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Note 18. Credit Quality and Allowance for Credit Losses of Notes Receivable - Credit Quality and Allowance for Credit Losses (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Jun. 30, 2019
Notes Receivable    
Notes Receivable, Unpaid Balance $ 1,286 $ 1,132
Notes Receivable, Related Allowance 363 122
Notes Receivable, Net of Allowance 923 1,010
Notes Receivable | Independent Dealership Financing    
Notes Receivable    
Notes Receivable, Unpaid Balance 923 1,010
Notes Receivable, Related Allowance 0 0
Notes Receivable, Net of Allowance 923 1,010
Notes Receivable | Other Notes Receivable    
Notes Receivable    
Notes Receivable, Unpaid Balance 363 122
Notes Receivable, Related Allowance 363 122
Notes Receivable, Net of Allowance $ 0 $ 0