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Fair Value Measures and Disclosures (Tables)
12 Months Ended
Jun. 30, 2021
Fair Value Disclosures [Abstract]  
Fair Value, Assets Measured on Recurring Basis
Fair value of financial assets included in current assets is as follows:

Estimated Fair Value MeasurementsTotal Fair
 Level 1Level 2Level 3Value
June 30, 2021   
Financial Assets:
Certificates of Deposit$ $1,200 $ $1,200 
Financial Liabilities:
Revolving credit facility
$ $100,000 $ $100,000 
June 30, 2020   
Financial Assets:
Certificates of Deposit$— $— $— $— 
Financial Liabilities:
Revolving credit facility
$— $— $— $—