I-Minerals (IMAHF) S-1/A 5 Oct 17 IPO registration (amended) Financial data

Document and Entity Information

Document and Entity Information	3 Months Ended
	Jul. 31, 2017
Document And Entity Information
Entity Registrant Name	I-Minerals Inc
Entity Central Index Key	1,405,663
Document Type	S1
Document Period End Date	Jul. 31, 2017
Amendment Flag	true
Current Fiscal Year End Date	--04-30
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Amendment Description	Amendment No. 1
Document Fiscal Year Focus	2,017

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Current assets
Cash	$ 45,193	$ 287,282	$ 128,353
Receivables	8,889	7,169	8,889
Prepaids	59,814	65,259	59,814
[us-gaap:AssetsCurrent]	113,896	359,710	113,896
Equipment	10,219	9,090	10,219
Mineral property interest	485,813	305,850	485,813
Deposits	14,932	14,932	14,932
TOTAL ASSETS	624,860	689,582	624,860
Current liabilities
Accounts payable and accrued liabilities	844,656	1,168,606	1,023,137
Promissory notes	15,373,956	14,147,964	15,373,956
Derivative liabilities	770,786	1,188,937	770,786
[us-gaap:LiabilitiesCurrent]	16,989,398	16,505,507	16,989,398
Promissory notes	184,813	165,208	184,813
TOTAL LIABILITIES	17,174,211	16,670,715	17,174,211
CAPITAL DEFICIT
Unlimited common shares with no par value Issued and fully paid: 89,484,792 (April 30, 2017 - 89,372,359)	18,697,493	18,658,118	18,697,493
Additional paid-in capital	1,925,415	1,948,384	1,925,415
Commitment to issue shares	9,000	29,625	9,000
Deficit	(37,181,259)	(36,617,260)	(37,181,259)
TOTAL CAPITAL DEFICIT	(16,549,351)	(15,981,133)	(11,473,495)
TOTAL LIABILITIES AND CAPITAL DEFICIT	$ 624,860	$ 689,582	$ 624,860

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Statement of Financial Position [Abstract]
Common Stock, par value
Common Stock, shares authorized
Common Stock, shares issued	89,484,792	89,372,359	86,328,952
Common Stock, shares outstanding	89,484,792	89,372,359	86,328,952

Condensed Consolidated Statemen

Condensed Consolidated Statements of Loss (Unaudited) - USD ($)	3 Months Ended		12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Apr. 30, 2017	Apr. 30, 2016
OPERATING EXPENSES
Amortization	$ 803	$ 599	$ 2,198	$ 6,647
Management and consulting fees	34,731	113,653	319,443	245,755
Mineral property expenditures	118,212	291,509	1,539,709	2,881,230
General and miscellaneous	136,924	235,879	730,885	580,862
Professional fees	95,615	99,236	(92,083)	338,644
[us-gaap:OperatingExpenses]	(386,285)	(740,876)	(2,500,152)	(4,053,138)
OTHER (EXPENSES) INCOME
Foreign exchange (loss) gain	(18,637)	(915)	(2,456)	(3,377)
Loss on settlement of liabilities				(31,512)
Accretion expense	(150,925)	(125,117)	(490,531)	(372,266)
Interest expense	(463,296)	(354,752)	(1,578,631)	(1,161,339)
Change in fair value of derivative liabilities	455,144	(173,334)	(687,979)	1,019,786
LOSS FOR THE PERIOD	$ (563,999)	$ (1,394,994)	$ (5,259,749)	$ (4,601,846)
Loss per share - basic and diluted	$ (0.01)	$ (0.02)	$ (0.06)	$ (0.06)
Weighted average number of shares outstanding	89,398,956	86,818,952	88,064,107	83,299,436

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended		12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Apr. 30, 2017	Apr. 30, 2016
OPERATING ACTIVITIES
Loss for the period	$ (563,999)	$ (1,394,994)	$ (5,259,749)	$ (4,601,846)
Items not involving cash:
Amortization	803	599	2,198	6,647
Stock-based compensation	9,829	72,169	202,886	105,606
Loss on settlement of liabilities				31,512
Accretion expense	150,925	125,117	490,531	372,266
Change in fair value of derivative liabilities	(455,144)	173,334	687,979	(1,019,786)
Unrealized foreign exchange loss	16,950		(3,696)
Change in non-cash operating working capital items:
Receivables	(1,720)	12,679	14,578	11,753
Prepaids	5,445	1,680	(19,761)	207,321
Accounts payable and accrued liabilities	526,717	316,992	1,544,846	1,098,391
Cash flows used in operating activities	(310,194)	(692,424)	(2,340,188)	(3,788,136)
INVESTING ACTIVITIES
Additions to mineral property interest	(179,963)
Purchase of equipment	(1,932)		(3,303)
Cash flows used in investing activities	(181,895)		(3,303)
FINANCING ACTIVITIES
Proceeds from exercise of stock options and warrants		167,736	300,574	4,449
Promissory notes received	250,000	800,000	2,201,846	3,640,000
Cash flows from financing activities	250,000	967,736	2,502,420	3,644,449
INCREASE (DECREASE) IN CASH	(242,089)	275,312	158,929	(143,687)
CASH, BEGINNING OF THE PERIOD	287,282	128,353	128,353	272,040
CASH, END OF THE PERIOD	45,193	403,665	287,282	128,353
SUPPLEMENTAL CASH FLOW INFORMATION
Interest paid
Taxes paid

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Capital Deficit (Equity) (Unaudited) - USD ($)	Common Stock	Commitment to Issue Shares	Additional Paid-In Capital	Accumulated Deficit	Total
Beginning Balance at Apr. 30, 2015	$ 16,586,067	$ 136,735	$ 1,827,780	$ (26,755,665)	$ (8,205,083)
Beginning Balance (in Shares) at Apr. 30, 2015	79,255,728
Shares issued as a debt discount	$ 409,031	(136,735)			272,296
Shares issued as a debt discount (Shares)	1,832,108
Shares issuable as a debt discount		81,112			81,112
Shares issued to settle accounts payable and accrued liabilities	$ 963,718		19,892		983,610
Shares issued to settle accounts payable and accrued liabilities (shares)	5,216,116
Shares issued on exercise of warrants	$ 4,449				4,449
Shares issued on exercise of warrants (shares)	25,000
Share-based payments - vesting			3,333		3,333
Reallocation of vested options to liabilities			(11,366)		(11,366)
Loss for the period				(4,601,846)	(4,601,846)
Ending Balance at Apr. 30, 2016	$ 17,963,265	81,112	1,839,639	(31,357,511)	$ (11,473,495)
Ending Balance (Shares) at Apr. 30, 2016	86,328,952				86,328,952
Shares issued on exercise of options	$ 238,462		(70,726)		$ 167,736
Shares issued on exercise of options (shares)	980,000
Shares issued as a debt discount	$ 214,769	(81,112)			133,657
Shares issued as a debt discount (Shares)	893,323
Shares issuable as a debt discount		29,625			29,625
Shares issued on exercise of warrants	$ 241,622				241,622
Shares issued on exercise of warrants (shares)	1,170,084
Share-based payments - vesting			202,886		202,886
Reallocation of vested options to liabilities			(23,415)		(23,415)
Loss for the period				(5,259,749)	(5,259,749)
Ending Balance at Apr. 30, 2017	$ 18,658,118	29,625	1,948,384	(36,617,260)	$ (15,981,133)
Ending Balance (Shares) at Apr. 30, 2017	89,372,359				89,372,359
Shares issued as a debt discount	$ 39,375	(29,625)			$ 9,750
Shares issued as a debt discount (Shares)	112,433
Shares issuable as a debt discount		9,000			9,000
Share-based payments - vesting			9,829		9,829
Reallocation of vested options to liabilities			(32,798)		(32,798)
Loss for the period				(563,999)	(563,999)
Ending Balance at Jul. 31, 2017	$ 18,697,493	$ 9,000	$ 1,925,415	$ (37,181,259)	$ (16,549,351)
Ending Balance (Shares) at Jul. 31, 2017	89,484,792				89,484,792

NATURE OF BUSINESS AND BASIS OF

NATURE OF BUSINESS AND BASIS OF PRESENTATION AND LIQUIDITY	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Accounting Policies [Abstract]
NATURE OF BUSINESS AND BASIS OF PRESENTATION AND LIQUIDITY	1. NATURE OF BUSINESS AND BASIS OF PRESENTATION AND LIQUIDITY: I-Minerals Inc. (the “Company”) was incorporated under the laws of British Columbia, Canada, in 1984. The Company is listed for trading on the TSX Venture Exchange under the symbol “IMA” and the OTCQX marketplace under the symbol “IMAHF”. The Company’s principal business is the development of the Helmer-Bovill industrial mineral property (“the Property”) located in Latah County, Idaho. Since inception, the Company has been in the exploration stage but moved into the development stage in fiscal 2018. The Helmer-Bovill property is comprised of eleven mineral leases that host potentially economic deposits of feldspar, quartz and kaolinitic clays, primarily kaolinite and halloysite. Basis of Presentation and Liquidity The accompanying unaudited condensed consolidated financial statements have been prepared by the Company in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information as well as Article 10 of Regulation S-X on the basis that the Company will continue as a going concern, which assumes that the Company will be able to meet its obligations and continue its operations for the next year Realization values may be substantially different from carrying values as shown and these financial statements do not give effect to adjustments that would be necessary to the carrying values and classification of assets and liabilities should the Company be unable to continue as a going concern. At July 31, 2017, the Company had not yet achieved profitable operations, had an accumulated deficit of $37,181,259 since inception and expects to incur further losses in the development of its business, all of which casts substantial doubt upon the Company’s ability to continue as a going concern and, therefore, that it may be unable to realize its assets and discharge its liabilities in the normal course of business. The financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. In the opinion of our management, all adjustments (consisting of only normal recurring accruals) considered necessary for a fair presentation of the interim financial statements have been included. Operating results for the three months ended July 31, 2017 are not necessarily indicative of the results that may be expected for the full year ending April 30, 2018. All amounts presented are in US dollars except where otherwise indicated. For further information refer to the financial statements and footnotes thereto for the year ended April 30, 2017 included in the Company’s Annual Report on Form 10-K filed on July 27, 2017. The Company’s ability to continue as a going concern is dependent upon its ability to obtain the necessary financing to develop the Property and to meet its obligations and repay its liabilities arising from normal business operations when they come due. Although the Company has been successful in the past in obtaining financing, there is no assurance that it will be able to obtain adequate financing in the future or that such financing will be on terms advantageous to the Company. The Company is currently receiving funds from a company controlled by a director of the Company through promissory notes (Notes 5 and 11).	1. NATURE OF BUSINESS AND BASIS OF PRESENTATION AND LIQUIDITY: I-Minerals Inc. (the “Company”) was incorporated under the laws of British Columbia, Canada, in 1984. The Company is listed for trading on the TSX Venture Exchange under the symbol “IMA” and the OTCQX marketplace under the symbol “IMAHF”. The Company’s principal business is the development of the Helmer-Bovill industrial mineral property (“the Property”) located in Latah County, Idaho. The Helmer-Bovill property is comprised of eleven mineral leases that host potentially economic deposits of feldspar, quartz and kaolinitic clays, primarily kaolinite and halloysite. Basis of Presentation and Liquidity The accompanying consolidated financial statements have been prepared by the Company in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) on the basis that the Company will continue as a going concern, which assumes that the Company will be able to meet its obligations and continue its operations for the next year Realization values may be substantially different from carrying values as shown and these financial statements do not give effect to adjustments that would be necessary to the carrying values and classification of assets and liabilities should the Company be unable to continue as a going concern. At April 30, 2017, the Company had not yet achieved profitable operations, had an accumulated deficit of $36,617,260 since inception and expects to incur further losses in the development of its business, all of which casts substantial doubt upon the Company’s ability to continue as a going concern and, therefore, that it may be unable to realize its assets and discharge its liabilities in the normal course of business. The Company’s ability to continue as a going concern is dependent upon its ability to obtain the necessary financing to develop the Property and to meet its obligations and repay its liabilities arising from normal business operations when they come due. Although the Company has been successful in the past in obtaining financing, there is no assurance that it will be able to obtain adequate financing in the future or that such financing will be on terms advantageous to the Company. The Company is currently receiving funds from a company controlled by a director of the Company through promissory notes (Notes 5 and 12).

