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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2018
Income Tax Disclosure [Abstract] |
Schedule of Significant Components Deferred Tax Liabilities | Significant components of the Company's deferred tax liabilities and assets are as follows at the respective year ends:
| 2018 |  | 2017
Deferred income tax assets: |  |  |
Sale leaseback deferred gain | $ | 1,310,850 |  |  | $ | 1,382,270 |
Inventory valuation reserves | 174,377 |  |  | 209,745 |
Allowance for doubtful accounts | 35,955 |  |  | 7,944 |
Inventory capitalization | 1,500,710 |  |  | 943,203 |
Environmental reserves | — |  |  | 124,029 |
Warranty accrual | 8,084 |  |  | 8,132 |
Deferred compensation | 28,090 |  |  | 36,617 |
Accrued bonus | 910,824 |  |  | 483,238 |
Accrued expenses | 22,957 |  |  | 24,749 |
State net operating loss carryforwards | 1,934,071 |  |  | 2,069,258 |
Equity security mark to market | 622,189 |  |  | 3,248 |
Straight line lease | 230,841 |  |  | 123,570 |
Other | 507,997 |  |  | 352,520 |
Total deferred income tax assets | 7,286,945 |  |  | 5,768,523 |
Valuation allowance | (1,765,993 | ) |  | (2,087,860 | )
Total net deferred income tax assets | 5,520,952 |  |  | 3,680,663 |
Deferred income tax liabilities: |  |  |
Tax over book depreciation and amortization | 5,120,533 |  |  | 3,971,816 |
Prepaid expenses | 377,498 |  |  | 174,322 |
Interest rate swap | 103,708 |  |  | 87,016 |
Other | 172,201 |  |  | 83,419 |
Total deferred income tax liabilities | 5,773,940 |  |  | 4,316,573 |
Deferred income taxes | $ | (252,988 | ) |  | $ | (635,910 | )
Schedule of Components of Provision for Income Taxes | Significant components of the provision for income taxes from continuing operations are as follows:
| 2018 |  | 2017 |  | 2016
Current: |  |  |  |  |
Federal | $ | 3,468,673 |  |  | $ | 1,067,490 |  |  | $ | (980,495 | )
State | 290,459 |  |  | 106,832 |  |  | 190,230 |
Total current | 3,759,132 |  |  | 1,174,322 |  |  | (790,265 | )
Deferred: |  |  |  |  |  |  |  |
Federal | (107,879 | ) |  | (1,043,384 | ) |  | (1,329,302 | )
State | (275,043 | ) |  | 6,201 |  |  | (78,433 | )
Total deferred | (382,922 | ) |  | (1,037,183 | ) |  | (1,407,735 | )
Total | $ | 3,376,210 |  |  | $ | 137,139 |  |  | $ | (2,198,000 | )
Reconciliation of Income Taxes Computed at U.S. Rate to Income Tax Expense | The reconciliation of income tax computed at the U. S. federal statutory tax rates to income tax expense is:
| 2018 |  | 2017 |  | 2016
Amount |  | % |  | Amount |  | % |  | Amount |  | %
Tax at U.S. statutory rates | $ | 3,459,464 |  |  | 21.0 | % |  | $ | 502,690 |  |  | 34.0 | % |  | $ | (3,125,382 | ) |  | 34.0 | %
State income taxes, net of federal tax benefit | 268,924 |  |  | 1.6 | % |  | 65,546 |  |  | 4.4 | % |  | (48,842 | ) |  | 0.5 | %
State valuation allowance | (314,505 | ) |  | (1.9 | )% |  | 8,498 |  |  | 0.6 | % |  | 95,961 |  |  | (1.0 | )%
Life insurance cash surrender value | — |  |  | — | % |  | — |  |  | — | % |  | 503,700 |  |  | (5.5 | )%
Manufacturing exemption | — |  |  | — | % |  | (116,980 | ) |  | (7.9 | )% |  | — |  |  | — | %
Stock option compensation | (39,401 | ) |  | (0.2 | )% |  | 226 |  |  | — | % |  | 45,929 |  |  | (0.5 | )%
Rate change effects | — |  |  | — | % |  | (380,961 | ) |  | (25.8 | )% |  | — |  |  | — | %
Other, net | 1,728 |  |  | — | % |  | 58,120 |  |  | 4.0 | % |  | 330,634 |  |  | (3.6 | )%
Total | $ | 3,376,210 |  |  | 20.5 | % |  | $ | 137,139 |  |  | 9.3 | % |  | $ | (2,198,000 | ) |  | 23.9 | %

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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://fasb.org/us-gaap/role/ref/legacyRef -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://fasb.org/us-gaap/role/ref/legacyRef -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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