Note 7 - Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Fair Value, by Balance Sheet Grouping [Table Text Block]

	Carrying		Fair
Description	Amount		Value		Level 1		Level 2		Level 3
December 31, 2019
Revolving line of credit	$	500,000	$	500,000		-	$	500,000		-
Note receivable - distributor		1,282,072		1,400,000		-		1,400,000		-
Notes receivable - Nutracom		1,171,746		1,169,000		-		-	$	1,169,000
December 31, 2018
Note receivable - distributor	$	1,405,112	$	1,529,000		-	$	1,529,000		-
Marketable securities		339,000		339,000	$	339,000		-		-