |  |  | (48,193 | ) |  |  | (48,193 | )
Balance, December 31, 201 8 |  | $ | 1,616,693 |  |  | $ | (1,060,120 | ) |  | $ | 556,573 |
Amortization expense related to the core deposit intangible was $48,193, $35,749 and $35,749 for the years ended December 31, 2018, 2017 and 2016. The estimated future amortization expense for intangible assets remaining as of December 31, 2018 is as follows:
Year Ending December 31 |  | Amount |
2019 |  | $ | 83,684 |
2020 |  |  | 74,667 |
2021 |  |  | 74,667 |
2022 |  |  | 74,667 |
2023 |  |  | 74,667 |
Thereafter |  |  | 174,221 |
|  | $ | 556,573 |

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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