Corvus Gold ULC (KOR) 10-Q 10 Jan 19 2019 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Nov. 30, 2018	Jan. 10, 2019
Document Information [Line Items]
Entity Registrant Name	Corvus Gold Inc.
Entity Central Index Key	1,507,964
Trading Symbol	corvf
Current Fiscal Year End Date	--05-31
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	true
Entity Small Business	true
Entity Common Stock, Shares Outstanding (in shares)		110,847,845
Document Type	10-Q
Document Period End Date	Nov. 30, 2018
Document Fiscal Year Focus	2,019
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Ex Transition Period	true

Condensed Interim Consolidated

Condensed Interim Consolidated Balance Sheets (Current Period Unaudited)	Nov. 30, 2018CAD ($)	May 31, 2018CAD ($)
Current assets
Cash and cash equivalents	$ 5,932,070	$ 2,610,541
Accounts receivable	50,877	25,438
Prepaid expenses	121,050	256,772
Total current assets	6,103,997	2,892,751
Property and equipment (note 3)	51,965	56,490
Capitalized acquisition costs (note 4)	5,491,241	5,238,789
Total assets	11,647,203	8,188,030
Current liabilities
Accounts payable and accrued liabilities (note 6)	438,050	330,704
Total current liabilities	438,050	330,704
Asset retirement obligations (note 4)	378,397	366,641
Total liabilities	816,447	697,345
Shareholders’ equity
Share capital (note 5)	94,335,435	83,606,486
Contributed surplus (note 5)	10,603,745	13,030,715
Accumulated other comprehensive income - cumulative translation differences	1,270,728	1,123,410
Deficit accumulated during the exploration stage	(95,379,152)	(90,269,926)
Total shareholders’ equity	10,830,756	7,490,685
Total liabilities and shareholders’ equity	$ 11,647,203	$ 8,188,030

Condensed Interim Consolidate_2

Condensed Interim Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - CAD ($)	3 Months Ended		6 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2018	Nov. 30, 2017
Operating Expenses
Administration	$ 109	$ 106	$ 215	$ 211
Consulting fees (notes 5 and 6)	129,994	150,051	270,689	285,758
Depreciation (note 3)	3,802	4,695	7,475	9,009
Exploration expenditures (notes 4 and 5)	1,493,699	1,723,609	3,146,799	2,451,948
Insurance	50,597	48,280	102,226	98,128
Investor relations (notes 5 and 6)	470,054	242,944	687,725	389,925
Office and miscellaneous	36,847	37,809	60,255	77,984
Professional fees (note 5)	101,269	42,570	157,432	99,825
Regulatory	27,163	13,063	69,451	38,533
Rent	18,479	33,349	36,686	62,243
Travel	99,746	106,394	137,975	132,538
Wages and benefits (notes 5 and 6)	289,817	223,945	547,036	462,170
Total operating expenses	(2,721,576)	(2,626,815)	(5,223,964)	(4,108,272)
Other income (expense)
Interest income	13,304	5,681	28,604	6,122
Foreign exchange gain (loss)	41,494	65,252	86,134	(79,897)
Total other income (expense)	54,798	70,933	114,738	(73,775)
Net loss for the period	(2,666,778)	(2,555,882)	(5,109,226)	(4,182,047)
Other comprehensive income (loss)
Exchange difference on translating foreign operations	101,950	148,809	147,318	(248,742)
Comprehensive loss for the period	$ (2,564,828)	$ (2,407,073)	$ (4,961,908)	$ (4,430,789)
Basic and diluted loss per share (in CAD per share)	$ (0.02)	$ (0.03)	$ (0.05)	$ (0.04)
Weighted average number of shares outstanding (in shares)	106,689,411	99,808,571	106,288,467	98,501,921

Condensed Interim Consolidate_3

Condensed Interim Consolidated Statements of Cash Flows (Unaudited) - CAD ($)	6 Months Ended
	Nov. 30, 2018	Nov. 30, 2017
Operating activities
Net loss for the period	$ (5,109,226)	$ (4,182,047)
Add items not affecting cash:
Depreciation	7,475	9,009
Stock-based compensation (note 5)	309,369	348,070
Foreign exchange gain (loss)	(86,134)	79,897
Changes in non-cash items:
Accounts receivable	(25,439)	(3,199)
Prepaid expenses	135,722	98,794
Accounts payable and accrued liabilities	107,346	(23,005)
Cash used in operating activities	(4,660,887)	(3,672,481)
Financing activities
Cash received from issuance of shares	7,953,926	4,819,862
Share subscription advances		3,999,999
Share issuance costs	(20,816)	(22,491)
Cash provided by financing activities	7,933,110	8,797,370
Investing activities
Expenditures on property and equipment	(1,769)	(7,710)
Capitalized acquisition costs	(47,318)	(38,384)
Cash used in investing activities	(49,087)	(46,094)
Effect of foreign exchange on cash	98,393	(102,421)
Increase in cash and cash equivalents	3,321,529	4,976,374
Cash and cash equivalents, beginning of the period	2,610,541	1,300,553
Cash and cash equivalents, end of the period	$ 5,932,070	$ 6,276,927

Condensed Interim Consolidate_4

Condensed Interim Consolidated Statement of Changes in Equity (Unaudited) - 6 months ended Nov. 30, 2018 - CAD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at May. 31, 2018	104,255,175
Balance at May. 31, 2018	$ 83,606,486	$ 13,030,715	$ 1,123,410	$ (90,269,926)	$ 7,490,685
Net loss for the period				(5,109,226)	(5,109,226)
Private placement (in shares)	1,730,770
Private placement	$ 4,500,002				$ 4,500,002
Exercise of stock options (in shares)	4,036,900				4,036,900
Exercise of stock options	$ 3,453,924				$ 3,453,924
Share issued for capitalized acquisition costs (in shares)	25,000
Share issued for capitalized acquisition costs	$ 59,500				59,500	[1]
Exchange difference on translating foreign operations			147,318		147,318
Share issuance costs	(20,816)				(20,816)
Reclassification of contributed surplus on exercise of stock options	$ 2,736,339	(2,736,339)
Stock-based compensation		309,369			309,369
Balance (in shares) at Nov. 30, 2018	110,047,845
Balance at Nov. 30, 2018	$ 94,335,435	$ 10,603,745	$ 1,270,728	$ (95,379,152)	$ 10,830,756
[1]	Pursuant to a mining lease and option to purchase agreement made effective December 1, 2007 between Corvus Nevada and a group of arm's length limited partnerships, Corvus Nevada has leased (and has the option to purchase) patented mining claims referred to as the "Mayflower" claims which form part of the North Bullfrog project. The terms of the lease/option are as follows: Terms: Initial term of five years, commencing December 1, 2007, with the option to extend the lease for an additional five years. The lease will continue for as long thereafter as the property is in commercial production or, alternatively, for an additional three years if Corvus Nevada makes advance minimum royalty payments of USD 100,000 per year (which are recoupable against actual production royalties). Pursuant to an extension agreement dated January 15, 2016 and fully executed and effective as of November 22, 2017, the parties agreed to extend the lease and option granted for an additional ten years with the same lease payment terms. Lease Payments: USD 5,000 (paid) and 25,000 common shares of ITH (delivered) following regulatory acceptance of the transaction; and an additional USD 5,000 and 20,000 common shares on each of the first through fourth lease anniversaries (paid and issued). Pursuant to an agreement with the lessors, in lieu of the 20,000 ITH common shares due December 1, 2010, Corvus Nevada paid USD 108,750 on November 10, 2010 and delivered 46,250 common shares of the Company on December 2, 2010. If Corvus Nevada elects to extend the lease for a second five-year term, it will pay USD 10,000 and deliver 50,000 common shares of ITH upon election being made, and an additional 50,000 common shares of ITH on each of the fifth through ninth anniversaries (USD 10,000 paid on October 31, 2012 and 50,000 common shares of ITH delivered on October 25, 2012 paid with cash of $126,924; USD 10,000 paid on November 13, 2013 and 50,000 common shares of ITH delivered on November 25, 2013 paid with cash of $35,871; USD 10,000 paid on November 17, 2014 and 50,000 common shares of ITH delivered on November 7, 2014 paid with cash of $21,200; USD 10,000 paid on November 23, 2015 and 50,000 common shares of ITH delivered on November 5, 2015 paid with cash of $19,237; USD 10,000 paid on November 17, 2016 and 50,000 common shares of ITH, purchased for $53,447 in the market by the Company, were delivered on November 10, 2016; and USD 10,000 paid on November 22, 2017 and 50,000 common shares of ITH, purchased for $25,655 in the market by the Company, were delivered on November 30, 2017; and USD 10,000 paid on November 15, 2018 and 50,000 common shares of ITH, purchased for $34,116 in the market by the Company, were delivered on November 6, 2018). Anti-Dilution: Pursuant to an amended agreement agreed to by the lessors in March 2015, the Company shall deliver a total of 85,000 common shares (issued) of the Company for the years 2011 to 2014 (2011: 10,000 common shares; 2012 to 2014: 25,000 common shares each year). All future payments will be satisfied by the delivery of an additional 1/2 common shares of the Company for each of the ITH common shares due per the original agreement (issued 25,000 common shares of the Company on November 18, 2015; 25,000 shares of the Company on November 18, 2016; 25,000 shares of the Company on November 30, 2017 and 25,000 shares of the Company on November 26, 2018). Work Commitments: USD 100,000 per year for the first three years (incurred), USD 200,000 per year for the years four to six (incurred), USD 300,000 for the years seven to ten (incurred) and USD 300,000 for the years 11 - 20 (incurred). Excess expenditures in any year may be carried forward. If Corvus Nevada does not incur the required expenditures in year one, the deficiency is required to be paid to the lessors. Retained Royalty: Corvus Nevada will pay the lessors a NSR royalty of 2% if the average gold price is USD 400 per ounce or less, 3% if the average gold price is between USD 401 and USD 500 per ounce and 4% if the average gold price is greater than USD 500 per ounce.

