Note 9 - Income Taxes - Components of Income Taxes (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Current:
Federal	$ 383,178	$ (71,070)
State	9,780
Total current provision	392,958	(71,070)
Deferred:
Federal	291,174	(132,620)
State
Total deferred provision	291,174	(132,620)
Income tax expense/(benefit)	$ 684,132	$ (203,690)