Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2012

Fair Value Disclosures [Abstract]

Allowance for Credit Losses on Financing Receivables [Table Text Block]

The following table sets forth a summary of changes in the allowance for credit losses as follows:

(in thousands)
Allowance for credit losses as of December 31, 2011	$	421
Provision	(66		)
Allowance for credit losses as of March 31, 2012	$	355