Income Taxes - (Tables)

6 Months Ended

Jun. 30, 2012

Income Taxes [Abstract]

Schedule of effective tax rate [Table Text Block]

The following table provides details of income taxes:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2012			2011			2012			2011
Income before income taxes	$	9,931		$	7,930		$	12,804		$	16,080
Provision for income taxes	$	3,585		$	973		$	4,596		$	2,384
Effective tax rate	36.1		%	12.3		%	35.9		%	14.8		%