Note 1 - Nature and Continuance

Note 1 - Nature and Continuance of Operations	6 Months Ended
	Nov. 30, 2018
Notes to Financial Statements
Nature of Operations [Text Block]	1. NATURE AND CONTINUANCE OF OPERATIONS On August 25, 2010, The Company was incorporated on April 13, 2010 Business Corporations Act June 1, 2006. The Company is engaged in the business of acquiring, exploring and evaluating mineral properties, and either joint venturing or developing these properties further or disposing of them when the evaluation is completed. At November 30, 2018, The business of mining and exploration involves a high degree of risk and there can be no no not These condensed interim consolidated financial statements have been prepared on a going concern basis, which presume the realization of assets and discharge of liabilities in the normal course of business for the foreseeable future. The Company’s ability to continue as a going concern is dependent upon achieving profitable operations and/or obtaining additional financing. In assessing whether the going concern assumption is appropriate, management takes into account all available information about the future within one The Company has sustained significant losses from operations, has negative cash flows, and has an ongoing requirement for capital investment to explore its mineral properties. As at November 30, 2018, $5,665,947 $2,562,047 May 31, 2018. June 7, 2018, 1,730,770 $2.60 $4,500,002. November 2018, 4,036,900 4,036,900 $0.86 $3,453,924. December 20, 2018, 800,000 $2.60 $2,080,000. 20 The Company expects that it will need to raise substantial additional capital to accomplish its business plan over the next several years. There is no not not These condensed interim consolidated financial statements do not All currency amounts are stated in Canadian dollars unless noted otherwise.

Note 2 - Significant Accounting

Note 2 - Significant Accounting Policies	6 Months Ended
	Nov. 30, 2018
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2. SIGNIFICANT ACCOUNTING POLICIES Basis of presentation These condensed interim consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to Form 10 10 X Securities Exchange Act of 1934 not May 31, 2018 10 November 30, 2018 six six November 30, 2018 not may May 31, 2019. 2018 not The preparation of these condensed interim consolidated financial statements in conformity with U.S. GAAP requires management to make judgments, estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of these condensed interim consolidated financial statements, and the reported amounts of revenues and expenses during the period. These judgments, estimates and assumptions are continuously evaluated and are based on management’s experience and knowledge of the relevant facts and circumstances. While management believes the estimates to be reasonable, actual results could differ from those estimates and could impact future results of operations and cash flows. Basis of consolidation These condensed interim consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries (collectively, the “Group”), Corvus Gold (USA) Inc. (“Corvus USA”) (a Nevada corporation), Corvus Nevada (a Nevada corporation), Raven Gold (an Alaska corporation), SoN Land and Water LLC (“SoN”) (a Nevada limited liability company) and Mother Lode Mining Company LLC (a Nevada limited liability company). All intercompany transactions and balances were eliminated upon consolidation. Loss per share Basic loss per share is calculated using the weighted average number of common shares outstanding during the period. The Company uses the treasury stock method to compute the dilutive effect of options, warrants and similar instruments. Under this method, the dilutive effect on earnings (loss) per share is calculated presuming the exercise of outstanding options, warrants and similar instruments. It assumes that the proceeds of such exercise would be used to repurchase common shares at the average market price during the period. However, the calculation of diluted loss per share excludes the effects of various conversions and exercise of options and warrants that would be anti-dilutive. For the period ended November 30, 2018, 10,315,000 2017 9,861,900 not Recent accounting pronouncements The Company continually assesses any new accounting pronouncements to determine their applicability. When it is determined that a new accounting pronouncement affects the Company's financial reporting, the Company undertakes a study to determine the consequences of the change to its consolidated financial statements and assures that there are proper controls in place to ascertain that the Company’s consolidated financial statements properly reflect the change. In March 2016, No. 2016 02, No. 2016 02 No. 2016 02 not 12 not December 15, 2018. not In June 2016, No. 2016 13, No. 2016 13 not first December 15, 2019. December 15, 2018, not

Note 3 - Property and Equipment

Note 3 - Property and Equipment	6 Months Ended
	Nov. 30, 2018
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	3. PROPERTY AND EQUIPMENT Computer Vehicles Tent Total Cost Balance, May 31, 2018 $ 83,619 $ 88,328 $ 64,740 $ 236,687 Additions 1,769 - - 1,769 Currency translation adjustments 1,659 2,407 1,765 5,831 Balance, November 30, 2018 $ 87,047 $ 90,735 $ 66,505 $ 244,287 Depreciation Balance, May 31, 2018 $ 60,144 $ 79,178 $ 40,875 $ 180,197 Depreciation for the period 3,675 1,387 2,413 7,475 Currency translation adjustments 1,316 2,181 1,153 4,650 Balance, November 30, 2018 $ 65,135 $ 82,746 $ 44,441 $ 192,322 Carrying amounts Balance, May 31, 2018 $ 23,475 $ 9,150 $ 23,865 $ 56,490 Balance, November 30, 2018 $ 21,912 $ 7,989 $ 22,064 $ 51,965

Note 4 - Mineral Properties

Note 4 - Mineral Properties	6 Months Ended
	Nov. 30, 2018
Notes to Financial Statements
Mineral Industries Disclosures [Text Block]	4. MINERAL PROPERTIES The Company had the following activity related to capitalized acquisition costs: North Mother Lode Total (note 4a)) (note 4b)) Balance, May 31, 2018 $ 4,428,752 $ 810,037 $ 5,238,789 Cash payments (note 4a)(ii)(1) 47,318 - 47,318 Shares issued (note 4a)(ii)(1) 59,500 - 59,500 Asset retirement obligations - 1,760 1,760 Currency translation adjustments 121,787 22,087 143,874 Balance, November 30, 2018 $ 4,657,357 $ 833,884 $ 5,491,241 The following table presents costs incurred for exploration and evaluation activities for the six November 30, 2018: North Mother Lode Total (note 4a)) (note 4b)) Exploration costs: Assay $ - $ 288,804 $ 288,804 Drilling 1,239 1,094,841 1,096,080 Equipment rental - 36,404 36,404 Field costs 322 116,337 116,659 Geological/ Geophysical 27,661 295,063 322,724 Land maintenance & tenure 223,584 254,313 477,897 Permits 5,602 68,304 73,906 Studies 8,403 667,671 676,074 Travel - 58,251 58,251 Total expenditures for the period $ 266,811 $ 2,879,988 $ 3,146,799 The following table presents costs incurred for exploration and evaluation activities for the six November 30, 2017: North Mother Lode Total (note 4a)) (note 4b)) Exploration costs: Assay $ 44,148 $ 130,818 $ 174,966 Drilling (3,265 ) 868,901 865,636 Equipment rental 14,616 50,435 65,051 Field costs 14,133 170,931 185,064 Geological/ Geophysical 49,931 266,833 316,764 Land maintenance & tenure 220,204 42,797 263,001 Permits 6,240 35,532 41,772 Studies 416,391 70,363 486,754 Travel 9,294 43,646 52,940 Total expenditures for the period $ 771,692 $ 1,680,256 $ 2,451,948 a) North Bullfrog Project, Nevada The Company’s North Bullfrog project consists of certain leased patented lode mining claims and federal unpatented mining claims owned 100% (i) Interests acquired from Redstar Gold Corp. On October 9, 2009, ( 1 Pursuant to a mining lease and option to purchase agreement made effective October 27, 2008 twelve ten not 10,800 first three 10,800 16,200 October 27, 2018). 1,000,000 4% may 1,250,000 1% 5,000,000 ( 2 Pursuant to a mining lease made and entered into as of May 8, 2006 two three ten 4,000 3,500 May 8, 2007, 2008 2009 4,500 May 8, 2010 May 8, 2018). 2% may 1,000,000 1% 2,000,000 ( 3 Pursuant to a mining lease made and entered into as of May 8, 2006 two ten 2,000 2,000 May 8, 2007, 2008 2009 3,000 May 8, 2010 May 8, 2018). 3% may 850,000 1% 2,550,000 May 29, 2014, 2,400 2,400 May 29, 2015, 2016 2017 3,600 May 29, 2018 May 29, 2018). 3% may 770,000 1% 2,310,000 ( 4 Pursuant to a mining lease made and entered into as of May 16, 2006 twelve ten 20,500 20,000 May 16, 2018). 4% may 1,000,000 1% 4,000,000 ( 5 Pursuant to a mining lease made and entered into as of May 22, 2006 three ten 8,000 4,800 May 22, 2007, 2008 2009 7,200 May 22, 2010 May 22, 2018). 2% may 1,000,000 1% 2,000,000 ( 6 Pursuant to a mining lease made and entered into as of June 16, 2006 one ten 2,000 2,000 June 16, 2007, 2008 2009 3,000 June 16, 2010 June 16, 2018). 2% may 1,000,000 1% 2,000,000 As a consequence of the acquisition of Redstar and Redstar US’s interest in the foregoing leases, Corvus Nevada is now the lessee under all of such leases. (ii) Interests acquired directly by Corvus Nevada ( 1 Pursuant to a mining lease and option to purchase agreement made effective December 1, 2007 ☐ Terms five December 1, 2007, five three 100,000 January 15, 2016 November 22, 2017, ten ☐ Lease Payments 5,000 25,000 5,000 20,000 first fourth 20,000 December 1, 2010, 108,750 November 10, 2010 46,250 December 2, 2010. second five 10,000 50,000 50,000 fifth ninth 10,000 October 31, 2012 50,000 October 25, 2012 $126,924; 10,000 November 13, 2013 50,000 November 25, 2013 $35,871; 10,000 November 17, 2014 50,000 November 7, 2014 $21,200; 10,000 November 23, 2015 50,000 November 5, 2015 $19,237; 10,000 November 17, 2016 50,000 $53,447 November 10, 2016; 10,000 November 22, 2017 50,000 $25,655 November 30, 2017; 10,000 November 15, 2018 50,000 $34,116 November 6, 2018). ☐ Anti-Dilution: March 2015, 85,000 2011 2014 2011: 10,000 2012 2014: 25,000 25,000 November 18, 2015; 25,000 November 18, 2016; 25,000 November 30, 2017 25,000 November 26, 2018). ☐ Work Commitments 100,000 first three 200,000 four six 300,000 seven ten 300,000 11 20 may not ☐ Retained Royalty 2% 400 3% 401 500 4% 500 ( 2 Pursuant to a mining lease and option to purchase made effective March 1, 2011 two ten ten not 20,000 25,000 March 1, 2012 ( 2013 2014 30,000 March 1, 2015 March 1, 2018), 2% may 1,000,000 1%. 2,000,000 ( 3 Pursuant to a purchase agreement made effective March 28, 2013, five two 160,000 March 28, 2013). 0.02 12 240,000 4.77% December 31, 2015 ( December 17, 2015). $406,240 400,000 $157,408 $248,832 240,000 May 31, 2013. ( 4 In December 2013, 30 1,600 $1,100,118 1,034,626 ( 5 On March 30, 2015, three 2014. three seven 5,000 5,000 March 2018). 4% 500,000 1% 2,000,000 4% 300,000. b) Mother Lode Property, Nevada Pursuant to a purchase agreement made effective June 9, 2017 100% two 1,000,000 $0.81 1% 1,400 1% 2% 1,400 Acquisitions The acquisition of title to mineral properties is a detailed and time-consuming process. The Company has taken steps, in accordance with industry norms, to verify title to mineral properties in which it has an interest. Although the Company has taken every reasonable precaution to ensure that legal title to its properties is properly recorded in the name of the Company (or, in the case of an option, in the name of the relevant optionor), there can be no Environmental Expenditures The operations of the Company may not Environmental expenditures that relate to ongoing environmental and reclamation programs are charged against earnings as incurred or capitalized and amortized depending on their future economic benefits. Estimated future removal and site restoration costs, when the ultimate liability is reasonably determinable, are charged against earnings over the estimated remaining life of the related business operation, net of expected recoveries. The Company has estimated the fair value of the liability for asset retirement that arose as a result of exploration activities to be $378,397 284,000 May 31, 2018 - $366,641 283,000 not