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: Mineral Property and Exploration Costs Costs related to the development of our mineral reserves are capitalized when it has been determined an ore body can be economically developed. The development stage begins when an ore body is determined to be economically recoverable based on proven and probable reserves and appropriate permits are in place, and ends when the production stage or exploitation of reserves begins. Major mine development expenditures are capitalized, including primary development costs such as costs of building access ways, tailings impoundment, development of water supply and infrastructure developments. Exploration costs include those relating to activities carried out (a) in search of previously unidentified mineral deposits, or (b) at undeveloped concessions. Pre-development activities involve costs incurred in the exploration stage that may ultimately benefit production that are expensed due to the lack of evidence of economic development, which is necessary to demonstrate future recoverability of these expenses. Secondary development costs are incurred for preparation of an ore body for production in a specific ore block or work area, providing a relatively short-lived benefit only to the mine area they relate to, and not to the ore body as a whole. Drilling and related costs are either classified as exploration or secondary development, as defined above, and charged to operations as incurred, or capitalized, based on the following criteria: · Whether the costs are incurred to further define mineralization at and adjacent to existing reserve areas or intended to assist with mine planning within a reserve area; · Whether the drilling costs relate to an ore body that has been determined to be commercially mineable, and a decision has been made to put the ore body into commercial production; and · Whether, at the time that the cost is incurred, the expenditure: (a) embodies a probable future benefit that involves a capacity, singly or in combination, with other assets to contribute directly or indirectly to future net cash inflows, (b) we can obtain the benefit and control others’ access to it, and (c) the transaction or event giving rise to our right to or control of the benefit has already occurred. If all of these criteria are met, drilling and related costs are capitalized. Drilling costs not meeting all of these criteria are expensed as incurred. The following factors are considered in determining whether or not the criteria listed above have been met, and capitalization of drilling costs is appropriate: · Completion of a favourable economic study and mine plan for the ore body targeted; · Authorization of development of the ore body by management and/or the Board of Directors; and · All permitting and/or contractual requirements necessary for us to have the right to or control of the future benefit from the targeted ore body have been met. Once production has commenced, capitalized costs will be depleted using the units-of-production method over the estimated life of the proven and probable reserves. If mineral properties are subsequently abandoned or impaired, any capitalized costs will be charged to the Consolidated Statements of Loss in that period. We assess the carrying cost of our mineral properties for impairment whenever information or circumstances indicate the potential for impairment. Such evaluations compare estimated future net cash flows with our carrying costs and future obligations on an undiscounted basis. If it is determined that the future undiscounted cash flows are less than the carrying value of the property, a write down to the estimated fair value is charged to the Consolidated Statements of Loss for the period. Where estimates of future net cash flows are not available and where other conditions suggest impairment, management assesses if the carrying value can be recovered. Financial Instruments and Fair Value Measures The book value of cash, accounts receivable, accounts payable and accrued liabilities approximate their fair values due to the immediate or short-term maturity of those instruments. The fair value hierarchy under US GAAP is based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value which are the following: Level 1 - quoted prices (unadjusted) in active markets for identical assets or liabilities; Level 2 - observable inputs other than Level I, quoted prices for similar assets or liabilities in active prices whose inputs are observable or whose significant value drivers are observable; and Level 3 - assets and liabilities whose significant value drivers are unobservable by little or no market activity and that are significant to the fair value of the assets or liabilities. The Company’s promissory notes are based on Level 2 inputs in the ASC 820 fair value hierarchy. The Company calculated the fair value of these instruments by discounting future cash flows using rates representative of current borrowing rates. At July 31, 2017, the promissory notes had a fair value of $15,552,183 (April 30, 2017 – $13,781,276). The Company had certain Level 3 liabilities required to be recorded at fair value on a recurring basis in accordance with US GAAP as at July 31, 2017 and April 30, 2017. As at July 31, 2017, the Company’s Level 3 liabilities consisted of the warrants issued in connection with the Company’s offering of equity units in a private placement and warrants issued as financing fees as well as the grant of share purchase options to non-employees. The resulting Level 3 liabilities have no active market and are required to be measured at their fair value each reporting period based on information that is unobservable. A summary of the Company’s Level 3 liabilities for the three months ended July 31, 2017 and 2016 is as follows: 2017 $ 2016 $ Warrants (Note 6) Beginning fair value 742,583 326,595 Issuance 4,195 27,750 Change in fair value (306,893) 111,311 Ending fair value 439,885 465,656 Non-employee options (Note 7(c)) Beginning fair value 446,354 189,207 Fair value of options granted - - Fair value of options on vesting 32,798 - Change in fair value (148,251) 62,023 Ending fair value 330,901 251,230 Total Level 3 liabilities 770,786 716,886 Certain assets and liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments only in certain circumstances (for example, when there is evidence of impairment). There were no assets or liabilities measured at fair value on a nonrecurring basis during the periods ended July 31, 2017 and 2016. Earnings (Loss) Per Share The basic loss per common share is computed by dividing net loss available to common stockholders by the weighted average number of common shares outstanding. Diluted loss per common share is computed similar to basic loss per common share except that the denominator is increased to include the number of additional common shares that would have been outstanding if the potential common shares had been issued and if the additional common shares were dilutive. For the three months ended July 31, 2017, loss per share excludes 10,992,130 (2016 – 12,524,012) potentially dilutive common shares (related to outstanding options and warrants as well as shares committed to be issued pursuant to the Third Promissory Notes) as their effect was anti-dilutive.	2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: Basis of Presentation and Principles of Consolidation The consolidated financial statements include the accounts of the Company and its subsidiaries, i-Minerals USA, Inc. and CKD Ventures Ltd. All inter-company accounts and transactions have been eliminated. The Company’s fiscal year-end is April 30 th Use of Estimates The preparation of these consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. The Company regularly evaluates estimates and assumptions related to the useful life and recoverability of long lived assets, stock-based compensation, amortization of Promissory Notes and Second Promissory Notes financing fees, valuation of derivative liabilities, and deferred income tax asset valuation allowances. The Company bases its estimates and assumptions on current facts, historical experience and various other factors that it believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities and the accrual of costs and expenses that are not readily apparent from other sources. The actual results experienced by the Company may differ materially and adversely from the Company’s estimates. To the extent there are material differences between the estimates and the actual results, future results of operations will be affected. Cash The Company considers all highly liquid instruments with maturity of three months or less at the time of issuance to be cash equivalents. As at April 30, 2017 and 2016, the Company had no cash equivalents. Equipment Equipment is carried at cost and is amortized over the estimated useful economic lives using the declining balance method at an annual rate of 30%. Mineral Property Acquisition Costs Mineral property acquisition costs are capitalized when incurred and will be amortized using the units-of-production method following the commencement of production. If a mineral property is subsequently abandoned or impaired, any capitalized costs will be expensed in the period of abandonment or impairment. The Company’s property has yet to reach the production stage. Acquisition costs include cash consideration and the fair market value of shares issued on the acquisition of mineral property claims. Mineral Property Exploration Costs Mineral property exploration costs are expensed as incurred. When it has been determined that a mineral property can be economically developed as a result of establishing proven and probable reserves and all permits are received, the costs incurred to develop such property are capitalized. Such costs will be amortized using the units-of-production method over the estimated useful life of the probable reserve. If mineral properties are subsequently abandoned or impaired, any capitalized costs will be charged to operations. Impairment of Long-Lived Assets Management tests long-lived assets to be held and used for recoverability whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. Impairment is considered to exist if the future cash flows on an undiscounted basis are less than the carrying amount of the long-lived asset. An impairment loss is measured and recorded based on the difference between book value and fair value of the asset group, as determined through the application of a present value technique using expected future cash flows to estimate fair value in the absence of a market price. In estimating future cash flows, assets are grouped at the lowest level for which there is identifiable cash flows that are largely independent of cash flows from other asset groups. Debt Issuance Costs Debt issue costs in connection with debt financings are capitalized as an asset and amortized over the term of the debt using the effective interest method. Debt issuance costs paid to the purchaser of the debt are considered to be a reduction of the debt proceeds and a component of debt discount. Subsequently, the costs comprising this debt discount are amortized as financing fees over the term of the promissory notes using the effective interest method. During the year ended April 30, 2017, the Company amortized financing fees totaling $490,531 (2016 – $372,266). Financial Instruments and Fair Value Measures The book value of cash, accounts receivable, accounts payable and accrued liabilities approximate their fair values due to the immediate or short-term maturity of those instruments. The fair value hierarchy under US GAAP is based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value which are the following: Level 1 - quoted prices (unadjusted) in active markets for identical assets or liabilities; Level 2 - observable inputs other than Level I, quoted prices for similar assets or liabilities in active prices whose inputs are observable or whose significant value drivers are observable; and Level 3 - assets and liabilities whose significant value drivers are unobservable by little or no market activity and that are significant to the fair value of the assets or liabilities. The Company’s promissory notes are based on Level 2 inputs in the ASC 820 fair value hierarchy. The Company calculated the fair value of these instruments by discounting future cash flows using rates representative of current borrowing rates. At April 30, 2017, the promissory notes had a fair value of $13,781,276 (2016 – $10,703,836). The Company had certain Level 3 liabilities required to be recorded at fair value on a recurring basis in accordance with US GAAP as at April 30, 2017 and 2016. As at April 30, 2017, the Company’s Level 3 liabilities consisted of the warrants issued in connection with the Company’s offering of equity units in a private placement and warrants issued as financing fees as well as the grant of share purchase options to non-employees. The resulting Level 3 liabilities have no active market and are required to be measured at their fair value each reporting period based on information that is unobservable. A summary of the Company’s Level 3 liabilities for the years ended April 30, 2017 and 2016 is as follows: 2017 $ 2016 $ Warrants (Note 6) Beginning fair value 326,595 1,128,841 Issuance 70,525 176,493 Reallocation on exercises of warrants (108,784) - Change in fair value 454,247 (978,739) Ending fair value 742,583 326,595 Non-employee options (Note 7(c)) Beginning fair value 189,207 116,615 Fair value of options granted - 102,273 Fair value of options on vesting 23,415 11,366 Change in fair value 233,732 (41,047) Ending fair value 446,354 189,207 Total Level 3 liabilities 1,188,937 515,802 Certain assets and liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments only in certain circumstances (for example, when there is evidence of impairment). There were no assets or liabilities measured at fair value on a nonrecurring basis during the years ended April 30, 2017 and 2016. Earnings (Loss) Per Share The basic loss per common share is computed by dividing net loss available to common stockholders by the weighted average number of common shares outstanding. Diluted loss per common share is computed similar to basic loss per common share except that the denominator is increased to include the number of additional common shares that would have been outstanding if the potential common shares had been issued and if the additional common shares were dilutive. For the year ended April 30, 2017, loss per share excludes 10,993,021 (2016 – 12,027,780) potentially dilutive common shares (related to outstanding options and warrants as well as shares committed to be issued pursuant to the Third Promissory Notes) as their effect was anti-dilutive. Foreign Currency Translation The Company’s functional and reporting currency is the US dollar. Monetary assets and liabilities denominated in foreign currencies are translated using the exchange rate prevailing at the balance sheet date and non-monetary items are translated at exchange rates prevailing when the assets were acquired or obligations incurred. Gains and losses arising on translation or settlement of foreign currency denominated transactions or balances are included in the determination of income. Income Taxes The Company accounts for income taxes using the asset and liability method. The asset and liability method provides that deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities, and for operating loss and tax credit carry-forwards. Deferred tax assets and liabilities are measured using the currently enacted tax rates and laws that will be in effect when the differences are expected to reverse. The Company records a valuation allowance to reduce deferred tax assets to the amount that is believed more likely than not to be realized. The Company has adopted the provisions of FASB ASC 740 "Income Taxes" regarding accounting for uncertainty in income taxes. The Company initially recognizes tax positions in the financial statements when it is more likely than not the position will be sustained upon examination by the tax authorities. Such tax positions are initially and subsequently measured as the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with the tax authority, assuming full knowledge of the position and all relevant facts. Application requires numerous estimates based on available information. The Company considers many factors when evaluating and estimating its tax positions and tax benefits, and its recognized tax positions and tax benefits may not accurately anticipate actual outcomes. As additional information is obtained, there may be a need to periodically adjust the recognized tax positions and tax benefits. These periodic adjustments may have a material impact on the consolidated statements of operations. When applicable, the Company classifies penalties and interest associated with uncertain tax positions as a component of income tax expense in its consolidated Statement of Loss. Stock-Based Compensation The Company accounts for all stock-based payments and awards under the fair value based method. Stock-based payments to non-employees are measured at the fair value of the consideration received, or the fair value of the equity instruments issued, or liabilities incurred, whichever is more reliably measurable. The fair value of stock-based payments to non-employees is periodically re-measured until the counterparty performance is complete, and any change therein is recognized over the vesting period of the award and in the same manner as if the Company had paid cash instead of paying with or using equity based instruments. The cost of the stock-based payments to non-employees that are fully vested and non-forfeitable as at the grant date is measured and recognized at that date, unless there is a contractual term for services in which case such compensation would be amortized over the contractual term. The Company accounts for the granting of stock options to employees using the fair value method whereby all awards to employees will be recorded at fair value on the date of the grant. The fair value of all stock options is expensed over their vesting period with a corresponding increase to additional paid-in capital. Compensation costs for stock-based payments that do not include performance conditions are recognized on a straight-line basis. Compensation cost associated with a share based award having a performance condition is only recognized over the requisite service period if it is probable. Share based awards with a performance condition are accrued on an award by award basis. The Company uses the Black-Scholes option valuation model to calculate the fair value of stock options at the date of the grant. Option pricing models require the input of highly subjective assumptions, including the expected price volatility. Changes in these assumptions can materially affect the fair value estimates. Derivative Liabilities The Company evaluates its financial instruments and other contracts to determine if those contracts or embedded components of those contracts qualify as derivatives to be separately accounted for in accordance with ASC 815. The result of this accounting treatment is that the fair value of the embedded derivative is marked-to-market at each balance sheet date and recorded as a liability and the change in fair value is recorded in the consolidated statement of loss. Upon conversion or exercise of a derivative instrument, the instrument is marked to fair value at the conversion date and then that fair value is reclassified to equity. The classification of derivative instruments, including whether such instruments should be recorded as liabilities or as equity, is re-assessed at the end of each reporting period. Derivative instruments that become subject to reclassification are reclassified at the fair value of the instrument on the reclassification date. Derivative instrument liabilities will be classified in the balance sheet as current or non-current based on whether or not settlement of the derivative instrument is expected within 12 months of the balance sheet date. The Company uses the Black-Scholes option valuation model to value derivative liabilities. This model uses Level 3 inputs in the fair value hierarchy established by ASC 820 Fair Value Measurement. Concentration of Risk The Company is subject to interest rate risk on its debt financings. The Company generally uses fixed interest rates for sources of debt financing with the objective of minimizing its cost of borrowing. Comparative Figures Certain of the prior period’s figures may have been reclassified in conformity with the current period’s financial statement presentation. New Accounting Pronouncements (i) If conditions or events raise substantial doubt about an entity’s ability to continue as a going concern, but the substantial doubt is alleviated as a result of consideration of management’s plans, the entity should disclose information that enables users of the financial statements to understand all of the following: 1. Principal conditions or events that raised substantial doubt about the entity’s ability to continue as a going concern (before consideration of management’s plans). 2. Management’s evaluation of the significance of those conditions or events in relation to the entity’s ability to meet its obligations. 3. Management’s plans that alleviated substantial doubt about the entity’s ability to continue as a going concern. If conditions or events raise substantial doubt about an entity’s ability to continue as a going concern, and substantial doubt is not alleviated after consideration of management’s plans, an entity should include a statement in the footnotes indicating that there is substantial doubt about the entity’s ability to continue as a going concern 1. Principal conditions or events that raise substantial doubt about the entity’s ability to continue as a going concern. 2. Management’s evaluation of the significance of those conditions or events in relation to the entity’s ability to meet its obligations. 3. Management’s plans that are intended to mitigate the conditions or events that raise substantial doubt about the entity’s ability to continue as a going concern. This update will come into effect for the annual period ending after December 15, 2016, and for annual periods and interim periods thereafter. The Company has adopted this standard in its financial statements as at December 31, 2016. See Note 2. (ii)

MINERAL PROPERTY INTEREST

MINERAL PROPERTY INTEREST	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Extractive Industries [Abstract]
MINERAL PROPERTY INTEREST	3. MINERAL PROPERTY INTEREST: Helmer-Bovill Property – Latah County, Idaho In May 2017, the Idaho Department of Lands accepted our operation and reclamation plan. Together with a water rights permit from the Idaho Department of Water Resources, we are able to proceed with development and construction of the mine, subject to obtaining sufficient financing. As a result, Management made the decision to begin capitalizing all development expenditures directly related to the Helmer-Bovill Property. $ Balance at April 30, 2017 305,850 Engineering and consulting 90,028 Metallurgy 74,226 Permitting and environmental 6,000 Other direct costs 9,709 179,963 Balance at July 31, 2017 485,813 The Company has an undivided 100% interest in 11 State of Idaho mineral leases. The State of Idaho mineral leases are subject to a 5% production royalty on gross sales.	3. MINERAL PROPERTY INTEREST: Helmer-Bovill Property – Latah County, Idaho The Company has an undivided 100% interest in 11 State of Idaho mineral leases. The State of Idaho mineral leases are subject to a 5% production royalty on gross sales.

ACCOUNTS PAYABLE AND ACCRUED LI

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Payables and Accruals [Abstract]
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES	4. ACCOUNTS PAYABLE AND ACCRUED LIABILITIES: July 31, 2017 $ April 30, 2017 $ Trade payables 327,118 265,116 Amounts due to related parties (Note 8) 198,844 197,954 Interest payable on promissory notes (Note 5) 318,694 705,536 Total accounts payable and accrued liabilities 844,656 1,168,606	4. ACCOUNTS PAYABLE AND ACCRUED LIABILITIES: April 30, 2017 $ April 30, 2016 $ Trade payables 265,116 307,316 Amounts due to related parties (Note 9) 197,954 189,501 Interest payable on promissory notes (Note 5) 705,536 526,320 Total accounts payable and accrued liabilities 1,168,606 1,023,137

