Note 9 - Income Taxes (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

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

	Six Months Ended June 30,
	2018		2017
Current:
Federal	$	48,330	$	758,297
State		3,500		11,580
Total Current Provision		51,830		769,877
Deferred:
Federal	$	56,888	$	488,038
State		----		----
Total deferred		56,888		488,038
Income tax expense	$	108,718	$	1,257,915

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

	Six Months Ended
	June 30,
	2018			2017
Income tax (benefit)/expense at federal statutory rate [21%-2018; 34%-2017]	$	(79,430	)	$	1,361,450
State taxes		3,500			7,643
Change in other accruals		4,769			101
Difference between tax and book depreciation		39,827			91,033
Stock-based compensation		140,052			(58,334	)
Domestic production activities deduction		---			(137,178	)
Net operating loss carryforward		---			(6,800	)
		--		---
Income tax expense	$	108,718		$	1,257,915