Note 5 - Share Capital

Note 5 - Share Capital	6 Months Ended
	Nov. 30, 2018
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	5. SHARE CAPITAL Authorized Unlimited common shares without par value. Share issuances During the period ended November 30, 2018: a) On June 7, 2018, 1,730,770 $2.60 $4,500,002. $14,605 b) On November 26, 2018, 25,000 4a 1 $59,500. c) In November 2018, 4,036,900 4,036,900 $0.86 $3,453,924. Stock options Stock options awarded to employees and non-employees by the Company are measured and recognized in the Condensed Interim Consolidated Statement of Operations and Comprehensive Loss over the vesting period. The Company has adopted an incentive stock option plan, first 2010 2013 2010 2010 may 2010 may may not 10% 2010 ten 2010 not five 5 may 2010 A summary of the status of the stock option plan as of November 30, 2018, May 31, 2018, Six months ended Year ended Number of Weighted Number of Weighted Balance, beginning of the period 9,861,900 $ 0.85 8,846,900 $ 0.87 Granted 4,520,000 2.06 1,840,000 0.77 Exercised (4,036,900 ) (0.86 ) (256,660 ) (0.66 ) Forfeited (30,000 ) (0.96 ) (568,340 ) (0.93 ) Balance, end of the period 10,315,000 $ 1.38 9,861,900 $ 0.85 The weighted average remaining contractual life of options outstanding at November 30, 2018, 2018 3.52 May 31, 2018 - 1.74 Stock options outstanding are as follows: November 30, 2018 May 31, 2018 Expiry Date Exercise Number Exercisable Exercise Number of Exercisable September 19, 2017* $ 0.96 - - $ 0.96 1,966,900 1,966,900 August 16, 2018* $ 0.76 - - $ 0.76 2,095,000 2,095,000 September 8, 2019 $ 1.40 1,250,000 1,250,000 $ 1.40 1,250,000 1,250,000 September 9, 2020 $ 0.46 620,000 620,000 $ 0.46 625,000 625,000 November 13, 2020 $ 0.49 1,000,000 1,000,000 $ 0.49 1,000,000 1,000,000 September 15, 2021 $ 0.91 1,085,000 1,085,000 $ 0.91 1,085,000 722,610 July 31, 2022 $ 0.77 1,840,000 612,720 $ 0.77 1,840,000 - November 19, 2023 $ 2.06 4,520,000 - $ - - - 10,315,000 4,567,720 9,861,900 7,659,510 *The Company’s share trading policy (the “Policy”) requires that all restricted persons and others who are subject to the Policy refrain from conducting any transactions involving the purchase or sale of the Company’s securities, during the period in any quarter commencing 30 2010 not not ten The Company uses the fair value method for determining stock-based compensation for all options granted during the periods. The fair value of options granted was $6,939,946 2017 $951,067 For the six months ended November 30, 2018 2017 Risk-free interest rate 2.28 % 1.65 % Expected life of options (years) 5 5 Annualized volatility 73.69 % 79.14 % Dividend yield 0 % 0 % Exercise price $ 2.06 $ 0.77 Fair value per share $ 1.54 $ 0.52 Annualized volatility was determined by reference to historic volatility of the Company. Stock-based compensation has been allocated to the same expenses as cash compensation paid to the same employees or consultants, as follows: For the six months ended November 30, 2018 2017 Consulting fees $ 140,189 $ 157,258 Exploration expenditures - Geological/geophysical 27,661 27,179 Investor relations 42,106 47,772 Professional fees 3,000 3,732 Wages and benefits 96,413 112,129 $ 309,369 $ 348,070

Note 6 - Related Party Transact

Note 6 - Related Party Transactions	6 Months Ended
	Nov. 30, 2018
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	6. RELATED PARTY TRANSACTIONS The Company entered into the following transactions with related parties: For the six months ended November 30, 2018 2017 Consulting fees to CFO $ 45,000 $ 40,000 Wages and benefits to CEO and COO 360,007 285,934 Directors fees (included in consulting fees) 67,500 70,500 Stock-based compensation to related parties 217,797 262,035 $ 690,304 $ 658,469 As at November 30, 2018, $1,098 May 31, 2018 - $15,537 These amounts were unsecured, non-interest bearing and had no not The Company has also entered into change of control agreements with officers of the Company. In the case of termination, the officers are entitled to an amount equal to a multiple (ranging from two three one

Note 7 - Geographic Segmented I

Note 7 - Geographic Segmented Information	6 Months Ended
	Nov. 30, 2018
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	7. GEOGRAPHIC SEGMENTED INFORMATION The Company operates in one two Canada United States Total November 30, 2018 Capitalized acquisition costs $ - $ 5,491,241 $ 5,491,241 Property and equipment $ 9,520 $ 42,445 $ 51,965 May 31, 2018 Capitalized acquisition costs $ - $ 5,238,789 $ 5,238,789 Property and equipment $ 11,200 $ 45,290 $ 56,490 For the period ended November 30, 2018 2017 Net loss for the period - Canada $ (1,366,653 ) $ (1,201,985 ) Net loss for the period - United States (3,742,573 ) (2,980,062 ) Net loss for the period $ (5,109,226 ) $ (4,182,047 )

Note 8 - Subsidiaries

Note 8 - Subsidiaries	6 Months Ended
	Nov. 30, 2018
Notes to Financial Statements
Subsidiaries [Text Block]	8. SUBSIDIARIES Significant subsidiaries for the six November 30, 2018 2017 Country of Principal The Company’s The Company’s Corvus Gold (USA) Inc. USA Holding company 100 % 100 % Raven Gold Alaska Inc. USA Exploration company 100 % 100 % Corvus Gold Nevada Inc. USA Exploration company 100 % 100 % SoN Land & Water LLC USA Exploration company 100 % 100 % Mother Lode Mining Company LLC USA Exploration company 100 % 100 %

Note 9 - Supplemental Cash Flow

Note 9 - Supplemental Cash Flow Information	6 Months Ended
	Nov. 30, 2018
Notes to Financial Statements
Cash Flow, Supplemental Disclosures [Text Block]	9. SUPPLEMENTAL CASH FLOW INFORMATION For the six months ended November 30, 2018 2017 Supplemental cash flow information Interest paid $ - $ - Income taxes paid (received) $ - $ - Non-cash financing and investing transactions Shares issued to acquire mineral properties $ 59,500 $ 847,000 Reclassification of contributed surplus on exercise of stock options $ 2,736,339 $ 123,302

Note 10 - Subsequent Event

Note 10 - Subsequent Event	6 Months Ended
	Nov. 30, 2018
Notes to Financial Statements
Subsequent Events [Text Block]	10. SUBSEQUENT EVENT On December 20, 2018, 800,000 $2.60 $2,080,000.