PROMISSORY NOTES

PROMISSORY NOTES	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Debt Disclosure [Abstract]
PROMISSORY NOTES	5. PROMISSORY NOTES: July 31, 2017 $ April 30, 2017 $ Third promissory notes 15,373,956 14,147,964 Fourth promissory notes 184,813 165,208 Total promissory notes 15,558,769 14,313,172 Current 15,373,956 14,147,964 Non-current 184,813 165,208 Third Promissory Notes Effective August 31, 2016, the Company entered into an agreement (dated June 1, 2016) with a company controlled by a director of the Company (the “Lender”) pursuant to which up to an additional $2,965,000 will be advanced to the Company in tranches (the “Third Promissory Notes”). In addition, the First Promissory Notes and the Second Promissory Notes were amended and combined with the Third Promissory Notes with a modified maturity date of December 2, 2017. All other terms of the First Promissory Notes and the Second Promissory Notes remained unchanged. During the year ended April 30, 2017, the Company received $1,815,000 in advances pursuant to the Third Promissory Notes. During the three months ended July 31, 2017, the Company received $250,000 in advances. Subsequent to July 31, 2017, the Company received $300,000 in advances. The following table outlines the estimated cash payments required in order to repay the principal balance of the Third Promissory Notes: 2018 $ 2019 $ 2020 $ 2021 $ 2022 $ Total $ 15,559,324 - - - - 15,559,324 Certain conditions may result in early repayment including immediate repayment in the event a person currently not related to the Company acquires more than 40% of the outstanding common shares of the Company. Debt issuance costs will be amortized over the estimated maturity life of the promissory notes. The promissory notes bear interest at the rate of 12% per annum and during the three months ended July 31, 2017, the Company recorded interest of $457,567 (2016 - $354,752). Interest is payable semi-annually as calculated on May 31 st th The Company and the Lender agreed that the Lender is to receive bonus shares equal to 7.5% of each loan tranche advanced under the Third Promissory Notes divided by the Company’s common share market price. In addition, the Company will issue the Lender an equal number of share purchase warrants for each loan tranche advanced. Each bonus share purchase warrant will entitle the Lender to purchase one common share of the Company at a price equal to the greater of (a) the market price of the Company’s common shares on the date of the advance and (b) the volume weighted average price of the Company’s common shares over the twenty trading days immediately prior to the date of the advance. The bonus share purchase warrants expire on the earlier of (a) December 31, 2018 and (b) the date the advance has been repaid in full, including interest. During the three months ended July 31, 2017, the Company issued 112,433 bonus shares to the Lender at the fair value of $39,375, based on their quoted market price at the date the advances were received, including 88,089 shares having a fair value of $29,625 that the Company had committed to issue as at April 30, 2017. At July 31, 2017, the Company was committed to issuing an additional 31,427 bonus shares to the Lender at the fair value of $9,000. The fair value of the bonus shares was determined by reference to the trading price of the Company’s common shares on the date the advances were received. The fair value of 55,771 bonus share purchase warrants committed to be issued (based on advances received during the period) during the three months ended July 31, 2017 of $4,195 was estimated using the The aggregate finance fees (bonus shares and bonus warrants) are recorded against the promissory notes balance and are being amortized to the Statement of Loss over the life of the promissory notes using the effective interest method. The accretion expense in respect of the debt discount recorded on the issuance of bonus shares and warrants totalled $148,270 for the three months ended July 31, 2017 (2016 - $125,117). The unamortized debt discount as at July 31, 2017 is $185,368 (April 30, 2017 $310,693). The promissory notes are collateralized by the Company’s Helmer-Bovill Property. Fourth Promissory Notes On March 13, 2017, the Company entered into a loan agreement with an arm’s-length lender pursuant to which CAD$250,000 ($186,846) was advanced to the Company (the “Fourth Promissory Notes”). As at July 31, 2017, the balance of the Fourth Promissory Notes was CAD$250,000 ($200,100). The loan bears interest at a rate of 12% per annum and during the three months ended July 31, 2017, the Company recorded interest of $5,729. The Fourth Promissory Notes are unsecured The Company issued 40,761 bonus shares at the fair value of $14,013 and 40,761 bonus share purchase warrants at the fair value of $4,814. The aggregate finance fees (bonus shares and bonus warrants) are recorded against the Fourth Promissory Notes balance and are being amortized to the Statement of Loss over the life of the Fourth Promissory Notes using the effective interest method. The accretion expense in respect of the debt discount recorded on the issuance of bonus shares and warrants totalled $2,655 for the three months ended July 31, 2017. The unamortized debt discount as at July 31, 2017 is $15,287 (April 30, 2017 - $17,942).	5. PROMISSORY NOTES: April 30, 2017 $ April 30, 2016 $ First promissory notes - 5,678,107 Second promissory notes - 4,780,814 Third promissory notes 14,147,964 - Fourth promissory notes 165,208 Total promissory notes 14,313,172 10,458,921 Current 14,147,964 6,587,526 Non-current 165,208 3,871,395 First, Second and Third Promissory Notes On September 13, 2013, January 27, 2014 and December 4, 2014, the Company entered into agreements with a company controlled by a director of the Company (the “Lender”) pursuant to which $5,787,280 was advanced to the Company in tranches (the “First Promissory Notes”). The First Promissory Notes were to mature as to $3,000,000 on December 2, 2016 and the balance due on December 31, 2016. On February 18, 2015 and December 1, 2015, the Company entered into agreements with the Lender pursuant to which $5,457,000 was advanced to the Company in tranches (the “Second Promissory Notes”). The Second Promissory Notes mature were to mature as to $1,000,000 on December 2, 2016, $2,000,000 on June 2, 2017 and the balance due on December 2, 2017. Effective August 31, 2016, the Company entered into an agreement (dated June 1, 2016) with the Lender pursuant to which up to an additional $2,965,000 will be advanced to the Company in tranches (the “Third Promissory Notes”). In addition, the First Promissory Notes and the Second Promissory Notes were amended and combined with the Third Promissory Notes with a modified maturity date of December 2, 2017. All other terms of the First Promissory Notes and the Second Promissory Notes remained unchanged. In accordance with the guidance of ASC 470-50 and ASC 470-60, the Company determined that the June 1, 2016 agreement resulted in a debt modification, not a debt extinguishment or a troubled debt restructuring. The aggregate finance fees relating to the promissory notes are now being amortized to the Statement of Loss over the revised life of the promissory notes using the effective interest method. During the year ended April 30, 2017, the Company received $1,815,000 in advances pursuant to the Third Promissory Notes and the final $200,000 in advances pursuant to the Second Promissory Notes. The following table outlines the estimated cash payments required in order to repay the principal balance of the Third Promissory Notes: 2017 $ 2018 $ 2019 $ 2020 $ 2021 $ Total $ - 14,458,657 - - - 14,458,657 Certain conditions may result in early repayment including immediate repayment in the event a person currently not related to the Company acquires more than 40% of the outstanding common shares of the Company. Debt issuance costs will be amortized over the estimated maturity life of the promissory notes. The promissory notes bear interest at the rate of 12% per annum and during the year ended April 30, 2017, the Company recorded interest of $1,576,365 (2016 - $1,161,339). Interest is payable semi-annually as calculated on May 31 st th In July 2015, the Company settled $395,665 of interest payable on the promissory notes by the issuance of 2,267,685 common shares at the fair value of $427,177 based on their quoted market price at the date of issuance. Accordingly, the Company recorded a loss on settlement of liabilities of $31,512. The interest settled was for the period from December 1, 2014 to May 31, 2015. In December 2015, the Company settled $556,433 of interest payable by the issuance of 2,948,431 common shares at the fair value of $536,541. The Company recorded an increase in additional paid-in capital on extinguishment of debt of $19,892. The interest settled was for the period from June 1, 2015 to November 30, 2015. The Company and the Lender agreed that the Lender is to receive bonus shares equal to 7.5% of each loan tranche advanced under the Second Promissory Notes and Third Promissory Notes divided by the Company’s common share market price. In addition, the Company will issue the Lender an equal number of share purchase warrants for each loan tranche advanced. Each bonus share purchase warrant will entitle the Lender to purchase one common share of the Company at a price equal to the greater of (a) the market price of the Company’s common shares on the date of the advance and (b) the volume weighted average price of the Company’s common shares over the twenty trading days immediately prior to the date of the advance. The bonus share purchase warrants expire on the earlier of (a) December 31, 2018 and (b) the date the advance has been repaid in full, including interest. Advances received under the First Promissory Notes had the same terms other than the number of bonus shares and bonus share purchase warrants being based on 6% of each loan tranche advanced and the bonus share purchase warrants were to expire on December 1, 2016. During the year ended April 30, 2017, the Company issued 852,562 bonus shares to the Lender at the fair value of $200,756, based on their quoted market price at the date the advances were received, including 349,325 shares having a fair value of $81,112 that the Company had committed to issue as at April 30, 2016. At April 30, 2017, the Company was committed to issuing an additional 88,089 bonus shares to the Lender at the fair value of $29,625. The fair value of the bonus shares was determined by reference to the trading price of the Company’s common shares on the date the advances were received. During the year ended April 30, 2016, the Company issued 1,832,108 bonus shares to the Lender at the fair value of $409,031, based on their quoted market price at the date the advances were received, including 693,573 shares having a fair value of $136,735 that the Company had committed to issue as at April 30, 2015. The fair value of 622,569 bonus share purchase warrants committed to be issued (based on advances received during the period) during the year ended April 30, 2017 of $65,711 was estimated using the The aggregate finance fees (bonus shares and bonus warrants) are recorded against the promissory notes balance and are being amortized to the Statement of Loss over the life of the promissory notes using the effective interest method. The accretion expense in respect of the debt discount recorded on the issuance of bonus shares and warrants totalled $489,646 for the year ended April 30, 2017 (2016 - $372,266). The unamortized debt discount as at April 30, 2017 is $310,693 (2016 $585,359). The promissory notes are collateralized by the Company’s Helmer-Bovill Property. Fourth Promissory Notes On March 13, 2017, the Company entered into a loan agreement with an arm’s-length lender pursuant to which CAD$250,000 ($186,846) was advanced to the Company (the “Fourth Promissory Notes”). The loan bears interest at a rate of 12% per annum and during the year ended April 30, 2017, the Company recorded interest of $2,266. The Fourth Promissory Notes are unsecured The Company issued 40,761 bonus shares at the fair value of $14,013 and 40,761 bonus share purchase warrants at the fair value of $4,814. The fair value of the share purchase warrants was estimated using the Black-Scholes option pricing model with the following assumptions: stock price – CAD$0.470; exercise price – CAD$0.460; expected risk-free interest rate – 1.15%; expected life – 1.77 years; expected volatility – 62% and expected dividend rate – 0%. The aggregate finance fees (bonus shares and bonus warrants) are recorded against the Fourth Promissory Notes balance and are being amortized to the Statement of Loss over the life of the Fourth Promissory Notes using the effective interest method. The accretion expense in respect of the debt discount recorded on the issuance of bonus shares and warrants totalled $885 for the year ended April 30, 2017. The unamortized debt discount as at April 30, 2017 is $17,942.

WARRANT LIABILITIES

WARRANT LIABILITIES	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
WARRANT LIABILITIES	6. WARRANT LIABILITIES: The Company has share purchase warrants exercisable into common shares at an exercise price denominated in Canadian dollars. As a variable amount of US dollars are exercisable into a fixed number of common shares, the share purchase warrants are classified as derivative liabilities. The Company records the fair value of the share purchase warrants in accordance with ASC 815, “Derivatives and Hedging”. The Company uses the Black-Scholes option pricing model to calculate the fair values of the derivative liabilities. The fair value of the derivative liability is revalued on each balance sheet date with corresponding gains and losses recorded in the consolidated statement of loss. $ Balance, April 30, 2017 742,583 Bonus warrants issuable pursuant to promissory notes (Note 5) 4,195 Change in fair value of warrant derivatives (306,893) Balance, July 31, 2017 439,885 Warrant Derivative Liabilities At July 31 439,885 742,583 July 31 2017 April 30, 2017 Stock price (CAD$) 0.38 0.48 Exercise price (CAD$) 0.31 0.31 Risk-free interest rate (%) 0.73 1.15 Expected life (years) 1.45 1.70 Expected volatility (%) 51 61 Expected dividends ($) Nil Nil	6. WARRANT LIABILITIES: The Company has share purchase warrants exercisable into common shares at an exercise price denominated in Canadian dollars. As a variable amount of US dollars are exercisable into a fixed number of common shares, the share purchase warrants are classified as derivative liabilities. The Company records the fair value of the share purchase warrants in accordance with ASC 815, “Derivatives and Hedging”. The Company uses the Black-Scholes option pricing model to calculate the fair values of the derivative liabilities. The fair value of the derivative liability is revalued on each balance sheet date with corresponding gains and losses recorded in the consolidated statement of loss. $ Balance, April 30, 2015 1,128,841 Bonus warrants issuable pursuant to promissory notes (Note 5) 176,493 Change in fair value of warrant derivatives (978,739) Balance, April 30, 2016 326,595 Bonus warrants issuable pursuant to promissory notes (Note 5) 70,525 Reallocation on exercise of warrants (108,784) Change in fair value of warrant derivatives 454,247 Balance, April 30, 2017 742,583 Warrant Derivative Liabilities At April 30 742,583 April 30 2017 April 30, 2016 Stock price (CAD$) 0.48 0.23 Exercise price (CAD$) 0.31 0.27 Risk-free interest rate (%) 1.15 0.96 Expected life (years) 1.70 1.41 Expected volatility (%) 61 76 Expected dividends ($) Nil Nil

SHARE CAPITAL

SHARE CAPITAL	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
SHARE CAPITAL	7. SHARE CAPITAL: Common shares a) Authorized: Unlimited number of common shares, without par value. The holders of common shares are entitled to receive dividends which are declared from time to time, and are entitled to one vote per share at meetings of the Company. All shares are ranked equally with regards to the Company’s residual assets. b) Stock transactions: During the three months ended July 31, 2017, the Company completed the following stock transactions: i) On July 11, 2017, the Company issued 112,433 common shares with a fair value of $39,375 including 88,089 common shares having a fair value of $29,625 which the Company had committed to issue at April 30, 2017. The common shares were issued as debt discounts pursuant to the Third Promissory Notes (Note 5). c) Stock options: The Company has granted stock options under the terms of its Stock Option Plan (the “Plan”). The Plan provides that the directors of the Company may grant options to purchase common shares to directors, officers, employees and service providers of the Company on terms that the directors of the Company may determine are within the limitations set forth in the Plan. The maximum number of shares available under the Plan is limited to 10% of the issued common shares. The maximum term of stock options is ten years. All stock options vest on the date of grant, unless otherwise stated. As at July 31, 2017, the Company had 2,393,479 stock options available for grant pursuant to the Plan (April 30, 2017 - 2,382,236). The Company’s stock options outstanding as at July 31, 2017 and April 30, 2017 and the changes for the periods then ended are as follows: Number Outstanding Weighted Average Exercise Price (in CAD$) Balance outstanding at April 30, 2017 6,555,000 0.22 Balance outstanding at July 31, 2017 6,555,000 0.22 Balance exercisable at July 31, 2017 5,925,000 0.22 Summary of stock options outstanding at : Security Number Outstanding Exercise Price (CAD$) Expiry Date Remaining Contractual Life (years) Stock options 1,300,000 0.10 July 30, 2018 1.00 Stock options 260,000 0.15 July 30, 2018 1.00 Stock options 300,000 0.25 July 30, 2018 1.00 Stock options 200,000 0.25 November 19, 2018 1.30 Stock options 150,000 0.25 January 8, 2019 1.44 Stock options 300,000 0.25 May 23, 2019 1.81 Stock options 150,000 0.25 December 16, 2017 0.38 Stock options 1,975,000 0.25 January 29, 2020 2.50 Stock options 200,000 0.25 August 4, 2020 3.01 Stock options 1,000,000 0.25 February 25, 2018 0.57 Stock options 20,000 0.22 May 19, 2018 0.80 Stock options 300,000 0.30 July 21, 2021 3.98 Stock options 400,000 0.30 November 3, 2021 4.26 Non-Employee Stock Options In accordance with the guidance of ASC 815-40-15, stock options awarded to non-employees that are fully vested and exercisable in Canadian dollars are required to be accounted for as derivative liabilities because they are considered not to be indexed to the Company’s stock due to their exercise price being denominated in a currency other than the Company’s functional currency. Stock options awarded to non-employees that are not vested are accounted for as equity awards until the terms associated with their vesting requirements have been met. As at July 31, 2017, there were 200,000 (April 30, 2017 – 300,000) non-employee stock option awards that had not yet vested. The non-employee stock options are accounted for at their respective fair values and are summarized as follows for the three months ended July 31, 2017 and 2016: 2017 $ 2016 $ Fair value of non-employee options, beginning of the period 446,354 189,207 Fair value of options on vesting 32,798 - Change in fair value of non-employee stock options during the period (148,251) 62,023 Fair value of non-employee options, end of the period 330,901 251,230 The Company determined the fair value of its non-employee stock options as at July 31, 2017 and April 30, 2017 using the Black-Scholes option pricing model with the following weighted average assumptions: July 31, 2017 April 30, 2017 Stock price (CAD$) 0.38 0.48 Exercise price (CAD$) 0.23 0.23 Risk-free interest rate (%) 0.90 0.83 Expected life (years) 1.44 1.56 Expected volatility (%) 58 59 Expected dividends ($) Nil Nil The non-employee options are required to be re-valued with the change in fair value of the liability recorded as a gain or loss on the change of fair value of derivative liability and included in other items in the Company’s Consolidated Statements of Loss at the end of each reporting period. The fair value of the options will continue to be classified as a liability until such time as they are exercised, expire or there is an amendment to the respective agreements that renders these financial instruments to be no longer classified as a liability. As at , the unamortized compensation cost of options is $60,675 and the intrinsic value of options expected to vest is $740,304 (CAD$924,225). Share-based payments are classified in the Company’s Statement of Loss during the three months ended July 31, 2017 and 2016 as follows: 2017 $ 2016 $ Management and consulting fees 9,829 72,169 9,829 72,169 d) Share purchase warrants: A summary of fully-exercisable share purchase warrants as at and April 30, 2017 and the changes for the periods then ended are as follows: Number Outstanding Weighted Average Exercise Price (CAD$) Balance at April 30, 2017 4,349,932 0.31 Issued 55,771 0.50 Balance at July 31, 2017 4,405,703 0.31 Summary of warrants outstanding and issuable at : Security Number Outstanding Exercise Price ($CAD) Expiry Date Warrants 730,848 0.22 December 31, 2018 (1) Warrants 242,545 0.23 December 31, 2018 (1) Warrants 194,344 0.24 December 31, 2018 (1) Warrants 37,203 0.245 December 31, 2018 (1) Warrants 393,058 0.255 December 31, 2018 (1) Warrants 192,206 0.259 December 31, 2018 (1) Warrants 126,843 0.265 December 31, 2018 (1) Warrants 198,750 0.272 December 31, 2018 (1) Warrants 95,781 0.291 December 31, 2018 (1) Warrants 100,373 0.295 December 31, 2018 (1) Warrants 101,095 0.298 December 31, 2018 (1) Warrants 49,294 0.299 December 31, 2018 (1) Warrants 150,246 0.310 December 31, 2018 (1) Warrants 58,496 0.335 December 31, 2018 (1) Warrants 30,139 0.405 December 31, 2018 (1) Warrants 40,761 0.460 December 31, 2018 (1) Warrants 25,621 0.470 December 31, 2018 (1) Warrants 63,756 0.475 December 31, 2018 (1) Warrants 24,344 0.540 December 31, 2018 (1) Warrants 1,550,000 0.40 January 31, 2019 Notes: (1) The warrants are exercisable until the earlier of the date disclosed or the date that the promissory note advance, including interest, is repaid (Note 5).	7. SHARE CAPITAL: Common shares a) Authorized: Unlimited number of common shares, without par value. The holders of common shares are entitled to receive dividends which are declared from time to time, and are entitled to one vote per share at meetings of the Company. All shares are ranked equally with regards to the Company’s residual assets. b) Stock transactions: During the year ended April 30, 2017, the Company completed the following stock transactions: i) On June 14, 2016, the Company issued 980,000 common shares on the exercise of stock options with an exercise price of CAD$0.22 per common share resulting gross proceeds of CAD$215,600 ($167,736). ii) On September 23, 2016, the Company issued 486,346 common shares with a fair value of $116,756 including 349,325 shares having a fair value of $81,112 which the Company had committed to issue at April 30, 2016. The common shares were issued as debt discounts pursuant to the Second Promissory Notes and the Third Promissory Notes (Note 5). iii) On December 1, 2016, the Company issued 1,170,084 common shares on the exercise of share purchase warrants with exercise prices ranging from CAD$0.14 to CAD$0.185 for gross proceeds of $132,838. iv) On January 25, 2017, the Company issued 366,216 common shares with a fair value of $84,000. The common shares were issued as debt discounts pursuant to the Third Promissory Notes (Note 5). v) On March 28, 2017, the Company issued 40,761 common shares with a fair value of $14,013. The common shares were issued as debt discounts pursuant to the Fourth Promissory Notes (Note 5). During the year ended April 30, 2016, the Company completed the following stock transactions: i) On July 10, 2015, the Company issued 1,085,297 common shares with a fair value of $228,775 including 693,573 shares having a fair value of $136,735 which the Company had committed to issue at April 30, 2015. The common shares were issued as debt discounts pursuant to the Promissory Notes and the Second Promissory Notes (Note 5). ii) On July 14, 2015, the Company issued 2,267,685 common shares with a fair value of $427,177 as settlement of accrued interest payable on Promissory Notes and Second Promissory Notes (Note 5). iii) On December 15, 2015, the Company issued 2,948,431 common shares with a fair value of $536,541 as settlement of accrued interest payable on Promissory Notes and Second Promissory Notes (Note 5). iv) On January 5, 2016, the Company issued 746,811 common shares with a fair value of $180,256. The common shares were issued as debt discounts pursuant to the Second Promissory Notes (Note 5). v) On January 29, 2016, the Company issued 25,000 shares on the exercise of share purchase warrants. c) Stock options: The Company has granted stock options under the terms of its Stock Option Plan (the “Plan”). The Plan provides that the directors of the Company may grant options to purchase common shares to directors, officers, employees and service providers of the Company on terms that the directors of the Company may determine are within the limitations set forth in the Plan. The maximum number of shares available under the Plan is limited to 10% of the issued common shares. The maximum term of stock options is ten years. All stock options vest on the date of grant, unless otherwise stated. As at April 30, 2017, the Company had 2,382,236 stock options available for grant pursuant to the Plan (2016 - 2,797,895). The Company’s stock options outstanding as at April 30, 2017 and 2016 and the changes for the years then ended are as follows: Number Outstanding Weighted Average Exercise Price (in CAD$) Balance outstanding at April 30, 2015 5,135,000 0.22 Granted 1,200,000 0.25 Expired (500,000) 0.40 Balance outstanding at April 30, 2016 5,835,000 0.21 Granted 1,700,000 0.25 Exercised (980,000) 0.22 Balance outstanding at April 30, 2017 6,555,000 0.22 Balance exercisable at April 30, 2017 5,825,000 0.22 The intrinsic value of options exercised during the year ended was CAD$88,200 based on a stock price of CAD$0.31 on the date of exercise. Summary of stock options outstanding at : Security Number Outstanding Exercise Price (CAD$) Expiry Date Remaining Contractual Life (years) Stock options 1,300,000 0.10 July 30, 2018 1.25 Stock options 260,000 0.15 July 30, 2018 1.25 Stock options 300,000 0.25 July 30, 2018 1.25 Stock options 200,000 0.25 November 19, 2018 1.56 Stock options 150,000 0.25 January 8, 2019 1.69 Stock options 300,000 0.25 May 23, 2019 2.06 Stock options 150,000 0.25 December 16, 2017 0.63 Stock options 1,975,000 0.25 January 29, 2020 2.75 Stock options 200,000 0.25 August 4, 2020 3.27 Stock options 1,000,000 0.25 February 25, 2018 0.82 Stock options 20,000 0.22 May 19, 2018 1.05 Stock options 300,000 0.30 July 21, 2021 4.23 Stock options 400,000 0.30 November 3, 2021 4.52 The weighted average grant date fair value of stock options granted during the year ended April 30, 2017 of CAD$0.14 (2016 – CAD$0.11) was estimated using the Black-Scholes option pricing model with the following weighted average assumptions: 2017 2016 Stock price (CAD$) 0.25 0.23 Exercise price (CAD$) 0.25 0.25 Risk-free interest rate (%) 1.1 1.0 Expected life (years) 3.2 2.5 Expected volatility (%) 85 86 Expected dividends ($) Nil Nil Expected volatility was determined by reference to the historical volatility of the Company’s common shares trading on the TSX Venture Exchange. Non-Employee Stock Options In accordance with the guidance of ASC 815-40-15, stock options awarded to non-employees that are fully vested and exercisable in Canadian dollars are required to be accounted for as derivative liabilities because they are considered not to be indexed to the Company’s stock due to their exercise price being denominated in a currency other than the Company’s functional currency. Stock options awarded to non-employees that are not vested are accounted for as equity awards until the terms associated with their vesting requirements have been met. As at April 30, 2017, there were 300,000 (2016 - nil) non-employee stock option awards that had not yet vested. The non-employee stock options are accounted for at their respective fair values and are summarized as follows for the years ended April 30, 2017and 2016: 2017 $ 2016 $ Fair value of non-employee options, beginning of the period 189,207 116,615 Fair value of options granted - 102,273 Fair value of options on vesting 23,415 11,366 Change in fair value of non-employee stock options during the period 233,732 (41,047) Fair value of non-employee options, end of the period 446,354 189,207 The Company determined the fair value of its non-employee stock options as at April 30, 2017 and 2016 using the Black-Scholes option pricing model with the following weighted average assumptions: 2017 2016 Stock price (CAD$) 0.48 0.23 Exercise price (CAD$) 0.23 0.23 Risk-free interest rate (%) 0.83 1.34 Expected life (years) 1.56 2.43 Expected volatility (%) 59 87 Expected dividends ($) Nil Nil The non-employee options are required to be re-valued with the change in fair value of the liability recorded as a gain or loss on the change of fair value of derivative liability and included in other items in the Company’s Consolidated Statements of Loss at the end of each reporting period. The fair value of the options will continue to be classified as a liability until such time as they are exercised, expire or there is an amendment to the respective agreements that renders these financial instruments to be no longer classified as a liability. As at , the unamortized compensation cost of options is $76,732 and the intrinsic value of options expected to vest is $1,098,333 (CAD$1,499,225). Share-based payments are classified in the Company’s Statement of Loss during the years ended April 30, 2017 and 2016 as follows: 2017 $ 2016 $ Management and consulting fees 202,886 105,606 202,886 105,606 d) Share purchase warrants: A summary of fully-exercisable share purchase warrants as at and April 30, 2016 and the changes for the years then ended are as follows: Number Outstanding Weighted Average Exercise Price (CAD$) Balance at April 30, 2015 24,555,595 0.37 Issued 1,456,617 0.25 Expired (20,175,000) 0.40 Exercised (25,000) 0.25 Balance at April 30, 2016 5,812,212 0.27 Issued 663,330 0.33 Exercised (1,170,084) 0.15 Expired (955,526) 0.26 Balance at April 30, 2017 4,349,932 0.31 Summary of warrants outstanding and issuable at : Security Number Outstanding Exercise Price ($CAD) Expiry Date Warrants 730,848 0.22 December 31, 2018 (1) Warrants 242,545 0.23 December 31, 2018 (1) Warrants 194,344 0.24 December 31, 2018 (1) Warrants 37,203 0.245 December 31, 2018 (1) Warrants 393,058 0.255 December 31, 2018 (1) Warrants 192,206 0.259 December 31, 2018 (1) Warrants 126,843 0.265 December 31, 2018 (1) Warrants 198,750 0.272 December 31, 2018 (1) Warrants 95,781 0.291 December 31, 2018 (1) Warrants 100,373 0.295 December 31, 2018 (1) Warrants 101,095 0.298 December 31, 2018 (1) Warrants 49,294 0.299 December 31, 2018 (1) Warrants 150,246 0.310 December 31, 2018 (1) Warrants 58,496 0.335 December 31, 2018 (1) Warrants 30,139 0.405 December 31, 2018 (1) Warrants 40,761 0.460 December 31, 2018 (1) Warrants 25,621 0.470 December 31, 2018 (1) Warrants 32,329 0.475 December 31, 2018 (1) Warrants 1,550,000 0.40 January 31, 2019 Notes: (1) The warrants are exercisable until the earlier of the date disclosed or the date that the promissory note advance, including interest, is repaid (Note 5).

