Significant Accounting Policies Deferred revenue (Tables)

12 Months Ended

Jun. 30, 2020

Revenue Recognition and Deferred Revenue [Abstract]

Deferred Revenue, by Arrangement, Disclosure [Table Text Block]

	Years ended June 30,
	2020		2019
Beginning of Year	$	427,000	$	481,000
Additions	1,052,000		888,000
Revenue Recognized	963,000		942,000
End of Year	$	516,000	$	427,000