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Fair Value of Financial Instruments (Summary of Assets Measured at Fair Value on Nonrecurring Basis) (Details) - Fair Value, Nonrecurring [Member] - USD ($)
$ in Thousands
Jun. 30, 2022
Jun. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total $ 892 $ 3,732
Fair Value, Inputs, Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Leasehold improvements, property and equipment, net 415 893
Operating leases assets $ 477 $ 2,839