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Note C - Finance Receivables, Net - Components of Finance Receivables (Details) - USD ($)
$ in Thousands
Jul. 31, 2018
Apr. 30, 2018
Jul. 31, 2017
Apr. 30, 2017
Gross contract amount $ 606,396 $ 584,682    
Less unearned finance charges (85,576) (83,244)    
Principal balance 520,820 501,438 $ 483,719  
Less allowance for credit losses (122,447) (117,821) (113,733) $ (109,693)
Finance receivables, net $ 398,373 $ 383,617 $ 369,986 $ 357,161