Note 9 - Taxes - Pro Forma Income Tax Provision (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ 1,474,467	$ 631,487
State	373,871	117,633
Current income tax provision	1,848,338	749,120
Deferred:
Federal	520,163	(104,771)
State	121,754	(21,083)
Deferred income tax provision	641,917	(125,854)
Total income tax provision	$ 2,490,255	623,266
Pro Forma [Member]
Current:
Federal		3,677,489
State		478,675
Current income tax provision		4,156,164
Deferred:
Federal		(73,805)
State		(19,236)
Deferred income tax provision		(93,041)
Total income tax provision		$ 4,063,123