Note 7 - Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three months ended				Nine months ended
	September 30				September 30
	2020		2019		2020		2019
Net sales by product category
Nutritional and dietary supplements	$	7,367,492	$	7,400,530	$	23,024,645	$	23,042,485
Other supplements		289,982		671,790		973,224		812,083
Sales aids, membership fees, and other		277,913		323,621		857,497		955,411
Freight income		489,479		521,192		1,494,281		1,521,014
Other revenue		243,478		231,732		617,922		564,389
Total net sales	$	8,668,344	$	9,148,865	$	26,967,569	$	26,895,382

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

	Three months ended				Nine months ended
	September 30				September 30
	2020		2019		2020		2019
Net sales by geographic region
United States	$	6,682,473	$	6,842,640	$	20,612,493	$	19,859,018
Australia/New Zealand		148,012		135,123		436,883		444,500
Canada		127,791		139,991		412,448		479,418
Mexico		166,476		155,847		419,651		444,442
Europe (1)		628,810		727,038		2,193,436		2,421,971
Asia (2)		914,782		1,148,226		2,892,658		3,246,033
Total net sales	$	8,668,344	$	9,148,865	$	26,967,569	$	26,895,382