Corvus Gold ULC (KOR) 10-Q 12 Oct 17 2018 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Aug. 31, 2017	Oct. 11, 2017
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	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		99,779,582
Document Type	10-Q
Document Period End Date	Aug. 31, 2017
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Amendment Flag	false

Condensed Interim Consolidated

Condensed Interim Consolidated Balance Sheets (Current Period Unaudited)	Aug. 31, 2017CAD	May 31, 2017CAD
Current assets
Cash and cash equivalents	CAD 4,438,555	CAD 1,300,553
Accounts receivable	14,802	13,524
Prepaid expenses	270,479	249,176
Total current assets	4,723,836	1,563,253
Property and equipment (note 3)	62,360	69,529
Capitalized acquisition costs (note 4)	4,959,185	4,527,740
Total assets	9,745,381	6,160,522
Current liabilities
Accounts payable and accrued liabilities (note 6)	189,104	293,085
Total current liabilities	189,104	293,085
Asset retirement obligations (note 4)	315,885	340,176
Total liabilities	504,989	633,261
Shareholders’ equity
Share capital (note 5)	78,351,407	72,670,170
Contributed surplus (note 5)	12,536,394	12,480,784
Accumulated other comprehensive income - cumulative translation differences	950,519	1,348,070
Deficit accumulated during the exploration stage	(82,597,928)	(80,971,763)
Total shareholders’ equity	9,240,392	5,527,261
Total liabilities and shareholders’ equity	CAD 9,745,381	CAD 6,160,522

Condensed Interim Consolidated3

Condensed Interim Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - CAD	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Operating expenses
Administration	CAD 105	CAD 361
Consulting fees (notes 5 and 6)	135,707	161,266
Depreciation (note 3)	4,314	5,322
Exploration expenditures (notes 4 and 5)	728,339	653,506
Insurance	49,848	29,482
Investor relations (notes 5 and 6)	146,981	145,480
Office and miscellaneous	40,175	28,885
Professional fees (note 5)	57,255	65,162
Regulatory	25,470	22,829
Rent	28,894	28,883
Travel	26,144	18,829
Wages and benefits (notes 5 and 6)	238,225	340,086
Total operating expenses	(1,481,457)	(1,500,091)
Other income (expense)
Interest income	441	8,764
Foreign exchange loss	(145,149)	(14,610)
Total other expense	(144,708)	(5,846)
Net loss for the period	(1,626,165)	(1,505,937)
Other comprehensive income (loss)
Exchange difference on translating foreign operations	(397,551)	19,882
Comprehensive loss for the period	CAD (2,023,716)	CAD (1,486,055)
Basic and diluted net loss per share (in CAD per share)	CAD (0.02)	CAD (0.02)
Weighted average number of shares outstanding (in shares)	97,209,473	91,105,452

Condensed Interim Consolidated4

Condensed Interim Consolidated Statements of Cash Flows (Unaudited) - CAD	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Operating activities
Net loss for the period	CAD (1,626,165)	CAD (1,505,937)
Add items not affecting cash:
Depreciation	4,314	5,322
Stock-based compensation (note 5)	158,638	176,238
Foreign exchange loss	145,149	14,610
Changes in non-cash items:
Accounts receivable	(1,278)	6,663
Prepaid expenses	(21,303)	2,740
Accounts payable and accrued liabilities	(103,981)	(117,364)
Cash used in operating activities	(1,444,626)	(1,417,728)
Financing activities
Cash received from issuance of shares	4,790,700	2,701,000
Share issuance costs	(22,491)	(11,515)
Cash provided by financing activities	4,768,209	2,689,485
Investing activities
Expenditures on property and equipment	(1,424)	(4,271)
Cash used in investing activities	(1,424)	(4,271)
Effect of foreign exchange on cash	(184,157)	(12,459)
Increase in cash and cash equivalents	3,138,002	1,255,027
Cash and cash equivalents, beginning of the period	1,300,553	4,783,519
Cash and cash equivalents, end of the period	CAD 4,438,555	CAD 6,038,546

Condensed Interim Consolidated5

Condensed Interim Consolidated Statement of Changes in Equity (Unaudited) - 3 months ended Aug. 31, 2017 - CAD	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at May. 31, 2017	92,369,582
Balance at May. 31, 2017	CAD 72,670,170	CAD 12,480,784	CAD 1,348,070	CAD (80,971,763)	CAD 5,527,261
Net loss for the period				(1,626,165)	(1,626,165)
Private placement (in shares)	6,200,000
Private placement	CAD 4,650,000				CAD 4,650,000
Exercise of stock options (in shares)	210,000				210,000
Exercise of stock options	CAD 140,700				CAD 140,700
Share issued for capitalized acquisition costs (in shares)	1,000,000
Share issued for capitalized acquisition costs	CAD 810,000				810,000	[1]
Exchange difference on translating foreign operations			(397,551)		(397,551)
Share issuance costs	(22,491)				(22,491)
Reclassification of contributed surplus on exercise of stock options	CAD 103,028	(103,028)
Stock-based compensation		158,638			158,638
Balance (in shares) at Aug. 31, 2017	99,779,582
Balance at Aug. 31, 2017	CAD 78,351,407	CAD 12,536,394	CAD 950,519	CAD (82,597,928)	CAD 9,240,392
[1]	Pursuant to a purchase agreement made effective June 9, 2017 between Corvus Nevada and Goldcorp USA, Inc., Corvus Nevada has acquired 100% of the Mother Lode Property. In addition, Corvus Nevada staked two additional adjacent claim blocks to Mother Lode. In connection with the acquisition, the Company issued 1,000,000 Common Shares at a price of $0.81 per share to Goldcorp USA, Inc. (note 5). The Mother Lode Property is subject to an NSR in favour of Goldcorp USA, Inc. 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 1 - Nature and Continuance

