Note 8 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

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

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2020			2019			2020			2019
Stock-based compensation expense, gross	$	5		$	5		$	12		$	10
Forfeitures		-			-			-			-
Income tax benefit at our statutory rate associated with share-based compensation		(1	)		(1	)		(3	)		(3	)
Stock-based compensation expense, net	$	4		$	4		$	9		$	7

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

	Nine Months Ended
	September 30, 2020					September 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 - class A common:
Outstanding - beginning of period		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
Forfeited		-		$	-		-		$	-
Outstanding - end of period		480,042		$	16.10		449,284		$	13.55
Restricted stock - common:
Outstanding - beginning of period		977,547		$	15.45		578,894		$	13.14
Granted		359,481		$	18.92		718,783		$	16.08
Vested		(333,865	)	$	15.35		-		$	-
Forfeited		(85,630	)	$	15.53		(352,810	)	$	12.98
Outstanding - end of period		917,533		$	16.84		944,867		$	15.44
Restricted stock units - common stock:
Outstanding - beginning of period		398,000		$	18.21		-		$	-
Granted		93,184		$	18.77		398,000		$	18.21
Vested		(374,500	)	$	18.18		-		$	-
Forfeited		(26,500	)	$	18.21		-		$	-
Outstanding - end of period		90,184		$	18.92		398,000		$	18.21