Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2020

Stockholders' Equity

Summary of stock option activity

The following table summarizes stock option activity for the years ended December 31, 2020 and 2019 (shares and intrinsic values in thousands):

				Weighted-
				average
		Weighted-		remaining	Aggregate
	Number of	average exercise		contractual	intrinsic
	shares	price		term	value
Outstanding at December 31, 2018	2,910	$	11.62	5.6	$	2,806
Granted	1,025		12.06	6.0		—
Exercised	(60)		11.63	—		—
Forfeited	—		—	—		—
Expired	(20)		13.64	—		—
Outstanding at December 31, 2019	3,855	$	11.72	6.1	$	12,101
Granted	80		10.05	6.0		—
Exercised	—		—	—		—
Forfeited	—		—	—		—
Expired	—		—	—		—
Outstanding at December 31, 2020	3,935	$	11.69	5.1	$	291
Vested at December 31, 2020	3,140	$	11.64	4.2	$	264
Exercisable at December 31, 2020	3,140	$	11.64	4.2	$	264

Summary of restricted share activity

	Number of	Weighted-average
	shares	grant date fair value
Outstanding at December 31, 2018	370	$	9.86
Granted	581		12.37
Vested	(352)		9.78
Forfeited	(7)		14.55
Outstanding at December 31, 2019	592	$	12.32
Granted	163		9.59
Vested	(256)		12.65
Forfeited	—		—
Outstanding at December 31, 2020	499	$	11.26

Time Based Stock Option | Black Scholes Pricing Model

Stockholders' Equity

Schedule of valuation assumptions

	Year Ended		Year Ended
Black-Scholes Option Valuation Assumptions	December 31, 2020		December 31, 2019
Risk-free interest rate	0.42% - 0.50	%		1.6	%
Dividend yield	—			—
Volatility	44.2% - 46.1	%		40.3	%
Weighted-average expected term (years)	6.0			6.0