Note 1 - Nature and Continuance of Operations	3 Months Ended
	Aug. 31, 2017
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 August 31, 2017, 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 August 31, 2017, $4,534,732 $1,270,168 May 31, 2017. July 7, 2017, 6,200,000 $0.75 $4,650,000. not 12 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

Note 2 - Significant Accounting

Note 2 - Significant Accounting Policies	3 Months Ended
	Aug. 31, 2017
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2. SIGNIFICANT ACCOUNTING POLICIES Basis of presentation These unaudited condensed consolidated interim 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, 2017 10 August 31, 2017 three three August 31, 2017 not may May 31, 2018. 2017 not The preparation of 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 the 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 unaudited 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. 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 August 31, 2017, 9,976,900 2016 7,831,000 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 May 2014, No. 2014 09, 2014 09 2014 09, December 15, 2017. not In July 2015, No. 2015 11, 2015 11 first December 15, 2016. not In March 2016, No. 2016 02, No. 2016 02 No. 2016 02 not 12 not December 15, 2018. not In March 2016, No. 2016 04, No. 2016 04 December 15, 2017. not In March 2016, No. 2016 06, No. 2016 06 December 15, 2016. not In June 2016, No. 2016 13, No. 2016 13 not first December 15, 2019. December 15, 2018, not In August 2016, No. 2016 15, No. 2016 15 zero one December 15, 2017. not In October 2016, No. 2016 16, 2016 16 December 15, 2017. In November 2016, No. 2016 18, 2016 18 one December 15, 2017.

Note 3 - Property and Equipment

Note 3 - Property and Equipment	3 Months Ended
	Aug. 31, 2017
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	3. PROPERTY AND EQUIPMENT Computer Vehicles Tent Total Cost Balance, May 31, 2017 $ 78,341 $ 92,094 $ 67,500 $ 237,935 Additions 1,424 - - 1,424 Currency translation adjustments (4,327 ) (6,576 ) (4,820 ) (15,723 ) Balance, August 31, 2017 $ 75,438 $ 85,518 $ 62,680 $ 223,636 Depreciation Balance, May 31, 2017 $ 53,544 $ 78,466 $ 36,396 $ 168,406 Depreciation for the period 1,857 974 1,483 4,314 Currency translation adjustments (3,178 ) (5,629 ) (2,637 ) (11,444 ) Balance, August 31, 2017 $ 52,223 $ 73,811 $ 35,242 $ 161,276 Carrying amounts Balance, May 31, 2017 $ 24,797 $ 13,628 $ 31,104 $ 69,529 Balance, August 31, 2017 $ 23,215 $ 11,707 $ 27,438 $ 62,360

Note 4 - Mineral Properties

Note 4 - Mineral Properties	3 Months Ended
	Aug. 31, 2017
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, 2017 $ 4,527,740 $ - $ 4,527,740 Acquisition costs Shares issued (note 5) - 810,000 810,000 Currency translation adjustments (469,164 ) 90,609 (378,555 ) Balance, August 31, 2017 $ 4,058,576 $ 900,609 $ 4,959,185 The following table presents costs incurred for exploration and evaluation activities for the three August 31, 2017: North Mother Lode Total (note 4a)) (note 4b)) Exploration costs: Assay $ 43,842 $ - $ 43,842 Drilling (3,323 ) 66 (3,257 ) Equipment rental 14,426 11,628 26,054 Field costs 14,807 59,542 74,349 Geological/ Geophysical 26,767 49,075 75,842 Land maintenance & tenure 194,707 33,839 228,546 Permits 6,240 2,999 9,239 Studies 219,755 39,500 259,255 Travel 8,883 5,586 14,469 Total expenditures for the period $ 526,104 $ 202,235 $ 728,339 The following table presents costs incurred for exploration and evaluation activities for the three August 31, 2016: North Total (note 4a)) Exploration costs: Assay $ 102,964 $ 102,964 Drilling 212,022 212,022 Equipment rental 8,588 8,588 Field costs 39,974 39,974 Geological/ Geophysical 56,675 56,675 Land maintenance & tenure 204,645 204,645 Permits 2,565 2,565 Studies 14,036 14,036 Travel 12,037 12,037 Total expenditures for the period $ 653,506 $ 653,506 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 12 ten not 10,800 first three 10,800 16,200 October 27, 2016). 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 10 4,000 3,500 May 8, 2007, 2008 2009 4,500 May 8, 2010 May 8, 2017). 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 10 2,000 2,000 May 8, 2007, 2008 2009 3,000 May 8, 2010 May 8, 2017). 3% may 850,000 1% 2,550,000 May 29, 2014, 2,400 2,400 May 29, 2015, 2016 2017 May 29, 2017), 3,600 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 12 10 20,500 20,000 May 16, 2017). 4% may 1,000,000 1% 4,000,000 ( 5 Pursuant to a mining lease made and entered into as of May 22, 2006 two three 10 8,000 4,800 May 22, 2007, 2008 2009 7,200 May 22, 2010 May 22, 2017). 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 10 2,000 2,000 June 16, 2007, 2008 2009 3,000 June 16, 2010 June 16, 2017). 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 o Terms five December 1, 2007, five three 100,000 o 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). o 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). o Work Commitments 100,000 first three 200,000 4 6 300,000 7 10 may not o Retained Royalty 2% 400 3% 401 500 4% 500 ( 2 Pursuant to a mining lease and option to purchase made effective March 1, 2011 2 10 10 not 20,000 25,000 March 1, 2012 ( 2013 2014 30,000 March 1, 2015 March 1, 2017), 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. 3 7 5,000 5,000 March 2017). 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 5 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 site reclamation 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 $315,885 252,000 May 31, 2017 - $340,176 252,000 not