INCOME TAXES

INCOME TAXES	12 Months Ended
	Apr. 30, 2017
Income Tax Disclosure [Abstract]
INCOME TAXES	8. INCOME TAXES: A reconciliation of the income tax provision computed at statutory rates to the reported income tax provision for the years ended April 30, 2017 and 2016 is as follows: 2017 $ 2016 $ Statutory tax rate 26.00% 26.00% Loss before income taxes (5,259,749) (4,601,846) Expected income tax recovery (1,368,000) (1,196,000) Increase (decrease) in income tax recovery resulting from: Derivative liability 179,000 (265,000) Other permanent differences 181,000 126,000 Share issue costs (52,000) (106,000) Foreign income taxed at foreign rate (157,000) (277,000) Impact of under-provision in previous year (140,000) - Expiry of loss carry forward 58,000 - Increase in valuation allowance 1,299,000 1,718,000 Income tax recovery - - The significant components of the Company’s deferred income tax assets and liabilities after applying enacted corporate tax rates at April 30, 2017 and 2016 are as follows: 2017 $ 2016 $ Deferred income tax assets / (liabilities) Operating losses carried forward 8,602,000 7,455,000 Resource property 1,441,000 1,284,000 Share issuance costs 134,000 140,000 Other 22,000 21,000 Valuation allowance (10,199,000) (8,900,000) Net deferred income tax asset - - At April 30, 2017, the Company has accumulated non-capital losses totalling $10,408,000 (2016 - $8,310,000) in Canada and net operating losses of $16,846,000 (2016 - $15,123,000) in the USA, which are available to carryforward and offset future years’ taxable income. The losses expire in various amounts from 2022 to 2037. Uncertain Tax Positions The Company has adopted certain provisions of ASC 740, “Income Taxes”, which prescribes a recognition threshold and measurement attribute for the recognition and measurement of tax positions taken or expected to be taken in income tax returns. The provisions also provide guidance on the de-recognition of income tax assets and liabilities, classification of current and deferred income tax assets and liabilities, and accounting for interest and penalties associated with tax positions. The Company files income tax returns in the U.S. federal jurisdiction, various state and foreign jurisdictions. The Company’s tax returns are subject to tax examinations by U.S. federal and state tax authorities, or examinations by foreign tax authorities until respective statute of limitation. The Company currently has no tax years under examination. The Company is subject to tax examinations by tax authorities for all taxation years commencing after 2003. At April 30, 2017, the Company does not have an accrual relating to uncertain tax positions. It is not anticipated that unrecognized tax benefits would significantly increase or decrease within 12 months of the reporting date. Provision has not been made for U.S. or additional foreign taxes on undistributed earnings of foreign subsidiaries. Such earnings have been and will continue to be reinvested but could become subject to additional tax if they were remitted as dividends, or were loaned to the Company affiliate. It is not practicable to determine the amount of additional tax, if any, that might be payable on the undistributed foreign earnings.

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	8. RELATED PARTY TRANSACTIONS: During the three months ended July 31, 2017, management and consulting fees of $24,000 (2016 - $24,026) were charged by RJG Capital Corporation, a wholly-owned company of W. Barry Girling, Director. Wayne Moorhouse, Director, charged $902 (2016 - $770) in management and consulting fees. $8,076 (2016 - $10,087) was charged by Malaspina Consultants Inc. for the services of Matt Anderson, CFO, and are included in professional fees. John Theobald, Director, charged $29,048 (2016 - $nil) in mineral property expenditures. Included in accounts payable and accrued liabilities are amounts owed to directors or officers or companies controlled by them. As at July 31, 2017, the amount was $198,844 (April 30, 2017 – The promissory notes received from a company controlled by a director (Notes 5 and 11) are related party transactions.	9. RELATED PARTY TRANSACTIONS: During the year ended April 30, 2016, the Company settled $952,098 of interest payable on the promissory notes owed to a company controlled by a Director by issuing 5,216,116 common shares at the fair value of $963,718 (Note 5). During the year ended April 30, 2017, management and consulting fees of $96,000 (2016 - $96,002) were charged by RJG Capital Corporation, a wholly-owned company of W. Barry Girling, Director. Wayne Moorhouse, Director, charged $2,911 (2016 - $3,093) in management and consulting fees. $23,759 (2016 - $23,557) was charged by Malaspina Consultants Inc. for the services of Matt Anderson, CFO, and are included in professional fees. John Theobald, Director, charged $54,124 (2016 - $nil) in mineral property expenditures. Included in accounts payable and accrued liabilities are amounts owed to directors or officers or companies controlled by them. As at April 30, 2017, the amount was $197,954 (2016 – The promissory notes received from a company controlled by a director (Notes 5 and 12) are related party transactions.

SEGMENT DISCLOSURES

SEGMENT DISCLOSURES	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Segment Reporting [Abstract]
SEGMENT DISCLOSURES	9. SEGMENT DISCLOSURES: The Company considers its business to comprise a single operating segment being the exploration and development of its resource property. Substantially all of the Company’s long-term assets and operations are located in Latah County, Idaho.	10. SEGMENT DISCLOSURES: The Company considers its business to comprise a single operating segment being the exploration of its resource property. Substantially all of the Company’s long-term assets and operations are located in Latah County, Idaho.

NON-CASH TRANSACTIONS

NON-CASH TRANSACTIONS	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Supplemental Cash Flow Elements [Abstract]
NON-CASH TRANSACTIONS	10. NON-CASH TRANSACTIONS: Investing and financing activities that affect recognized assets or liabilities but that do not result in cash receipts or cash payments are excluded from the consolidated statements of cash flows. During the three months ended July 31, 2017, the following transactions were excluded from the consolidated statement of cash flows: a) The commitment to issue 55,771 common shares at the fair value of $18,750 and 55,771 warrants at the fair value of $4,195 pursuant to the promissory notes. During the , the following transactions were excluded from the consolidated statement of cash flows: a) The commitment to issue 269,359 common shares at the fair value of $58,144 and 269,359 warrants at the fair value of $27,750 pursuant to the promissory notes.	11. NON-CASH TRANSACTIONS: Investing and financing activities that affect recognized assets or liabilities but that do not result in cash receipts or cash payments are excluded from the consolidated statements of cash flows. During the year ended April 30, 2017, the following transactions were excluded from the consolidated statement of cash flows: a) The commitment to issue 663,330 common shares at the fair value of $163,282 and 663,330 warrants at the fair value of $70,525 pursuant to the promissory notes. During the , the following transactions were excluded from the consolidated statement of cash flows: a) The issuance by the Company of 5,216,116 common shares at the fair value of $963,718 as payment of interest on the promissory notes; b) The commitment to issue 1,487,860 common shares at the fair value of $353,408 and 1,487,860 warrants at the fair value of $176,493 pursuant to the promissory notes.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	11. SUBSEQUENT EVENTS: Subsequent to : i) The Company received an aggregate of $300,000 of Third Promissory Notes.	12. SUBSEQUENT EVENTS: Subsequent to : i) The Company received an aggregate of $250,000 of Third Promissory Notes; and, ii) On July 10, 2017, the Company issued 112,433 bonus shares to the Lender pursuant to the terms of the Third Promissory Notes (Note 5).

