| 2016 | 2015 | |||||||
| Current assets | ||||||||
| Allowance for doubtful accounts-short term | $ | 4,000 | $ | 2,000 | ||||
| Warranty reserve | 36,000 | 43,000 | ||||||
| Deferred officers compensation | 395,000 | 643,000 | ||||||
| Subtotal | 435,000 | 688,000 | ||||||
| Valuation allowance | (435,000 | ) | (688,000 | ) | ||||
| Non-current assets | ||||||||
| Depreciation and amortization | $ | 135,000 | $ | 149,000 | ||||
| Net operating loss carryforward | 18,456,000 | 16,160,000 | ||||||
| Federal tax effect of state deferred tax assets | - | (117,000 | ) | |||||
| Subtotal | 18,591,000 | 16,192,000 | ||||||
| Valuation allowance | (18,591,000 | ) | (16,192,000 | ) | ||||
| | | 2016 | | | 2015 | | ||
| | | | | | | | | |
| Statutory rate | | | 34 | % | | | 34 | % |
| State income tax - all states | | | 6 | % | | | 6 | % |
| Non-deductible stock based compensation | | | 3 | % | | | - | |
43 | % | 40 | % | |||||
| Current year valuation allowance | | | (43 | %) | | | (40 | %) |
| Benefit for income taxes | | | 0 | % | | | 0 | % |