Note 5 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	Three Months Ended March 31,
	2014			2013
Stock-based compensation expense, gross	$	2,071		$	136
Income tax benefit at our statutory rate associated with stock-based compensation		(808	)		(53	)
Stock-based compensation expense, net	$	1,263		$	83

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

	Three Months Ended
	March 31, 2014					March 31, 2013
	Number of Shares			Weighted- Average Grant Date Fair Value Per Share		Number of Shares		Weighted- Average Grant Date Fair Value Per Share
Restricted stock - common:
Outstanding - beginning of period		274,838		$	4.43		-	$	-
Granted		312,961		$	11.78		382,062	$	4.43
Vested		(202,743	)	$	6.93		-	$	-
Outstanding - end of period		385,056		$	9.09		382,062	$	4.43

	Three Months Ended
	March 31, 2014					March 31, 2013
	Number of Shares			Weighted- Average Grant Date Fair Value Per Share		Number of Shares		Weighted- Average Grant Date Fair Value Per Share
Restricted stock - Class A common:
Outstanding - beginning of period		-		$	-		-	$	-
Granted		236,294		$	9.80		-	$	-
Vested		(31,821	)	$	9.75		-	$	-
Outstanding - end of period		204,473		$	9.81		-	$	-

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Three Months Ended
	March 31, 2014				March 31, 2013
	Number of Shares Underlying Options		Weighted- Average Exercise Price Per Share		Number of Shares Underlying Options			Weighted- Average Exercise Price Per Share
Stock options - common:
Outstanding - beginning of period		274,746	$	1.99		1,316,068		$	5.98
Options exercised		-	$	-		(15,000	)	$	3.11
Options expired		-	$	-		(921,500	)	$	7.64
Outstanding - end of period		274,746	$	1.99		379,568		$	2.06
Exercisable at end of period		68,688	$	1.99		20,000		$	3.23