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Note 9 - Effective Income Tax Rate Reconcilliation (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income tax benefit at federal statutory rate [34%]			$ (353,981)	$ 913,700
Change in other accruals			(50,866)	23,175
Difference between tax and book depreciation			(53,112)	(12,975)
Stock-based compensation			(117,727)	(28,120)
Research and development credits			(57,306)	(571,583)
Domestic production activities deduction				(83,411)
Net operating loss carryforward				954,581
Tax carryback				(511,158)
Provision for 2014 tax return true up			(71,070)
Income tax expense/(benefit)	$ (500,372)	$ 163,282	$ (704,062)	$ 684,209

X

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to operating loss carryforward.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in other accruals.

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