Accounts and Bills Receivable, Net

12 Months Ended

Mar. 31, 2012

Accounts and Bills Receivable, Net [Abstract]

ACCOUNTS AND BILLS RECEIVABLE, NET

8. ACCOUNTS AND BILLS RECEIVABLE, NET

	March 31, 2012		March 31, 2011
	US$		US$
Accounts receivable		13,318,143		24,669,150
Less: Allowance for doubtful accounts		—		(768	)
Accounts receivable, net		13,318,143		24,668,382
Bills receivable		16,954,919		10,963,912
Accounts and bills receivable, net		30,273,062		35,632,294

	Fiscal years ended
	March 31, 2012			March 31, 2011			March 31, 2010
	US$			US$			US$
Allowance for doubtful accounts:
Balance at beginning of fiscal year		768			115,024			65,308
Additions		—			768			56,336
Amount written-off as uncollectible during the fiscal year		(768	)		(115,024	)		(6,362	)
Exchange realignment		—			—			(258	)
Balance at end of fiscal year		—			768			115,024