Available-for-sale Securities

12 Months Ended

Mar. 31, 2017

Available-for-sale Securities [Abstract]

Available-for-sale Securities

4. Available-for-sale Securities

The Company acquired corporate bonds issued by Hong Kong listed companies with contractual maturities after 5 years.

	March 31,
	2016		2017
Cost	$	1,614	$	—
Market value	$	1,603	$	—

Unrealized gain (loss) for the years ended March 31, 2015, 2016 and 2017 were $33, $(73) and $(3), respectively.

During the year ended March 31, 2017, all available-for-sales securities were disposed for a consideration of $1,600.