Significant Accounting Policies

Significant Accounting Policies (Policies)	6 Months Ended
	Nov. 30, 2018
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of presentation These condensed interim consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to Form 10 10 X Securities Exchange Act of 1934 not May 31, 2018 10 November 30, 2018 six six November 30, 2018 not may May 31, 2019. 2018 not The preparation of these condensed interim consolidated financial statements in conformity with U.S. GAAP requires management to make judgments, estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of these condensed interim consolidated financial statements, and the reported amounts of revenues and expenses during the period. These judgments, estimates and assumptions are continuously evaluated and are based on management’s experience and knowledge of the relevant facts and circumstances. While management believes the estimates to be reasonable, actual results could differ from those estimates and could impact future results of operations and cash flows.
Consolidation, Policy [Policy Text Block]	Basis of consolidation These condensed interim consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries (collectively, the “Group”), Corvus Gold (USA) Inc. (“Corvus USA”) (a Nevada corporation), Corvus Nevada (a Nevada corporation), Raven Gold (an Alaska corporation), SoN Land and Water LLC (“SoN”) (a Nevada limited liability company) and Mother Lode Mining Company LLC (a Nevada limited liability company). All intercompany transactions and balances were eliminated upon consolidation.
Earnings Per Share, Policy [Policy Text Block]	Loss per share Basic loss per share is calculated using the weighted average number of common shares outstanding during the period. The Company uses the treasury stock method to compute the dilutive effect of options, warrants and similar instruments. Under this method, the dilutive effect on earnings (loss) per share is calculated presuming the exercise of outstanding options, warrants and similar instruments. It assumes that the proceeds of such exercise would be used to repurchase common shares at the average market price during the period. However, the calculation of diluted loss per share excludes the effects of various conversions and exercise of options and warrants that would be anti-dilutive. For the period ended November 30, 2018, 10,315,000 2017 9,861,900 not
New Accounting Pronouncements, Policy [Policy Text Block]	Recent accounting pronouncements The Company continually assesses any new accounting pronouncements to determine their applicability. When it is determined that a new accounting pronouncement affects the Company's financial reporting, the Company undertakes a study to determine the consequences of the change to its consolidated financial statements and assures that there are proper controls in place to ascertain that the Company’s consolidated financial statements properly reflect the change. In March 2016, No. 2016 02, No. 2016 02 No. 2016 02 not 12 not December 15, 2018. not In June 2016, No. 2016 13, No. 2016 13 not first December 15, 2019. December 15, 2018, not

Note 3 - Property and Equipme_2

Note 3 - Property and Equipment (Tables)	6 Months Ended
	Nov. 30, 2018
Notes Tables
Property, Plant and Equipment [Table Text Block]	Computer Vehicles Tent Total Cost Balance, May 31, 2018 $ 83,619 $ 88,328 $ 64,740 $ 236,687 Additions 1,769 - - 1,769 Currency translation adjustments 1,659 2,407 1,765 5,831 Balance, November 30, 2018 $ 87,047 $ 90,735 $ 66,505 $ 244,287 Depreciation Balance, May 31, 2018 $ 60,144 $ 79,178 $ 40,875 $ 180,197 Depreciation for the period 3,675 1,387 2,413 7,475 Currency translation adjustments 1,316 2,181 1,153 4,650 Balance, November 30, 2018 $ 65,135 $ 82,746 $ 44,441 $ 192,322 Carrying amounts Balance, May 31, 2018 $ 23,475 $ 9,150 $ 23,865 $ 56,490 Balance, November 30, 2018 $ 21,912 $ 7,989 $ 22,064 $ 51,965

Note 4 - Mineral Properties (Ta

Note 4 - Mineral Properties (Tables)	6 Months Ended
	Nov. 30, 2018
Notes Tables
Capitalized Costs Relating to Acquisition Activities Disclosure [Table Text Block]	North Mother Lode Total (note 4a)) (note 4b)) Balance, May 31, 2018 $ 4,428,752 $ 810,037 $ 5,238,789 Cash payments (note 4a)(ii)(1) 47,318 - 47,318 Shares issued (note 4a)(ii)(1) 59,500 - 59,500 Asset retirement obligations - 1,760 1,760 Currency translation adjustments 121,787 22,087 143,874 Balance, November 30, 2018 $ 4,657,357 $ 833,884 $ 5,491,241
Cost Incurred in Acquisition Exploration and Evaluation Activities Disclosure [Table Text Block]	North Mother Lode Total (note 4a)) (note 4b)) Exploration costs: Assay $ - $ 288,804 $ 288,804 Drilling 1,239 1,094,841 1,096,080 Equipment rental - 36,404 36,404 Field costs 322 116,337 116,659 Geological/ Geophysical 27,661 295,063 322,724 Land maintenance & tenure 223,584 254,313 477,897 Permits 5,602 68,304 73,906 Studies 8,403 667,671 676,074 Travel - 58,251 58,251 Total expenditures for the period $ 266,811 $ 2,879,988 $ 3,146,799 North Mother Lode Total (note 4a)) (note 4b)) Exploration costs: Assay $ 44,148 $ 130,818 $ 174,966 Drilling (3,265 ) 868,901 865,636 Equipment rental 14,616 50,435 65,051 Field costs 14,133 170,931 185,064 Geological/ Geophysical 49,931 266,833 316,764 Land maintenance & tenure 220,204 42,797 263,001 Permits 6,240 35,532 41,772 Studies 416,391 70,363 486,754 Travel 9,294 43,646 52,940 Total expenditures for the period $ 771,692 $ 1,680,256 $ 2,451,948

Note 5 - Share Capital (Tables)

Note 5 - Share Capital (Tables)	6 Months Ended
	Nov. 30, 2018
Notes Tables
Share-based Compensation, Stock Options, Activity [Table Text Block]	Six months ended Year ended Number of Weighted Number of Weighted Balance, beginning of the period 9,861,900 $ 0.85 8,846,900 $ 0.87 Granted 4,520,000 2.06 1,840,000 0.77 Exercised (4,036,900 ) (0.86 ) (256,660 ) (0.66 ) Forfeited (30,000 ) (0.96 ) (568,340 ) (0.93 ) Balance, end of the period 10,315,000 $ 1.38 9,861,900 $ 0.85
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]	November 30, 2018 May 31, 2018 Expiry Date Exercise Number Exercisable Exercise Number of Exercisable September 19, 2017* $ 0.96 - - $ 0.96 1,966,900 1,966,900 August 16, 2018* $ 0.76 - - $ 0.76 2,095,000 2,095,000 September 8, 2019 $ 1.40 1,250,000 1,250,000 $ 1.40 1,250,000 1,250,000 September 9, 2020 $ 0.46 620,000 620,000 $ 0.46 625,000 625,000 November 13, 2020 $ 0.49 1,000,000 1,000,000 $ 0.49 1,000,000 1,000,000 September 15, 2021 $ 0.91 1,085,000 1,085,000 $ 0.91 1,085,000 722,610 July 31, 2022 $ 0.77 1,840,000 612,720 $ 0.77 1,840,000 - November 19, 2023 $ 2.06 4,520,000 - $ - - - 10,315,000 4,567,720 9,861,900 7,659,510
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	For the six months ended November 30, 2018 2017 Risk-free interest rate 2.28 % 1.65 % Expected life of options (years) 5 5 Annualized volatility 73.69 % 79.14 % Dividend yield 0 % 0 % Exercise price $ 2.06 $ 0.77 Fair value per share $ 1.54 $ 0.52
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	For the six months ended November 30, 2018 2017 Consulting fees $ 140,189 $ 157,258 Exploration expenditures - Geological/geophysical 27,661 27,179 Investor relations 42,106 47,772 Professional fees 3,000 3,732 Wages and benefits 96,413 112,129 $ 309,369 $ 348,070

Note 6 - Related Party Transa_2

Note 6 - Related Party Transactions (Tables)	6 Months Ended
	Nov. 30, 2018
Notes Tables
Schedule of Related Party Transactions [Table Text Block]	For the six months ended November 30, 2018 2017 Consulting fees to CFO $ 45,000 $ 40,000 Wages and benefits to CEO and COO 360,007 285,934 Directors fees (included in consulting fees) 67,500 70,500 Stock-based compensation to related parties 217,797 262,035 $ 690,304 $ 658,469

Note 7 - Geographic Segmented_2

Note 7 - Geographic Segmented Information (Tables)	6 Months Ended
	Nov. 30, 2018
Notes Tables
Long-lived Assets by Geographic Areas [Table Text Block]	Canada United States Total November 30, 2018 Capitalized acquisition costs $ - $ 5,491,241 $ 5,491,241 Property and equipment $ 9,520 $ 42,445 $ 51,965 May 31, 2018 Capitalized acquisition costs $ - $ 5,238,789 $ 5,238,789 Property and equipment $ 11,200 $ 45,290 $ 56,490
Net Income (Loss) by Geographic Areas [Table Text Block]	For the period ended November 30, 2018 2017 Net loss for the period - Canada $ (1,366,653 ) $ (1,201,985 ) Net loss for the period - United States (3,742,573 ) (2,980,062 ) Net loss for the period $ (5,109,226 ) $ (4,182,047 )

Note 8 - Subsidiaries (Tables)

Note 8 - Subsidiaries (Tables)	6 Months Ended
	Nov. 30, 2018
Notes Tables
Schedule of Significant Subsidiaries [Table Text Block]	Country of Principal The Company’s The Company’s Corvus Gold (USA) Inc. USA Holding company 100 % 100 % Raven Gold Alaska Inc. USA Exploration company 100 % 100 % Corvus Gold Nevada Inc. USA Exploration company 100 % 100 % SoN Land & Water LLC USA Exploration company 100 % 100 % Mother Lode Mining Company LLC USA Exploration company 100 % 100 %

Note 9 - Supplemental Cash Fl_2

Note 9 - Supplemental Cash Flow Information (Tables)	6 Months Ended
	Nov. 30, 2018
Notes Tables
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	For the six months ended November 30, 2018 2017 Supplemental cash flow information Interest paid $ - $ - Income taxes paid (received) $ - $ - Non-cash financing and investing transactions Shares issued to acquire mineral properties $ 59,500 $ 847,000 Reclassification of contributed surplus on exercise of stock options $ 2,736,339 $ 123,302

