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Note A - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) - USD ($)			3 Months Ended		9 Months Ended
	Mar. 31, 2019	Aug. 07, 2017	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)			130,000		130,000
Sales Discounts, Noncash						$ 82,000
Sales, Royalty and Licensing Revenue			$ 2,800,000	$ 3,700,000	10,300,000	13,500,000
Royalty Expense			$ 103,000	$ 156,000	$ 462,000	$ 597,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)			0	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares)			0	0	0	5,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period (in shares)			0	0	0	0
Share-based Payment Arrangement, Expense			$ 459,000	$ 400,000	$ 1,400,000	$ 1,200,000
Foreign Currency Contract, Asset, Fair Value Disclosure			1,700,000		1,700,000		$ 2,300,000
Fair Value, Inputs, Level 1 [Member]
Fair Value, Net Asset (Liability), Total			0		0		0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Net Asset (Liability), Total			0		0		$ 0
Juice Plus + [Member]
Agreement, Term (Year)		5 years
Sales Discounts, Cash			$ 395,000		$ 1,200,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			0	175,000	5,000	190,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (in shares)			0	0	15,000	5,000
Restricted Stock [Member] \| Juice Plus, Amended and Restated Exclusive Manufacturing Agreement [Member]
Treasury Stock, Shares, Acquired (in shares)	400,000
Restricted Stock [Member] \| Juice Plus + [Member]
Stock Issuance Agreement, Shares Agreed to Grant (in shares)		500,000
Sales Discounts, Noncash				$ 408,000		$ 82,000
Restricted Stock 1 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)			356,998	0	388,988	0
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)				0		0