Financial instruments (Tables)

12 Months Ended

Dec. 31, 2012

Financial Instruments Tables

Fair value of derivative instruments balance

A continuity of the fair value of derivative instruments balance is as follows:

	2012			2011
Balance, start of the year	$	-		$	-
Value attributed to US$ common share purchase warrants issued
in 2012 Financings (see note 7(ii))		409,143			-
Change in fair value during the year		(168,143	)		-
	$	241,000		$	-

Value attributed to warrants

The value attributed to warrants that have been issued by NXT was calculated at issuance using the Black-Scholes valuation model utilizing the following weighted average assumptions:

	2012			2011
Expected dividends paid per common share	Nil			Nil
Expected life in years		1			0.8
Expected volatility in the price of common shares		66	%		94	%
Risk free interest rate		1.0	%		1.5	%
Weighted average fair market value per warrant issued	$	US 0.05		$	0.14