Accounts Receivable and Other Receivables (Tables)

3 Months Ended

Mar. 31, 2014

Receivables [Abstract]

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

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

	March 31, 2014			December 31, 2013
Accounts receivable, gross	$	37,805		$	41,707
Less: allowance for doubtful accounts	(258		)	(348		)
Accounts receivable, net	$	37,547		$	41,359