Note G - Economic Dependency (Tables)

9 Months Ended

Mar. 31, 2021

Supplier Concentration Risk [Member]

Notes Tables

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

	Three Months Ended March 31,				Nine Months Ended March 31,
	2021		2020		2021		2020
Supplier 1	$	5,978		1,930	$	15,765	(a)
	$	5,978		1,930	$	15,765		—

Customer Concentration Risk [Member]

Notes Tables

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

	Three Months Ended March 31,				Nine Months Ended March 31,
	2021		2020		2021		2020
Customer 1	$	23,215	$	9,271	$	72,001	$	36,047
Customer 2		5,811	(a)		(a)		(a)
Customer 3	(a)			7,599		16,288		17,108
	$	29,026	$	16,870	$	88,289	$	53,155