Note 9 - Income Taxes (Tables)

3 Months Ended

Mar. 31, 2016

Notes Tables

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

	Three Months Ended March 31,
	2016			2015
Current:
Federal	$	(71,070	)	$	309,122
State		---			7,146
Total current provision		---			316,268
Deferred:
Federal	$	(132,620	)	$	204,659
State		----			----
Total deferred provision		(132,620	)		204,659
Income tax (benefit)/expense	$	(203,690	)	$	520,927

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

	Three Months Ended
	March 31,
	2016			2015
Income tax benefit at federal statutory rate [34%]	$	0		$	404,311
Change in capitalized inventory (Section 263A)		(8,782	)		--
Change in vacation accrual		(21,656	)		--
Change in other accruals		980			12,654
Difference between tax and book depreciation		(26,586	)		(16,298	)
Stock-based compensation		(55,642	)		(9,689	)
Research & development credits		(20,934	)		(276,329	)
Domestic production activities deduction		0			(37,145	)
Net operating loss		--			443,423
Provision for 2014 tax return true up		(71,070	)		--
Income tax (benefit)/expense	$	(203,690	)	$	520,927