SUMMARY OF SIGNIFICANT ACCOUN19

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Accounting Policies [Abstract]
Basis of Presentation and Principles of Consolidation		Basis of Presentation and Principles of Consolidation The consolidated financial statements include the accounts of the Company and its subsidiaries, i-Minerals USA, Inc. and CKD Ventures Ltd. All inter-company accounts and transactions have been eliminated. The Company’s fiscal year-end is April 30 th
Use of Estimates		Use of Estimates The preparation of these consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. The Company regularly evaluates estimates and assumptions related to the useful life and recoverability of long lived assets, stock-based compensation, amortization of Promissory Notes and Second Promissory Notes financing fees, valuation of derivative liabilities, and deferred income tax asset valuation allowances. The Company bases its estimates and assumptions on current facts, historical experience and various other factors that it believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities and the accrual of costs and expenses that are not readily apparent from other sources. The actual results experienced by the Company may differ materially and adversely from the Company’s estimates. To the extent there are material differences between the estimates and the actual results, future results of operations will be affected.
Cash		Cash The Company considers all highly liquid instruments with maturity of three months or less at the time of issuance to be cash equivalents. As at April 30, 2017 and 2016, the Company had no cash equivalents.
Equipment		Equipment Equipment is carried at cost and is amortized over the estimated useful economic lives using the declining balance method at an annual rate of 30%.
Mineral Property and Exploration Costs	Mineral Property and Exploration Costs Costs related to the development of our mineral reserves are capitalized when it has been determined an ore body can be economically developed. The development stage begins when an ore body is determined to be economically recoverable based on proven and probable reserves and appropriate permits are in place, and ends when the production stage or exploitation of reserves begins. Major mine development expenditures are capitalized, including primary development costs such as costs of building access ways, tailings impoundment, development of water supply and infrastructure developments. Exploration costs include those relating to activities carried out (a) in search of previously unidentified mineral deposits, or (b) at undeveloped concessions. Pre-development activities involve costs incurred in the exploration stage that may ultimately benefit production that are expensed due to the lack of evidence of economic development, which is necessary to demonstrate future recoverability of these expenses. Secondary development costs are incurred for preparation of an ore body for production in a specific ore block or work area, providing a relatively short-lived benefit only to the mine area they relate to, and not to the ore body as a whole. Drilling and related costs are either classified as exploration or secondary development, as defined above, and charged to operations as incurred, or capitalized, based on the following criteria: · Whether the costs are incurred to further define mineralization at and adjacent to existing reserve areas or intended to assist with mine planning within a reserve area; · Whether the drilling costs relate to an ore body that has been determined to be commercially mineable, and a decision has been made to put the ore body into commercial production; and · Whether, at the time that the cost is incurred, the expenditure: (a) embodies a probable future benefit that involves a capacity, singly or in combination, with other assets to contribute directly or indirectly to future net cash inflows, (b) we can obtain the benefit and control others’ access to it, and (c) the transaction or event giving rise to our right to or control of the benefit has already occurred. If all of these criteria are met, drilling and related costs are capitalized. Drilling costs not meeting all of these criteria are expensed as incurred. The following factors are considered in determining whether or not the criteria listed above have been met, and capitalization of drilling costs is appropriate: · Completion of a favourable economic study and mine plan for the ore body targeted; · Authorization of development of the ore body by management and/or the Board of Directors; and · All permitting and/or contractual requirements necessary for us to have the right to or control of the future benefit from the targeted ore body have been met. Once production has commenced, capitalized costs will be depleted using the units-of-production method over the estimated life of the proven and probable reserves. If mineral properties are subsequently abandoned or impaired, any capitalized costs will be charged to the Consolidated Statements of Loss in that period. We assess the carrying cost of our mineral properties for impairment whenever information or circumstances indicate the potential for impairment. Such evaluations compare estimated future net cash flows with our carrying costs and future obligations on an undiscounted basis. If it is determined that the future undiscounted cash flows are less than the carrying value of the property, a write down to the estimated fair value is charged to the Consolidated Statements of Loss for the period. Where estimates of future net cash flows are not available and where other conditions suggest impairment, management assesses if the carrying value can be recovered.
Mineral Property Acquisition Costs		Mineral Property Acquisition Costs Mineral property acquisition costs are capitalized when incurred and will be amortized using the units-of-production method following the commencement of production. If a mineral property is subsequently abandoned or impaired, any capitalized costs will be expensed in the period of abandonment or impairment. The Company’s property has yet to reach the production stage. Acquisition costs include cash consideration and the fair market value of shares issued on the acquisition of mineral property claims.
Mineral Property Exploration Costs		Mineral Property Exploration Costs Mineral property exploration costs are expensed as incurred. When it has been determined that a mineral property can be economically developed as a result of establishing proven and probable reserves and all permits are received, the costs incurred to develop such property are capitalized. Such costs will be amortized using the units-of-production method over the estimated useful life of the probable reserve. If mineral properties are subsequently abandoned or impaired, any capitalized costs will be charged to operations.
Impairment of Long-Lived Assets		Impairment of Long-Lived Assets Management tests long-lived assets to be held and used for recoverability whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. Impairment is considered to exist if the future cash flows on an undiscounted basis are less than the carrying amount of the long-lived asset. An impairment loss is measured and recorded based on the difference between book value and fair value of the asset group, as determined through the application of a present value technique using expected future cash flows to estimate fair value in the absence of a market price. In estimating future cash flows, assets are grouped at the lowest level for which there is identifiable cash flows that are largely independent of cash flows from other asset groups.
Debt Issuance Costs		Debt Issuance Costs Debt issue costs in connection with debt financings are capitalized as an asset and amortized over the term of the debt using the effective interest method. Debt issuance costs paid to the purchaser of the debt are considered to be a reduction of the debt proceeds and a component of debt discount. Subsequently, the costs comprising this debt discount are amortized as financing fees over the term of the promissory notes using the effective interest method. During the year ended April 30, 2017, the Company amortized financing fees totaling $490,531 (2016 – $372,266).
Financial Instruments and Fair Value Measures	Financial Instruments and Fair Value Measures The book value of cash, accounts receivable, accounts payable and accrued liabilities approximate their fair values due to the immediate or short-term maturity of those instruments. The fair value hierarchy under US GAAP is based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value which are the following: Level 1 - quoted prices (unadjusted) in active markets for identical assets or liabilities; Level 2 - observable inputs other than Level I, quoted prices for similar assets or liabilities in active prices whose inputs are observable or whose significant value drivers are observable; and Level 3 - assets and liabilities whose significant value drivers are unobservable by little or no market activity and that are significant to the fair value of the assets or liabilities. The Company’s promissory notes are based on Level 2 inputs in the ASC 820 fair value hierarchy. The Company calculated the fair value of these instruments by discounting future cash flows using rates representative of current borrowing rates. At July 31, 2017, the promissory notes had a fair value of $15,552,183 (April 30, 2017 – $13,781,276). The Company had certain Level 3 liabilities required to be recorded at fair value on a recurring basis in accordance with US GAAP as at July 31, 2017 and April 30, 2017. As at July 31, 2017, the Company’s Level 3 liabilities consisted of the warrants issued in connection with the Company’s offering of equity units in a private placement and warrants issued as financing fees as well as the grant of share purchase options to non-employees. The resulting Level 3 liabilities have no active market and are required to be measured at their fair value each reporting period based on information that is unobservable. A summary of the Company’s Level 3 liabilities for the three months ended July 31, 2017 and 2016 is as follows: 2017 $ 2016 $ Warrants (Note 6) Beginning fair value 742,583 326,595 Issuance 4,195 27,750 Change in fair value (306,893) 111,311 Ending fair value 439,885 465,656 Non-employee options (Note 7(c)) Beginning fair value 446,354 189,207 Fair value of options granted - - Fair value of options on vesting 32,798 - Change in fair value (148,251) 62,023 Ending fair value 330,901 251,230 Total Level 3 liabilities 770,786 716,886 Certain assets and liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments only in certain circumstances (for example, when there is evidence of impairment). There were no assets or liabilities measured at fair value on a nonrecurring basis during the periods ended July 31, 2017 and 2016.	Financial Instruments and Fair Value Measures The book value of cash, accounts receivable, accounts payable and accrued liabilities approximate their fair values due to the immediate or short-term maturity of those instruments. The fair value hierarchy under US GAAP is based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value which are the following: Level 1 - quoted prices (unadjusted) in active markets for identical assets or liabilities; Level 2 - observable inputs other than Level I, quoted prices for similar assets or liabilities in active prices whose inputs are observable or whose significant value drivers are observable; and Level 3 - assets and liabilities whose significant value drivers are unobservable by little or no market activity and that are significant to the fair value of the assets or liabilities. The Company’s promissory notes are based on Level 2 inputs in the ASC 820 fair value hierarchy. The Company calculated the fair value of these instruments by discounting future cash flows using rates representative of current borrowing rates. At April 30, 2017, the promissory notes had a fair value of $13,781,276 (2016 – $10,703,836). The Company had certain Level 3 liabilities required to be recorded at fair value on a recurring basis in accordance with US GAAP as at April 30, 2017 and 2016. As at April 30, 2017, the Company’s Level 3 liabilities consisted of the warrants issued in connection with the Company’s offering of equity units in a private placement and warrants issued as financing fees as well as the grant of share purchase options to non-employees. The resulting Level 3 liabilities have no active market and are required to be measured at their fair value each reporting period based on information that is unobservable. A summary of the Company’s Level 3 liabilities for the years ended April 30, 2017 and 2016 is as follows: 2017 $ 2016 $ Warrants (Note 6) Beginning fair value 326,595 1,128,841 Issuance 70,525 176,493 Reallocation on exercises of warrants (108,784) - Change in fair value 454,247 (978,739) Ending fair value 742,583 326,595 Non-employee options (Note 7(c)) Beginning fair value 189,207 116,615 Fair value of options granted - 102,273 Fair value of options on vesting 23,415 11,366 Change in fair value 233,732 (41,047) Ending fair value 446,354 189,207 Total Level 3 liabilities 1,188,937 515,802 Certain assets and liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments only in certain circumstances (for example, when there is evidence of impairment). There were no assets or liabilities measured at fair value on a nonrecurring basis during the years ended April 30, 2017 and 2016.
Earnings (Loss) Per Share	Earnings (Loss) Per Share The basic loss per common share is computed by dividing net loss available to common stockholders by the weighted average number of common shares outstanding. Diluted loss per common share is computed similar to basic loss per common share except that the denominator is increased to include the number of additional common shares that would have been outstanding if the potential common shares had been issued and if the additional common shares were dilutive. For the three months ended July 31, 2017, loss per share excludes 10,992,130 (2016 – 12,524,012) potentially dilutive common shares (related to outstanding options and warrants as well as shares committed to be issued pursuant to the Third Promissory Notes) as their effect was anti-dilutive.	Earnings (Loss) Per Share The basic loss per common share is computed by dividing net loss available to common stockholders by the weighted average number of common shares outstanding. Diluted loss per common share is computed similar to basic loss per common share except that the denominator is increased to include the number of additional common shares that would have been outstanding if the potential common shares had been issued and if the additional common shares were dilutive. For the year ended April 30, 2017, loss per share excludes 10,993,021 (2016 – 12,027,780) potentially dilutive common shares (related to outstanding options and warrants as well as shares committed to be issued pursuant to the Third Promissory Notes) as their effect was anti-dilutive.
Foreign Currency Translation		Foreign Currency Translation The Company’s functional and reporting currency is the US dollar. Monetary assets and liabilities denominated in foreign currencies are translated using the exchange rate prevailing at the balance sheet date and non-monetary items are translated at exchange rates prevailing when the assets were acquired or obligations incurred. Gains and losses arising on translation or settlement of foreign currency denominated transactions or balances are included in the determination of income.
Income Taxes		Income Taxes The Company accounts for income taxes using the asset and liability method. The asset and liability method provides that deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities, and for operating loss and tax credit carry-forwards. Deferred tax assets and liabilities are measured using the currently enacted tax rates and laws that will be in effect when the differences are expected to reverse. The Company records a valuation allowance to reduce deferred tax assets to the amount that is believed more likely than not to be realized. The Company has adopted the provisions of FASB ASC 740 "Income Taxes" regarding accounting for uncertainty in income taxes. The Company initially recognizes tax positions in the financial statements when it is more likely than not the position will be sustained upon examination by the tax authorities. Such tax positions are initially and subsequently measured as the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with the tax authority, assuming full knowledge of the position and all relevant facts. Application requires numerous estimates based on available information. The Company considers many factors when evaluating and estimating its tax positions and tax benefits, and its recognized tax positions and tax benefits may not accurately anticipate actual outcomes. As additional information is obtained, there may be a need to periodically adjust the recognized tax positions and tax benefits. These periodic adjustments may have a material impact on the consolidated statements of operations. When applicable, the Company classifies penalties and interest associated with uncertain tax positions as a component of income tax expense in its consolidated Statement of Loss.
Stock-Based Compensation		Stock-Based Compensation The Company accounts for all stock-based payments and awards under the fair value based method. Stock-based payments to non-employees are measured at the fair value of the consideration received, or the fair value of the equity instruments issued, or liabilities incurred, whichever is more reliably measurable. The fair value of stock-based payments to non-employees is periodically re-measured until the counterparty performance is complete, and any change therein is recognized over the vesting period of the award and in the same manner as if the Company had paid cash instead of paying with or using equity based instruments. The cost of the stock-based payments to non-employees that are fully vested and non-forfeitable as at the grant date is measured and recognized at that date, unless there is a contractual term for services in which case such compensation would be amortized over the contractual term. The Company accounts for the granting of stock options to employees using the fair value method whereby all awards to employees will be recorded at fair value on the date of the grant. The fair value of all stock options is expensed over their vesting period with a corresponding increase to additional paid-in capital. Compensation costs for stock-based payments that do not include performance conditions are recognized on a straight-line basis. Compensation cost associated with a share based award having a performance condition is only recognized over the requisite service period if it is probable. Share based awards with a performance condition are accrued on an award by award basis. The Company uses the Black-Scholes option valuation model to calculate the fair value of stock options at the date of the grant. Option pricing models require the input of highly subjective assumptions, including the expected price volatility. Changes in these assumptions can materially affect the fair value estimates.
Derivative Liabilities		Derivative Liabilities The Company evaluates its financial instruments and other contracts to determine if those contracts or embedded components of those contracts qualify as derivatives to be separately accounted for in accordance with ASC 815. The result of this accounting treatment is that the fair value of the embedded derivative is marked-to-market at each balance sheet date and recorded as a liability and the change in fair value is recorded in the consolidated statement of loss. Upon conversion or exercise of a derivative instrument, the instrument is marked to fair value at the conversion date and then that fair value is reclassified to equity. The classification of derivative instruments, including whether such instruments should be recorded as liabilities or as equity, is re-assessed at the end of each reporting period. Derivative instruments that become subject to reclassification are reclassified at the fair value of the instrument on the reclassification date. Derivative instrument liabilities will be classified in the balance sheet as current or non-current based on whether or not settlement of the derivative instrument is expected within 12 months of the balance sheet date. The Company uses the Black-Scholes option valuation model to value derivative liabilities. This model uses Level 3 inputs in the fair value hierarchy established by ASC 820 Fair Value Measurement.
Concentration of Risk		Concentration of Risk The Company is subject to interest rate risk on its debt financings. The Company generally uses fixed interest rates for sources of debt financing with the objective of minimizing its cost of borrowing.
Comparative Figures		Comparative Figures Certain of the prior period’s figures may have been reclassified in conformity with the current period’s financial statement presentation.
New Accounting Pronouncements		New Accounting Pronouncements (i) If conditions or events raise substantial doubt about an entity’s ability to continue as a going concern, but the substantial doubt is alleviated as a result of consideration of management’s plans, the entity should disclose information that enables users of the financial statements to understand all of the following: 1. Principal conditions or events that raised substantial doubt about the entity’s ability to continue as a going concern (before consideration of management’s plans). 2. Management’s evaluation of the significance of those conditions or events in relation to the entity’s ability to meet its obligations. 3. Management’s plans that alleviated substantial doubt about the entity’s ability to continue as a going concern. If conditions or events raise substantial doubt about an entity’s ability to continue as a going concern, and substantial doubt is not alleviated after consideration of management’s plans, an entity should include a statement in the footnotes indicating that there is substantial doubt about the entity’s ability to continue as a going concern 1. Principal conditions or events that raise substantial doubt about the entity’s ability to continue as a going concern. 2. Management’s evaluation of the significance of those conditions or events in relation to the entity’s ability to meet its obligations. 3. Management’s plans that are intended to mitigate the conditions or events that raise substantial doubt about the entity’s ability to continue as a going concern. This update will come into effect for the annual period ending after December 15, 2016, and for annual periods and interim periods thereafter. The Company has adopted this standard in its financial statements as at December 31, 2016. See Note 2. (ii)

SUMMARY OF SIGNIFICANT ACCOUN20

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Accounting Policies [Abstract]
Summary of Liabilities	2017 $ 2016 $ Warrants (Note 6) Beginning fair value 742,583 326,595 Issuance 4,195 27,750 Change in fair value (306,893) 111,311 Ending fair value 439,885 465,656 Non-employee options (Note 7(c)) Beginning fair value 446,354 189,207 Fair value of options granted - - Fair value of options on vesting 32,798 - Change in fair value (148,251) 62,023 Ending fair value 330,901 251,230 Total Level 3 liabilities 770,786 716,886	2017 $ 2016 $ Warrants (Note 6) Beginning fair value 326,595 1,128,841 Issuance 70,525 176,493 Reallocation on exercises of warrants (108,784) - Change in fair value 454,247 (978,739) Ending fair value 742,583 326,595 Non-employee options (Note 7(c)) Beginning fair value 189,207 116,615 Fair value of options granted - 102,273 Fair value of options on vesting 23,415 11,366 Change in fair value 233,732 (41,047) Ending fair value 446,354 189,207 Total Level 3 liabilities 1,188,937 515,802

MINERAL PROPERTY INTEREST (Tabl

MINERAL PROPERTY INTEREST (Tables)	3 Months Ended
	Jul. 31, 2017
Extractive Industries [Abstract]
Development Expenditures	$ Balance at April 30, 2017 305,850 Engineering and consulting 90,028 Metallurgy 74,226 Permitting and environmental 6,000 Other direct costs 9,709 179,963 Balance at July 31, 2017 485,813

ACCOUNTS PAYABLE AND ACCRUED 22

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables)	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Payables and Accruals [Abstract]
Schedule of Accounts Payable And Accrued Liabilities	July 31, 2017 $ April 30, 2017 $ Trade payables 327,118 265,116 Amounts due to related parties (Note 8) 198,844 197,954 Interest payable on promissory notes (Note 5) 318,694 705,536 Total accounts payable and accrued liabilities 844,656 1,168,606	April 30, 2017 $ April 30, 2016 $ Trade payables 265,116 307,316 Amounts due to related parties (Note 9) 197,954 189,501 Interest payable on promissory notes (Note 5) 705,536 526,320 Total accounts payable and accrued liabilities 1,168,606 1,023,137

PROMISSORY NOTES (Tables)

PROMISSORY NOTES (Tables)	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Debt Disclosure [Abstract]
Schedule of Promissory Notes	July 31, 2017 $ April 30, 2017 $ Third promissory notes 15,373,956 14,147,964 Fourth promissory notes 184,813 165,208 Total promissory notes 15,558,769 14,313,172 Current 15,373,956 14,147,964 Non-current 184,813 165,208	April 30, 2017 $ April 30, 2016 $ First promissory notes - 5,678,107 Second promissory notes - 4,780,814 Third promissory notes 14,147,964 - Fourth promissory notes 165,208 Total promissory notes 14,313,172 10,458,921 Current 14,147,964 6,587,526 Non-current 165,208 3,871,395
Schedule of Payments To Repay Principal Balance	2018 $ 2019 $ 2020 $ 2021 $ 2022 $ Total $ 15,559,324 - - - - 15,559,324	2017 $ 2018 $ 2019 $ 2020 $ 2021 $ Total $ - 14,458,657 - - - 14,458,657

WARRANT LIABILITIES (Tables)

