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Income Taxes (Details 1) - USD ($) | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Deferred tax assets (liabilities): |  |
Inventories | $ 104,190 | $ 103,909
Stock options and other | 93,985 | 88,303
Alternative Minimum Tax credit carryforward | 24,674 | 24,674
Contingencies and accruals | 152,846 | 157,936
Property and equipment | (214,383) | (454,788)
Net operating loss carryforward | 12,174,859 | 11,136,538
Goodwill and intangibles | 0 | (4,687)
Total deferred tax assets, net | 12,336,171 | 11,051,886
Valuation allowance | $ (12,336,171) | $ (11,051,886)

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