Intangible Assets (Carrying Value and Accumulated Amortization) (Details) - USD ($) $ in Thousands |
Mar. 31, 2021 |
Jun. 30, 2020 |
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Finite-Lived Intangible Assets, gross carrying value | $ 5,948 | $ 5,728 |
| Finite-Lived Intangible Assets, accumulated Amortization | (4,802) | (4,584) |
| Net intangible assets | 1,146 | 1,144 |
| Intellectual Property [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Finite-Lived Intangible Assets, gross carrying value | 3,100 | 3,100 |
| Finite-Lived Intangible Assets, accumulated Amortization | (2,672) | (2,555) |
| Patents [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Finite-Lived Intangible Assets, gross carrying value | 2,848 | 2,628 |
| Finite-Lived Intangible Assets, accumulated Amortization | $ (2,130) | $ (2,029) |
| X | ||||||||||
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|