Note C - Stockholders' Equity (Details Textual) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Jan. 31, 2095	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Jun. 30, 2023
Preferred Stock, Shares Authorized (in shares)		496,000,000		496,000,000	496,000,000
Share Price		$ 248		$ 248
Share-Based Payment Arrangement, Expense		$ 0	$ 0
Minimum [Member]
Proceeds From Public Offering Required for Mandatory Conversion				$ 1,000,000
Share Price		$ 1		$ 1
Convertible Preferred Stock [Member]
Preferred Stock, Shares Authorized (in shares)	4,000,000	4,000,000		4,000,000	4,000,000
Preferred Stock, Dividend Rate, Per-Dollar-Amount	$ 0.1
Dividends, Preferred Stock, Total				$ 0
Preferred Stock, Amount of Preferred Dividends in Arrears				$ 445,741
Convertible Preferred Stock, Shares Issued upon Conversion		1		1
Conversion of Stock, Shares Converted (in shares)		200