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Note F - Sales of Real Estate (Details Textual) - USD ($)
$ in Thousands
Oct. 23, 2018
Aug. 09, 2018
Regional Office Building in Fort Lauderdale, Florida [Member]    
Sale of Real Estate, Selling Costs   $ 17
Proceeds from Sale of Real Estate, Total   1,330
Other Income [Member] | Regional Office Building in Fort Lauderdale, Florida [Member]    
Gains (Losses) on Sales of Other Real Estate   $ 323
Company Owned Restaurant in Bay Ridge [Member]    
Proceeds from Divestiture of Businesses $ 11,445  
Sale of Real Estate, Selling Costs 33  
Company Owned Restaurant in Bay Ridge [Member] | Other Income [Member]    
Gain (Loss) on Disposition of Business $ 10,854