Note 5 - Share Capital

Note 5 - Share Capital	3 Months Ended
	Aug. 31, 2017
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 August 31, 2017: a) On June 9, 2017, 1,000,000 4b $810,000. $7,703 b) On July 7, 2017, 6,200,000 $0.75 $4,650,000. $14,788 c) An aggregate of 210,000 210,000 $140,700. 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 5 5 may 2010 A summary of the status of the stock option plan as of August 31, 2017, May 31, 2017, Three months ended Year ended Number of Weighted Number of Weighted Balance, beginning of the period 8,846,900 $ 0.87 7,981,000 $ 0.85 Granted 1,840,000 0.77 1,135,000 1.02 Exercised (210,000 ) (0.67 ) (200,000 ) (0.50 ) Forfeited (500,000 ) (0.92 ) (69,100 ) (0.93 ) Balance, end of the period 9,976,900 $ 0.85 8,846,900 $ 0.87 The weighted average remaining contractual life of options outstanding at August 31, 2017 2.34 May 31, 2017 – 1.85 Stock options outstanding are as follows: August 31, 2017 May 31, 2017 Expiry Date Exercise Number Exercisable Exercise Number of Exercisable November 17, 2016* $ - - - $ 0.67 210,000 210,000 May 1, 2017* $ - - - $ 0.73 50,000 50,000 May 29, 2017* $ - - - $ 0.92 300,000 300,000 September 19, 2017* $ 0.96 2,016,900 2,016,900 $ 0.96 2,016,900 2,016,900 October 29, 2017 $ - - - $ 0.96 100,000 100,000 August 16, 2018 $ 0.76 2,120,000 2,120,000 $ 0.76 2,120,000 2,120,000 September 8, 2019 $ 1.40 1,265,000 1,265,000 $ 1.40 1,265,000 1,265,000 September 9, 2020 $ 0.46 640,000 426,240 $ 0.46 640,000 426,240 November 13, 2020 $ 0.49 1,010,000 672,660 $ 0.49 1,010,000 672,660 June 22, 2018 $ - - - $ 1.02 50,000 33,300 September 15, 2021 $ 0.91 1,085,000 361,305 $ 0.91 1,085,000 361,305 July 31, 2022 $ 0.77 1,840,000 - $ - - - 9,976,900 6,862,105 8,846,900 7,555,405 *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 10 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 $951,067 2016 $21,060 For the three months ended August 31, 2017 2016 Risk-free interest rate 1.65 % 0.60 % Expected life of options (in years) 5 2 Annualized volatility 79.14 % 83.45 % Dividend yield 0 % 0 % Exercise price $ 0.77 $ 1.02 Fair value per share $ 0.52 $ 0.42 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 three months ended August 31, 2017 2016 Consulting fees $ 69,957 $ 98,516 Exploration expenditures – Geological/geophysical 12,260 4,635 Investor relations 21,738 20,534 Professional fees 1,884 1,908 Wages and benefits 52,799 50,645 $ 158,638 $ 176,238

Note 6 - Related Party Transact

Note 6 - Related Party Transactions	3 Months Ended
	Aug. 31, 2017
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 three months ended August 31, 2017 2016 Consulting fees to CFO $ 20,000 $ 20,000 Wages and benefits to CEO and COO 146,890 145,973 Directors fees (included in consulting fees) 36,750 33,750 Fees to former Vice President of Corporate Communications (included in investor relations) - 37,500 Stock-based compensation to related parties 123,150 151,439 $ 326,790 $ 388,662 As at August 31, 2017, $3,110 May 31, 2017 – $18,271 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	3 Months Ended
	Aug. 31, 2017
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	7. GEOGRAPHIC SEGMENTED INFORMATION The Company operates in one two Canada United States Total August 31, 2017 Capitalized acquisition costs $ - $ 4,959,185 $ 4,959,185 Property and equipment $ 7,739 $ 54,621 $ 62,360 May 31, 2017 Capitalized acquisition costs $ - $ 4,527,740 $ 4,527,740 Property and equipment $ 8,367 $ 61,162 $ 69,529 For the period ended August 31, 2017 2016 Net loss for the period – Canada $ (633,776 ) $ (491,590 ) Net loss for the period – United States (992,389 ) (1,014,347 ) Net loss for the period $ (1,626,165 ) $ (1,505,937 )

Note 8 - Subsidiaries

Note 8 - Subsidiaries	3 Months Ended
	Aug. 31, 2017
Notes to Financial Statements
Subsidiaries [Text Block]	8. SUBSIDIARIES Significant subsidiaries for the three August 31, 2017 2016 Country of Principal Activity 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 % N/A

Note 9 - Supplemental Cash Flow

Note 9 - Supplemental Cash Flow Information	3 Months Ended
	Aug. 31, 2017
Notes to Financial Statements
Cash Flow, Supplemental Disclosures [Text Block]	9. SUPPLEMENTAL CASH FLOW INFORMATION For the three months ended August 31, 2017 2016 Supplemental cash flow information Interest paid $ - $ - Income taxes paid (received) $ - $ - Non-cash financing and investing transactions Shares issued to acquire mineral properties $ 810,000 $ - Reclassification of contributed surplus on exercise of stock options $ 103,028 $ -

Significant Accounting Policies

Significant Accounting Policies (Policies)	3 Months Ended
	Aug. 31, 2017
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of presentation These unaudited condensed consolidated interim 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, 2017 10 August 31, 2017 three three August 31, 2017 not may May 31, 2018. 2017 not The preparation of 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 the 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 unaudited 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. 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 August 31, 2017, 9,976,900 2016 7,831,000 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 May 2014, No. 2014 09, 2014 09 2014 09, December 15, 2017. not In July 2015, No. 2015 11, 2015 11 first December 15, 2016. not In March 2016, No. 2016 02, No. 2016 02 No. 2016 02 not 12 not December 15, 2018. not In March 2016, No. 2016 04, No. 2016 04 December 15, 2017. not In March 2016, No. 2016 06, No. 2016 06 December 15, 2016. not In June 2016, No. 2016 13, No. 2016 13 not first December 15, 2019. December 15, 2018, not In August 2016, No. 2016 15, No. 2016 15 zero one December 15, 2017. not In October 2016, No. 2016 16, 2016 16 December 15, 2017. In November 2016, No. 2016 18, 2016 18 one December 15, 2017.

