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Significant Accounting Policies (Tables)
3 Months Ended 12 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] The following table summarizes convertible preferred stock and securities that, if exercised would have an anti-dilutive effect on earnings per share.
For the Three Months Ended September 30,
20212020
Stock options157,000 157,000 
Convertible preferred stock 5,204,527 
Total potential dilutive securities not included in income per share157,000 5,361,527 
 
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]  
For the Three Months Ended September 30,
20212020
Numerator:
  Numerator for basic earnings (loss) per share:
 Net income (loss)$317,220 $(196,553)
Undeclared dividends on preferred stock13,006 12,970 
Net income (loss) applicable to common shareholders$304,214 $(209,523)
Numerator for diluted earnings per share:
Net income (loss) applicable to common shareholders$304,214 $(209,523)
Undeclared dividends on preferred stock13,006 — 
Diluted earnings (loss)$317,220 $(209,523)
Denominator for basic earnings (loss) per share
Denominator for basic earnings (loss) per share - weighted average shares outstanding
7,415,3297,415,329 
Weighted average preferred stock converted to common stock5,460,873 — 
 Denominator for diluted earnings (loss) assumed conversion12,876,202 7,415,329 
Net income (loss) per share:
Basic net income (loss) per share$0.04 $(0.03)
Diluted net income (loss) per share$0.02 $(0.03)
Schedule of Inventory, Current [Table Text Block]  
September 30, June 30,
(in thousands)20212021
Inventories, net:
        Raw Material$852 833 
        Work-In-Process134 171 
        Finished Goods752 773 
Total inventories$1,738 $1,777 
Allowance for obsolete inventory(350)(360)
Inventories, net$1,388 $1,417 
Deferred Revenue, by Arrangement, Disclosure [Table Text Block]  
(in thousands)Three Months Ended September 30,
20212020
Beginning of Period$364 $516 
Additions107 181 
Revenue Recognized195 230 
End of Period$276 $467