Note M - Certain Relationships and Related Party Transactions (Details Textual) - Securities Purchase Agreement [Member] - Series A Preferred Stock [Member] - Wipro [Member] - USD ($) $ in Millions	Jan. 30, 2018	Dec. 31, 2020
Sale of Stock, Number of Shares Issued in Transaction (in shares)	9,926
Convertible Preferred Stock, Shares Issued upon Conversion (in shares)	1,001,614
Convertible Preferred Stock, Shares Issued upon Conversion as Percent of Common Stock Outstanding		15.00%
Sale of Stock, Consideration Received on Transaction	$ 9.9