Note 3 - Property and Equipme16

Note 3 - Property and Equipment (Tables)	3 Months Ended
	Aug. 31, 2017
Notes Tables
Property, Plant and Equipment [Table Text Block]	Computer Vehicles Tent Total Cost Balance, May 31, 2017 $ 78,341 $ 92,094 $ 67,500 $ 237,935 Additions 1,424 - - 1,424 Currency translation adjustments (4,327 ) (6,576 ) (4,820 ) (15,723 ) Balance, August 31, 2017 $ 75,438 $ 85,518 $ 62,680 $ 223,636 Depreciation Balance, May 31, 2017 $ 53,544 $ 78,466 $ 36,396 $ 168,406 Depreciation for the period 1,857 974 1,483 4,314 Currency translation adjustments (3,178 ) (5,629 ) (2,637 ) (11,444 ) Balance, August 31, 2017 $ 52,223 $ 73,811 $ 35,242 $ 161,276 Carrying amounts Balance, May 31, 2017 $ 24,797 $ 13,628 $ 31,104 $ 69,529 Balance, August 31, 2017 $ 23,215 $ 11,707 $ 27,438 $ 62,360

Note 4 - Mineral Properties (Ta

Note 4 - Mineral Properties (Tables)	3 Months Ended
	Aug. 31, 2017
Notes Tables
Capitalized Costs Relating to Acquisition Activities Disclosure [Table Text Block]	North Mother Lode Total (note 4a)) (note 4b)) Balance, May 31, 2017 $ 4,527,740 $ - $ 4,527,740 Acquisition costs Shares issued (note 5) - 810,000 810,000 Currency translation adjustments (469,164 ) 90,609 (378,555 ) Balance, August 31, 2017 $ 4,058,576 $ 900,609 $ 4,959,185
Cost Incurred in Acquisition Exploration and Evaluation Activities Disclosure [Table Text Block]	North Mother Lode Total (note 4a)) (note 4b)) Exploration costs: Assay $ 43,842 $ - $ 43,842 Drilling (3,323 ) 66 (3,257 ) Equipment rental 14,426 11,628 26,054 Field costs 14,807 59,542 74,349 Geological/ Geophysical 26,767 49,075 75,842 Land maintenance & tenure 194,707 33,839 228,546 Permits 6,240 2,999 9,239 Studies 219,755 39,500 259,255 Travel 8,883 5,586 14,469 Total expenditures for the period $ 526,104 $ 202,235 $ 728,339 North Total (note 4a)) Exploration costs: Assay $ 102,964 $ 102,964 Drilling 212,022 212,022 Equipment rental 8,588 8,588 Field costs 39,974 39,974 Geological/ Geophysical 56,675 56,675 Land maintenance & tenure 204,645 204,645 Permits 2,565 2,565 Studies 14,036 14,036 Travel 12,037 12,037 Total expenditures for the period $ 653,506 $ 653,506

Note 5 - Share Capital (Tables)

Note 5 - Share Capital (Tables)	3 Months Ended
	Aug. 31, 2017
Notes Tables
Share-based Compensation, Stock Options, Activity [Table Text Block]	Three months ended Year ended Number of Weighted Number of Weighted Balance, beginning of the period 8,846,900 $ 0.87 7,981,000 $ 0.85 Granted 1,840,000 0.77 1,135,000 1.02 Exercised (210,000 ) (0.67 ) (200,000 ) (0.50 ) Forfeited (500,000 ) (0.92 ) (69,100 ) (0.93 ) Balance, end of the period 9,976,900 $ 0.85 8,846,900 $ 0.87
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]	August 31, 2017 May 31, 2017 Expiry Date Exercise Number Exercisable Exercise Number of Exercisable November 17, 2016* $ - - - $ 0.67 210,000 210,000 May 1, 2017* $ - - - $ 0.73 50,000 50,000 May 29, 2017* $ - - - $ 0.92 300,000 300,000 September 19, 2017* $ 0.96 2,016,900 2,016,900 $ 0.96 2,016,900 2,016,900 October 29, 2017 $ - - - $ 0.96 100,000 100,000 August 16, 2018 $ 0.76 2,120,000 2,120,000 $ 0.76 2,120,000 2,120,000 September 8, 2019 $ 1.40 1,265,000 1,265,000 $ 1.40 1,265,000 1,265,000 September 9, 2020 $ 0.46 640,000 426,240 $ 0.46 640,000 426,240 November 13, 2020 $ 0.49 1,010,000 672,660 $ 0.49 1,010,000 672,660 June 22, 2018 $ - - - $ 1.02 50,000 33,300 September 15, 2021 $ 0.91 1,085,000 361,305 $ 0.91 1,085,000 361,305 July 31, 2022 $ 0.77 1,840,000 - $ - - - 9,976,900 6,862,105 8,846,900 7,555,405
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	For the three months ended August 31, 2017 2016 Risk-free interest rate 1.65 % 0.60 % Expected life of options (in years) 5 2 Annualized volatility 79.14 % 83.45 % Dividend yield 0 % 0 % Exercise price $ 0.77 $ 1.02 Fair value per share $ 0.52 $ 0.42
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	For the three months ended August 31, 2017 2016 Consulting fees $ 69,957 $ 98,516 Exploration expenditures – Geological/geophysical 12,260 4,635 Investor relations 21,738 20,534 Professional fees 1,884 1,908 Wages and benefits 52,799 50,645 $ 158,638 $ 176,238

