Note 10 - Related Party Transactions (Details Textual) - Stellartech Research Corporation [Member] - USD ($)		3 Months Ended		12 Months Ended
	Oct. 04, 2007	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Stock Issued During Period, Shares, New Issues	37,500
Right to Repurchase Stock Term				4 years
Related Party Transaction, Amounts of Transaction		$ 1,215,000	$ 129,000