Revenue Recognition from Contracts with Customers (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
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| Revenue from Contract with Customer [Abstract] | ||
| Revenue related to filter product sales | $ 5 | |
| Contract liability | $ 125 | |
| Revenue expected to be recognized | $ 2,500 | |
| X | ||||||||||
- Definition Revenue expected to be recognized. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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