| Year Ended March 31 | ||||||||
| 201 7 | 2016 | |||||||
| Federal | ||||||||
| Current | $ | (714,684 | ) | $ | 274,947 | |||
| Deferred | (644,865 | ) | (221,144 | ) | ||||
(1,359,549 | ) | 53,803 | ||||||
| State | ||||||||
| Current | — | 50,878 | ||||||
| Deferred | (112,583 | ) | — | |||||
(112,583 | ) | 50,878 | ||||||
| Total | $ | (1,472,132 | ) | $ | 104,681 | |||
| Year Ended March 31 | ||||||||
| 2017 | 2016 | |||||||
| Income tax expense (benefit) at U.S. federal statutory rate | (34.0% | ) | 34.0 | % | ||||
| Benefit of tax deduction allowed to manufacturing companies | — | (6.6 | ) | |||||
| Current year state and local income taxes net of federal income tax benefit | (1.7 | ) | 8.4 | |||||
| Other | 0.2 | (9.5 | ) | |||||
| Provision for (benefit from) income taxes | (35.5% | ) | 26.3 | % | ||||
| March 31 | ||||||||
| 201 7 | 2016 | |||||||
| Deferred tax liabilities: | ||||||||
| Depreciation | $ | (507,970 | ) | $ | (871,665 | ) | ||
| Total deferred tax liabilities | (507,970 | ) | (871,665 | ) | ||||
| Deferred tax assets: | ||||||||
| Inventory capitalization | 166,979 | 179,956 | ||||||
| LIFO Inventory | 783,645 | 783,645 | ||||||
| Postretirement benefits other than pensions | 187,096 | 267,104 | ||||||
| Net operating loss carryforward - Federal | 343,729 | — | ||||||
| Net operating loss carryforward - State | 112,583 | — | ||||||
| Other | 79,888 | 49,462 | ||||||
| Total deferred tax assets | 1,673,920 | 1,280,167 | ||||||
| Net deferred tax asset | $ | 1,165,950 | $ | 408,502 | ||||