Non-controlling Interest	9 Months Ended
Sep. 30, 2019
Noncontrolling Interest [Abstract]
Non-controlling Interest	8. Non-controlling interest In 2018, the Company issued shares of preferred stock in its subsidiary, Frequency Japan, to a Japanese investor. The Company has consolidated Frequency Japan in the consolidated unaudited financial statements and has recorded the proceeds received for the sale of the preferred stock in Frequency Japan as a non-controlling interest in the temporary equity section of the unaudited consolidated balance sheets. The liquidation preference of the shares of preferred stock equals the purchase price of such shares. The Frequency Japan preferred stock held by such investor was convertible, at the option of the holder, into 673,605 shares of Company common stock, adjustable for certain dilutive events, upon an initial public offering of Company common stock, a Company liquidation or upon a 70% vote of the holders of the Preferred Stock. The preferred shares also have a liquidation preference equal to the amount paid for the shares. The Company had the option to acquire the preferred shares of Frequency Japan under certain circumstances and the holder of such preferred shares had the right to require the Company to purchase such shares under certain circumstances, primarily a merger or liquidation. In connection with this sale of the preferred stock in Frequency Japan, FT-FJ Investment, LLC (FT-FJ), a Delaware limited liability company controlled by the Company, purchased 10,000 shares of the Company’s Series A-1 Preferred and 10,000 shares of the Company’s Series B-1 Preferred. FT-FJ also granted to the Japanese investor an irrevocable proxy to vote the shares of Series A-1 and Series B-1 Preferred held by FT-FJ. Each share of Series A-1 Preferred had 236 times the voting power of one share of common stock and each share of Series B-1 Preferred has 217 times the voting power of one share of common stock. On August 20, 2019, the Company, Frequency Japan, the Japanese investor, and FT-FJ entered into an agreement pursuant to which, contingent upon the closing of the initial public offering of the Company’s common stock: (i) the Japanese investor agreed to convert its shares of preferred stock held in Frequency Japan and to terminate its proxy over the shares of Series A-1 and B-1 Preferred Stock held by FT-FJ and (ii) FT-FJ agreed to forfeit its shares of Series A-1 and Series B-1 Preferred Stock. The shares were converted into common stock and the Series A-1 and B-1 preferred stock were forfeited in conjunction with the IPO.

Non-controlling Interest

9 Months Ended

Sep. 30, 2019

8. Non-controlling interest

In 2018, the Company issued shares of preferred stock in its subsidiary, Frequency Japan, to a Japanese investor. The Company has consolidated Frequency Japan in the consolidated unaudited financial statements and has recorded the proceeds received for the sale of the preferred stock in Frequency Japan as a non-controlling interest in the temporary equity section of the unaudited consolidated balance sheets. The liquidation preference of the shares of preferred stock equals the purchase price of such shares.

The Frequency Japan preferred stock held by such investor was convertible, at the option of the holder, into 673,605 shares of Company common stock, adjustable for certain dilutive events, upon an initial public offering of Company common stock, a Company liquidation or upon a 70% vote of the holders of the Preferred Stock. The preferred shares also have a liquidation preference equal to the amount paid for the shares. The Company had the option to acquire the preferred shares of Frequency Japan under certain circumstances and the holder of such preferred shares had the right to require the Company to purchase such shares under certain circumstances, primarily a merger or liquidation.

In connection with this sale of the preferred stock in Frequency Japan, FT-FJ Investment, LLC (FT-FJ), a Delaware limited liability company controlled by the Company, purchased 10,000 shares of the Company’s Series A-1 Preferred and 10,000 shares of the Company’s Series B-1 Preferred. FT-FJ also granted to the Japanese investor an irrevocable proxy to vote the shares of Series A-1 and Series B-1 Preferred held by FT-FJ. Each share of Series A-1 Preferred had 236 times the voting power of one share of common stock and each share of Series B-1 Preferred has 217 times the voting power of one share of common stock.

On August 20, 2019, the Company, Frequency Japan, the Japanese investor, and FT-FJ entered into an agreement pursuant to which, contingent upon the closing of the initial public offering of the Company’s common stock: (i) the Japanese investor agreed to convert its shares of preferred stock held in Frequency Japan and to terminate its proxy over the shares of Series A-1 and B-1 Preferred Stock held by FT-FJ and (ii) FT-FJ agreed to forfeit its shares of Series A-1 and Series B-1 Preferred Stock. The shares were converted into common stock and the Series A-1 and B-1 preferred stock were forfeited in conjunction with the IPO.