Share-based Compensation (Tables)

9 Months Ended

Sep. 30, 2019

Share-based Payment Arrangement [Abstract]

Nonvested Restricted Stock Shares Activity [Table Text Block]

		Weighted
	Number of	Average Grant
	Units	Date Fair Value
Unvested at December 31, 2018	270,742	$	14.20
Granted	788,926		7.86
Vested	(91,269)		13.26
Forfeited	(127,516)		9.00
Unvested at September 30, 2019	840,883	$	9.18

Share-based Payment Arrangement, Option, Activity [Table Text Block]

		Weighted
	Number of	Average Grant
	Units	Date Fair Value
Unvested at December 31, 2018	177,260	$	6.09
Granted	244,785		4.41
Vested	(44,312)		6.09
Forfeited/Canceled	(24,631)		6.09
Unvested at September 30, 2019	353,102	$	4.93

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Strike price	$	9.40
Risk-free interest rate		2.50	%
Expected dividend yield		0	%
Expected volatility		45.65	%
Expected term (in years)		6.25

Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

	Number of	Weighted
	Units	Average
Unvested at December 31, 2018	1,401,674	$	2.00
Vested	(453,334)		1.70
Forfeited	(103,893)		2.15
Unvested at September 30, 2019	844,447	$	2.14