Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Reconciliation of liabilities measured at fair value using significant unobservable inputs

The following table provides a reconciliation of liabilities measured at fair value using significant unobservable inputs (Level 3) for the nine months ended September 30, 2019 (in thousands):

	Level 3 Liabilities
Balance at January 1, 2019	$	2,600
Settlement of Milestone #2		(2,889	)
Change in fair value measurement		289
Balance at March 31, 2019		—
Vested portion of liability classified equity award		31
Balance at June 30, 2019	$	31
Vested portion of liability classified equity award		63
Change in fair value measurement		8
Balance at September 30, 2019	$	102