Note G - Economic Dependency (Tables)

6 Months Ended

Dec. 31, 2019

Supplier Concentration Risk [Member]

Notes Tables

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

	Three Months Ended December 31,				Six Months Ended December 31,
	2019		2018		2019		2018
Supplier 1	$	1,734	(a)		$	3,227		4,472
Supplier 2	(a)			1,866		(a)		(a)
	$	1,734		1,866	$	3,227		4,472

Customer Concentration Risk [Member]

Notes Tables

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

	Three Months Ended December 31,				Six Months Ended December 31,
	2019		2018		2019		2018
Customer 1	$	12,422	$	17,750	$	26,776	$	38,827
Customer 2		5,539		6,196		9,509		9,926
Customer 3	(a)			3,890		(a)		(a)
	$	17,961	$	27,836	$	36,285	$	48,753