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Income Taxes | 12 Months Ended
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Dec. 31, 2018
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes The components of income tax expense for the years ended December 31 are summarized as follows:
(in thousands) | 2018 |  | 2017 |  | 2016
Current: |  |  |  |  |
Federal | $ | 9,156 |  |  | $ | 9,163 |  |  | $ | 5,745 |
State | 128 |  |  | 71 |  |  | 81 |
Total current | 9,284 |  |  | 9,234 |  |  | 5,826 |
Deferred: |  |  |  |  |
Federal | (4,064 | ) |  | (4,649 | ) |  | 2,756 |
State | (10 | ) |  | (15 | ) |  | 34 |
Total deferred | (4,074 | ) |  | (4,664 | ) |  | 2,790 |
Total | $ | 5,210 |  |  | $ | 4,570 |  |  | $ | 8,616 |
For state income tax purposes, ITIC and NITIC generally pay only a gross premium tax found in premium and retaliatory taxes in the Consolidated Statements of Income. On December 22, 2017, the TCJA, was enacted into law. The new tax legislation, among other changes, reduced the federal corporate income tax rate from 35% to 21%, effective January 1, 2018. As required under generally accepted accounting principles, the Company’s deferred tax assets and liabilities were revalued at the newly enacted U.S. corporate income tax rate. The impact was recognized in the Company’s provision for income taxes in the fourth quarter of 2017. The revaluation resulted in a benefit of approximately $5.3 million, or $2.82 per diluted share. At December 31, the approximate tax effect of each component of deferred income tax assets and liabilities is summarized as follows:
(in thousands) | 2018 |  | 2017
Deferred income tax assets: |  |  |
Accrued benefits and retirement services | $ | 2,758 |  |  | $ | 2,449 |
Other-than-temporary impairment of assets | 198 |  |  | 265 |
Allowance for doubtful accounts | 82 |  |  | 102 |
Net operating loss carryforward | 28 |  |  | 33 |
Reinsurance and commission payable | 13 |  |  | — |
Postretirement benefit obligation | 8 |  |  | 18 |
Other | 359 |  |  | 878 |
Total | 3,446 |  |  | 3,745 |
Deferred income tax liabilities: |  |  |
Net unrealized gain on investments | 3,924 |  |  | 5,193 |
Intangible assets | 1,250 |  |  | 1,338 |
Excess of tax over book depreciation | 1,104 |  |  | 1,042 |
Recorded reserve for claims, net of statutory premium reserves | 599 |  |  | 4,126 |
Other | 753 |  |  | 672 |
Total | 7,630 |  |  | 12,371 |
Net deferred income tax liabilities | $ | (4,184 | ) |  | $ | (8,626 | )
At December 31, 2018 and 2017, no valuation allowance was recorded. Based upon the Company’s historical results of operations, the existing financial condition of the Company and management’s assessment of all other available information, management believes that it is more likely than not that the benefit of these deferred income tax assets will be realized. As computed for the years ended December 31 at the U.S. federal statutory income tax rate of 21.0% for 2018, 35.0% for 2017 and 34.6% for 2016, respectively, to income tax expense follows:
(in thousands) | 2018 |  | 2017 |  | 2016
Anticipated income tax expense | $ | 5,684 |  |  | $ | 10,595 |  |  | $ | 9,734 |
Increase (decrease) related to: |  |  |  |  |
State income taxes, net of federal income tax benefit | 101 |  |  | 46 |  |  | 53 |
Tax-exempt interest income, net of amortization | (1,026 | ) |  | (1,298 | ) |  | (1,075 | )
Tax Cuts and Jobs Act | — |  |  | (5,342 | ) |  | — |
Other, net | 451 |  |  | 569 |  |  | (96 | )
Provision for income taxes | $ | 5,210 |  |  | $ | 4,570 |  |  | $ | 8,616 |
In accounting for uncertainty in income taxes, the Company is required to recognize in its financial statements the impact of a tax position if that position is more likely than not of being sustained on an audit, based on the technical merits of the position. In this regard, an uncertain tax position represents the Company’s expected treatment of a tax position taken in a filed tax return, or planned to be taken in a future tax return, that has not been reflected in measuring income tax expense for financial reporting purposes. There were no unrecognized tax benefits or liabilities as of December 31, 2018. The amount of unrecognized tax benefit or liability may increase or decrease in the future for various reasons, including adding amounts for current tax year positions, expiration of open income tax returns due to the expiration of the applicable statute of limitations, changes in management’s judgment about the level of uncertainty, status of examinations, litigation and legislative activity and the additions or eliminations of uncertain tax positions. The Company’s policy is to report interest and penalties related to income taxes in the other line item in the Consolidated Statements of Income. The Company, or one of its subsidiaries, files income tax returns in the U.S. federal jurisdiction and various states. With few exceptions, the Company is no longer subject to U.S. federal or state and local examinations by taxing authorities for years before 2015.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 + Details
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