Accounts Receivable and Other Receivables (Tables)

6 Months Ended

Jun. 30, 2013

Receivables [Abstract]

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

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

	June 30, 2013			December 31, 2012
Accounts receivable, gross	$	45,640		$	52,068
Less: allowance for doubtful accounts	(464		)	(779		)
Accounts receivable, net	$	45,176		$	51,289