Note 18 - Income Taxes (Tables)
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12 Months Ended |
Dec. 31, 2016 |
| Notes Tables |
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| Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
| | | | | | | | | | | | | | | | | | | | | | Loan and lease loss reserve | | $ | 6,492 | | | $ | 5,872 | | | | | | 3,611 | | | | 5,509 | | Net operating loss carry-forward | | | 471 | | | | 927 | | Alternative minimum tax credits | | | 567 | | | | 567 | | Unrealized depreciation of available for sale securities | | | 663 | | | | — | | | | | | 2,068 | | | | 1,851 | | | | | | 13,872 | | | | 14,726 | | Deferred tax liabilities: | | | | | | | | | | | | | 52 | | | | 461 | | | | | | 1,969 | | | | 1,800 | | Amortizing fair value adjustments | | | 1,336 | | | | 911 | | Unrealized appreciation of available for sale securities | | | — | | | | 417 | | Total deferred tax liability | | | 3,357 | | | | 3,589 | | Total net deferred tax asset | | $ | 10,515 | | | $ | 11,137 | |
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| Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
| | | | | | | | | | | | | | $ | 16,492 | | | $ | 12,006 | | | $ | 12,655 | | | | | | 1,676 | | | | (2,834 | | | | 2,350 | | | | | $ | 18,168 | | | $ | 9,172 | | | $ | 15,005 | |
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| Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
| | | | | | | | | | | | | | | | | | | | Computed tax expense at statutory federal rate | | $ | 18,972 | | | | 35.0 | | | $ | 9,074 | | | | 35.0 | | | $ | 14,997 | | | | 35.0 | | | | | | (758 | | | | (1.4 | | | | (622 | | | | (2.4 | | | | (401 | | | | (0.9 | | State tax (net of federal tax benefit) | | | 425 | | | | 0.8 | | | | 299 | | | | 1.2 | | | | 215 | | | | 0.5 | | Non-deductible merger expense | | | — | | | | — | | | | 105 | | | | 0.4 | | | | 105 | | | | 0.2 | | Excess tax benefit – stock based compensation | | | (565 | | | | (1.0 | | | | — | | | | — | | | | — | | | | — | | | | | | 94 | | | | 0.1 | | | | 316 | | | | 1.2 | | | | 89 | | | | 0.2 | | | | | $ | 18,168 | | | | 33.5 | | | $ | 9,172 | | | | 35.4 | | | $ | 15,005 | | | | 35.0 | |
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