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Note G - Treasury Stock (Details Textual) - September 2011 Reauthorization [Member] - shares
3 Months Ended
Mar. 31, 2022
Jun. 30, 2022
Nov. 30, 2017
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares)     500,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased (in shares)   458,390  
Treasury Stock, Shares, Retired (in shares) 12,268,395    
Treasury Stock, Common, Shares (in shares)   0