| 2016 | 2015 | |||||||
| Deferred tax assets: | ||||||||
| Net operating loss carryforward | $ | 19,699,000 | $ | 18,740,000 | ||||
| Stock option expense | 481,000 | 481,000 | ||||||
| Net deferred tax asset | 20,180,000 | 19,221,000 | ||||||
| Valuation allowance | (20,180,000 | ) | (19,221,000 | ) | ||||
| $ | - | $ | - | |||||
| 2016 | 2015 | |||||||
| Income tax benefit computed at statutory rate | $ | 839,000 | $ | 1,226,000 | ||||
| State tax benefit (net of federal) | 120,000 | 175,000 | ||||||
| Permanent differences (book stock comp versus tax stock comp) | - | - | ||||||
| Increase in valuation allowance | (959,000 | ) | (1,401,000 | ) | ||||
| Provision for income taxes | $ | - | $ | - | ||||