Note 6 - Related Party Transa19

Note 6 - Related Party Transactions (Tables)	3 Months Ended
	Aug. 31, 2017
Notes Tables
Schedule of Related Party Transactions [Table Text Block]	For the three months ended August 31, 2017 2016 Consulting fees to CFO $ 20,000 $ 20,000 Wages and benefits to CEO and COO 146,890 145,973 Directors fees (included in consulting fees) 36,750 33,750 Fees to former Vice President of Corporate Communications (included in investor relations) - 37,500 Stock-based compensation to related parties 123,150 151,439 $ 326,790 $ 388,662

Note 7 - Geographic Segmented20

Note 7 - Geographic Segmented Information (Tables)	3 Months Ended
	Aug. 31, 2017
Notes Tables
Long-lived Assets by Geographic Areas [Table Text Block]	Canada United States Total August 31, 2017 Capitalized acquisition costs $ - $ 4,959,185 $ 4,959,185 Property and equipment $ 7,739 $ 54,621 $ 62,360 May 31, 2017 Capitalized acquisition costs $ - $ 4,527,740 $ 4,527,740 Property and equipment $ 8,367 $ 61,162 $ 69,529
Net Income (Loss) by Geographic Areas [Table Text Block]	For the period ended August 31, 2017 2016 Net loss for the period – Canada $ (633,776 ) $ (491,590 ) Net loss for the period – United States (992,389 ) (1,014,347 ) Net loss for the period $ (1,626,165 ) $ (1,505,937 )

Note 8 - Subsidiaries (Tables)

Note 8 - Subsidiaries (Tables)	3 Months Ended
	Aug. 31, 2017
Notes Tables
Schedule of Significant Subsidiaries [Table Text Block]	Country of Principal Activity 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 % N/A

Note 9 - Supplemental Cash Fl22

Note 9 - Supplemental Cash Flow Information (Tables)	3 Months Ended
	Aug. 31, 2017
Notes Tables
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	For the three months ended August 31, 2017 2016 Supplemental cash flow information Interest paid $ - $ - Income taxes paid (received) $ - $ - Non-cash financing and investing transactions Shares issued to acquire mineral properties $ 810,000 $ - Reclassification of contributed surplus on exercise of stock options $ 103,028 $ -

Note 1 - Nature and Continuan23

Note 1 - Nature and Continuance of Operations (Details Textual) - CAD	Jul. 07, 2017	Aug. 31, 2017	May 31, 2017
Working Capital		CAD 4,534,732	CAD 1,270,168
Proceeds from Issuance of Private Placement	CAD 4,650,000
Private Placement [Member]
Stock Issued During Period, Shares, New Issues	6,200,000
Sale of Stock, Price Per Share	CAD 0.75
Proceeds from Issuance of Private Placement	CAD 4,650,000

Note 2 - Significant Accounti24

Note 2 - Significant Accounting Policies (Details Textual) - shares	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	9,976,900	7,831,000

Note 3 - Property and Equipme25

Note 3 - Property and Equipment - Property and Equipment (Details) - CAD	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	May 31, 2017
Cost, Balance	CAD 237,935
Additions	1,424
Currency translation adjustments	(15,723)
Cost, Balance	223,636
Accumulated depreciation, Balance	161,276		CAD 168,406	CAD 161,276
Depreciation	4,314	CAD 5,322
Currency translation adjustments	(11,444)
Accumulated depreciation, Balance	161,276
Carrying amounts			62,360	69,529
Computer Equipment [Member]
Cost, Balance	78,341
Additions	1,424
Currency translation adjustments	(4,327)
Cost, Balance	75,438
Accumulated depreciation, Balance	52,223		53,544	52,223
Depreciation	1,857
Currency translation adjustments	(3,178)
Accumulated depreciation, Balance	52,223
Carrying amounts			23,215	24,797
Vehicles [Member]
Cost, Balance	92,094
Additions	0
Currency translation adjustments	(6,576)
Cost, Balance	85,518
Accumulated depreciation, Balance	73,811		78,466	73,811
Depreciation	974
Currency translation adjustments	(5,629)
Accumulated depreciation, Balance	73,811
Carrying amounts			11,707	13,628
Tent [Member]
Cost, Balance	67,500
Additions	0
Currency translation adjustments	(4,820)
Cost, Balance	62,680
Accumulated depreciation, Balance	35,242		36,396	35,242
Depreciation	1,483
Currency translation adjustments	(2,637)
Accumulated depreciation, Balance	CAD 35,242
Carrying amounts			CAD 27,438	CAD 31,104

