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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2017
Income Tax Disclosure [Abstract] |
Components of provision (benefit) for income taxes | The provision for income taxes consists of the following at December 31:
($ in thousands) |  | 2017 |  | 2016 |  | 2015
Total (benefit) provision: |  | $ | (1,123 | ) |  | $ | 336 |  |  | $ | 1,125 |
Federal: |  |  |  |  |  |
Current |  | (1,266 | ) |  | (758 | ) |  | 1,521 |
Deferred |  | 380 |  |  | 1,021 |  |  | (682 | )
|  | (886 | ) |  | 263 |  |  | 839 |
State: |  |  |  |  |  |
Current |  | (120 | ) |  | (145 | ) |  | 585 |
Deferred |  | (117 | ) |  | 218 |  |  | (299 | )
|  | (237 | ) |  | 73 |  |  | 286 |
|  | $ | (1,123 | ) |  | $ | 336 |  |  | $ | 1,125 |
Reconciliation of income tax expense from statutory Federal income tax rate | A reconciliation of the provision for income taxes, with the amount computed by applying the statutory Federal income tax rate of 34% to income before provision for income taxes is as follows for the years ended December 31:
($ in thousands) |  | 2017 |  | 2016 |  | 2015
Income tax at statutory rate |  | $ | (910 | ) |  | $ | 304 |  |  | $ | 1,360 |
State income taxes, net of Federal benefit |  | (161 | ) |  | 42 |  |  | 213 |
Oil and mineral depletion |  | (180 | ) |  | (161 | ) |  | (213 | )
Permanent differences |  | 25 |  |  | 82 |  |  | (92 | )
Excess stock compensation expense |  | 107 |  |  | — |  |  | — |
Tax Reform adjustment |  | 54 |  |  | — |  |  | — |
Other |  | (58 | ) |  | 69 |  |  | (143 | )
(Benefit) provision for income taxes |  | $ | (1,123 | ) |  | $ | 336 |  |  | $ | 1,125 |
Effective tax rate |  | 42.0 | % |  | 37.6 | % |  | 28.1 | %
Components of net deferred tax assets and liabilities | Significant components of the Company’s deferred tax assets and liabilities are as follows at December 31:
($ in thousands) |  | 2017 |  | 2016
Deferred income tax assets: |  |  |  |
Accrued expenses |  | $ | 393 |  |  | $ | 561 |
Deferred revenues |  | 209 |  |  | 654 |
Capitalization of costs |  | 2,138 |  |  | 3,224 |
Pension adjustment |  | 2,996 |  |  | 4,690 |
Stock grant expense |  | 2,130 |  |  | 2,309 |
State deferred taxes |  | — |  |  | 37 |
Book deferred gains |  | 941 |  |  | 1,912 |
Joint venture allocations |  | 1,025 |  |  | 932 |
Provision for additional capitalized costs |  | 699 |  |  | 1,003 |
Interest rate swap |  | 267 |  |  | 799 |
Other |  | 423 |  |  | 41 |
Total deferred income tax assets |  | $ | 11,221 |  |  | $ | 16,162 |
Deferred income tax liabilities: |  |  |  |
Deferred gains |  | $ | 32 |  |  | $ | 51 |
Depreciation |  | 3,563 |  |  | 5,279 |
Cost of sales allocations |  | 872 |  |  | 1,252 |
Joint venture allocations |  | 3,972 |  |  | 5,389 |
Straight line rent |  | 631 |  |  | 926 |
Prepaid expenses |  | 132 |  |  | 323 |
State deferred taxes |  | 322 |  |  | 470 |
Other |  | 135 |  |  | 190 |
Total deferred income tax liabilities |  | $ | 9,659 |  |  | $ | 13,880 |
Net deferred income tax asset |  | $ | 1,562 |  |  | $ | 2,282 |
Allowance for deferred tax assets |  | — |  |  | — |
Net deferred taxes |  | $ | 1,562 |  |  | $ | 2,282 |

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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