CONDENSED CONSOLIDATED INTERIM BALANCE SHEETS - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Current
Cash and cash equivalents	$ 9,534,251	$ 10,228,964
Prepaid expenses and other	144,914	203,968
Total current assets	9,679,165	10,432,932
Property and equipment	17,171	17,750
Capitalized acquisition costs	55,273,432	55,273,432
Total assets	64,969,768	65,724,114
Current liabilities
Accounts payable	119,183	43,475
Accrued liabilities	223,371	504,478
Total liabilities	342,554	547,953
Shareholders' equity
Share capital, no par value; authorized 500,000,000 shares; 186,990,683 and 187,111,857 shares issued and outstanding at December 31, 2018 and March 31, 2019, respectively	277,968,209	277,852,672
Contributed surplus	34,910,695	34,960,292
Accumulated other comprehensive income	1,368,925	1,162,900
Deficit	(249,620,615)	(248,799,703)
Total shareholders' equity	64,627,214	65,176,161
Total liabilities and shareholders' equity	$ 64,969,768	$ 65,724,114

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).