Note 16 - Commitments - Allocation of Retention Bonus (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Distributions paid	$ 304,052	$ 1,254,248
Board of Directors Chairman [Member]
Distributions paid	197,633	815,262
Chief Operating Officer [Member]
Distributions paid	46,863	133,786
Former President and CEO [Member]
Distributions paid		133,786
President and Chief Executive Officer and Chief Financial Officer [Member]
Distributions paid	50,898	133,786
Other Employees [Member]
Distributions paid	$ 8,658	$ 37,628