Segment and Geographic Information (Tables)

9 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Disaggregation of Revenue [Table Text Block]

The Company sells its products primarily to distributors in the Asia Pacific region, who in turn sell these products to end customers. Because the Company's distributors sell their products to end customers which may have a global presence, revenue by geographical location is not necessarily representative of the geographical distribution of sales to end user markets.

The revenue by geographical location in the following tables is based on the country or region in which the products were shipped to:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2020		2019		2020		2019
	(in thousands)				(in thousands)
Hong Kong	$	90,050	$	87,143	$	280,396	$	265,914
China	13,607		18,834		46,690		63,991
South Korea	1,861		260		10,130		568
United States	830		1,684		2,829		5,624
Other countries	504		1,146		2,469		2,967
	$	106,852	$	109,067	$	342,514	$	339,064

The following is a summary of revenue by product type:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2020		2019		2020		2019
	(in thousands)				(in thousands)
Power discrete	$	89,932	$	89,936	$	291,964	$	275,485
Power IC	15,699		17,631		46,078		56,430
Packaging and testing services	1,221		1,500		4,472		7,149
	$	106,852	$	109,067	$	342,514	$	339,064

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

Long-lived assets, net consisting of property, plant and equipment and land use rights, by geographical area are as follows:

	March 31, 2020		June 30, 2019
	(in thousands)
China	$	312,345	$	321,145
United States	99,206		87,817
Other Countries	767		775
	$	412,318	$	409,737