Quarterly report pursuant to Section 13 or 15(d)

Convertible Promissory Note Receivable (Narrative) (Details)

v3.21.2
Convertible Promissory Note Receivable (Narrative) (Details) - USD ($)
3 Months Ended
Oct. 01, 2020
Sep. 30, 2021
Sep. 30, 2020
Jun. 30, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Interest income   $ 36,000 $ 4,000  
Convertible Promissory Note Receivable [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Amount invested $ 1,500,000      
Interest rate 5.00%      
Interest income   19,000    
Note balance and accrued interest   $ 1,575,000   $ 1,556,000