Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2019

Stock-Based Compensation

Summary of the status of restricted stock units

				Average
		Weighted		Remaining
	Number	Average Grant		Contractual Life	Aggregate
	of Shares	Date Fair Value		(Years)	Intrinsic Value
Balance as of December 31, 2018	893,297	$	5.86	0.76	$	5,239
Granted	462,617		2.49
Forfeited	(242,116)		5.41
Vested	(804,493)		5.88
Balance as of December 31, 2019	309,305	$	1.99	1.19	$	616

Schedule of stock option activity

						Average
		Weighted		Weighted		Remaining
		Average Grant		Average		Vesting Period	Aggregate
	Outstanding	Date Fair Value		Exercise Price		(Years)	Intrinsic Value
Outstanding Balance as of December 31, 2018	3,570,300	$	2.69	$	6.06	2.92	$	9,590
Granted	2,050,600		0.94
Exercised	—		—
Forfeited	(683,200)		2.64
Expired	—		—
Outstanding Balance as of December 31, 2019	4,937,700	$	1.97	$	4.14	2.27	$	9,719