WARRANT LIABILITIES (Tables)	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Fair Value of Derivative Liabilities	$ Balance, April 30, 2017 742,583 Bonus warrants issuable pursuant to promissory notes (Note 5) 4,195 Change in fair value of warrant derivatives (306,893) Balance, July 31, 2017 439,885	$ Balance, April 30, 2015 1,128,841 Bonus warrants issuable pursuant to promissory notes (Note 5) 176,493 Change in fair value of warrant derivatives (978,739) Balance, April 30, 2016 326,595 Bonus warrants issuable pursuant to promissory notes (Note 5) 70,525 Reallocation on exercise of warrants (108,784) Change in fair value of warrant derivatives 454,247 Balance, April 30, 2017 742,583
Schedule of Weighted Average Assumptions of Derivative Liabilities	July 31 2017 April 30, 2017 Stock price (CAD$) 0.38 0.48 Exercise price (CAD$) 0.31 0.31 Risk-free interest rate (%) 0.73 1.15 Expected life (years) 1.45 1.70 Expected volatility (%) 51 61 Expected dividends ($) Nil Nil	April 30 2017 April 30, 2016 Stock price (CAD$) 0.48 0.23 Exercise price (CAD$) 0.31 0.27 Risk-free interest rate (%) 1.15 0.96 Expected life (years) 1.70 1.41 Expected volatility (%) 61 76 Expected dividends ($) Nil Nil

SHARE CAPITAL (Tables)

SHARE CAPITAL (Tables)	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Options Outstanding	Number Outstanding Weighted Average Exercise Price (in CAD$) Balance outstanding at April 30, 2017 6,555,000 0.22 Balance outstanding at July 31, 2017 6,555,000 0.22 Balance exercisable at July 31, 2017 5,925,000 0.22	Number Outstanding Weighted Average Exercise Price (in CAD$) Balance outstanding at April 30, 2015 5,135,000 0.22 Granted 1,200,000 0.25 Expired (500,000) 0.40 Balance outstanding at April 30, 2016 5,835,000 0.21 Granted 1,700,000 0.25 Exercised (980,000) 0.22 Balance outstanding at April 30, 2017 6,555,000 0.22 Balance exercisable at April 30, 2017 5,825,000 0.22
Summary Of Stock Options Outstanding	Security Number Outstanding Exercise Price (CAD$) Expiry Date Remaining Contractual Life (years) Stock options 1,300,000 0.10 July 30, 2018 1.00 Stock options 260,000 0.15 July 30, 2018 1.00 Stock options 300,000 0.25 July 30, 2018 1.00 Stock options 200,000 0.25 November 19, 2018 1.30 Stock options 150,000 0.25 January 8, 2019 1.44 Stock options 300,000 0.25 May 23, 2019 1.81 Stock options 150,000 0.25 December 16, 2017 0.38 Stock options 1,975,000 0.25 January 29, 2020 2.50 Stock options 200,000 0.25 August 4, 2020 3.01 Stock options 1,000,000 0.25 February 25, 2018 0.57 Stock options 20,000 0.22 May 19, 2018 0.80 Stock options 300,000 0.30 July 21, 2021 3.98 Stock options 400,000 0.30 November 3, 2021 4.26	Security Number Outstanding Exercise Price (CAD$) Expiry Date Remaining Contractual Life (years) Stock options 1,300,000 0.10 July 30, 2018 1.25 Stock options 260,000 0.15 July 30, 2018 1.25 Stock options 300,000 0.25 July 30, 2018 1.25 Stock options 200,000 0.25 November 19, 2018 1.56 Stock options 150,000 0.25 January 8, 2019 1.69 Stock options 300,000 0.25 May 23, 2019 2.06 Stock options 150,000 0.25 December 16, 2017 0.63 Stock options 1,975,000 0.25 January 29, 2020 2.75 Stock options 200,000 0.25 August 4, 2020 3.27 Stock options 1,000,000 0.25 February 25, 2018 0.82 Stock options 20,000 0.22 May 19, 2018 1.05 Stock options 300,000 0.30 July 21, 2021 4.23 Stock options 400,000 0.30 November 3, 2021 4.52
Weighted Average Grant Date Fair Value Of Stock Options Granted		2017 2016 Stock price (CAD$) 0.25 0.23 Exercise price (CAD$) 0.25 0.25 Risk-free interest rate (%) 1.1 1.0 Expected life (years) 3.2 2.5 Expected volatility (%) 85 86 Expected dividends ($) Nil Nil
Fair Values of Non-Employee Stock Options	2017 $ 2016 $ Fair value of non-employee options, beginning of the period 446,354 189,207 Fair value of options on vesting 32,798 - Change in fair value of non-employee stock options during the period (148,251) 62,023 Fair value of non-employee options, end of the period 330,901 251,230	2017 $ 2016 $ Fair value of non-employee options, beginning of the period 189,207 116,615 Fair value of options granted - 102,273 Fair value of options on vesting 23,415 11,366 Change in fair value of non-employee stock options during the period 233,732 (41,047) Fair value of non-employee options, end of the period 446,354 189,207
Weighted Average Assumptions of Non-Employee Stock Options	July 31, 2017 April 30, 2017 Stock price (CAD$) 0.38 0.48 Exercise price (CAD$) 0.23 0.23 Risk-free interest rate (%) 0.90 0.83 Expected life (years) 1.44 1.56 Expected volatility (%) 58 59 Expected dividends ($) Nil Nil	2017 2016 Stock price (CAD$) 0.48 0.23 Exercise price (CAD$) 0.23 0.23 Risk-free interest rate (%) 0.83 1.34 Expected life (years) 1.56 2.43 Expected volatility (%) 59 87 Expected dividends ($) Nil Nil
Income Statement Share-based payments	2017 $ 2016 $ Management and consulting fees 9,829 72,169 9,829 72,169	2017 $ 2016 $ Management and consulting fees 202,886 105,606 202,886 105,606
Summary Of Fully-Exercisable Share Purchase Warrants	Number Outstanding Weighted Average Exercise Price (CAD$) Balance at April 30, 2017 4,349,932 0.31 Issued 55,771 0.50 Balance at July 31, 2017 4,405,703 0.31	Number Outstanding Weighted Average Exercise Price (CAD$) Balance at April 30, 2015 24,555,595 0.37 Issued 1,456,617 0.25 Expired (20,175,000) 0.40 Exercised (25,000) 0.25 Balance at April 30, 2016 5,812,212 0.27 Issued 663,330 0.33 Exercised (1,170,084) 0.15 Expired (955,526) 0.26 Balance at April 30, 2017 4,349,932 0.31
Summary Of Warrants Outstanding And Issuable	Security Number Outstanding Exercise Price ($CAD) Expiry Date Warrants 730,848 0.22 December 31, 2018 (1) Warrants 242,545 0.23 December 31, 2018 (1) Warrants 194,344 0.24 December 31, 2018 (1) Warrants 37,203 0.245 December 31, 2018 (1) Warrants 393,058 0.255 December 31, 2018 (1) Warrants 192,206 0.259 December 31, 2018 (1) Warrants 126,843 0.265 December 31, 2018 (1) Warrants 198,750 0.272 December 31, 2018 (1) Warrants 95,781 0.291 December 31, 2018 (1) Warrants 100,373 0.295 December 31, 2018 (1) Warrants 101,095 0.298 December 31, 2018 (1) Warrants 49,294 0.299 December 31, 2018 (1) Warrants 150,246 0.310 December 31, 2018 (1) Warrants 58,496 0.335 December 31, 2018 (1) Warrants 30,139 0.405 December 31, 2018 (1) Warrants 40,761 0.460 December 31, 2018 (1) Warrants 25,621 0.470 December 31, 2018 (1) Warrants 63,756 0.475 December 31, 2018 (1) Warrants 24,344 0.540 December 31, 2018 (1) Warrants 1,550,000 0.40 January 31, 2019	Security Number Outstanding Exercise Price ($CAD) Expiry Date Warrants 730,848 0.22 December 31, 2018 (1) Warrants 242,545 0.23 December 31, 2018 (1) Warrants 194,344 0.24 December 31, 2018 (1) Warrants 37,203 0.245 December 31, 2018 (1) Warrants 393,058 0.255 December 31, 2018 (1) Warrants 192,206 0.259 December 31, 2018 (1) Warrants 126,843 0.265 December 31, 2018 (1) Warrants 198,750 0.272 December 31, 2018 (1) Warrants 95,781 0.291 December 31, 2018 (1) Warrants 100,373 0.295 December 31, 2018 (1) Warrants 101,095 0.298 December 31, 2018 (1) Warrants 49,294 0.299 December 31, 2018 (1) Warrants 150,246 0.310 December 31, 2018 (1) Warrants 58,496 0.335 December 31, 2018 (1) Warrants 30,139 0.405 December 31, 2018 (1) Warrants 40,761 0.460 December 31, 2018 (1) Warrants 25,621 0.470 December 31, 2018 (1) Warrants 32,329 0.475 December 31, 2018 (1) Warrants 1,550,000 0.40 January 31, 2019

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Apr. 30, 2017
Income Tax Disclosure [Abstract]
Reconciliation Of The Income Tax Provision	2017 $ 2016 $ Statutory tax rate 26.00% 26.00% Loss before income taxes (5,259,749) (4,601,846) Expected income tax recovery (1,368,000) (1,196,000) Increase (decrease) in income tax recovery resulting from: Derivative liability 179,000 (265,000) Other permanent differences 181,000 126,000 Share issue costs (52,000) (106,000) Foreign income taxed at foreign rate (157,000) (277,000) Impact of under-provision in previous year (140,000) - Expiry of loss carry forward 58,000 - Increase in valuation allowance 1,299,000 1,718,000 Income tax recovery - -
Deferred Income Tax Assets And Liabilities	2017 $ 2016 $ Deferred income tax assets / (liabilities) Operating losses carried forward 8,602,000 7,455,000 Resource property 1,441,000 1,284,000 Share issuance costs 134,000 140,000 Other 22,000 21,000 Valuation allowance (10,199,000) (8,900,000) Net deferred income tax asset - -

SUMMARY OF SIGNIFICANT ACCOUN27

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 07/31/17 (Detail) - Summary of Liabilities - USD ($)	3 Months Ended		12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Apr. 30, 2017	Apr. 30, 2016
Total Level 3 liabilities	$ 770,786	$ 716,886
Warrants [Member]
Beginning fair value	742,583	326,595	$ 326,595	$ 1,128,841
Issuance	4,195	27,750	70,525	176,493
Granted			454,247	(978,739)
Vesting			742,583	326,595
Change in fair value	(306,893)	111,311
Ending fair value	439,885	465,656	742,583	326,595
Non-employee Options [Member]
Beginning fair value	1,188,937	515,802	515,802	116,615
Issuance				102,273
Granted			233,732	(41,047)
Vesting	32,798		446,354	189,207
Change in fair value	(148,251)	62,023
Ending fair value	$ 330,901	$ 251,230	$ 1,188,937	$ 515,802

SUMMARY OF SIGNIFICANT ACCOUN28

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 04/30/17 (Detail) - Summary of Liabilities - USD ($)	3 Months Ended		12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Apr. 30, 2017	Apr. 30, 2016
Total Level 3 liabilities	$ 770,786	$ 716,886
Warrants [Member]
Beginning fair value	742,583	326,595	$ 326,595	$ 1,128,841
Issuance	4,195	27,750	70,525	176,493
Reallocation on exercises of warrants			(108,784)
Granted			454,247	(978,739)
Vesting			742,583	326,595
Change in fair value	(306,893)	111,311
Ending fair value	439,885	465,656	742,583	326,595
Non-employee Options [Member]
Beginning fair value	1,188,937	515,802	515,802	116,615
Issuance				102,273
Reallocation on exercises of warrants			23,415	11,366
Granted			233,732	(41,047)
Vesting	32,798		446,354	189,207
Change in fair value	(148,251)	62,023
Ending fair value	$ 330,901	$ 251,230	$ 1,188,937	$ 515,802

MINERAL PROPERTY INTEREST (Deta

MINERAL PROPERTY INTEREST (Detail) - Development Expenditures	3 Months Ended
	Jul. 31, 2017USD ($)
Extractive Industries [Abstract]
Development Expenditures, Balance at April 30, 2017	$ 305,850
Engineering and consulting	90,028
Metallurgy	74,226
Permitting and environmental	6,000
Other direct costs	9,709
[us-gaap:ExplorationExpenseMining]	179,963
Development Expenditures, Balance at July 31, 2017	$ 485,813

ACCOUNTS PAYABLE AND ACCRUED 30

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Detail) - Schedule of Accounts Payable And Accrued Liabilities - USD ($)	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Payables and Accruals [Abstract]
Trade payables	$ 327,118	$ 265,116	$ 307,316
Amounts due to related parties	198,844	197,954	189,501
Interest payable on promissory notes and second promissory notes	318,694	705,536	526,320
Total accounts payable and accrued liabilities	$ 844,656	$ 1,168,606	$ 1,023,137

PROMISSORY NOTES 07_31_17 (Deta

PROMISSORY NOTES 07/31/17 (Detail) - Schedule of Promissory Notes - USD ($)	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Current	$ 15,373,956	$ 14,147,964	$ 6,587,526
Non-current	184,813	165,208	3,871,395
Third Promissory Note [Member]
Promissory notes	15,373,956	14,147,964
Forth Promissory Note [Member]
Promissory notes	184,813	165,208
Total [Member]
Promissory notes	$ 15,558,769	$ 14,313,172	$ 10,458,921

PROMISSORY NOTES 04_30_17 (Deta

PROMISSORY NOTES 04/30/17 (Detail) - Schedule of Promissory Notes - USD ($)	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Current	$ 15,373,956	$ 14,147,964	$ 6,587,526
Non-current	184,813	165,208	3,871,395
First Promissory Note [Member]
Promissory notes			5,678,107
Second Promissory Note [Member]
Promissory notes			4,780,814
Third Promissory Note [Member]
Promissory notes	15,373,956	14,147,964
Forth Promissory Note [Member]
Promissory notes	184,813	165,208
Total [Member]
Promissory notes	$ 15,558,769	$ 14,313,172	$ 10,458,921

PROMISSORY NOTES 07_31_17 (De33

PROMISSORY NOTES 07/31/17 (Detail) - Schedule of Payments To Repay Principal Balance - Promissory Notes [Member] - USD ($)	Jul. 31, 2017	Apr. 30, 2017
2,018	$ 15,559,324
2,019		14,458,657
2,020
2,022
2,022
Total	$ 15,559,324	$ 14,458,657

PROMISSORY NOTES 04_30_17 (De34

PROMISSORY NOTES 04/30/17 (Detail) - Schedule of Payments To Repay Principal Balance - Promissory Notes [Member] - USD ($)	Jul. 31, 2017	Apr. 30, 2017
2,017	$ 15,559,324
2,018		14,458,657
2,019
2,020
2,021
Total	$ 15,559,324	$ 14,458,657

WARRANT LIABILITIES (Detail) -

WARRANT LIABILITIES (Detail) - Schedule of Weighted Average Assumptions of Derivative Liabilities - USD ($)	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Stock price (CAD$)	$ 0.38
Exercise price (CAD$)	$ 0.23
Risk-free interest rate (%)	0.90%
Expected life (years)	1 year 160 days 14 hours 24 minutes
Expected volatility (%)	58.00%
Expected dividends ($)
Warrants [Member]
Stock price (CAD$)	$ 0.38	$ 0.48	$ 0.23
Exercise price (CAD$)	$ 0.31	$ 0.31	$ 0.27
Risk-free interest rate (%)	0.73%	1.15%	0.96%
Expected life (years)	1 year 164 days 6 hours	1 year 255 days 12 hours	1 year 149 days 15 hours 36 minutes
Expected volatility (%)	51.00%	61.00%	76.00%
Expected dividends ($)

WARRANT LIABILITIES (Detail) 36

WARRANT LIABILITIES (Detail) - Schedule of Fair Value of Derivative Liabilities - USD ($)	12 Months Ended
	Apr. 30, 2017	Apr. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Balance, April 30, 2015/2016	$ 326,595	$ 1,128,841
Bonus warrants issuable pursuant to Promissory Notes	70,525	176,493
Reallocation on exercise of warrants	(108,784)
Change in fair value of warrant derivatives	454,247	(978,739)
Balance, April 30, 2016/2017	$ 742,583	$ 326,595

SHARE CAPITAL 07_31_17 (Detail)

SHARE CAPITAL 07/31/17 (Detail) - Stock Options Outstanding - $ / shares	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Outstanding, Beginning	6,555,000	5,835,000	5,135,000
Outstanding, Weighted Average Exercise Price, Beginning	$ 0.22	$ 0.21	$ 0.22
Granted		167,736	1,200,000
Granted, Weighted Average Exercise Price		$ 0.25	$ 0.25
Exercised		(980,000)
Exercised, Weighted Average Exercise Price		$ 0.26	$ 0.25
Expired			(500,000)
Expired, Weighted Average Exercise Price			$ 0.40
Forfeited
Forfeited, Weighted Average Exercise Price
Outstanding, Weighted Average Exercise Price	$ 0.22	$ 0.22	$ 0.21
Outstanding, End	6,555,000	6,555,000	5,835,000
Exercisable, Weighted Average Exercise Price	$ 0.22	$ 0.22
Exercisable, End	5,925,000	5,825,000

SHARE CAPITAL 04_30_17 (Detail)

