CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Operating activities
Net loss for the year	$ (52,859)	$ (20,286)
Non-cash adjustments reconciling net loss to operating cash flows
Depreciation of property and equipment	171	123
Stock-based compensation expense	1,823	2,009
Loss on disposal of property and equipment	40	0
Change in lease incentive liability	(70)	85
Expense associated with fair value adjustment of warrant liability	19,799	0
Expense associated with fair value adjustment of share-based liability	1,369	0
Changes in operating assets and liabilities
Other current assets	340	(15)
Accounts payable and accrued liabilities	(68)	1,434
Cash flows used for operating activities	(29,455)	(16,650)
Investing activities
Purchases of marketable securities and term deposits	(68,408)	(29,431)
Disposal and maturities of marketable securities and term deposits	39,138	29,716
Purchase of property and equipment	(204)	(230)
Proceeds from disposal of property and equipment	4	0
Cash flows provided by / (used for) investing activities	(29,470)	55
Financing activities
Proceeds from issuance of common stock, net of issuance costs	54,196	19,886
Proceeds from issuance of warrants, net of issuance costs	0	4,942
Proceeds from exercise of common stock options and warrants	561	0
Costs of reorganization	0	(15)
Cash flows provided by financing activities	54,757	24,813
Increase (decrease) in cash and cash equivalents	(4,168)	8,218
Effect of exchange rate changes on cash and cash equivalents	0	303
Cash and cash equivalents, beginning of year	18,403	9,882
Cash and cash equivalents, end of year	14,235	18,403
Income taxes paid	$ 35	$ 34