| 201 7 | 201 6 | 201 5 | ||||||||||
| Current provision: | ||||||||||||
| Federal | $ | 3,090,997 | $ | 3,108,894 | $ | 3,045,292 | ||||||
| State | 309,249 | 486,565 | 482,186 | |||||||||
3,400,246 | 3,595,459 | 3,527,478 | ||||||||||
| Deferred provision (benefit): | ||||||||||||
| Federal | (665,181 | ) | 183,520 | 212,563 | ||||||||
| State | (23,692 | ) | 21,591 | 76,607 | ||||||||
(688,873 | ) | 205,111 | 289,170 | |||||||||
| $ | 2,711,373 | $ | 3,800,570 | $ | 3,816,648 | |||||||
| Transition tax on deemed repatriation of certain foreign earnings* | $ | 514,454 | ||
| Foreign Withholding Taxes * | 290,128 | |||
| Remeasuring deferred tax position at the lowered income tax rate** | (463,800 | ) | ||
| $ | 340,782 |
| 201 7 | 201 6 | 201 5 | ||||||||||
| United States | $ | 6,372,585 | $ | 9,070,894 | $ | 9,272,854 | ||||||
| United Kingdom | (171,608 | ) | (81,987 | ) | (43,567 | ) | ||||||
| Canada | 1,055,783 | 1,034,027 | 813,824 | |||||||||
| Australia | (88,096 | ) | 82,622 | 48,633 | ||||||||
| Spain | (5,540 | ) | 97,273 | 127,309 | ||||||||
| $ | 7,163,124 | $ | 10,202,829 | $ | 10,219,053 | |||||||
| 201 7 | 201 6 | |||||||
| Deferred income tax assets: | ||||||||
| Capitalized inventory costs | $ | 198,616 | $ | 265,454 | ||||
| Warrants and share-based compensation | 29,047 | 44,151 | ||||||
| Accrued expenses, reserves, and other | 44,075 | 65,631 | ||||||
| Total deferred income tax assets | $ | 271,738 | $ | 375,236 | ||||
| Deferred income tax liabilities: | ||||||||
| Property and equipment depreciation | $ | 1,008,485 | $ | 1,728,265 | ||||
| Goodwill and other intangible assets amortization | 155,175 | 227,767 | ||||||
| Transition tax on deemed repatriation of foreign earnings | 473,298 | - | ||||||
| Total deferred income tax liabilities | $ | 1,636,958 | $ | 1,956,032 | ||||
| 201 7 | 201 6 | 201 5 | ||||||||||
| Statutory rate – Federal US income tax | 34 | % | 34 | % | 34 | % | ||||||
| State and local taxes | 6 | % | 6 | % | 6 | % | ||||||
| Impact of Tax Act | 4 | % | - | - | ||||||||
| Non-U.S. income tax at different rates | (1 | %) | - | - | ||||||||
| Domestic production activities deduction | (2 | %) | (1 | %) | (1 | %) | ||||||
| Other, net | (3 | %) | (2 | %) | (2 | %) | ||||||
| Effective rate | 38 | % | 37 | % | 37 | % | ||||||