Accounts Receivable - net (Tables)

12 Months Ended

Dec. 31, 2016

Loans and Leases Receivable Disclosure [Abstract]

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

	December 31,
	2016		2015
Trade receivables (note 11 (d))	$	52,061	$	40,733
Allowance for doubtful accounts		(3,603)		(2,415)
		48,458		38,318
Other receivables		1,374		703
Total accounts receivable	$	49,832	$	39,021

Accounts Receivable Aging [Table Text Block]

The Company’s maximum exposure to credit risk at the balance sheets date relating to trade receivables is summarized as follows:

	December 31,
	2016		2015
Aging within one year, net of allowance for doubtful accounts	$	45,340	$	34,495
Aging greater than one year, net of allowance for doubtful accounts		3,118		3,823
Total trade receivables	$	48,458	$	38,318