Accounts Receivable and Other Receivables (Tables)

6 Months Ended

Jun. 30, 2014

Receivables [Abstract]

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

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

	June 30, 2014			December 31, 2013
Accounts receivable, gross	$	42,273		$	41,707
Less: allowance for doubtful accounts	(182		)	(348		)
Accounts receivable, net	$	42,091		$	41,359