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Additional Paid-In Capital (Tables)

12 Months Ended

Dec. 31, 2012

Schedule Of Additional Paid-In Capital

		Warrants			Stock options and RSUs			Compensation options			Other paid-in capital			Total additional paid-in capital
As of December 31, 2010	$	10,721		$	4,695		$	-		$	7,565		$	22,981
Convertible notes broker warrants		(336)			-			-			336			-
Warrants exercised		(97)			-			-			-			(97)
Compensation options issued		-			-			588			-			588
Stock options exercised		-			(430)			-			-			(430)
Stock options expired		-			(828)			-			828			-
Stock options amortization		-			1,496			-			-			1,496
Restricted stock units exercised		-			(392)			-			-			(392)
Restricted stock units expensed		-			524			-			-			524
As of December 31, 2011		10,288			5,065			588			8,729			24,670
Warrants exercised		(601)			-			-			601			-
Warrants issued		3,260			-			-			-			3,260
Warrants expired		(11)			-			-			11			-
Stock options amortization		-			1,081			-			-			1,081
Stock options exercised		-			(50)			-			50			-
Stock options expired		-			(1,585)			-			1,585			-
Restricted stock units expensed		-			3,144			-			-			3,144
Compensation options exercised		-			-			(294)			294			-
As of December 31, 2012	$	12,936		$	7,655		$	294		$	11,270		$	32,155

Summary Of Warrant Activity

		Warrants outstanding		Valuation		Weighted average exercise price per share		Weighted average remaining life (yrs.)		Intrinsic value
As of December 31, 2010		16,138,480	$	10,721	$	3.48		4.6	$	57
Convertible notes broker warrants expired		(200,000)		(336)
Exercised		(88,242)		(97)
As of December 31, 2011		15,850,238		10,288	$	3.91		3.7	$	485
Exercised		(619,565)		(601)
Expired		(10,871)		(11)
Issued (Note 8)		4,757,941		3,260
As of December 31, 2012		19,977,743	$	12,936	$	4.25		2.6	$	-

Schedule Of Compensation Options

		Compensation options outstanding			Valuation			Weighted average exercise price per share		Expiry date		Weighted average remaining life (yrs.)
As of December 31, 2010		-		$	-		$	-
Issued		450,000			588			3.30		April 2013		2.0
As of December 31, 2011		450,000			588			3.30		April 2013		1.3
Exercised		(225,000)			(294)
As of December 31, 2012		225,000		$	294		$	3.30		April 2013		0.3

Summary Of The Fair Value Of All Awards issued Under Stock Compensation Plans

		Year ended December 31,
		2012		2011		2010
Stock options	$	1,081	$	1,496	$	382
Restricted stock units		3,144		524		126
	$	4,225	$	2,020	$	508

Summary Of Option Activity

		Number of options		Weighted average exercise price per option		Weighted average remaining contractual term		Aggregate intrinsic value
Outstanding - December 31, 2010		2,588,661	$	3.55		2.90	$	463
Granted		1,246,000		3.04
Exercised		(354,984)		2.48
Cancelled		(85,500)		3.44
Expired/Forfeited		(199,177)		6.90
Outstanding - December 31, 2011		3,195,000		3.27		2.73		1,039
Granted		600,000		2.97
Exercised		(32,500)		2.90
Expired		(660,000)		5.19
Outstanding - December 31, 2012		3,102,500	$	2.80		2.68	$	637
Exercisable - December 31, 2012		2,802,500	$	2.79		2.49	$	626

Summary Of The Status Of Unvested Stock Options

						Number of options		Weighted average grant-date fair value per option
Unvested - December 31, 2010						82,500	$	1.36
Granted						1,246,000		1.60
Vested						(693,000)		1.57
Forfeited						(38,000)		1.51
Unvested - December 31, 2011						597,500		1.60
Granted						600,000		1.47
Vested						(897,000)		1.56
Unvested - December 31, 2012						300,000	$	1.47

Summary Of Restricted Stock Units Activity

		Number of units		Weighted average grant-date fair value per RSU
Unvested - December 31, 2010		175,500	$	2.37
Forfeited		(10,000)		2.37
Vested		(165,500)		2.37
Granted		960,000		3.84
Unvested - December 31, 2011		960,000		3.84
Cancelled		(107,832)		3.07
Granted		1,142,339		3.20
Unvested - December 31 , 2012		1,994,507	$	3.52

Stock Options [Member]

Schedule of Share Based Payments Valuation Assumptions

					Years ended December 31,
			2012				2011				2010
Expected volatility			81.69%	-	83.67%		83.40%	-	83.86%		81.86%	-	82.88%
Risk-free interest rate			0.77%	-	0.88%		0.88%	-	1.60%		1.51%	-	2.88%
Expected life (years)			5				5				5
Dividend yield			N/A				N/A				N/A

Warrants [Member]

Schedule of Share Based Payments Valuation Assumptions

Expected volatility		63.70%	-	67.50%
Risk-free interest rate		0.24%	-	0.26%
Expected life (years)		2
Dividend yield		N/A

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