Note 4 - Mineral Properties (De

Note 4 - Mineral Properties (Details Textual) $ / shares in Units, T in Millions	Jun. 09, 2017$ / shares$ / itemshares	Nov. 18, 2016shares	Nov. 17, 2016USD ($)	Nov. 10, 2016CADshares	Nov. 23, 2015USD ($)	Nov. 18, 2015shares	Nov. 05, 2015CADshares	Mar. 30, 2015USD ($)	Nov. 17, 2014USD ($)	Nov. 07, 2014CADshares	Nov. 25, 2013CADshares	Nov. 13, 2013USD ($)	Mar. 28, 2013USD ($)T$ / T	Oct. 31, 2012USD ($)	Oct. 25, 2012CADshares	Mar. 01, 2011USD ($)	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, 2013CADa	Dec. 31, 2013USD ($)a	Aug. 31, 2017CAD	May 31, 2013CAD	May 31, 2013USD ($)	Dec. 31, 2011shares	Dec. 31, 2014shares	Mar. 31, 2015shares	Aug. 31, 2017USD ($)	May 31, 2017CAD	May 31, 2017USD ($)	Mar. 31, 2017USD ($)	Mar. 01, 2015USD ($)	May 29, 2014USD ($)	Mar. 01, 2014USD ($)	May 31, 2013USD ($)	Mar. 01, 2013USD ($)	Mar. 01, 2012USD ($)
Asset Retirement Obligations, Noncurrent																											CAD 315,885						$ 252,000	CAD 340,176	$ 252,000
Stock Issued During Period, Shares, Acquisitions | shares	1,000,000
Chisna [Member]
Unpatented Mineral Claims																											100.00%
North Bullfrog [Member]
Land Subject to Ground Leases | a																									1,600	1,600
North Bullfrog [Member] | Nevada Corporation [Member]
Capital Leases, Future Minimum Payments Due in Four Years																																						$ 2,400
Capital Leases, Future Minimum Payments Due in Five Years																								$ 3,000														3,600
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 Two Years																								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
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
North Bullfrog [Member] | Redstar Gold Corp. [Member]
Capital Leases, Future Minimum Payments Due in Four Years																					$ 2,000	$ 4,800		3,500
Capital Leases, Future Minimum Payments Due in Five Years																					$ 3,000	$ 7,200		$ 4,500
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 Two Years																					2,000	4,800		3,500
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				$ 20,000	$ 4,500
Purchase Obligation																			$ 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
North Bullfrog [Member] | Corvus Gold Nevada Inc. [Member]
Cash Payment Along with Shares Issued as Lease Payment | CAD				CAD 53,447			CAD 19,237			CAD 21,200	CAD 35,871				CAD 126,924
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
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													$ 240,000															CAD 248,832												$ 240,000
Acquisition Costs, Period Cost																												406,240	$ 400,000
Payments to Acquire Mineral Rights | CAD																												CAD 157,408
Number of Patented Sunflower Claims								3
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
Mining Lease Agreement Term of Contract, Extension Term																10 years
Advance Royalties Payment								$ 5,000								$ 20,000				$ 100,000																$ 5,000	$ 30,000		$ 25,000		$ 25,000	$ 25,000
Lease Payment for Patented Mining Claims Lease			$ 10,000		$ 10,000				$ 10,000			$ 10,000		$ 10,000						5,000
Lease Payments Common Shares Issued | shares		25,000				25,000																								10,000	25,000	85,000
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
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%
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 Agreement, Option to Purchase Property, Purcahse Price								$ 300,000
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 Upon Extend Lease | shares																	50,000
Lease Payments Additional Common Shares Issued Upon Extend Lease | shares																	50,000
Lease Payments Common Shares Issued | shares				50,000			50,000			50,000	50,000				50,000					25,000
Land and Water Rights [Member]
Payments to Acquire Mineral Rights																									CAD 1,100,118	$ 1,034,626
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, Maximum Gold Price | $ / item	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 | $ / item	1,400
Net Smelter Return, Royalty Percentage of Production Based on Specified Maximum Gold Price	1.00%

Note 4 - Mineral Properties - A

Note 4 - Mineral Properties - Activity Related to Capitalized Acquisition Costs (Details) - CAD		Jun. 09, 2017	Aug. 31, 2017
Balance			CAD 4,527,740
Share issued for capitalized acquisition costs		CAD 810,000	810,000	[1]
Currency translation adjustments			(378,555)
Balance			4,959,185
North Bullfrog [Member]
Balance			4,527,740
Share issued for capitalized acquisition costs	[1]
Currency translation adjustments			(469,164)
Balance			4,058,576
Mother Lode Property [Member]
Balance
Share issued for capitalized acquisition costs	[1]		810,000
Currency translation adjustments			90,609
Balance			CAD 900,609
[1]	Pursuant to a purchase agreement made effective June 9, 2017 between Corvus Nevada and Goldcorp USA, Inc., Corvus Nevada has acquired 100% of the Mother Lode Property. In addition, Corvus Nevada staked two additional adjacent claim blocks to Mother Lode. In connection with the acquisition, the Company issued 1,000,000 Common Shares at a price of $0.81 per share to Goldcorp USA, Inc. (note 5). The Mother Lode Property is subject to an NSR in favour of Goldcorp USA, Inc. 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
	Aug. 31, 2017	Aug. 31, 2016
Costs Incurred for Exploration and Evaluation Activities, Gross	CAD 728,339	CAD 653,506
Assay [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	43,842	102,964
Drilling [Member]
Cost recovered for Exploration and Evaluation Activities, Gross	(3,257)
Costs Incurred for Exploration and Evaluation Activities, Gross		212,022
Equipment rental [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	26,054	8,588
Field Costs [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	74,349	39,974
Geological Geophysical [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	75,842	56,675
Land Maintenance and Tenure [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	228,546	204,645
Permits [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	9,239	2,565
Studies [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	259,255	14,036
Travel [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	14,469	12,037
North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	526,104	653,506
North Bullfrog [Member] | Assay [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	43,842	102,964
North Bullfrog [Member] | Drilling [Member]
Cost recovered for Exploration and Evaluation Activities, Gross	(3,323)
Costs Incurred for Exploration and Evaluation Activities, Gross		212,022
North Bullfrog [Member] | Equipment rental [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	14,426	8,588
North Bullfrog [Member] | Field Costs [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	14,807	39,974
North Bullfrog [Member] | Geological Geophysical [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	26,767	56,675
North Bullfrog [Member] | Land Maintenance and Tenure [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	194,707	204,645
North Bullfrog [Member] | Permits [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	6,240	2,565
North Bullfrog [Member] | Studies [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	219,755	14,036
North Bullfrog [Member] | Travel [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	8,883	CAD 12,037
Mother Lode Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	202,235
Mother Lode Property [Member] | Assay [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross
Mother Lode Property [Member] | Drilling [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	66
Mother Lode Property [Member] | Equipment rental [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	11,628
Mother Lode Property [Member] | Field Costs [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	59,542
Mother Lode Property [Member] | Geological Geophysical [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	49,075
Mother Lode Property [Member] | Land Maintenance and Tenure [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	33,839
Mother Lode Property [Member] | Permits [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	2,999
Mother Lode Property [Member] | Studies [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	39,500
Mother Lode Property [Member] | Travel [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	CAD 5,586

