Exhibit 12.1

STATEMENT RE COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	Year ended December 31,
(dollars in thousands)	2005			2006			2007			2008			2009
Ratio of earnings to fixed charges
Earnings:
Income (loss) before income taxes and cumulative effect of change in accounting principle	$	(4,164	)	$	5,719		$	11,794		$	10,291		$	9,907
Add:
Fixed charges		—			—			—			—			—
Amortization of capitalized interest		—			—			—			—			—
Distributed income of equity investees		—			—			—			—			—
Share of pre-tax losses of equity investees for which charges arising from guarantees are included in fixed charges		—			—			—			—			—
Less:
Capitalized interest		—			—			—			—			—
Preference security dividend requirements of consolidated subsidiaries		—			—			—			—			—
Non-controlling interest in pre-tax income of subsidiaries that have not incurred fixed charges		—			—			—			—			—
Total earnings	$	(4,164	)	$	5,719		$	11,794		$	10,291		$	9,907
Fixed charges:
Total interest expense	$	397		$	284		$	309		$	123		$	67
Capitalized interest		—			—			—			—			—
Interest factor in rents		—			—			—			—			—
Total fixed charges	$	397		$	284		$	309		$	123		$	67
Ratio of earnings to fixed charges		(10.5	)x		20.1	x		38.2	x		83.7	x		147.9	x