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Merger with Mirna Therapeutics - Net Assets Acquired in the Merger (Detail) - Mirna therapeutics $ in Thousands | Aug. 28, 2017 USD ($)
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Business Acquisition [Line Items] |
Cash and cash equivalents | $ 14,882
Marketable securities | 27,600
Interest receivable | 126
Prepaid assets | 112
Unrealized loss on marketable securities | 5
Accounts payable and accrued expenses | (105)
Total net assets acquired | 42,620
Less: Transaction costs | (2,187)
Total net assets acquired less transaction costs | $ 40,433

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