Note 8 - Investment in Macrophage Therapeutics, Inc. (Details Textual) - USD ($)	1 Months Ended				6 Months Ended
	Jan. 31, 2017	May 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Jun. 30, 2017
Reclassification of Funds Invested	$ 200,000				$ 200,000
MT [Member]
Convertible Preferred Stock, Conversion Price, Market Cap		$ 500,000,000
Convertible Preferred Stock, PIK Coupon, Percentage		10.00%
MT [Member] \| Chief Executive Officer [Member]
Payments to Acquire Businesses and Interest in Affiliates				$ 200,000
MT [Member] \| Platinum [Member]
Payments to Acquire Businesses and Interest in Affiliates		$ 200,000	$ 200,000	$ 300,000