SHARE CAPITAL 04/30/17 (Detail) - Stock Options Outstanding - $ / shares	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Outstanding, Beginning	6,555,000	5,835,000	5,135,000
Outstanding, Weighted Average Exercise Price, Beginning	$ 0.22	$ 0.21	$ 0.22
Granted		167,736	1,200,000
Exercised		(980,000)
Expired			(500,000)
Forfeited
Granted, Weighted Average Exercise Price		$ 0.25	$ 0.25
Exercised, Weighted Average Exercise Price		0.26	0.25
Expired, Weighted Average Exercise Price			0.40
Forfeited, Weighted Average Exercise Price
Outstanding, Weighted Average Exercise Price	$ 0.22	$ 0.22	$ 0.21
Outstanding, End	6,555,000	6,555,000	5,835,000
Exercisable, Weighted Average Exercise Price	$ 0.22	$ 0.22
Exercisable, End	5,925,000	5,825,000

SHARE CAPITAL 07_31_17 (Detai39

SHARE CAPITAL 07/31/17 (Detail) - Summary Of Stock Options Outstanding - $ / shares	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Set 1 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	1,300,000	1,300,000
Exercise Price	$ 0.1	$ 0.1
Expiry Date	Jul. 30, 2018	Jul. 30, 2018
Remaining Contractual Life (years)	1 year	1 year 3 months
Set 2 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	260,000	260,000
Exercise Price	$ 0.15	$ 0.15
Expiry Date	Jul. 30, 2018	Jul. 30, 2018
Remaining Contractual Life (years)	1 year	1 year 3 months
Set 3 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	300,000	300,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Jul. 30, 2018	Jul. 30, 2018
Remaining Contractual Life (years)	1 year	1 year 3 months
Set 4 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	200,000	200,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Nov. 19, 2018	Nov. 19, 2018
Remaining Contractual Life (years)	1 year 109 days 12 hours	1 year 204 days 9 hours 36 minutes
Set 5 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	150,000	150,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Jan. 8, 2019	Jan. 8, 2019
Remaining Contractual Life (years)	1 year 160 days 14 hours 24 minutes	1 year 251 days 20 hours 24 minutes
Set 6 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	300,000	300,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	May 23, 2019	May 23, 2019
Remaining Contractual Life (years)	1 year 295 days 15 hours 36 minutes	2 years 21 days 21 hours 36 minutes
Set 7 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	150,000	150,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Dec. 16, 2017	Dec. 16, 2017
Remaining Contractual Life (years)	138 days 16 hours 48 minutes	229 days 22 hours 48 minutes
Set 8 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	1,975,000	1,975,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Jan. 29, 2020	Jan. 29, 2020
Remaining Contractual Life (years)	2 years 6 months	2 years 9 months
Set 9 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	200,000	200,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Aug. 4, 2020	Aug. 4, 2020
Remaining Contractual Life (years)	3 years 3 days 15 hours 36 minutes	3 years 98 days 13 hours 12 minutes
Set 10 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	1,000,000	1,000,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Feb. 25, 2018	Feb. 25, 2018
Remaining Contractual Life (years)	204 days 9 hours 36 minutes	299 days 7 hours 12 minutes
Set 11 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	20,000	20,000
Exercise Price	$ 0.22	$ 0.22
Expiry Date	May 19, 2018	May 19, 2018
Remaining Contractual Life (years)	292 days	1 year 18 days 6 hours
Set 12 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	300,000	300,000
Exercise Price	$ 0.3	$ 0.3
Expiry Date	Jul. 21, 2021	Jul. 21, 2021
Remaining Contractual Life (years)	3 years 357 days 16 hours 48 minutes	4 years 83 days 22 hours 48 minutes
Set 13 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	400,000	400,000
Exercise Price	$ 0.3	$ 0.3
Expiry Date	Nov. 3, 2021	Nov. 3, 2021
Remaining Contractual Life (years)	4 years 94 days 21 hours 36 minutes	4 years 186 days 3 hours 36 minutes

SHARE CAPITAL 04_30_17 (Detai40

SHARE CAPITAL 04/30/17 (Detail) - Summary Of Stock Options Outstanding - $ / shares	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Set 1 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	1,300,000	1,300,000
Exercise Price	$ 0.1	$ 0.1
Expiry Date	Jul. 30, 2018	Jul. 30, 2018
Remaining Contractual Life (years)	1 year	1 year 3 months
Set 2 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	260,000	260,000
Exercise Price	$ 0.15	$ 0.15
Expiry Date	Jul. 30, 2018	Jul. 30, 2018
Remaining Contractual Life (years)	1 year	1 year 3 months
Set 3 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	300,000	300,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Jul. 30, 2018	Jul. 30, 2018
Remaining Contractual Life (years)	1 year	1 year 3 months
Set 4 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	200,000	200,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Nov. 19, 2018	Nov. 19, 2018
Remaining Contractual Life (years)	1 year 109 days 12 hours	1 year 204 days 9 hours 36 minutes
Set 5 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	150,000	150,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Jan. 8, 2019	Jan. 8, 2019
Remaining Contractual Life (years)	1 year 160 days 14 hours 24 minutes	1 year 251 days 20 hours 24 minutes
Set 6 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	300,000	300,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	May 23, 2019	May 23, 2019
Remaining Contractual Life (years)	1 year 295 days 15 hours 36 minutes	2 years 21 days 21 hours 36 minutes
Set 7 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	150,000	150,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Dec. 16, 2017	Dec. 16, 2017
Remaining Contractual Life (years)	138 days 16 hours 48 minutes	229 days 22 hours 48 minutes
Set 8 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	1,975,000	1,975,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Jan. 29, 2020	Jan. 29, 2020
Remaining Contractual Life (years)	2 years 6 months	2 years 9 months
Set 9 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	200,000	200,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Aug. 4, 2020	Aug. 4, 2020
Remaining Contractual Life (years)	3 years 3 days 15 hours 36 minutes	3 years 98 days 13 hours 12 minutes
Set 10 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	1,000,000	1,000,000
Exercise Price	$ 0.25	$ 0.25
Expiry Date	Feb. 25, 2018	Feb. 25, 2018
Remaining Contractual Life (years)	204 days 9 hours 36 minutes	299 days 7 hours 12 minutes
Set 11 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	20,000	20,000
Exercise Price	$ 0.22	$ 0.22
Expiry Date	May 19, 2018	May 19, 2018
Remaining Contractual Life (years)	292 days	1 year 18 days 6 hours
Set 12 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	300,000	300,000
Exercise Price	$ 0.3	$ 0.3
Expiry Date	Jul. 21, 2021	Jul. 21, 2021
Remaining Contractual Life (years)	3 years 357 days 16 hours 48 minutes	4 years 83 days 22 hours 48 minutes
Set 13 [Member]
Type of Security	Stock options	Stock options
Outstanding Stock Options	400,000	400,000
Exercise Price	$ 0.3	$ 0.3
Expiry Date	Nov. 3, 2021	Nov. 3, 2021
Remaining Contractual Life (years)	4 years 94 days 21 hours 36 minutes	4 years 186 days 3 hours 36 minutes

SHARE CAPITAL (Detail) - Weight

SHARE CAPITAL (Detail) - Weighted Average Grant Date Fair Value Of Stock Options Granted - USD ($)	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Stock price (CAD$)	$ 0.38
Exercise price (CAD$)	$ 0.23
Risk-free interest rate (%)	0.90%
Expected life (years)	1 year 160 days 14 hours 24 minutes
Expected volatility (%)	58.00%
Expected dividends ($)
Employee Stock Option [Member]
Stock price (CAD$)		$ 0.25	$ 0.23
Exercise price (CAD$)		$ 0.25	$ 0.25
Risk-free interest rate (%)		1.10%	1.00%
Expected life (years)		3 years 73 days	2 years 6 months
Expected volatility (%)		85.00%	86.00%
Expected dividends ($)

SHARE CAPITAL (Detail) - Fair V

SHARE CAPITAL (Detail) - Fair Values of Non-Employee Stock Options - USD ($)	3 Months Ended		12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Apr. 30, 2017	Apr. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Fair value of non-employee options, beginning of the period	$ 446,354	$ 189,207	$ 189,207	$ 116,615
Fair value of options granted				102,273
Fair value of options on vesting	32,798		23,415	11,366
Change in fair value of non-employee stock options during the period	(148,251)	62,023	233,732	(41,047)
Fair value of non-employee options, end of the period	$ 330,901	$ 251,230	$ 446,354	$ 189,207

SHARE CAPITAL (Detail) - Income

SHARE CAPITAL (Detail) - Income Statement Share-based payments - USD ($)	3 Months Ended		12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Apr. 30, 2017	Apr. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share Based Payments, Management and consulting fees	$ 9,829	$ 72,169	$ 202,886	$ 105,606
Total	$ 9,829	$ 72,169	$ 202,886	$ 105,606

SHARE CAPITAL 07_31_17 (Detai44

SHARE CAPITAL 07/31/17 (Detail) - Summary Of Fully-Exercisable Share Purchase Warrants - $ / shares	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number Outstanding, Beginning	4,349,932	5,812,212	24,555,595
Weighted Average Exercise Price	$ 0.31	$ 0.27	$ 0.37
Issued	55,771	663,330	1,456,617
Issued, Weighted Average Exercise Price	$ 0.50	$ 0.33	$ 0.25
Expired		(1,170,084)	(20,175,000)
Expired, Weighted Average Exercise Price		$ 0.15	$ 0.40
Exercised		(955,526)	(25,000)
Exercised, Weighted Average Exercise Price		$ 0.26	$ 0.25
Number Outstanding, End	4,405,703	4,349,932	5,812,212
Weighted Average Exercise Price, End	$ 0.31	$ 0.31	$ 0.27

SHARE CAPITAL 04_30_17 (Detai45

SHARE CAPITAL 04/30/17 (Detail) - Summary Of Fully-Exercisable Share Purchase Warrants - $ / shares	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number Outstanding, Beginning	4,349,932	5,812,212	24,555,595
Weighted Average Exercise Price	$ 0.31	$ 0.27	$ 0.37
Issued	55,771	663,330	1,456,617
Issued, Weighted Average Exercise Price	$ 0.50	$ 0.33	$ 0.25
Expired		(1,170,084)	(20,175,000)
Expired, Weighted Average Exercise Price		$ 0.15	$ 0.40
Exercised		(955,526)	(25,000)
Exercised, Weighted Average Exercise Price		$ 0.26	$ 0.25
Number Outstanding, End	4,405,703	4,349,932	5,812,212
Weighted Average Exercise Price, End	$ 0.31	$ 0.31	$ 0.27

SHARE CAPITAL 07_31_17 (Detai46

SHARE CAPITAL 07/31/17 (Detail) - Summary Of Warrants Outstanding And Issuable - $ / shares	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Warrants 1 [Member]
Outstanding Stock Options	730,848	730,848
Exercise Price	$ 0.22	$ 0.22
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 2 [Member]
Outstanding Stock Options	242,545	242,545
Exercise Price	$ 0.23	$ 0.23
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 3 [Member]
Outstanding Stock Options	194,344	194,344
Exercise Price	$ 0.24	$ 0.24
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 4 [Member]
Outstanding Stock Options	37,203	37,203
Exercise Price	$ 0.245	$ 0.245
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 5 [Member]
Outstanding Stock Options	393,058	393,058
Exercise Price	$ 0.255	$ 0.255
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 6 [Member]
Outstanding Stock Options	192,206	192,206
Exercise Price	$ 0.259	$ 0.259
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 7 [Member]
Outstanding Stock Options	126,843	126,843
Exercise Price	$ 0.265	$ 0.265
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 8 [Member]
Outstanding Stock Options	198,750	198,750
Exercise Price	$ 0.272	$ 0.272
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 9 [Member]
Outstanding Stock Options	95,781	95,781
Exercise Price	$ 0.291	$ 0.291
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 10 [Member]
Outstanding Stock Options	100,373	100,373
Exercise Price	$ 0.295	$ 0.295
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 11 [Member]
Outstanding Stock Options	101,095	101,095
Exercise Price	$ 0.298	$ 0.298
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 12 [Member]
Outstanding Stock Options	49,294	49,294
Exercise Price	$ 0.299	$ 0.299
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 13 [Member]
Outstanding Stock Options	150,246	150,246
Exercise Price	$ 0.31	$ 0.31
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 14 [Member]
Outstanding Stock Options	58,496	58,496
Exercise Price	$ 0.335	$ 0.335
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 15 [Member]
Outstanding Stock Options	30,139	30,139
Exercise Price	$ 0.405	$ 0.405
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 16 [Member]
Outstanding Stock Options	40,761	40,761
Exercise Price	$ 0.46	$ 0.46
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 17 [Member]
Outstanding Stock Options	25,621	25,621
Exercise Price	$ 0.47	$ 0.47
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 18 [Member]
Outstanding Stock Options	63,756	32,329
Exercise Price	$ 0.475	$ 0.475
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 19 [Member]
Outstanding Stock Options	24,344	1,550,000
Exercise Price	$ 0.54	$ 0.4
Expiry Date	Dec. 31, 2018	Jan. 31, 2019
Warrants 20 [Member]
Outstanding Stock Options	1,550,000
Exercise Price	$ 0.4
Expiry Date	Jan. 31, 2019

SHARE CAPITAL 04_30_17 (Detai47

SHARE CAPITAL 04/30/17 (Detail) - Summary Of Warrants Outstanding And Issuable - $ / shares	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Warrants 1 [Member]
Outstanding Stock Options	730,848	730,848
Exercise Price	$ 0.22	$ 0.22
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 2 [Member]
Outstanding Stock Options	242,545	242,545
Exercise Price	$ 0.23	$ 0.23
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 3 [Member]
Outstanding Stock Options	194,344	194,344
Exercise Price	$ 0.24	$ 0.24
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 4 [Member]
Outstanding Stock Options	37,203	37,203
Exercise Price	$ 0.245	$ 0.245
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 5 [Member]
Outstanding Stock Options	393,058	393,058
Exercise Price	$ 0.255	$ 0.255
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 6 [Member]
Outstanding Stock Options	192,206	192,206
Exercise Price	$ 0.259	$ 0.259
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 7 [Member]
Outstanding Stock Options	126,843	126,843
Exercise Price	$ 0.265	$ 0.265
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 8 [Member]
Outstanding Stock Options	198,750	198,750
Exercise Price	$ 0.272	$ 0.272
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 9 [Member]
Outstanding Stock Options	95,781	95,781
Exercise Price	$ 0.291	$ 0.291
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 10 [Member]
Outstanding Stock Options	100,373	100,373
Exercise Price	$ 0.295	$ 0.295
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 11 [Member]
Outstanding Stock Options	101,095	101,095
Exercise Price	$ 0.298	$ 0.298
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 12 [Member]
Outstanding Stock Options	49,294	49,294
Exercise Price	$ 0.299	$ 0.299
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 13 [Member]
Outstanding Stock Options	150,246	150,246
Exercise Price	$ 0.31	$ 0.31
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 14 [Member]
Outstanding Stock Options	58,496	58,496
Exercise Price	$ 0.335	$ 0.335
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 15 [Member]
Outstanding Stock Options	30,139	30,139
Exercise Price	$ 0.405	$ 0.405
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 16 [Member]
Outstanding Stock Options	40,761	40,761
Exercise Price	$ 0.46	$ 0.46
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 17 [Member]
Outstanding Stock Options	25,621	25,621
Exercise Price	$ 0.47	$ 0.47
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 18 [Member]
Outstanding Stock Options	63,756	32,329
Exercise Price	$ 0.475	$ 0.475
Expiry Date	Dec. 31, 2018	Dec. 31, 2018
Warrants 19 [Member]
Outstanding Stock Options	24,344	1,550,000
Exercise Price	$ 0.54	$ 0.4
Expiry Date	Dec. 31, 2018	Jan. 31, 2019

INCOME TAXES (Details) - Reconc

INCOME TAXES (Details) - Reconciliation Of The Income Tax Provision - USD ($)	12 Months Ended
	Apr. 30, 2017	Apr. 30, 2016
Income Tax Disclosure [Abstract]
Statutory tax rate	26.00%	26.00%
Loss before income taxes	$ (5,259,749)	$ (4,601,846)
Expected income tax recovery	(1,368,000)	(1,196,000)
Increase (decrease) in income tax recovery resulting from:
Derivative liability	179,000	(265,000)
Other permanent differences	181,000	126,000
Share issue costs	(52,000)	(106,000)
Foreign income taxed at foreign rate	(157,000)	(277,000)
Impact of under-provision in previous year	(140,000)
Expiry of loss carry forward	58,000
Increase in valuation allowance	1,299,000	1,718,000
Income tax recovery

INCOME TAXES (Details) - Deferr

INCOME TAXES (Details) - Deferred Income Tax Assets And Liabilities - USD ($)	Apr. 30, 2017	Apr. 30, 2016
Deferred income tax assets / (liabilities)
Operating losses carried forward	$ 8,602,000	$ 7,455,000
Resource property	1,441,000	1,284,000
Share issuance costs	134,000	140,000
Other	22,000	21,000
Valuation allowance	(10,199,000)	(8,900,000)
Net deferred income tax asset

NATURE OF BUSINESS AND BASIS 50

NATURE OF BUSINESS AND BASIS OF PRESENTATION AND LIQUIDITY (Details Narrative) - USD ($)	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Accounting Policies [Abstract]
Accumulated Deficit	$ 37,181,259	$ 36,617,260	$ 37,181,259

SUMMARY OF SIGNIFICANT ACCOUN51

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)	3 Months Ended		12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Apr. 30, 2017	Apr. 30, 2016
Amortized Financing Fees			$ 490,531	$ 372,266
Shares Excluded from Loss Per Share, potentially dilutive	10,992,130	12,524,012	10,993,021	12,027,780
Promissory Notes [Member]
Notes Fair Value	$ 15,552,183		$ 13,781,276	$ 10,703,836

MINERAL PROPERTY INTEREST (De52

MINERAL PROPERTY INTEREST (Details Narrative) - Idaho [Member]	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Mineral Leases Interest	100.00%	100.00%
Number of Mineral Leases	11	11
Mineral Royalty	The State of Idaho mineral leases are subject to a 5% production royalty on gross sales.	The State of Idaho mineral leases are subject to a 5% production royalty on gross sales.

