Income Taxes (Tables)

3 Months Ended

Mar. 31, 2012

Income Taxes [Line Items]

Schedule of effective tax rate [Table Text Block]

The following table provides details of income taxes:

	Three Months Ended March 31,
	2012			2011
Income before income taxes	$	2,873		$	8,150
Provision for income taxes	$	1,011		$	1,411
Effective tax rate	35.2		%	17.3		%