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Long-Term Debt - Additional Information (Details) - USD ($) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 30, 2021 | Sep. 30, 2018 | Jun. 30, 2018 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2014
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Loan forgiveness |  |  |  |  |  | $ 1,000,000 | $ 0 |
Interest expense, Debt |  |  |  | $ 8,125 | $ 16,250 | $ 24,375 | $ 32,500 |
2014 Assistance Agreement | State of Connecticut |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument maturity month and year |  |  |  |  |  |  |  | 2024-01
Debt instrument face amount |  |  |  |  |  |  |  | $ 2,500,000
Percentage of liquidated damages |  |  |  |  |  |  |  | 7.50%
2018 Assistance Agreement | State of Connecticut |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument maturity month and year |  | 2028-09 |  |  |  |  |  |
Debt instrument face amount |  | $ 2,000,000.0 |  |  |  |  |  |
Percentage of liquidated damages |  | 7.50% |  |  |  |  |  |
Percentage of maximum funding on total project costs |  |  | 50.00% |  |  |  |  |
Debt instrument bearing interest rate |  | 3.25% |  |  |  |  |  |
Debt instrument interest payments term |  | 60 months |  |  |  |  |  |
Debt instrument amortization period after interest payments period |  | 120 months |  |  |  |  |  |
Loan forgiveness | $ 1,000,000.0 |  |  |  |  |  |  |
2018 Assistance Agreement | State of Connecticut | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument face amount |  |  | $ 2,000,000.0 |  |  |  |  |
Forgiveness of funding on achieving certain employment conditions |  | $ 1,000,000.0 |  |  |  |  |  |

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