Convertible Preferred Stock and Stockholders’ Equity (Deficit) (Tables)

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Summary of Activity for Convertible Preferred Stock Issued and Outstanding

The following tables present a summary of activity for our convertible preferred stock issued and outstanding for the nine months ended September 30, 2017 (dollar amounts in thousands):

	Series A Convertible Preferred Stock					Series B Convertible Preferred Stock
	Amount			Shares		Amount			Shares
Balance as of January 1, 2017	$	17,915		12,043,108		$	37,500		6,120,050
Accretion of dividends on convertible preferred stock	357			—		—			—
Payment of accrued dividend to Series A convertible preferred stockholders	(7,565		)	—		—			—
Conversion of convertible preferred stock to common stock	(10,707		)	(12,043,108	)	(37,500		)	(6,120,050	)
Balance as of September 30, 2017	$	—		—		$	—		—