Accounts and Bills Receivable, Net (Tables)

12 Months Ended

Mar. 31, 2015

Text Block [Abstract]

Summary of Accounts and Bills Receivable

	March 31, 2015			March 31, 2014
	US$			US$
Accounts receivable		15,221,389			15,833,127
Less: Allowance for doubtful accounts		(90,617	)		(74,413	)
Accounts receivable, net		15,130,772			15,758,714
Bills receivable		5,362,900			5,458,170
Accounts and bills receivable, net		20,493,672			21,216,884

Schedule of Allowance for Doubtful Accounts

	Fiscal years ended
	March 31, 2015		March 31, 2014		March 31, 2013
	US$		US$		US$
Allowance for doubtful accounts:
Balance at beginning of fiscal year		74,413		—		—
Additions		16,204		74,413		—
Balance at end of fiscal year		90,617		74,413		—