Subsequent Events - Additional Information (Detail) - USD ($) $ in Millions |
6 Months Ended | |
---|---|---|
Jul. 19, 2017 |
Jun. 30, 2017 |
|
Private Dare [Member] | ||
Subsequent Event [Line Items] | ||
Stock purchase transaction completion date | Jul. 19, 2017 | |
Subsequent Events [Member] | Novartis Institutes for BioMedical Research, Inc [Member] | Asset Purchase Agreement [Member] | ||
Subsequent Event [Line Items] | ||
Proceeds from sale of assets | $ 6.0 | |
Subsequent Events [Member] | Common Stock [Member] | Private Dare [Member] | Stock Purchase Agreement [Member] | ||
Subsequent Event [Line Items] | ||
Stock purchase agreement, description | Cerulean issued shares of its common stock to Private Daré stockholders at an exchange ratio of 2.029969 shares of its common stock for each one share of Private Daré common stock outstanding before giving effect to the Reverse Stock Split. In addition, the Company assumed all outstanding options to purchase shares of Private Daré common stock, which options converted into options to purchase shares of its common stock, appropriately adjusted based on the exchange ratio. As a result of such issuance of shares, the stockholders of Private Daré became the majority stockholders of the Company. | |
Number of shares issued for each share under exchange ratio | 2.029969 |