Note 5 - Share Capital (Details

Note 5 - Share Capital (Details Textual) - CAD	Jul. 07, 2017	Jun. 09, 2017	Aug. 31, 2017		Aug. 31, 2016	May 31, 2017
Proceeds from Issuance of Private Placement	CAD 4,650,000
Stock Issued During Period, Shares, Acquisitions		1,000,000
Stock Issued During Period, Value, Acquisitions		CAD 810,000	CAD 810,000	[1]
Payments of Stock Issuance Costs		CAD 7,703	CAD 22,491		CAD 11,515
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period			210,000
Proceeds from Stock Options Exercised			CAD 140,700
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term			2 years 124 days			1 year 310 days
The 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period			210,000			200,000
Employee Stock Option [Member]
Stock Granted, Value, Share-based Compensation, Gross			CAD 951,067		CAD 21,060
Employee Stock Option [Member] | The 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum			10.00%
Employee Stock Option [Member] | The 2010 Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period			10 years
Employee Stock Option, Expiring on November 17, 2016 [Member]
Options Exercisable Period, After Restrictions Lifted			10 days
Private Placement [Member]
Stock Issued During Period, Shares, New Issues	6,200,000
Sale of Stock, Price Per Share	CAD 0.75
Proceeds from Issuance of Private Placement	CAD 4,650,000
Payments of Stock Issuance Costs	CAD 14,788
[1]	Pursuant to a purchase agreement made effective June 9, 2017 between Corvus Nevada and Goldcorp USA, Inc., Corvus Nevada has acquired 100% of the Mother Lode Property. In addition, Corvus Nevada staked two additional adjacent claim blocks to Mother Lode. In connection with the acquisition, the Company issued 1,000,000 Common Shares at a price of $0.81 per share to Goldcorp USA, Inc. (note 5). The Mother Lode Property is subject to an NSR in favour of Goldcorp USA, Inc. 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 - Summar

Note 5 - Share Capital - Summary of the Status of the Stock Option Plan (Details) - CAD / shares	3 Months Ended	12 Months Ended
	Aug. 31, 2017	May 31, 2017
Number of Options, Balance (in shares)	8,846,900
Weighted Average Exercise Price, Balance, beginning of the year (in CAD per share)	CAD 0
Number of Options, Exercised (in shares)	(210,000)
Number of Options, Balance (in shares)	9,976,900	8,846,900
Weighted Average Exercise Price, Balanc (in CAD per share)		CAD 0
The 2010 Plan [Member]
Number of Options, Balance (in shares)	8,846,900	7,981,000
Weighted Average Exercise Price, Balance, beginning of the year (in CAD per share)	CAD 0.87	CAD 0.85
Number of Options, Granted (in shares)	1,840,000	1,135,000
Weighted Average Exercise Price, Granted (in CAD per share)	CAD 0.77	CAD 1.02
Number of Options, Exercised (in shares)	(210,000)	(200,000)
Weighted Average Exercise Price, Exercised (in CAD per share)	CAD (0.67)	CAD (0.50)
Number of Options, Forfeited (in shares)	(500,000)	(69,100)
Weighted Average Exercise Price, Forfeited (in CAD per share)	CAD (0.92)	CAD (0.93)
Number of Options, Balance (in shares)	9,976,900	8,846,900
Weighted Average Exercise Price, Balanc (in CAD per share)	CAD 0.85	CAD 0.87

Note 5 - Share Capital - Stock

Note 5 - Share Capital - Stock Options Outstanding (Details) - CAD / shares		Aug. 31, 2017	May 31, 2017
Exercisable at Year- End (in shares)		6,862,105	7,555,405
Exercise Price (in CAD per share)			CAD 0
Number of Options (in shares)		9,976,900	8,846,900
Employee Stock Option, Expiring on November 17, 2016 [Member]
Exercisable at Year- End (in shares)		0	210,000
Exercise Price (in CAD per share)	[1]	CAD 0	CAD 0.67
Number of Options (in shares)	[1]	0	210,000
Employee Stock Option, Expiring on May 1, 2017 [Member]
Exercisable at Year- End (in shares)	[1]		50,000
Exercise Price (in CAD per share)	[1]		CAD 0.73
Number of Options (in shares)	[1]		50,000
Employee Stock Option, Expiring on May 29, 2017 [Member]
Exercisable at Year- End (in shares)		0	300,000
Exercise Price (in CAD per share)	[1]		CAD 0.92
Number of Options (in shares)		0	300,000
Employee Stock Option, Expiring on September 19, 2017 [Member]
Exercisable at Year- End (in shares)	[1]	2,016,900	2,016,900
Exercise Price (in CAD per share)	[1]	CAD 0.96	CAD 0.96
Number of Options (in shares)	[1]	2,016,900	2,016,900
Employee Stock Option, Expiring on October 29, 2017 [Member]
Exercisable at Year- End (in shares)			100,000
Exercise Price (in CAD per share)			CAD 0.96
Number of Options (in shares)			100,000
Employee Stock Option, Expiring on August 16, 2018 [Member]
Exercisable at Year- End (in shares)		2,120,000	2,120,000
Exercise Price (in CAD per share)		CAD 0.76	CAD 0.76
Number of Options (in shares)		2,120,000	2,120,000
Employee Stock Option, Expiring On September 8, 2019 [Member]
Exercisable at Year- End (in shares)		1,265,000	1,265,000
Exercise Price (in CAD per share)		CAD 1.40	CAD 1.40
Number of Options (in shares)		1,265,000	1,265,000
Employee Stock Option, Expiring on September 9, 2020 [Member]
Exercisable at Year- End (in shares)		426,240	426,240
Exercise Price (in CAD per share)		CAD 0.46	CAD 0.46
Number of Options (in shares)		640,000	640,000
Employee Stock Option, Expiring on November 13, 2020 [Member]
Exercisable at Year- End (in shares)		672,660	672,660
Exercise Price (in CAD per share)		CAD 0.49	CAD 0.49
Number of Options (in shares)		1,010,000	1,010,000
Employee Stock Option, Expiring On June 22, 2018 [Member]
Exercisable at Year- End (in shares)			33,300
Exercise Price (in CAD per share)			CAD 1.02
Number of Options (in shares)			50,000
Employee Stock Option, Expiring on September 15, 2021 [Member]
Exercisable at Year- End (in shares)		361,305	361,305
Exercise Price (in CAD per share)		CAD 0.91	CAD 0.91
Number of Options (in shares)		1,085,000	1,085,000
Employee Stock Option, Expiring on July 31, 2022 [Member]
Exercisable at Year- End (in shares)		0	0
Exercise Price (in CAD per share)		CAD 0.77	CAD 0
Number of Options (in shares)		1,840,000	0
[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 10 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] - CAD / shares	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Risk-free interest rate	1.65%	0.60%
Expected life of options (in years) (Year)	5 years	2 years
Annualized volatility	79.14%	83.45%
Dividend yield	0.00%	0.00%
Exercise price (in CAD per share)	CAD 0.77	CAD 1.02
Fair value per share (in CAD per share)	CAD 0.52	CAD 0.42

