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Significant Accounting Policies Deferred revenue (Tables)
12 Months Ended
Jun. 30, 2024
Revenue Recognition and Deferred Revenue [Abstract]  
Deferred Revenue, by Arrangement, Disclosure [Table Text Block]
Years ended June 30,
20242023
Beginning of Year$426,000 $333,000 
Additions692,000 717,000 
Revenue Recognized(838,000)(624,000)
End of Year$280,000 $426,000