Accounts Receivable and Other Receivables (Tables)

3 Months Ended

Mar. 31, 2015

Receivables [Abstract]

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

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

	March 31, 2015			December 31, 2014
Accounts receivable, gross	$	41,905		$	43,969
Less: allowance for doubtful accounts	(189		)	(124		)
Accounts receivable, net	$	41,716		$	43,845