Note 5 - Share Capital - Alloca

Note 5 - Share Capital - Allocation of Stock-based Compensation Expenses (Details) - CAD	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Share-based Compensation	CAD 158,638	CAD 176,238
Consulting fees [Member]
Share-based Compensation	69,957	98,516
Exploration expenditures - Geological/geophysical [Member]
Share-based Compensation	12,260	4,635
Investor relations [Member]
Share-based Compensation	21,738	20,534
Professional Fees [Member]
Share-based Compensation	1,884	1,908
Wages and Benefits [Member]
Share-based Compensation	CAD 52,799	CAD 50,645

Note 6 - Related Party Transa34

Note 6 - Related Party Transactions (Details Textual) - CAD	Aug. 31, 2017	May 31, 2017
Accounts Payable and Accrued Liabilities	CAD 3,110	CAD 18,271

Note 6 - Related Party Transa35

Note 6 - Related Party Transactions - Transactions With Related Parties (Details) - CAD	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Consulting fees to CFO	CAD 135,707	CAD 161,266
Fees to former Vice President of Corporate Communications (included in investor relations)		37,500
Management compensation	326,790	388,662
Related Party Transaction [Member]
Stock-based compensation to related parties	123,150	151,439
Related Party Transaction [Member] | Chief Financial Officer [Member]
Consulting fees to CFO	20,000	20,000
Related Party Transaction [Member] | Chief Executive Officer [Member]
Wages and benefits	146,890	145,973
Related Party Transaction [Member] | Director [Member]
Directors fees (included in consulting fees)	CAD 36,750	CAD 33,750

Note 7 - Geographic Segmented36

Note 7 - Geographic Segmented Information (Details Textual)	3 Months Ended
	Aug. 31, 2017
Number of Operating Segments	1
Number of Reportable Segments	2

Note 7 - Geographic Segmented37

Note 7 - Geographic Segmented Information - Long-lived Assets, by Geographical Areas (Details) - CAD	Aug. 31, 2017	May 31, 2017
Capitalized acquisition costs	CAD 4,959,185	CAD 4,527,740
Property and equipment	62,360	69,529
Operating Segments [Member]
Capitalized acquisition costs	4,959,185	4,527,740
Property and equipment	62,360	69,529
CANADA | Operating Segments [Member]
Capitalized acquisition costs	0	0
Property and equipment	7,739	8,367
UNITED STATES | Operating Segments [Member]
Capitalized acquisition costs	4,959,185	4,527,740
Property and equipment	CAD 54,621	CAD 61,162

Note 7 - Geographic Segmented38

Note 7 - Geographic Segmented Information - Net Income (Loss) by Geographic Areas (Details) - CAD	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Net loss for the period	CAD (1,626,165)	CAD (1,505,937)
CANADA
Net loss for the period	(633,776)	(491,590)
UNITED STATES
Net loss for the period	CAD (992,389)	CAD (1,014,347)

Note 8 - Subsidiaries - Signifi

Note 8 - Subsidiaries - Significant Subsidiaries (Details)	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Corvus Gold (USA) Inc. [Member]
Effective Interest	100.00%	100.00%
Country of Incorporation	USA
Principal Activity	Holding company
Raven Gold Alaska Inc. [Member]
Effective Interest	100.00%	100.00%
Country of Incorporation	USA
Principal Activity	Exploration company
Corvus Gold Nevada Inc. [Member]
Effective Interest	100.00%	100.00%
Country of Incorporation	USA
Principal Activity	Exploration company
SoN Land and Water LLC [Member]
Effective Interest	100.00%	100.00%
Country of Incorporation	USA
Principal Activity	Exploration company
Mother Lode Mining Company LLC [Member]
Effective Interest	100.00%
Country of Incorporation	USA
Principal Activity	Exploration company

Note 9 - Supplemental Cash Fl40

Note 9 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - CAD	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Interest paid
Income taxes paid (received)
Shares issued to acquire mineral properties	810,000
Reclassification of contributed surplus on exercise of stock options	CAD 103,028