| December 31, 2016 | December 31, 2015 | |||||||
| Federal statutory rate applied to income/(loss) before income taxes | $ | 38,740 | $ | 963,947 | ||||
| Increase/(decrease) in income taxes results from: | ||||||||
| Current tax expense/(benefit) | 1,069 | (24,739 | ) | |||||
| Nondeductible expenses | 1,078,519 | (1,451,221 | ) | |||||
| Change in deferred assets | 41,019 | 97,580 | ||||||
| Change in valuation allowance | (1,158,278 | ) | 389,694 | |||||
| Income tax expense/(benefit) | $ | 1,069 | $ | (24,739 | ) | |||
| December 31, 2016 | December 31, 2015 | |||||||
| Current tax expense/(benefit): | $ | 1,069 | $ | (24,739 | ) | |||
| Deferred tax expense/(benefit): | ||||||||
| Bad debt allowance | (23,699 | ) | 26,059 | |||||
| Operating loss carryforward | 1,140,957 | (513,333 | ) | |||||
| Amortization of intangibles | 5,482 | 5,482 | ||||||
| Patent litigation settlement | 35,538 | 92,098 | ||||||
1,159,347 | (414,433 | ) | ||||||
| Valuation allowance | (1,158,278 | ) | 389,694 | |||||
| Total tax expense/(benefit) | $ | 1,069 | $ | (24,739 | ) | |||
| December 31, 2016 | December 31, 2015 | |||||||
| Amortization of intangibles | $ | 267,253 | $ | 272,734 | ||||
| Bad debt allowance | 66,662 | 42,963 | ||||||
| Patent litigation liability accrual | 128,804 | 164,342 | ||||||
| Operating loss carryforwards | 19,034,573 | 20,175,531 | ||||||
| Gross deferred tax assets | 19,497,292 | 20,655,570 | ||||||
| Valuation allowance | (19,497,292 | ) | (20,655,570 | ) | ||||
| Net deferred tax liability/(asset) | $ | -0- | $ | -0- | ||||