Geographic Regions (Tables)

12 Months Ended

Sep. 30, 2017

Segments, Geographical Areas [Abstract]

Schedule of Revenues, Operating Income (Loss) and Identifiable Assets by Geographic Region

operations in The Netherlands, United States, France and China. Revenues, operating income (loss) and identifiable assets by geographic region are as follows:

	Years Ended September 30,
	2017			2016			2015
	(dollars in thousands)
Net revenue:
The Netherlands	$	81,443		$	52,189		$	46,982
United States	60,952			44,299			37,483
France	5,588			8,758			8,387
China	12,673			11,799			9,725
Other	3,860			3,263			2,306
	$	164,516		$	120,308		$	104,883
Operating income (loss):
The Netherlands	$	5,206		$	(7,773	)	$	(9,069	)
United States	1,527			(1,396		)	(5,541		)
France	(1,000		)	(783		)	(330		)
China	3,647			1,530			986
Other	1,045			514			433
	$	10,425		$	(7,908	)	$	(13,521	)
				As of September 30,
				2017			2016
Net property, plant and equipment:
The Netherlands				$	5,190		$	4,996
United States				9,924			10,171
France				289			241
China				389			552
				$	15,792		$	15,960