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Income Taxes (Details 2) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019
Reconciliation between the expected income tax provision applying the domestic federal statutory tax rate and the reported income tax provision |  |  |
Expected provision (benefit) for federal income taxes at the statutory rate | $ (9,085) | $ (7,695) | $ 8,067
State income taxes, net of federal benefit | (1,240) | (768) | 2,288
Impairment of non-deductible goodwill | 0 | 1,813 | 0
Charges without tax benefit | 961 | 1,707 | 1,233
Change in valuation allowance | 2,797 | 3,062 | 4,512
Reversal of branch liability | 0 | 0 | (3,546)
Excess tax expense (benefit) on stock-based compensation | 1,826 | 230 | (296)
Research and development and other tax credits | (1,707) | (1,724) | (1,972)
Foreign tax differential | (96) | (132) | (248)
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount | (5,223) | 0 | 0
Change in uncertain tax positions | (7) | 20 | 22
Other | (265) | (83) | 370
Provision (benefit) for federal, state and foreign income taxes | (12,039) | $ (3,570) | $ 10,430
Amount of non-deductible goodwill impaired. | 8,600 |  |
Operating Loss Carryforwards, Valuation Allowance | $ 1,500 |  |

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