Note 9 - Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three months ended				Nine months ended
	September 30				September 30
	2019		2018		2019		2018
Net sales by product category
Nutritional and dietary supplements	$	8,072,320	$	7,514,349	$	23,854,568	$	24,190,379
Sales aids, membership fees, and other		323,621		303,177		955,411		939,124
Freight income		521,192		519,519		1,521,014		1,670,522
Other revenue		231,732		-		564,389		-
Total net sales	$	9,148,865	$	8,337,045	$	26,895,382	$	26,800,025

Revenue from External Customers by Geographic Areas [Table Text Block]

	Three months ended				Nine months ended
	September 30				September 30
	2019		2018		2019		2018
Net sales by geographic region
United States	$	6,842,640	$	6,498,778	$	19,859,018	$	20,505,226
Australia/New Zealand		135,123		155,663		444,500		565,126
Canada		139,991		153,189		479,418		556,866
Mexico		155,847		127,859		444,442		347,641
Europe (1)		727,038		807,097		2,421,971		3,002,528
Asia (2)		1,148,226		594,459		3,246,033		1,822,638
Total net sales	$	9,148,865	$	8,337,045	$	26,895,382	$	26,800,025