Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2011

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, 2010	$	447
Provision	80
Allowance for credit losses as of June 30, 2011	$	527