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Note C - Finance Receivables, Net - Components of Finance Receivables (Details) - USD ($)
$ in Thousands
Apr. 30, 2017
Apr. 30, 2016
Apr. 30, 2015
Apr. 30, 2014
Gross contract amount $ 545,916 $ 504,149    
Less unearned finance charges (79,062) (66,871)    
Principal balance 466,854 437,278    
Less allowance for credit losses (109,693) (102,485) $ (93,224) $ (86,033)
Finance receivables, net $ 357,161 $ 334,793 $ 324,144 $ 293,299