Consolidated Balance Sheets (Parentheticals) - $ / shares	Jun. 30, 2023	Jun. 30, 2022
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.001	$ 0.001
Preferred Stock, Shares Authorized (in shares)	50,000,000	50,000,000
Preferred Stock, Shares Issued (in shares)	49,360	49,360
Preferred Stock, Shares Outstanding (in shares)	49,360	49,360
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	900,000,000	900,000,000
Common stock, shares issued (in shares)	39,383,459	39,383,459
Common stock, shares outstanding (in shares)	39,383,459	39,383,459