Accounts Receivable and Other Receivables (Tables)

6 Months Ended

Jun. 30, 2012

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Accounts receivable balances consisted of the following (in thousands):

	June 30, 2012			December 31, 2011
Accounts receivable, gross	$	49,177		$	50,040
Less: allowance for doubtful accounts	(792		)	(828		)
Accounts receivable, net	$	48,385		$	49,212