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Equity Plans (Narrative) (Details) - USD ($) | 12 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Non-cash share-based compensation expense | $ 2,600,000 | $ 2,400,000
Vesting period |  | 4 years
Minimum [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Number of shares authorized under 2015 Equity Incentive Plan | 3,000,000 |
Maximum [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Number of shares authorized under 2015 Equity Incentive Plan | 1,500,000 |
2017 Employee Stock Purchase Plan [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Discount rate on purchase of common stock |  | 5.00%
Common Stock [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Number of shares authorized under 2015 Equity Incentive Plan | 3,261 |
Stock vested | 3,834 | 25,310
Fair value of stock vested | $ 120,000 | $ 69,000
Stock issued under employee stock purchase plan | 8,389 | 2,492
Non-vested restricted stock awards [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Weighted-average period | 16 years |
Restricted stock [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Non-cash share-based compensation expense | $ 18,100,000 |
Grant date fair value of restricted stock | $ 4,800,000 |
Stock vested | 14,485 | 75,093
Fair value of stock vested | $ 87,000 | $ 853,000
Restricted stock [Member] | Minimum [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Vesting period | 10 years |
Restricted stock [Member] | Maximum [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Vesting period | 19 years |
Stock awards [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Number of shares authorized under 2015 Equity Incentive Plan | 8,287 |
Awards granted under 2015 Equity Incentive Plan | 8,287 |
Grant date fair value of restricted stock | $ 300,000 | $ 264,000
Fair value of stock vested | $ 118,000 |
Restricted Stock Awards [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Awards granted under 2015 Equity Incentive Plan | 134,612 | 8,624
Restricted Stock Units [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Non-cash share-based compensation expense | $ 9,600,000 |
Awards granted under 2015 Equity Incentive Plan | 178,719 | 204,014
Grant date fair value of restricted stock | $ 3,800,000 | $ 6,300,000
Weighted-average period | 11 years 4 months 24 days |
Stock vested | 6,350 | 2,531
Restricted Stock Units [Member] | Minimum [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Vesting period | 4 years | 4 years
Restricted Stock Units [Member] | Maximum [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Vesting period | 37 years | 41 years

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