Note 9 - Effective Income Tax Rate Reconcilliation (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 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