Banking facilities (Tables)

12 Months Ended

Mar. 31, 2017

Banking and Thrift [Abstract]

General banking facilities

	Amount available				Amount utilized				Amount unutilized				Terms of banking facilities as of
	March 31,				March 31,				March 31,				March 31, 2017
	2016		2017		2016		2017		2016		2017		Interest	Repayment
	$ in thousands				$ in thousands				$ in thousands				rate	terms
Import and export  facilities
Combined limit		2,564		2,564		1,237		134		1,327		2,430
Including sub-limit of:
Notes payable		2,308		2,308		1,237		134		1,071		2,174	HIBOR* +2.5%	Repayable in full within 120 days
Bank overdrafts		641		641		-		-		641		641	Prime rate + 1%	Repayable on demand
Factoring		2,400		-		-		-		2,400		-	HIBOR* +1.5%	Repayable in 60 days
Other facilities
Export Documentary Credits		641		641		-		-		641		641
Short Term Loans		1,923		1,923		-		-		1,923		1,923	(Note A)	Revolving loan repayable in 30 days
Long Term Loans (1)		1,061		178		506		143		555		35	(Note A)	Term loans repayable monthly over 3 years.
		6,189		5,306		1,743		277		4,446		5,029

Short-term borrowings

	During the fiscal year ended March 31,
	2016			2017
Bank overdrafts		6.00	%		6.00	%
Notes payable		2.94	%		3.13	%
Term Loan in Hong Kong		2.50	%		2.59	%
Term Loan in PRC		6.77	%	unutilized
Factoring		1.74	%	unutilized