Note 16 - Guarantees, Commitments and Contingencies (Details Textual) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Construction Management Agreement [Member]
Construction and Development Costs	$ 500,000
Guarantor Obligations, Maximum Exposure, Undiscounted	8,600,000
Development in Process, Estimated Additional Expenditures	4,000,000
Estimated Depreciation	400,000
Securities Committed to Purchase Amount	0		$ 0
Credit Losses Associated With Derivative Contracts	0	$ 0
Securities Committed to Sell Amount	$ 0		$ 0