Note 1 - Nature and Continuan_2

Note 1 - Nature and Continuance of Operations (Details Textual) - CAD ($)	Dec. 20, 2018	Jun. 07, 2018	Nov. 30, 2018	Nov. 30, 2018	Nov. 30, 2017	May 31, 2018
Working Capital			$ 5,665,947	$ 5,665,947		$ 2,562,047
Proceeds from Issuance of Private Placement		$ 4,500,002
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period			4,036,900	4,036,900	256,660
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price			$ 0.86	$ 0.86	$ 0.66
Proceeds from Stock Options Exercised			$ 3,453,924
Subsequent Event [Member]
Proceeds from Issuance of Private Placement	$ 2,080,000
Private Placement [Member]
Stock Issued During Period, Shares, New Issues		1,730,770
Shares Issued, Price Per Share		$ 2.60
Proceeds from Issuance of Private Placement		$ 4,500,002
Private Placement [Member] | Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues	800,000
Shares Issued, Price Per Share	$ 2.60

Note 2 - Significant Accounti_2

Note 2 - Significant Accounting Policies (Details Textual) - shares	6 Months Ended
	Nov. 30, 2018	Nov. 30, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	10,315,000	9,861,900

Note 3 - Property and Equipme_3

Note 3 - Property and Equipment - Property and Equipment (Details) - CAD ($)	3 Months Ended		6 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2018	Nov. 30, 2017	May 31, 2018
Cost, Balance			$ 236,687
Additions			1,769
Currency translation adjustments			5,831
Cost, Balance	$ 244,287		244,287
Accumulated depreciation, Balance			180,197
Depreciation	3,802	$ 4,695	7,475	$ 9,009
Currency translation adjustments			4,650
Accumulated depreciation, Balance	192,322		192,322
Carrying amounts	51,965		51,965		$ 56,490
Computer Equipment [Member]
Cost, Balance			83,619
Additions			1,769
Currency translation adjustments			1,659
Cost, Balance	87,047		87,047
Accumulated depreciation, Balance			60,144
Depreciation			3,675
Currency translation adjustments			1,316
Accumulated depreciation, Balance	65,135		65,135
Carrying amounts	21,912		21,912		23,475
Vehicles [Member]
Cost, Balance			88,328
Additions
Currency translation adjustments			2,407
Cost, Balance	90,735		90,735
Accumulated depreciation, Balance			79,178
Depreciation			1,387
Currency translation adjustments			2,181
Accumulated depreciation, Balance	82,746		82,746
Carrying amounts	7,989		7,989		9,150
Tent [Member]
Cost, Balance			64,740
Additions
Currency translation adjustments			1,765
Cost, Balance	66,505		66,505
Accumulated depreciation, Balance			40,875
Depreciation			2,413
Currency translation adjustments			1,153
Accumulated depreciation, Balance	44,441		44,441
Carrying amounts	$ 22,064		$ 22,064		$ 23,865

Note 4 - Mineral Properties (De

Note 4 - Mineral Properties (Details Textual) $ / shares in Units, T in Millions		Nov. 26, 2018shares	Nov. 15, 2018CAD ($)shares	Nov. 15, 2018USD ($)shares	Nov. 30, 2017CAD ($)shares	Nov. 22, 2017USD ($)	Jun. 09, 2017$ / shares$ / ozshares	Nov. 18, 2016shares	Nov. 17, 2016USD ($)	Nov. 10, 2016CAD ($)shares	Nov. 23, 2015USD ($)	Nov. 18, 2015shares	Nov. 05, 2015CAD ($)shares	Mar. 30, 2015USD ($)	Nov. 17, 2014USD ($)	Nov. 07, 2014CAD ($)shares	Nov. 25, 2013CAD ($)shares	Nov. 13, 2013USD ($)	Mar. 28, 2013USD ($)T$ / T	Oct. 31, 2012USD ($)	Oct. 25, 2012CAD ($)shares	Mar. 01, 2011USD ($)	Dec. 02, 2010USD ($)shares	Nov. 10, 2010USD ($)	Oct. 27, 2008USD ($)	Dec. 01, 2007USD ($)shares	Jun. 16, 2006USD ($)	May 22, 2006USD ($)	May 16, 2006USD ($)	May 08, 2006USD ($)	Dec. 31, 2013CAD ($)a	Dec. 31, 2013USD ($)a	Nov. 30, 2018CAD ($)	Dec. 31, 2014shares	Dec. 31, 2013ashares	May 31, 2013CAD ($)	May 31, 2013USD ($)	Dec. 31, 2012shares	Dec. 31, 2011shares	Mar. 31, 2015shares	Nov. 30, 2018USD ($)	May 31, 2018CAD ($)	May 31, 2018USD ($)	Mar. 31, 2018USD ($)	Mar. 01, 2015USD ($)	May 29, 2014USD ($)	Mar. 01, 2014USD ($)	May 31, 2013USD ($)	Mar. 01, 2013USD ($)	Mar. 01, 2012USD ($)
Payments to Acquire Mineral Rights	[1]																																$ 47,318
Asset Retirement Obligations, Noncurrent, Total																																	$ 378,397								$ 284,000	$ 366,641	$ 283,000
North Bullfrog [Member]
Unpatented Mineral Claims																																	100.00%
Payments to Acquire Mineral Rights	[1],[2]																																$ 47,318
Land Subject to Ground Leases | a																															1,600	1,600			1,600
North Bullfrog [Member] | Nevada Corporation [Member]
Number of Patented Mining Claims Leased																														2
Mining Lease Agreement Term of Contract																														10 years
Capital Leases, Future Minimum Payments, Remainder of Fiscal Year																														$ 2,000																$ 2,400
Capital Leases, Future Minimum Payments Due in Three Years																														2,000																2,400
Capital Leases, Future Minimum Payments Due Thereafter																														$ 3,000																$ 3,600
Net Smelter Return, Royalty Percentage of Production																														3.00%																3.00%
Purchase Price of Each 1% NSR Royalty																														$ 850,000																$ 770,000
Purchase Price of NSR Royalty																														2,550,000																2,310,000
Capital Leases, Future Minimum Payments Due in Four Years																														2,000																2,400
Capital Leases, Future Minimum Payments Due in Two Years																														2,000																2,400
Capital Leases, Future Minimum Payments Due in Five Years																														$ 3,000																$ 3,600
North Bullfrog [Member] | Redstar Gold Corp. [Member]
Number of Patented Mining Claims Leased																									12		1	3	12	3
Mining Lease Agreement Term of Contract																									10 years		10 years	10 years	10 years	10 years
Capital Leases, Future Minimum Payments, Remainder of Fiscal Year																									$ 10,800		$ 2,000	$ 8,000	$ 20,500	$ 4,000
Capital Leases, Future Minimum Payments Due in Three Years																									10,800		2,000	4,800		3,500
Capital Leases, Future Minimum Payments Due Thereafter																									16,200		$ 3,000	$ 7,200	$ 20,000	$ 4,500
Purchase Obligation, Total																									$ 1,000,000
Net Smelter Return, Royalty Percentage of Production																									4.00%		2.00%	2.00%	4.00%	2.00%
Purchase Price of Each 1% NSR Royalty																									$ 1,250,000		$ 1,000,000	$ 1,000,000	$ 1,000,000	$ 1,000,000
Purchase Price of NSR Royalty																									$ 5,000,000		2,000,000	2,000,000	$ 4,000,000	2,000,000
Capital Leases, Future Minimum Payments Due in Four Years																											2,000	4,800		3,500
Capital Leases, Future Minimum Payments Due in Two Years																											2,000	4,800		3,500
Capital Leases, Future Minimum Payments Due in Five Years																											$ 3,000	$ 7,200		$ 4,500
North Bullfrog [Member] | Corvus Gold Nevada Inc. [Member]
Number of Patented Mining Claims Leased																						2
Mining Lease Agreement Term of Contract																						10 years
Net Smelter Return, Royalty Percentage of Production														4.00%								2.00%
Purchase Price of Each 1% NSR Royalty														$ 500,000								$ 1,000,000
Purchase Price of NSR Royalty														$ 2,000,000								2,000,000
Lease Term														3 years												5 years
Additional Lease Term														7 years												5 years
Additional Term if the Company Makes Advance Minimum Royalty Payments of USD100,000 per year																										3 years
Advance Royalties Payment														$ 5,000								$ 20,000				$ 100,000																		$ 5,000	$ 30,000		$ 25,000		$ 25,000	$ 25,000
Mining Lease Agreement Term of Contract, Extension Term																						10 years				10 years
Lease Payment for Patented Mining Claims Lease				$ 10,000		$ 10,000			$ 10,000		$ 10,000				$ 10,000			$ 10,000		$ 10,000						$ 5,000
Lease Payments Common Shares Issued | shares		25,000			25,000			25,000				25,000																						25,000	25,000			25,000	10,000	85,000
Additional Lease Payment for Patented Mining Claims Lease on Each Year																										$ 5,000
Lease Payments Additional Common Shares Issued | shares																										20,000
Cash Payment in Lieu of Issuing Shares Under Lease Agreement																								$ 108,750
Common Stock Issued During Period Shares Issued for Lease Payments | shares																							46,250
Lease Payment for Patended Mining Claims Upon Extend Lease																							$ 10,000
Cash Payment Along with Shares Issued as Lease Payment			$ 34,116		$ 25,655					$ 53,447			$ 19,237			$ 21,200	$ 35,871				$ 126,924
Work Commitments for the First Three Year																										$ 100,000
Work Commitments for the Years 4 to 6																										200,000
Work Commitments for the years 7 to 10																										300,000
Work Commitments for the years 11 to 20																										$ 300,000
Percentage of NSR Royalty Required to Pay If Average Gold Price Less than or Equal to USD400 per Ounce																										2.00%
Percentage of NSR Royalty Required to Pay If Average Gold Price Between USD401 and USD500 per Ounce																										3.00%
Percentage of NSR Royalty Required to Pay if Average Gold Price Greater than USD500 per Ounce																										4.00%
Patented Mining Claims, Agreed to Purchase																			5
Purchase Agreement Payable																			$ 160,000
Price Per Ton Of Overburden to be Stored On Property | $ / T																			0.02
Minimum Storage Capacity of Property | T																			12
Notes Payable, Total																			$ 240,000																	$ 248,832												$ 240,000
Acquisition Costs, Period Cost																																				406,240	$ 400,000
Payments to Acquire Mineral Rights																																				$ 157,408
Number of Patented Sunflower Claims														3
Lease Agreement, Option to Purchase Property, Purcahse Price														$ 300,000
Stock Issued During Period, Shares, Acquisitions | shares		25,000
North Bullfrog [Member] | Corvus Gold Nevada Inc. [Member] | Promissory Note Payable [Member]
Debt Instrument, Interest Rate, Effective Percentage																			4.77%
North Bullfrog [Member] | International Tower Hill Mines Ltd. [Member]
Lease Payments Common Shares Issued | shares			50,000	50,000	50,000					50,000			50,000			50,000	50,000				50,000					25,000
Lease Payments Common Shares Issued Upon Extend Lease | shares																							50,000
Lease Payments Additional Common Shares Issued Upon Extend Lease | shares																							50,000
Land and Water Rights [Member]
Payments to Acquire Mineral Rights																															$ 1,100,118	$ 1,034,626
Mother Lode Property [Member]
Payments to Acquire Mineral Rights
Mother Lode Property [Member] | Goldcorp USA, Inc [Member]
Stock Issued During Period, Shares, Acquisitions | shares							1,000,000
Shares Issued, Price Per Share | $ / shares							$ 0.81
Mother Lode Property [Member] | Goldcorp USA, Inc [Member]
Net Smelter Return, Royalty Percentage of Production Based on Specified Maximum Gold Price							1.00%
Net Smelter Return, Maximum Gold Price | $ / oz							1,400
Net Smelter Return, Additional Royalty Percentage of Production Based on Specified Minimum Gold Price							1.00%
Net Smelter Return, Total Royalty Percentage of Production							2.00%
Net Smelter Return, Minimum Gold Price | $ / oz							1,400
[1]	Pursuant to a mining lease and option to purchase agreement made effective December 1, 2007 between Corvus Nevada and a group of arm's length limited partnerships, Corvus Nevada has leased (and has the option to purchase) patented mining claims referred to as the "Mayflower" claims which form part of the North Bullfrog project. The terms of the lease/option are as follows: Terms: Initial term of five years, commencing December 1, 2007, with the option to extend the lease for an additional five years. The lease will continue for as long thereafter as the property is in commercial production or, alternatively, for an additional three years if Corvus Nevada makes advance minimum royalty payments of USD 100,000 per year (which are recoupable against actual production royalties). Pursuant to an extension agreement dated January 15, 2016 and fully executed and effective as of November 22, 2017, the parties agreed to extend the lease and option granted for an additional ten years with the same lease payment terms. Lease Payments: USD 5,000 (paid) and 25,000 common shares of ITH (delivered) following regulatory acceptance of the transaction; and an additional USD 5,000 and 20,000 common shares on each of the first through fourth lease anniversaries (paid and issued). Pursuant to an agreement with the lessors, in lieu of the 20,000 ITH common shares due December 1, 2010, Corvus Nevada paid USD 108,750 on November 10, 2010 and delivered 46,250 common shares of the Company on December 2, 2010. If Corvus Nevada elects to extend the lease for a second five-year term, it will pay USD 10,000 and deliver 50,000 common shares of ITH upon election being made, and an additional 50,000 common shares of ITH on each of the fifth through ninth anniversaries (USD 10,000 paid on October 31, 2012 and 50,000 common shares of ITH delivered on October 25, 2012 paid with cash of $126,924; USD 10,000 paid on November 13, 2013 and 50,000 common shares of ITH delivered on November 25, 2013 paid with cash of $35,871; USD 10,000 paid on November 17, 2014 and 50,000 common shares of ITH delivered on November 7, 2014 paid with cash of $21,200; USD 10,000 paid on November 23, 2015 and 50,000 common shares of ITH delivered on November 5, 2015 paid with cash of $19,237; USD 10,000 paid on November 17, 2016 and 50,000 common shares of ITH, purchased for $53,447 in the market by the Company, were delivered on November 10, 2016; and USD 10,000 paid on November 22, 2017 and 50,000 common shares of ITH, purchased for $25,655 in the market by the Company, were delivered on November 30, 2017; and USD 10,000 paid on November 15, 2018 and 50,000 common shares of ITH, purchased for $34,116 in the market by the Company, were delivered on November 6, 2018). Anti-Dilution: Pursuant to an amended agreement agreed to by the lessors in March 2015, the Company shall deliver a total of 85,000 common shares (issued) of the Company for the years 2011 to 2014 (2011: 10,000 common shares; 2012 to 2014: 25,000 common shares each year). All future payments will be satisfied by the delivery of an additional 1/2 common shares of the Company for each of the ITH common shares due per the original agreement (issued 25,000 common shares of the Company on November 18, 2015; 25,000 shares of the Company on November 18, 2016; 25,000 shares of the Company on November 30, 2017 and 25,000 shares of the Company on November 26, 2018). Work Commitments: USD 100,000 per year for the first three years (incurred), USD 200,000 per year for the years four to six (incurred), USD 300,000 for the years seven to ten (incurred) and USD 300,000 for the years 11 - 20 (incurred). Excess expenditures in any year may be carried forward. If Corvus Nevada does not incur the required expenditures in year one, the deficiency is required to be paid to the lessors. Retained Royalty: Corvus Nevada will pay the lessors a NSR royalty of 2% if the average gold price is USD 400 per ounce or less, 3% if the average gold price is between USD 401 and USD 500 per ounce and 4% if the average gold price is greater than USD 500 per ounce.
[2]	North Bullfrog Project, Nevada The Company's North Bullfrog project consists of certain leased patented lode mining claims and federal unpatented mining claims owned 100% by the Company.

