Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 37,671	$ 67,754
Marketable securities	56,932	51,552
Accounts receivable	209	151
Prepaid expenses and other current assets	1,666	1,875
Total current assets	96,478	121,332
Operating lease right-of-use asset (note 6)	1,036
Property, plant and equipment, net	1,212	991
Deferred tax assets (note 11)	178	105
Total assets	98,904	122,428
Current liabilities:
Accounts payable and accrued expenses (note 7)	7,923	4,119
Operating lease liability, current (note 6)	158
Term loan, current (note 8)	3,616
Total current liabilities	11,697	4,119
Operating lease liability (note 6)	857
Term loan, long-term (note 8)	11,786	15,014
Total liabilities	24,340	19,133
Shareholders’ equity:
Preferred shares, without par value; unlimited shares authorized; issued and outstanding: 1,016,000 (December 31, 2018 - 1,016,000) (note 9)	7,732	7,732
Common shares, without par value; unlimited shares authorized; issued and outstanding: 25,868,594 (December 31, 2018 - 25,750,721) (note 9)	266,425	265,923
Additional paid-in capital	39,676	38,515
Accumulated deficit	(238,279)	(207,885)
Accumulated other comprehensive loss	(990)	(990)
Shareholders' equity	74,564	103,295
Total liabilities and shareholders’ equity	98,904	122,428
Commitments and contingencies (note 12)