Note 5 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2013

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 September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Stock-based compensation expense, gross	$	255		$	170		$	1,719		$	324
Income tax benefit at our statutory rate associated with stock-based compensation		(99	)		(66	)		(670	)		(126	)
Stock-based compensation expense, net	$	156		$	104		$	1,049		$	198

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

	Nine Months Ended
	September 30, 2013					September 30, 2012
	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		-		$	-		-	$	-
Granted		382,062			5.20		432,396		1.65
Vested		(107,224	)		7.16		-		-
Outstanding - end of period		274,838		$	4.43		432,396	$	1.65

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

	Nine Months Ended
	September 30, 2013					September 30, 2012
	Number of Shares Underlying Options			Weighted- Average Exercise Price		Number of Shares Underlying Options			Weighted- Average Exercise Price
Stock options - common:
Outstanding - beginning of period		1,316,068		$	5.98		1,002,350		$	7.50
Options granted		-		$	-		359,568		$	1.99
Options exercised		(119,822	)	$	2.34		-		$	-
Options expired		(921,500	)	$	7.64		(32,150	)	$	8.61
Options forfeited		-		$	-		(1,500	)	$	7.64
Options outstanding - end of period		274,746		$	1.99		1,328,268		$	5.98
Exercisable at end of period		68,688		$	1.99		968,700		$	7.47