Note 13 - Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Years Ended				Three Months Ended December 31,
	2018		2017		201 7		201 6
							(unaudited)
Net Income Per Common Share - Basic
Income (Loss) available to common stockholders	$	3,613,710	$	1,408,396	$	510,262	$	(313,706	)
Weighted Average Shares of Common Stock Outstanding		2,799,706		2,874,926		2,888,502		2,853,107
Net Income Per Common Share - Basic	$	1.29	$	0.49	$	0.18	$	(0.11	)
Effect of Dilutive Securities
Weighted Average Shares of Common Stock Outstanding - Basic		2,799,706		2,874,926		2,888,502		2,853,107
Options and warrants under convertible note		376,773		194,151		367,510		48,477
Weighted Average Shares of Common Stock Outstanding - Diluted		3,176,479		3,069,077		3,256,012		2,901,584
Net Income Per Common Share – Diluted
Income (Loss) available to common stockholders	$	3,613,710	$	1,408,396	$	510,262	$	(313,706	)
Weighted Average Shares of Common Stock Outstanding - Diluted		3,181,572		3,069,077		3,256,012		2,901,584
Net Income Per Common Share - Diluted	$	1.14	$	0.46	$	0.16	$	(0.11	)