Note 2 - Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Disaggregation of Revenue [Table Text Block]

	2018		2017		2016
RETAIL (end users, consumers, individuals)		61%		59%		56%
NON-RETAIL (hospitals, organizations, distributors, and businesses)		39%		41%		44%
		100%		100%		100%

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

	201 8		201 7		201 6
BASIC
Net income	$	1,963,828	$	4,451,751	$	6,402,259
Weighted average common shares outstanding		9,185,203		9,242,092		9,301,867
Earnings per share – basic	$	0.21	$	0.48	$	0.69
DILUTED
Net income	$	1,963,828	$	4,451,751	$	6,402,259
Weighted average common shares outstanding		9,185,203		9,242,092		9,301,867
Effect of restricted stock awards and assumed exercise of stock options		459		14,718		19,691
Weighted average common shares outstanding, assuming dilution		9,185,662		9,256,810		9,321,558
Earnings per share - diluted	$	0.21	$	0.48	$	0.69
Outstanding options and restricted stock awards excluded as anti-dilutive		657,717		17,632		31,477

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	As of December 31, 201 8
	Gross		Accumulated Amortization		Net
Trademarks, Copyrights	$	554,369	$	546,702	$	7,667
Non-Compete Agreements		175,316		166,483		8,833
	$	729,685	$	713,185	$	16,500

	As of December 31, 201 7
	Gross		Accumulated Amortization		Net
Trademarks, Copyrights	$	554,369	$	545,897	$	8,472
Non-Compete Agreements		175,316		164,566		10,750
	$	729,685	$	710,463	$	19,222