Exhibit 12.1

Computation of Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends

Earnings	Three Months Ended March 31,				Year Ended December 31,
	2012		2011		2011		2010			2009			2008		2007
Pre-tax income from continuing operations before adjustment for income or loss from equity investee	$	8,707	$	1,105	$	17,185	$	12,301		$	1,101		$	5,502	$	8,845
Plus: Fixed charges		3,683		140		13,387		485			418			420		375
Less: Noncontrolling interest in pre-tax income of subsidiaries that have not incurred fixed charges		—		—		—		(936	)		(701	)		—		—
Total Earnings	$	12,390	$	1,245	$	30,572	$	13,722		$	2,220		$	5,922	$	9,220
Fixed Charges
Interest Expensed	$	1,159	$	8	$	4,089	$	52		$	46		$	16	$	16
Plus: Estimate of the interest within rental expense*		359		132		1,070		433			372			404		359
Plus: Preference security dividend requirement		2,165		—		8,228		—			—			—		—
Total Fixed Charges	$	3,683	$	140	$	13,387	$	485		$	418		$	420	$	375
Ratio of Earnings to Fixed Charges		3.36		8.89		2.28		28.29			5.31			14.10		24.59

* The interest component of rent expense is assumed to be 33% for purposes of the above calculation.