Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2018 |
Dec. 31, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2016 |
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| Income Tax Disclosure [Abstract] | |||||||||||||
| Federal statutory rate | 21.00% | 34.00% | 28.06% | 34.00% | 34.00% | ||||||||
| Tax at federal statutory rate | $ 3,262 | $ 1,529 | $ 1,380 | ||||||||||
| State Taxes, net of federal benefit | 24 | ||||||||||||
| Tax-exempt income | (61) | (47) | (49) | ||||||||||
| BOLI income | (157) | (211) | (156) | ||||||||||
| ESOP Compensation | 300 | 63 | |||||||||||
| Deferred tax re-remeasurement charge | 1,570 | ||||||||||||
| Other, net | 84 | (68) | (42) | ||||||||||
| Total | $ 1,075 | $ 591 | $ 2,551 | $ 805 | $ (1,017) | $ 878 | $ 758 | $ 647 | $ 5,022 | $ 1,266 | $ 1,133 | ||
| Effective tax rate | 43.20% | 28.16% | 27.91% | ||||||||||
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- Definition Income tax reconciliation bank owned life insurance income. No definition available.
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- Definition Income tax reconciliation nondeductible expense deferred tax re-remeasurement charge amount. No definition available.
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- Definition Income tax reconciliation nondeductible expense employee stock ownership plan compensation amount. No definition available.
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income (loss) exempt from income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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