Note 9 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

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

	Three Months Ended March 31,
	2019			2018
Stock-based compensation expense, gross	$	2		$	2
Income tax benefit at our statutory rate associated with stock-based compensation		(1	)		(1	)
Stock-based compensation expense, net	$	1		$	1

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

	Three Months Ended March 31,
	2019					2018
				Weighted-					Weighted-
				Average					Average
	Number			Grant Date		Number			Grant Date
	of			Fair Value		of			Fair Value
	Shares			Per Share		Shares			Per Share
Restricted common stock:
Outstanding - beginning of period		578,894		$	13.14		503,685		$	11.14
Granted (1)		677,602			15.72		318,196			15.25
Vested		(279,170	)		13.25		(225,570	)		11.21
Outstanding - end of period		977,326		$	14.89		596,311		$	13.31
Restricted Class A common stock:
Outstanding - beginning of period		407,786		$	11.82		462,632		$	10.63
Granted (1)		199,810			15.36		220,080			12.65
Vested		(158,312	)		11.38		(274,926	)		10.48
Outstanding - end of period		449,284		$	13.55		407,786		$	11.82
Restricted stock units - common stock:
Outstanding - beginning of period		-		$	-		209,500		$	15.70
Vested		-			-		(209,500	)		15.70
Outstanding - end of period		-		$	-		-		$	-