7. Stockholders' Equity (deficiency): Schedule of Stockholders' Equity Note, Warrants or Rights (Details) - shares	Jun. 30, 2018	Mar. 31, 2018	Mar. 31, 2017
Broker Warrants
Class of Warrant or Right, Outstanding	321,314	384,152	380,682
Broker Warrants | Less Exercised
Class of Warrant or Right, Outstanding		(62,838)	(222,690)
Broker Warrants | Less Expired
Class of Warrant or Right, Outstanding			(19,935)
Broker Warrants | Add Issued
Class of Warrant or Right, Outstanding			246,095
Consultant Warrants
Class of Warrant or Right, Outstanding	703,722	669,972	916,466
Consultant Warrants | Less Exercised
Class of Warrant or Right, Outstanding			(140,000)
Consultant Warrants | Less Expired
Class of Warrant or Right, Outstanding		(31,250)	(380,300)
Consultant Warrants | Add Issued
Class of Warrant or Right, Outstanding		65,000	273,806
Warrants with Convertible Notes
Class of Warrant or Right, Outstanding	2,734,530	2,734,530
Warrants with Convertible Notes | Add Issued
Class of Warrant or Right, Outstanding			2,734,530
Private Placement Common Share Issuance Warrants
Class of Warrant or Right, Outstanding		1,163,722	390,744
Private Placement Common Share Issuance Warrants | Add Issued
Class of Warrant or Right, Outstanding	1,163,722		772,978
Total
Class of Warrant or Right, Outstanding	4,990,969	4,990,969	1,687,892
Total | Less Exercised
Class of Warrant or Right, Outstanding		(62,838)	(362,690)
Total | Less Expired
Class of Warrant or Right, Outstanding		(31,250)	(400,235)
Total | Add Issued
Class of Warrant or Right, Outstanding		65,000	4,027,409