Note 7 - Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2020

Notes Tables

Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2020			2019			2020			2019
Stock-based compensation expense, gross	$	3		$	2		$	7		$	5
Income tax benefit at our statutory rate associated with stock-based compensation		(1	)		(1	)		(2	)		(1	)
Stock-based compensation expense, net	$	2		$	1		$	5		$	4

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

	Six Months Ended
	June 30, 2020					June 30, 2019
				Weighted-					Weighted-
				average					average
				Grant Date					Grant Date
	Number of			Fair Value		Number of			Fair Value
	Shares			Per Share		Shares			Per Share
Restricted stock - common:
Outstanding - beginning of period (1)		977,547		$	15.45		578,894		$	13.14
Granted (1)		327,265		$	19.25		718,783		$	16.08
Vested		(301,185	)	$	15.28		(352,810	)	$	12.98
Forfeited		(85,630	)	$	15.53		-		$	0.00
Outstanding - end of period (1)		917,997		$	16.86		944,867		$	15.44
Restricted stock - Class A common:
Outstanding - beginning of period (1)		449,284		$	13.55		407,786		$	11.82
Granted (1)		166,814		$	19.87		199,810		$	15.36
Vested		(136,056	)	$	12.32		(158,312	)	$	11.38
Outstanding - end of period (1)		480,042		$	16.10		449,284		$	13.55
Restricted stock units - common stock:
Outstanding - beginning of period		398,000		$	18.21		-		$	0.00
Granted		93,184		$	18.77		398,000		$	18.21
Vested		(374,500	)	$	18.18		-		$	0.00
Forfeited		(26,500	)	$	18.21		-		$	0.00
Outstanding - end of period		90,184		$	18.92		398,000		$	18.21