Trade and Other Receivables, Net (Tables)

12 Months Ended

Dec. 31, 2019

Accounts Receivable [Abstract]

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

Accounts receivable at December 31, 2019 and 2018, consists of the following (in thousands):

	December 31,
	2019			2018
Accounts receivable	$	59,606		$	38,876
Unbilled receivables and contract assets	5,682			3,924
Total receivables	65,288			42,800
Less: Allowance for doubtful accounts	(214		)	(978		)
Trade and other receivables, net	$	65,074		$	41,822