Note 8 - Income Taxes - Income Tax Reconcilliation (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Pre-tax income at statutory rate | $ 10,084 | $ 5,831 | $ 3,085 | ||||||||
| State income tax expense, net | 727 | 416 | 224 | ||||||||
| Cash surrender value income | (284) | (147) | (83) | ||||||||
| Tax-exempt interest | (295) | (168) | (65) | ||||||||
| Noncontrolling interest | (547) | (703) | (174) | ||||||||
| Merger-related expenses | 108 | 114 | 111 | ||||||||
| Change in valuation allowance | (12) | ||||||||||
| Other | (399) | 133 | 73 | ||||||||
| Total income tax expense | $ 2,600 | $ 2,639 | $ 2,072 | $ 2,083 | $ 1,667 | $ 1,453 | $ 1,264 | $ 1,092 | $ 9,394 | $ 5,476 | $ 3,159 |