Note 9 - Income Taxes - Components of Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Current:
Federal			$ 758,297	$ (71,070)
State			11,580
Total Current Provision			769,877	(71,070)
Deferred:
Federal			488,038	(632,992)
State
Total deferred			488,038	(632,992)
Income tax expense/(benefit)	$ 573,783	$ (500,372)	$ 1,257,915	$ (704,062)