NET LOSS PER SHARE (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2013

Dec. 31, 2012

NET LOSS PER SHARE

Schedule of net loss per share

	THREE MONTHS ENDED JUNE 30,						SIX MONTHS ENDED JUNE 30,
	2013			2012			2013			2012
Net loss and comprehensive loss for the period (in thousands)	$	(8,012	)	$	(4,677	)	$	(12,229	)	$	(8,033	)
Weighted average number of common shares		9,957,725			6,358,266			9,957,725			6,358,266
Basic and diluted net loss per share	$	(0.81	)	$	(0.73	)	$	(1.23	)	$	(1.26	)

	YEAR ENDED DECEMBER 31,
	2012			2011
	(in thousands except for share and per share amounts)
Net loss and comprehensive loss for the year	$	(20,286	)	$	(9,778	)
Weighted average number of shares of common stock		6,762,985			4,944,184
Basic and diluted net loss per share	$	(3.00	)	$	(1.98	)