Note 14 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	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	)

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	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	)

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	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-