Note 4 - Mineral Properties - A

Note 4 - Mineral Properties - Activity Related to Capitalized Acquisition Costs (Details)	6 Months Ended
	Nov. 30, 2018CAD ($)
Balance	$ 5,238,789
Cash payments (note 4a)(ii)(1)	47,318	[1]
Share issued for capitalized acquisition costs	59,500	[1]
Asset retirement obligations	1,760
Currency translation adjustments	143,874
Balance	5,491,241
North Bullfrog [Member]
Balance	4,428,752	[2]
Cash payments (note 4a)(ii)(1)	47,318	[1],[2]
Share issued for capitalized acquisition costs	59,500	[1]
Asset retirement obligations
Currency translation adjustments	121,787	[2]
Balance	4,657,357	[2]
Mother Lode Property [Member]
Balance	810,037	[3]
Cash payments (note 4a)(ii)(1)
Share issued for capitalized acquisition costs
Asset retirement obligations	1,760	[3]
Currency translation adjustments	22,087	[3]
Balance	$ 833,884	[3]
[1]	Pursuant to a mining lease and option to purchase agreement made effective December 1, 2007 between Corvus Nevada and a group of arm's length limited partnerships, Corvus Nevada has leased (and has the option to purchase) patented mining claims referred to as the "Mayflower" claims which form part of the North Bullfrog project. The terms of the lease/option are as follows: Terms: Initial term of five years, commencing December 1, 2007, with the option to extend the lease for an additional five years. The lease will continue for as long thereafter as the property is in commercial production or, alternatively, for an additional three years if Corvus Nevada makes advance minimum royalty payments of USD 100,000 per year (which are recoupable against actual production royalties). Pursuant to an extension agreement dated January 15, 2016 and fully executed and effective as of November 22, 2017, the parties agreed to extend the lease and option granted for an additional ten years with the same lease payment terms. Lease Payments: USD 5,000 (paid) and 25,000 common shares of ITH (delivered) following regulatory acceptance of the transaction; and an additional USD 5,000 and 20,000 common shares on each of the first through fourth lease anniversaries (paid and issued). Pursuant to an agreement with the lessors, in lieu of the 20,000 ITH common shares due December 1, 2010, Corvus Nevada paid USD 108,750 on November 10, 2010 and delivered 46,250 common shares of the Company on December 2, 2010. If Corvus Nevada elects to extend the lease for a second five-year term, it will pay USD 10,000 and deliver 50,000 common shares of ITH upon election being made, and an additional 50,000 common shares of ITH on each of the fifth through ninth anniversaries (USD 10,000 paid on October 31, 2012 and 50,000 common shares of ITH delivered on October 25, 2012 paid with cash of $126,924; USD 10,000 paid on November 13, 2013 and 50,000 common shares of ITH delivered on November 25, 2013 paid with cash of $35,871; USD 10,000 paid on November 17, 2014 and 50,000 common shares of ITH delivered on November 7, 2014 paid with cash of $21,200; USD 10,000 paid on November 23, 2015 and 50,000 common shares of ITH delivered on November 5, 2015 paid with cash of $19,237; USD 10,000 paid on November 17, 2016 and 50,000 common shares of ITH, purchased for $53,447 in the market by the Company, were delivered on November 10, 2016; and USD 10,000 paid on November 22, 2017 and 50,000 common shares of ITH, purchased for $25,655 in the market by the Company, were delivered on November 30, 2017; and USD 10,000 paid on November 15, 2018 and 50,000 common shares of ITH, purchased for $34,116 in the market by the Company, were delivered on November 6, 2018). Anti-Dilution: Pursuant to an amended agreement agreed to by the lessors in March 2015, the Company shall deliver a total of 85,000 common shares (issued) of the Company for the years 2011 to 2014 (2011: 10,000 common shares; 2012 to 2014: 25,000 common shares each year). All future payments will be satisfied by the delivery of an additional 1/2 common shares of the Company for each of the ITH common shares due per the original agreement (issued 25,000 common shares of the Company on November 18, 2015; 25,000 shares of the Company on November 18, 2016; 25,000 shares of the Company on November 30, 2017 and 25,000 shares of the Company on November 26, 2018). Work Commitments: USD 100,000 per year for the first three years (incurred), USD 200,000 per year for the years four to six (incurred), USD 300,000 for the years seven to ten (incurred) and USD 300,000 for the years 11 - 20 (incurred). Excess expenditures in any year may be carried forward. If Corvus Nevada does not incur the required expenditures in year one, the deficiency is required to be paid to the lessors. Retained Royalty: Corvus Nevada will pay the lessors a NSR royalty of 2% if the average gold price is USD 400 per ounce or less, 3% if the average gold price is between USD 401 and USD 500 per ounce and 4% if the average gold price is greater than USD 500 per ounce.
[2]	North Bullfrog Project, Nevada The Company's North Bullfrog project consists of certain leased patented lode mining claims and federal unpatented mining claims owned 100% by the Company.
[3]	Mother Lode Property, Nevada Pursuant to a purchase agreement made effective June 9, 2017 between Corvus Nevada and Goldcorp USA, Inc. ("Goldcorp USA"), Corvus Nevada has acquired 100% of the Mother Lode property (the "Mother Lode Property"). In addition, Corvus Nevada staked two additional adjacent claim blocks to the Mother Lode Property. In connection with the acquisition, the Company issued 1,000,000 common shares at a price of $0.81 per common share to Goldcorp USA. The Mother Lode Property is subject to an NSR in favour of Goldcorp USA. The NSR pays 1% from production at the Mother Lode Property when the price of gold is less than USD 1,400 per ounce and an additional 1% NSR for a total of 2% NSR when gold price is greater than or equal to USD 1,400 per ounce.