PROMISSORY NOTES 07_31_17 (Det

PROMISSORY NOTES 07/31/17 (Details Narrative) - USD ($)	3 Months Ended		12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Apr. 30, 2017	Apr. 30, 2016
Accretion Expense	$ (150,925)	$ (125,117)	$ (490,531)	$ (372,266)
Black-Scholes Option Pricing Model Assumptions:
Stock price (CAD$)	$ 0.38
Exercise price (CAD$)	$ 0.23
Risk-free interest rate (%)	0.90%
Expected life (years)	1 year 160 days 14 hours 24 minutes
Expected volatility (%)	58.00%
Expected dividends ($)
Third Promissory Note [Member]
Promissory Notes Description	Effective August 31, 2016, the Company entered into an agreement (dated June 1, 2016) with a company controlled by a director of the Company (the “Lender”) pursuant to which up to an additional $2,965,000 will be advanced to the Company in tranches (the “Third Promissory Notes”). In addition, the First Promissory Notes and the Second Promissory Notes were amended and combined with the Third Promissory Notes with a modified maturity date of December 2, 2017. All other terms of the First Promissory Notes and the Second Promissory Notes remained unchanged.
Promissory Note Advance	$ 250,000		$ 1,815,000
Interest Rate	12.00%
Interest Recorded	$ 457,567	$ 354,752
Promissory Note Interest Payable Terms	Interest is payable semi-annually as calculated on May 31st and November 30th of each year. Interest is to be paid either in cash, in common shares or deemed an advance of principal at the option of the Lender.
Shares Issued, Shares	112,433		88,089
Shares Issued, Fair Value	$ 39,375		$ 29,625
Third Promissory Note [Member] | Bonus Shares [Member]
Shares Issued, Shares	31,427
Shares Issued, Fair Value	$ 9,000
Share Purchase Warrants, Shares	55,771
Share Purchase Warrants, Fair Value	$ 4,195
Black-Scholes Option Pricing Model Assumptions:
Stock price (CAD$)	$ 0.444
Exercise price (CAD$)	$ 0.503
Risk-free interest rate (%)	1.15%
Expected life (years)	1 year 189 days 19 hours 12 minutes
Expected volatility (%)	53.00%
Expected dividends ($)	$ 0
Fourth Promissory Note [Member]
Promissory Notes Description	On March 13, 2017, the Company entered into a loan agreement with an arm’s-length lender pursuant to which CAD$250,000 ($186,846) was advanced to the Company (the “Fourth Promissory Notes”).
Promissory Note Advance	$ 186,846
Promissory Note Balance	$ 200,100
Promissory Notes Due	Dec. 31, 2018
Interest Rate	12.00%
Interest Recorded	$ 5,729
Accretion Expense	2,655
Unamortized Debt Discount	$ 15,287		$ 17,942
Fourth Promissory Note [Member] | Bonus Shares [Member]
Shares Issued, Shares	40,761
Shares Issued, Fair Value	$ 14,013
Share Purchase Warrants, Shares	40,761
Share Purchase Warrants, Fair Value	$ 4,814

PROMISSORY NOTES 04_30_17 (De54

PROMISSORY NOTES 04/30/17 (Details Narrative) - USD ($)	1 Months Ended		3 Months Ended		6 Months Ended	12 Months Ended		18 Months Ended
	Dec. 31, 2015	Jul. 31, 2015	Jul. 31, 2017	Jul. 31, 2016	May 31, 2016	Apr. 30, 2017	Apr. 30, 2016	Nov. 30, 2016
Promissory Notes Maturity			$ 198,844			$ 197,954	$ 189,501
Interest Payable Settled			463,296	$ 354,752		1,578,631	1,161,339
Loss On Settlement Of Liabilities							(31,512)
Accretion Expense			$ (150,925)	(125,117)		$ (490,531)	(372,266)
Black-Scholes Option Pricing Model Assumptions:
Stock price (CAD$)			$ 0.38
Exercise price (CAD$)			$ 0.23
Risk-free interest rate (%)			0.90%
Expected life (years)			1 year 160 days 14 hours 24 minutes
Expected volatility (%)			58.00%
Expected dividends ($)
First Promissory Note [Member] | Company Controlled By A Director Of The Company [Member]
Promissory Notes Description						On September 13, 2013, January 27, 2014 and December 4, 2014, the Company entered into agreements with a company controlled by a director of the Company (the “Lender”) pursuant to which $5,787,280 was advanced to the Company in tranches (the “First Promissory Notes”). The First Promissory Notes were to mature as to $3,000,000 on December 2, 2016 and the balance due on December 31, 2016.
Second Promissory Note [Member] | Company Controlled By A Director Of The Company [Member]
Promissory Notes Description						On February 18, 2015 and December 1, 2015, the Company entered into agreements with the Lender pursuant to which $5,457,000 was advanced to the Company in tranches (the “Second Promissory Notes”). The Second Promissory Notes mature were to mature as to $1,000,000 on December 2, 2016, $2,000,000 on June 2, 2017 and the balance due on December 2, 2017.
Third Promissory Note [Member]
Promissory Notes Description			Effective August 31, 2016, the Company entered into an agreement (dated June 1, 2016) with a company controlled by a director of the Company (the “Lender”) pursuant to which up to an additional $2,965,000 will be advanced to the Company in tranches (the “Third Promissory Notes”). In addition, the First Promissory Notes and the Second Promissory Notes were amended and combined with the Third Promissory Notes with a modified maturity date of December 2, 2017. All other terms of the First Promissory Notes and the Second Promissory Notes remained unchanged.
Interest Rate			12.00%
Interest Recorded			$ 457,567	$ 354,752
Promissory Note Interest Payable Terms			Interest is payable semi-annually as calculated on May 31st and November 30th of each year. Interest is to be paid either in cash, in common shares or deemed an advance of principal at the option of the Lender.
Shares Issued, Shares			112,433			88,089
Shares Issued, Fair Value			$ 39,375			$ 29,625
Third Promissory Note [Member] | Company Controlled By A Director Of The Company [Member]
Promissory Notes Description						Effective August 31, 2016, the Company entered into an agreement (dated June 1, 2016) with the Lender pursuant to which up to an additional $2,965,000 will be advanced to the Company in tranches (the “Third Promissory Notes”). In addition, the First Promissory Notes and the Second Promissory Notes were amended and combined with the Third Promissory Notes with a modified maturity date of December 2, 2017. All other terms of the First Promissory Notes and the Second Promissory Notes remained unchanged.
Promissory Notes [Member]
Interest Paid As Advance					$ 640,130			$ 759,247
Promissory Note Interest Payable Terms	The interest settled was for the period from June 1, 2015 to November 30, 2015.	The interest settled was for the period from December 1, 2014 to May 31, 2015.
Interest Payable Settled	$ 556,433	$ 395,665
Shares Issued, Shares	2,948,431	2,267,685				693,573
Shares Issued, Fair Value	$ 536,541	$ 427,177				$ 136,735
Loss On Settlement Of Liabilities		$ 31,512
Additional Paid-In Capital	$ 19,892
Promissory Notes [Member] | Bonus Shares 1 [Member]
Shares Issued, Shares						852,562
Shares Issued, Fair Value						$ 200,756
Promissory Notes [Member] | Bonus Shares 2 [Member]
Shares Issued, Shares						349,325
Shares Issued, Fair Value						$ 81,112
Promissory Notes [Member] | Bonus Shares 3 [Member]
Shares Issued, Shares						88,089
Shares Issued, Fair Value						$ 29,625
Promissory Notes [Member] | Bonus Shares [Member]
Shares Issued, Shares						1,832,108
Shares Issued, Fair Value						$ 409,031
Accretion Expense						489,646	372,266
Unamortized Debt Discount						$ 310,693	$ 585,359
Promissory Notes [Member] | Company Controlled By A Director Of The Company [Member]
Interest Rate						12.00%	12.00%
Interest Recorded						$ 1,576,365	$ 1,161,339
Forth Promissory Note [Member] | Bonus Shares [Member]
Shares Issued, Shares						40,761
Shares Issued, Fair Value						$ 14,013
Share Purchase Warrants, Shares						40,761
Share Purchase Warrants, Fair Value						$ 4,814
Black-Scholes Option Pricing Model Assumptions:
Stock price (CAD$)						$ 0.470
Exercise price (CAD$)						$ 0.460
Risk-free interest rate (%)						1.15%
Expected life (years)						1 year 281 days 1 hour 12 minutes
Expected volatility (%)						62.00%
Expected dividends ($)						$ 0
Forth Promissory Note [Member] | Arm Length Lender [Member]
Promissory Notes Description						On March 13, 2017, the Company entered into a loan agreement with an arm’s-length lender pursuant to which CAD$250,000 ($186,846) was advanced to the Company (the “Fourth Promissory Notes”).
Interest Rate						12.00%
Interest Recorded						$ 2,266
Accretion Expense						885
Unamortized Debt Discount						$ 17,942

WARRANT LIABILITIES (Details Na

WARRANT LIABILITIES (Details Narrative) - USD ($)	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Warrant Derivative Liabilities Fair Value	$ 439,885	$ 742,583	$ 326,595

SHARE CAPITAL 07_31_17 (Details

SHARE CAPITAL 07/31/17 (Details Narrative) - USD ($)	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Stock Options Available For Grant	2,393,479	2,382,236	2,797,895
Non Vested Stock Options	200,000	300,000
Unamortized Compensation Cost of Options	$ 60,675	$ 740,304
July 11, 2017 [Member]
Shares Issued, Shares	112,433
Shares Issued, Fair Value	$ 39,375
April 30, 2017 [Member]
Shares Issued, Shares	88,089
Shares Issued, Fair Value	$ 29,625

SHARE CAPITAL 04_31_17 (Details

SHARE CAPITAL 04/31/17 (Details Narrative) - USD ($)	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017	Apr. 30, 2016
Stock Options Available For Grant	2,393,479	2,382,236	2,797,895
Average Grant Date Fair Value Of Stock Options Granted		$ 0.14	$ 0.11
Non Vested Stock Options	200,000	300,000
Unamortized Compensation Cost of Options	$ 60,675	$ 740,304
June 14, 2016 [Member]
Shares Issued, Shares		980,000
Shares Issued, Fair Value		$ 215,600
September 23, 2016 [Member]
Shares Issued, Shares		486,346
Shares Issued, Fair Value		$ 116,756
December 1, 2016 [Member]
Shares Issued, Shares		1,170,084
Shares Issued, Fair Value		$ 132,838
January 25, 2017 [Member]
Shares Issued, Shares		366,216
Shares Issued, Fair Value		$ 84,000
March 28, 2017 [Member]
Shares Issued, Shares		40,761
Shares Issued, Fair Value		$ 14,013
July 10, 2015 [Member]
Shares Issued, Shares			1,085,297
Shares Issued, Fair Value			$ 228,775
July 14, 2015 [Member]
Shares Issued, Shares			2,267,685
Shares Issued, Fair Value			$ 427,177
December 15, 2015 [Member]
Shares Issued, Shares			2,948,431
Shares Issued, Fair Value			$ 536,541
January 5, 2016 [Member]
Shares Issued, Shares			746,811
Shares Issued, Fair Value			$ 180,256
January 29, 2016 [Member]
Shares Issued, Shares			25,000

RELATED PARTY TRANSACTIONS 07_3

RELATED PARTY TRANSACTIONS 07/31/17 (Details Narrative) - USD ($)	3 Months Ended				12 Months Ended
	Jul. 31, 2017	Jul. 30, 2017	Jul. 31, 2016	Jul. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Management And Consulting Fees	$ 34,731		$ 113,653		$ 319,443	$ 245,755
Professional fees	95,615		99,236		(92,083)	338,644
Accounts payable and accrued liabilities	844,656				1,168,606	1,023,137
RJG Capital Corporation [Member]
Management And Consulting Fees	24,000		24,026		96,000	96,002
Wayne Moorhouse, Director [Member]
Management And Consulting Fees	902		770		2,911	3,093
Malaspina Consultants Inc. [Member]
Professional fees	8,076		$ 10,087		23,759	23,557
John Theobald, Director [Member]
Mineral Property Expenditures		$ 29,048			54,124
Directors Or Officers Or Companies Controlled By Them [Member]
Accounts payable and accrued liabilities	$ 198,844				$ 197,954	$ 189,501

INCOME TAXES (Details Narrative

INCOME TAXES (Details Narrative) - USD ($)	Apr. 30, 2017	Apr. 30, 2016
Income Tax Disclosure [Abstract]
Accumulated Non-Capital Losses	$ 10,408,000	$ 8,310,000
Net Operating Losses	$ 16,846,000	$ 15,123,000

RELATED PARTY TRANSACTIONS 04_3

RELATED PARTY TRANSACTIONS 04/30/17 (Details Narrative) - USD ($)	3 Months Ended				12 Months Ended
	Jul. 31, 2017	Jul. 30, 2017	Jul. 31, 2016	Jul. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Interest Payable Settled	$ 463,296		$ 354,752		$ 1,578,631	$ 1,161,339
Management And Consulting Fees	34,731		113,653		319,443	245,755
Professional fees	95,615		99,236		(92,083)	338,644
Accounts payable and accrued liabilities	844,656				1,168,606	1,023,137
Company Controlled By Director [Member]
Interest Payable Settled						$ 952,098
Shares Issued, Shares						5,216,116
Shares Issued, Fair Value						$ 963,718
RJG Capital Corporation [Member]
Management And Consulting Fees	24,000		24,026		96,000	96,002
Wayne Moorhouse, Director [Member]
Management And Consulting Fees	902		770		2,911	3,093
Malaspina Consultants Inc. [Member]
Professional fees	8,076		$ 10,087		23,759	23,557
John Theobald, Director [Member]
Mineral Property Expenditures		$ 29,048			54,124
Directors Or Officers Or Companies Controlled By Them [Member]
Accounts payable and accrued liabilities	$ 198,844				$ 197,954	$ 189,501

SEGMENT DISCLOSURES (Details Na

SEGMENT DISCLOSURES (Details Narrative)	3 Months Ended	12 Months Ended
	Jul. 31, 2017	Apr. 30, 2017
Segment Reporting [Abstract]
Number of Operating Segments	1	1

NON-CASH TRANSACTIONS 07_31_17

NON-CASH TRANSACTIONS 07/31/17 (Details Narrative) - Pursuant To Promissory Notes [Member] - USD ($)	3 Months Ended		12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Apr. 30, 2017
Shares Issued, Shares	55,771	269,359	1,487,860
Shares Issued, Fair Value	$ 18,750	$ 58,144	$ 353,408
Warrants, Shares	55,771	269,359	1,487,860
Warrants, Fair Value	$ 4,195	$ 27,750	$ 176,493

NON-CASH TRANSACTIONS 04_30_17

NON-CASH TRANSACTIONS 04/30/17 (Details Narrative) - USD ($)	3 Months Ended		12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Apr. 30, 2017
Promissory Notes [Member]
Shares Issued, Shares			663,330
Shares Issued, Fair Value			$ 163,282
Warrants, Shares			663,330
Warrants, Fair Value			$ 70,525
Interest On Promissory Notes [Member]
Shares Issued, Shares			5,216,116
Shares Issued, Fair Value			$ 963,718
Pursuant To Promissory Notes [Member]
Shares Issued, Shares	55,771	269,359	1,487,860
Shares Issued, Fair Value	$ 18,750	$ 58,144	$ 353,408
Warrants, Shares	55,771	269,359	1,487,860
Warrants, Fair Value	$ 4,195	$ 27,750	$ 176,493

SUBSEQUENT EVENTS 07_31_17 (Det

SUBSEQUENT EVENTS 07/31/17 (Details Narrative)	1 Months Ended	3 Months Ended
	Sep. 13, 2017	Jul. 26, 2017
Third Promissory Note [Member]
Event Description	The Company received an aggregate of $300,000 of Third Promissory Notes.	The Company received an aggregate of $250,000 of Third Promissory Notes;

SUBSEQUENT EVENTS 04_30_17 (Det

SUBSEQUENT EVENTS 04/30/17 (Details Narrative)	1 Months Ended	3 Months Ended
	Sep. 13, 2017	Jul. 26, 2017
Third Promissory Note [Member]
Event Description	The Company received an aggregate of $300,000 of Third Promissory Notes.	The Company received an aggregate of $250,000 of Third Promissory Notes;
Third Promissory Note 2 [Member]
Event Date		Jul. 10, 2017
Event Description		the Company issued 112,433 bonus shares to the Lender pursuant to the terms of the Third Promissory Notes (Note 5).