Fair value measurements - Schedule of financial assets and liabilities measured at fair value on a recurring basis (Details) | Jun. 30, 2022 USD ($) |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | $ 126,222,711 |
Fair Value, Recurring | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Total | 180,133,416 |
Fair Value, Recurring | Level 1 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Total | 83,599,447 |
Fair Value, Recurring | Level 2 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Total | 96,533,969 |
Fair Value, Recurring | Level 3 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Total | 0 |
Corporate bonds | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 36,768,362 |
Corporate bonds | Fair Value, Recurring | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 36,768,362 |
Corporate bonds | Fair Value, Recurring | Level 1 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 0 |
Corporate bonds | Fair Value, Recurring | Level 2 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 36,768,362 |
Corporate bonds | Fair Value, Recurring | Level 3 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 0 |
U.S. Treasury securities | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 34,687,436 |
U.S. Treasury securities | Fair Value, Recurring | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 34,687,436 |
U.S. Treasury securities | Fair Value, Recurring | Level 1 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 34,687,436 |
U.S. Treasury securities | Fair Value, Recurring | Level 2 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 0 |
U.S. Treasury securities | Fair Value, Recurring | Level 3 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 0 |
Commercial paper | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 29,738,419 |
Commercial paper | Fair Value, Recurring | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 29,738,419 |
Commercial paper | Fair Value, Recurring | Level 1 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 0 |
Commercial paper | Fair Value, Recurring | Level 2 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 29,738,419 |
Commercial paper | Fair Value, Recurring | Level 3 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 0 |
Asset backed securities | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 25,028,494 |
Asset backed securities | Fair Value, Recurring | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 25,028,494 |
Asset backed securities | Fair Value, Recurring | Level 1 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 0 |
Asset backed securities | Fair Value, Recurring | Level 2 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 25,028,494 |
Asset backed securities | Fair Value, Recurring | Level 3 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Available-for-sale debt securities: | 0 |
Money market mutual fund | Fair Value, Recurring | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash equivalents: | 48,912,011 |
Money market mutual fund | Fair Value, Recurring | Level 1 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash equivalents: | 48,912,011 |
Money market mutual fund | Fair Value, Recurring | Level 2 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash equivalents: | 0 |
Money market mutual fund | Fair Value, Recurring | Level 3 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash equivalents: | 0 |
Commercial paper | Fair Value, Recurring | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash equivalents: | 4,998,694 |
Commercial paper | Fair Value, Recurring | Level 1 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash equivalents: | 0 |
Commercial paper | Fair Value, Recurring | Level 2 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash equivalents: | 4,998,694 |
Commercial paper | Fair Value, Recurring | Level 3 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash equivalents: | $ 0 |