Note 4 - Mineral Properties - C

Note 4 - Mineral Properties - Costs Incurred for Exploration and Evaluation Activities (Details) - CAD ($)		3 Months Ended		6 Months Ended
		Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2018	Nov. 30, 2017
Exploration expenditures (notes 4 and 5)		$ 1,493,699	$ 1,723,609	$ 3,146,799	$ 2,451,948
North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]			266,811	771,692
Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]			2,879,988	1,680,256
Assay [Member]
Exploration expenditures (notes 4 and 5)				288,804	174,966
Assay [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)					44,148	[1]
Assay [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]			288,804	130,818
Drilling [Member]
Exploration expenditures (notes 4 and 5)				1,096,080	865,636
Drilling [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]			1,239
Costs Recovered for Exploration and Evaluation Activities, Gross	[1]				(3,265)
Drilling [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]			1,094,841	868,901
Equipment rental [Member]
Exploration expenditures (notes 4 and 5)				36,404	65,051
Equipment rental [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)					14,616	[1]
Equipment rental [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]			36,404	50,435
Field Costs [Member]
Exploration expenditures (notes 4 and 5)				116,659	185,064
Field Costs [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]			322	14,133
Field Costs [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]			116,337	170,931
Geological Geophysical [Member]
Exploration expenditures (notes 4 and 5)				322,724	316,764
Geological Geophysical [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]			27,661	49,931
Geological Geophysical [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]			295,063	266,833
Land Maintenance and Tenure [Member]
Exploration expenditures (notes 4 and 5)				477,897	263,001
Land Maintenance and Tenure [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]			223,584	220,204
Land Maintenance and Tenure [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]			254,313	42,797
Permits [Member]
Exploration expenditures (notes 4 and 5)				73,906	41,772
Permits [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]			5,602	6,240
Permits [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]			68,304	35,532
Studies [Member]
Exploration expenditures (notes 4 and 5)				676,074	486,754
Studies [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]			8,403	416,391
Studies [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]			667,671	70,363
Travel [Member]
Exploration expenditures (notes 4 and 5)				58,251	52,940
Travel [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)					9,294	[1]
Travel [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]			$ 58,251	$ 43,646
[1]	North Bullfrog Project, Nevada The Company's North Bullfrog project consists of certain leased patented lode mining claims and federal unpatented mining claims owned 100% by the Company.
[2]	Mother Lode Property, Nevada Pursuant to a purchase agreement made effective June 9, 2017 between Corvus Nevada and Goldcorp USA, Inc. ("Goldcorp USA"), Corvus Nevada has acquired 100% of the Mother Lode property (the "Mother Lode Property"). In addition, Corvus Nevada staked two additional adjacent claim blocks to the Mother Lode Property. In connection with the acquisition, the Company issued 1,000,000 common shares at a price of $0.81 per common share to Goldcorp USA. The Mother Lode Property is subject to an NSR in favour of Goldcorp USA. The NSR pays 1% from production at the Mother Lode Property when the price of gold is less than USD 1,400 per ounce and an additional 1% NSR for a total of 2% NSR when gold price is greater than or equal to USD 1,400 per ounce.

Note 5 - Share Capital (Details

Note 5 - Share Capital (Details Textual) - CAD ($)		Nov. 26, 2018	Jun. 07, 2018	Nov. 30, 2018	Nov. 30, 2018	Nov. 30, 2017	May 31, 2018
Sale of Stock, Price Per Share				$ 0.86	$ 0.86
Proceeds from Issuance of Private Placement			$ 4,500,002
Payments of Stock Issuance Costs					$ 20,816	$ 22,491
Stock Issued During Period, Value, Acquisitions	[1]				$ 59,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period				4,036,900	4,036,900	256,660
Proceeds from Stock Options Exercised				$ 3,453,924
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term					3 years 189 days		1 year 270 days
Employee Stock Option [Member]
Stock Granted, Value, Share-based Compensation, Gross					$ 6,939,946	$ 951,067
Employee Stock Option, Expiring on November 17, 2016 [Member]
Options Exercisable Period, After Restrictions Lifted					10 days
The 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period					4,036,900
The 2010 Plan [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum					10.00%
The 2010 Plan [Member] | Employee Stock Option [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period					10 years
North Bullfrog [Member]
Stock Issued During Period, Value, Acquisitions	[1]				$ 59,500
North Bullfrog [Member] | Corvus Gold Nevada Inc. [Member]
Stock Issued During Period, Shares, Acquisitions		25,000
Stock Issued During Period, Value, Acquisitions		$ 59,500
Private Placement [Member]
Stock Issued During Period, Shares, New Issues			1,730,770
Sale of Stock, Price Per Share			$ 2.60
Proceeds from Issuance of Private Placement			$ 4,500,002
Payments of Stock Issuance Costs			$ 14,605
[1]	Pursuant to a mining lease and option to purchase agreement made effective December 1, 2007 between Corvus Nevada and a group of arm's length limited partnerships, Corvus Nevada has leased (and has the option to purchase) patented mining claims referred to as the "Mayflower" claims which form part of the North Bullfrog project. The terms of the lease/option are as follows: Terms: Initial term of five years, commencing December 1, 2007, with the option to extend the lease for an additional five years. The lease will continue for as long thereafter as the property is in commercial production or, alternatively, for an additional three years if Corvus Nevada makes advance minimum royalty payments of USD 100,000 per year (which are recoupable against actual production royalties). Pursuant to an extension agreement dated January 15, 2016 and fully executed and effective as of November 22, 2017, the parties agreed to extend the lease and option granted for an additional ten years with the same lease payment terms. Lease Payments: USD 5,000 (paid) and 25,000 common shares of ITH (delivered) following regulatory acceptance of the transaction; and an additional USD 5,000 and 20,000 common shares on each of the first through fourth lease anniversaries (paid and issued). Pursuant to an agreement with the lessors, in lieu of the 20,000 ITH common shares due December 1, 2010, Corvus Nevada paid USD 108,750 on November 10, 2010 and delivered 46,250 common shares of the Company on December 2, 2010. If Corvus Nevada elects to extend the lease for a second five-year term, it will pay USD 10,000 and deliver 50,000 common shares of ITH upon election being made, and an additional 50,000 common shares of ITH on each of the fifth through ninth anniversaries (USD 10,000 paid on October 31, 2012 and 50,000 common shares of ITH delivered on October 25, 2012 paid with cash of $126,924; USD 10,000 paid on November 13, 2013 and 50,000 common shares of ITH delivered on November 25, 2013 paid with cash of $35,871; USD 10,000 paid on November 17, 2014 and 50,000 common shares of ITH delivered on November 7, 2014 paid with cash of $21,200; USD 10,000 paid on November 23, 2015 and 50,000 common shares of ITH delivered on November 5, 2015 paid with cash of $19,237; USD 10,000 paid on November 17, 2016 and 50,000 common shares of ITH, purchased for $53,447 in the market by the Company, were delivered on November 10, 2016; and USD 10,000 paid on November 22, 2017 and 50,000 common shares of ITH, purchased for $25,655 in the market by the Company, were delivered on November 30, 2017; and USD 10,000 paid on November 15, 2018 and 50,000 common shares of ITH, purchased for $34,116 in the market by the Company, were delivered on November 6, 2018). Anti-Dilution: Pursuant to an amended agreement agreed to by the lessors in March 2015, the Company shall deliver a total of 85,000 common shares (issued) of the Company for the years 2011 to 2014 (2011: 10,000 common shares; 2012 to 2014: 25,000 common shares each year). All future payments will be satisfied by the delivery of an additional 1/2 common shares of the Company for each of the ITH common shares due per the original agreement (issued 25,000 common shares of the Company on November 18, 2015; 25,000 shares of the Company on November 18, 2016; 25,000 shares of the Company on November 30, 2017 and 25,000 shares of the Company on November 26, 2018). Work Commitments: USD 100,000 per year for the first three years (incurred), USD 200,000 per year for the years four to six (incurred), USD 300,000 for the years seven to ten (incurred) and USD 300,000 for the years 11 - 20 (incurred). Excess expenditures in any year may be carried forward. If Corvus Nevada does not incur the required expenditures in year one, the deficiency is required to be paid to the lessors. Retained Royalty: Corvus Nevada will pay the lessors a NSR royalty of 2% if the average gold price is USD 400 per ounce or less, 3% if the average gold price is between USD 401 and USD 500 per ounce and 4% if the average gold price is greater than USD 500 per ounce.

