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v3.8.0.1

INCOME TAXES (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Current tax provision (benefit) |  |  |
State | $ 848 | $ 1,132 | $ 7,877
Total current provision (benefit) | 848 | 1,132 | 7,877
Deferred tax provision (benefit) |  |  |
Federal | (188,456) |  |
Total deferred tax provision (benefit) | (188,456) |  |
Total income tax provision (benefit) | (187,608) | 1,132 | $ 7,877
Tax benefits attributable to net operating losses for federal tax purposes | 24,900,000 |  |
Deferred tax assets |  |  |
Net operating loss carry forwards | 6,127,210 | 7,651,971 |
Credit for alternative minimum tax paid |  | 201,773 |
Accrued expenses and reserves | 509,666 | 1,348,032 |
Employee stock option expense | 76,150 | 117,613 |
Nonemployee stock option expense | 8,268 | 12,770 |
Inventory | 224,353 | 361,437 |
Impairment | 112,000 | 172,983 |
Deferred tax assets | 7,057,647 | 9,866,579 |
Deferred tax liabilities |  |  |
Property and equipment | (1,231,693) | (669,246) |
Deferred tax liabilities | (1,231,693) | (669,246) |
Net deferred assets | 5,825,954 | 9,197,333 |
Valuation allowance | (5,825,954) | (9,197,333) |
Increase (decrease) in valuation allowance | $ (3,371,379) | $ 1,445,361 |
Reconciliation of income taxes based on the federal statutory rate and the effective income tax rate |  |  |
Income tax at the federal statutory rate (as a percent) | 35.00% | 35.00% | 35.00%
State tax, net of federal tax (as a percent) | 2.90% | 2.90% | 2.90%
Change in valuation allowance (as a percent) | 85.90% | (39.10%) | (37.80%)
Permanent differences (as a percent) | 5.70% | 4.70% | 0.70%
Return-to-provision and other (as a percent) | (37.60%) | (3.50%) | (0.60%)
Tax Reform and Jobs Act tax rate change | (81.10%) |  |
Incentive stock options (as a percent) | (6.00%) |  |
Effective tax rate (as a percent) | 4.80% | 0.00% | 0.20%
Minimum |  |  |
Reconciliation of income taxes based on the federal statutory rate and the effective income tax rate |  |  |
State and local income tax returns, period subject to examination | 3 years |  |
Maximum |  |  |
Reconciliation of income taxes based on the federal statutory rate and the effective income tax rate |  |  |
State and local income tax returns, period subject to examination | 5 years |  |

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