Geographical Information

12 Months Ended

Sep. 30, 2018

We evaluate our reportable segment pursuant to ASC 280, Segment Reporting. The Company's Chief Executive Officer is the chief operating decision maker and he assesses the performance of the operating segment and allocates resources to the segment based on its business prospects, competitive factors, net revenue, operating results, and other non-U.S. GAAP financial ratios. Based on this evaluation, the Company operates as a single reportable segment, Fiber Optics.

Revenue: The following tables set forth revenue by geographic region with revenue assigned to geographic regions based on our customers’ billing address.



Revenue by Geographic Region	For the Fiscal Years ended September 30,
(in thousands)	2018		2017		2016
United States	$	69,543	$	98,520	$	66,436
Asia	10,386		16,713		17,401
Europe	5,422		7,015		7,618
Other	266		647		543
Total revenue	$	85,617	$	122,895	$	91,998

Significant Customers: Significant customers are defined as customers representing greater than 10% of our consolidated revenue. Revenue from two of our significant customers represented an aggregate of 60% of our consolidated revenue for the fiscal year ended September 30, 2018. Revenue from three of our significant customers represented an aggregate of 71% and 61% of our consolidated revenue for the fiscal years ended September 30, 2017 and 2016, respectively.

Long-lived Assets: Long-lived assets consist of property, plant, and equipment. As of September 30, 2018 and 2017, approximately 49% and 46%,respectively, of our long-lived assets were located in the United States. The remaining long-lived assets are primarily located in China.