Note 5 - Share Capital - Summar

Note 5 - Share Capital - Summary of the Status of the Stock Option Plan (Details) - $ / shares	1 Months Ended	6 Months Ended
	Nov. 30, 2018	Nov. 30, 2018	Nov. 30, 2017
Number of Options, Balance (in shares)		9,861,900	8,846,900
Weighted Average Exercise Price, Balance (in CAD per share)		$ 0.85	$ 0.87
Number of Options, Granted (in shares)		4,520,000	1,840,000
Weighted Average Exercise Price, Granted (in CAD per share)		$ 2.06	$ 0.77
Number of Options, Exercised (in shares)	(4,036,900)	(4,036,900)	(256,660)
Weighted Average Exercise Price, Exercised (in CAD per share)	$ (0.86)	$ (0.86)	$ (0.66)
Number of Options, Forfeited (in shares)		(30,000)	(568,340)
Weighted Average Exercise Price, Forfeited (in CAD per share)		$ (0.96)	$ (0.93)
Number of Options, Balance (in shares)	10,315,000	10,315,000	9,861,900
Weighted Average Exercise Price, Balance (in CAD per share)	$ 1.38	$ 1.38	$ 0.85

Note 5 - Share Capital - Stock

Note 5 - Share Capital - Stock Options Outstanding (Details) - $ / shares		Nov. 30, 2018	May 31, 2018	Nov. 30, 2017	May 31, 2017
Exercise Price (in CAD per share)		$ 1.38	$ 0.85	$ 0.85	$ 0.87
Number of Options (in shares)		10,315,000	9,861,900	9,861,900	8,846,900
Exercisable at Year- End (in shares)		4,567,720	7,659,510
Employee Stock Option, Expiring on September 19, 2017 [Member]
Exercise Price (in CAD per share)	[1]	$ 0.96	$ 0.96
Number of Options (in shares)	[1]		1,966,900
Exercisable at Year- End (in shares)	[1]		1,966,900
Employee Stock Option, Expiring on August 16, 2018 [Member]
Exercise Price (in CAD per share)	[1]	$ 0.76	$ 0.76
Number of Options (in shares)	[1]		2,095,000
Exercisable at Year- End (in shares)	[1]		2,095,000
Employee Stock Option, Expiring on September 8, 2019 [Member]
Exercise Price (in CAD per share)		$ 1.40	$ 1.40
Number of Options (in shares)		1,250,000	1,250,000
Exercisable at Year- End (in shares)		1,250,000	1,250,000
Employee Stock Option, Expiring on September 9, 2020 [Member]
Exercise Price (in CAD per share)		$ 0.46	$ 0.46
Number of Options (in shares)		620,000	625,000
Exercisable at Year- End (in shares)		620,000	625,000
Employee Stock Option, Expiring on November 13, 2020 [Member]
Exercise Price (in CAD per share)		$ 0.49	$ 0.49
Number of Options (in shares)		1,000,000	1,000,000
Exercisable at Year- End (in shares)		1,000,000	1,000,000
Employee Stock Option, Expiring on September 15, 2021 [Member]
Exercise Price (in CAD per share)		$ 0.91	$ 0.91
Number of Options (in shares)		1,085,000	1,085,000
Exercisable at Year- End (in shares)		1,085,000	722,610
Employee Stock Option, Expiring on July 31, 2022 [Member]
Exercise Price (in CAD per share)		$ 0.77	$ 0.77
Number of Options (in shares)		1,840,000	1,840,000
Exercisable at Year- End (in shares)		612,720
Employee Stock Option, Expiring on November 19, 2018 [Member]
Exercise Price (in CAD per share)		$ 2.06
Number of Options (in shares)		4,520,000
Exercisable at Year- End (in shares)
[1]	The Company's share trading policy (the "Policy") requires that all restricted persons and others who are subject to the Policy refrain from conducting any transactions involving the purchase or sale of the Company's securities, during the period in any quarter commencing 30 days prior to the scheduled issuance of the next quarter or year-end public disclosure of the financial results as well as when there is material data on hand. In accordance with the terms of the Amended 2010 Plan, if stock options are set to expire during a restricted period and are not exercised prior to any such restriction, they will not expire but instead will be available for exercise for ten days after such restrictions are lifted.

Note 5 - Share Capital - Valuat

Note 5 - Share Capital - Valuation Assumptions for Stock Options (Details) - Employee Stock Option [Member] - $ / shares	6 Months Ended
	Nov. 30, 2018	Nov. 30, 2017
Risk-free interest rate	2.28%	1.65%
Expected life of options (Year)	5 years	5 years
Annualized volatility	73.69%	79.14%
Dividend yield	0.00%	0.00%
Exercise price (in CAD per share)	$ 2.06	$ 0.77
Fair value per share (in CAD per share)	$ 1.54	$ 0.52

Note 5 - Share Capital - Alloca

Note 5 - Share Capital - Allocation of Stock-based Compensation Expenses (Details) - CAD ($)	6 Months Ended
	Nov. 30, 2018	Nov. 30, 2017
Share-based Compensation	$ 309,369	$ 348,070
Consulting fees [Member]
Share-based Compensation	140,189	157,258
Exploration expenditures - Geological/geophysical [Member]
Share-based Compensation	27,661	27,179
Investor relations [Member]
Share-based Compensation	42,106	47,772
Professional Fees [Member]
Share-based Compensation	3,000	3,732
Wages and Benefits [Member]
Share-based Compensation	$ 96,413	$ 112,129

Note 6 - Related Party Transa_3

Note 6 - Related Party Transactions (Details Textual) - CAD ($)	Nov. 30, 2018	May 31, 2018
Accounts Payable and Accrued Liabilities, Total	$ 1,098	$ 15,537

Note 6 - Related Party Transa_4

Note 6 - Related Party Transactions - Transactions With Related Parties (Details) - CAD ($)	3 Months Ended		6 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2018	Nov. 30, 2017
Consulting fees to CFO	$ 129,994	$ 150,051	$ 270,689	$ 285,758
Share-based Compensation			309,369	348,070
Management compensation			690,304	658,469
Related Party Transaction [Member]
Share-based Compensation			217,797	262,035
Related Party Transaction [Member] | Chief Financial Officer [Member]
Consulting fees to CFO			45,000	40,000
Related Party Transaction [Member] | Chief Executive Officer [Member]
Wages and benefits			360,007	285,934
Related Party Transaction [Member] | Director [Member]
Directors fees (included in consulting fees)			$ 67,500	$ 70,500

Note 7 - Geographic Segmented_3

Note 7 - Geographic Segmented Information (Details Textual)	6 Months Ended
	Nov. 30, 2018
Number of Operating Segments	1
Number of Reportable Segments	2

Note 7 - Geographic Segmented_4

Note 7 - Geographic Segmented Information - Long-lived Assets, by Geographical Areas (Details) - CAD ($)	Nov. 30, 2018	May 31, 2018
Capitalized acquisition costs	$ 5,491,241	$ 5,238,789
Property and equipment	51,965	56,490
Operating Segments [Member]
Capitalized acquisition costs	5,491,241	5,238,789
Property and equipment	51,965	56,490
CANADA | Operating Segments [Member]
Capitalized acquisition costs	0	0
Property and equipment	9,520	11,200
UNITED STATES | Operating Segments [Member]
Capitalized acquisition costs	5,491,241	5,238,789
Property and equipment	$ 42,445	$ 45,290

Note 7 - Geographic Segmented_5

Note 7 - Geographic Segmented Information - Net Income (Loss) by Geographic Areas (Details) - CAD ($)	3 Months Ended		6 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2018	Nov. 30, 2017
Net loss for the period	$ (2,666,778)	$ (2,555,882)	$ (5,109,226)	$ (4,182,047)
CANADA
Net loss for the period			(1,366,653)	(1,201,985)
UNITED STATES
Net loss for the period			$ (3,742,573)	$ (2,980,062)

Note 8 - Subsidiaries - Signifi

Note 8 - Subsidiaries - Significant Subsidiaries (Details)	6 Months Ended
	Nov. 30, 2018	Nov. 30, 2017
Corvus Gold (USA) Inc. [Member]
Country of Incorporation	USA
Principal Activity	Holding company
Effective Interest	100.00%	100.00%
Raven Gold Alaska Inc. [Member]
Country of Incorporation	USA
Principal Activity	Exploration company
Effective Interest	100.00%	100.00%
Corvus Gold Nevada Inc. [Member]
Country of Incorporation	USA
Principal Activity	Exploration company
Effective Interest	100.00%	100.00%
SoN Land and Water LLC [Member]
Country of Incorporation	USA
Principal Activity	Exploration company
Effective Interest	100.00%	100.00%
Mother Lode Mining Company LLC [Member]
Country of Incorporation	USA
Principal Activity	Exploration company
Effective Interest	100.00%	100.00%

Note 9 - Supplemental Cash Fl_3

Note 9 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - CAD ($)	6 Months Ended
	Nov. 30, 2018	Nov. 30, 2017
Interest paid
Income taxes paid (received)
Shares issued to acquire mineral properties	59,500	847,000
Reclassification of contributed surplus on exercise of stock options	$ 2,736,339	$ 123,302

Note 10 - Subsequent Event (Det

Note 10 - Subsequent Event (Details Textual) - CAD ($)	Dec. 20, 2018	Jun. 07, 2018
Proceeds from Issuance of Private Placement		$ 4,500,002
Subsequent Event [Member]
Proceeds from Issuance of Private Placement	$ 2,080,000
Private Placement [Member]
Stock Issued During Period, Shares, New Issues		1,730,770
Shares Issued, Price Per Share		$ 2.60
Proceeds from Issuance of Private Placement		$ 4,500,002
Private Placement [Member] | Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues	800,000
Shares Issued, Price Per Share	$ 2.60