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Business acquisition - Assets acquired and liabilities assumed (Details) - USD ($) $ in Thousands | Jun. 14, 2021 | Sep. 30, 2021 | Sep. 30, 2020
--- | --- | --- | ---
Assets acquired |  |  |
Goodwill |  | $ 22,434 | $ 1,138
iGenomX International Genomics Corporation (iGenomX) |  |  |
Assets acquired |  |  |
Cash and cash equivalents | $ 7 |  |
Accounts receivable | 37 |  |
Inventories | 14 |  |
Intangible assets | 18,410 |  |
Goodwill | 21,538 |  |
Liabilities assumed |  |  |
Accounts payable | 57 |  |
Accrued expenses | 44 |  |
Deferred tax liability | 2,252 |  |
Fair value of assets acquired and liabilities assumed | 37,653 |  |
Consideration transferred |  |  |
Cash | 490 |  |
Company common stock | 26,772 |  |
Contingent consideration | 5,467 |  |
Indemnity holdback | 4,924 |  |
Fair value of purchase consideration | $ 37,653 |  |

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