Note 14 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

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

	December 31, 2018			December 31, 2017
Federal statutory rate applied to income/(loss) before income taxes	$	1,058,960		$	1,117,014
Increase/(decrease) in income taxes results from:
Current tax expense/(benefit)		490,215			1,194
Nondeductible expenses		(582,309	)		(44,845	)
Change in deferred assets		18,354			(35,423	)
Change in valuation allowance		(495,005	)		(1,036,746	)
Income tax expense/(benefit)	$	490,215		$	1,194

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

	December 31, 2018			December 31, 2017
Current tax expense/(benefit):	$	490,215		$	1,194
Deferred tax expense/(benefit):
Bad debt allowance		(6,651	)		11,226
Operating loss carryforward		483,302			1,060,942
Amortization of intangibles		18,354			5,482
Patent litigation settlement		-0-			(40,904	)
		985,220			1,037,940
Valuation allowance		(495,005	)		(1,036,746	)
Total tax expense/(benefit)	$	490,215		$	1,194

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

	December 31, 2018			December 31, 2017
Amortization of intangibles	$	253,466		$	261,771
Bad debt allowance		68,133			55,436
Patent litigation liability accrual		359,377			169,709
Impact of the Tax Cuts and Jobs Act		-0-			(1,699,440	)
Operating loss carryforwards		15,585,125			17,973,631
Gross deferred tax assets		16,266,101			16,761,107
Valuation allowance		(16,266,101	)		(16,761,107	)
Net deferred tax liability/(asset)	$	-0-		$	-0-