Alexco Resource (AXU) 40-F 11 Mar 20 2019 FY Annual report (Canada) Financial data

Document And Entity Information

Document And Entity Information	12 Months Ended
	Dec. 31, 2019shares
Document and Entity Information [Abstract]
Document Type	40-F
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Registrant Name	ALEXCO RESOURCE CORP
Entity Central Index Key	0001364128
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Common Stock, Shares Outstanding	119,994,664
Entity Emerging Growth Company	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 6,841	$ 8,576
Accounts and other receivables	6,534	6,811
Investments	405	351
Inventories	1,285	818
Prepaid expenses and other	652	878
Current assets	15,717	17,434
Non-Current Assets
Restricted cash and deposits	2,777	2,725
Investments	924	409
Inventories	4,282	4,699
Property, plant and equipment	16,048	15,233
Mineral properties	89,507	82,226
Embedded derivative asset	15,160	9,671
Other assets	938	621
Total Assets	145,353	133,018
Current Liabilities
Accounts payable and accrued liabilities	5,143	7,210
Lease liabilities	406	0
Environmental services contract loss provision	78	36
Deferred revenue	884	109
Flow-through share premium pending renunciation	205	649
Current Liabilities	6,716	8,004
Non-Current Liabilities
Lease liabilities	1,040	0
Decommissioning and rehabilitation provision	6,202	5,286
Deferred income tax liabilities	4,725	3,098
Total Liabilities	18,683	16,388
Shareholders' Equity	126,670	116,630
Total Liabilities and Shareholders' Equity	$ 145,353	$ 133,018

CONSOLIDATED STATEMENTS OF LOSS

CONSOLIDATED STATEMENTS OF LOSS AND COMPREHENSIVE LOSS - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenues
Environmental Services Revenue	$ 29,206	$ 19,880
Cost of Sales
Environmental Services Costs	23,130	13,828
Total Gross Profit	6,076	6,052
General and administrative expenses	17,084	12,170
Mine site care and maintenance	2,062	2,603
Operating expense	19,146	14,773
Operating Loss	(13,070)	(8,721)
Other Income (Expenses)
Other income and expenses	(511)	(772)
Loss on investments	(3)	(572)
Gain on embedded derivative	5,489	3,071
Loss Before Taxes	(8,095)	(6,994)
Income Tax Provision
Deferred	820	1,507
Net Loss	(8,915)	(8,501)
Other Comprehensive Income (Loss)
Gain (loss) on FVTOCI investments, net of tax	547	(798)
Items that may be reclassified subsequently to net loss
Cumulative translation adjustments, net of tax	(113)	213
Other Comprehensive Loss (Income)	434	(585)
Total Comprehensive Loss	$ (8,481)	$ (9,086)
Basic and diluted loss per common share	$ (0.08)	$ (0.08)
Weighted average number of common shares outstanding	114,158,813	105,034,345

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash Flows used in Operating Activities
Net loss	$ (8,915)	$ (8,501)
Items not affecting cash from operations:
Environmental services contract loss provision	44	(90)
Depreciation of fixed assets and right-of-use assets	2,203	1,601
Amortization of intangible assets	47	51
Share-based compensation expense	4,075	2,580
Finance costs, foreign exchange and other	70	269
Derivative asset gain	(5,489)	(3,071)
Unrealized loss on investments	3	573
Deferred income tax provision	820	1,507
Changes in non-cash working capital balances related to operations
(Increase) decrease in accounts and other receivables	277	(4,107)
Increase in inventories	(51)	(26)
Decrease in prepaid expenses and other current assets	438	650
Decrease (increase) in deferred revenue	771	(88)
(Decrease) increase in accounts payable and accrued liabilities	(1,512)	3,162
Cash flows used in operating activities	(7,219)	(5,490)
Cash Flows (used in) from Investing Activities
Expenditures on mineral properties	(6,623)	(17,115)
Purchase or disposal of property, plant and equipment	(1,097)	(486)
Decrease (increase) in restricted cash	(12)	4,383
Acquisition of subsidiary	0	(536)
Investment in joint venture	(367)	0
Purchase of investments	(28)	(407)
Cash flows from (used in) investing activities	(8,127)	(14,161)
Cash Flows from (used in) Financing Activities
Proceeds from issuance of shares	12,135	9,042
Issuance costs	(1,379)	(966)
Repayment of lease liabilities	(599)	0
Proceeds from exercise of warrants	2,687	2,027
Proceeds from exercise of stock options	767	218
Cash flows from (used in) financing activities	13,611	10,321
Decrease in Cash and Cash Equivalents	(1,735)	(9,330)
Cash and Cash Equivalents - Beginning of Year	8,576	17,906
Cash and Cash Equivalents - End of Year	$ 6,841	$ 8,576

CONSOLIDATED STATEMENTS OF SHAR

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - CAD ($) $ in Thousands	Ordinary shares [member]	Warrants [Member]	Share options and RSU [Member]	Contributed surplus [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Dec. 31, 2017	$ 202,389	$ 2,092	$ 6,660	$ 15,743	$ (113,297)	$ (1,131)	$ 112,456
Balance (in shares) at Dec. 31, 2017	101,280,850
Statement of equity [Line Items]
Net loss	$ 0	0	0	0	(8,501)	0	(8,501)
Other comprehensive income (loss)	0	0	0	0	0	(585)	(585)
Share-based compensation expense recognized	0	0	2,947	0	0	0	2,947
Flow-through shares equity offering, net of issuance costs	$ 6,701						6,701
Flow-through shares equity offering, net of issuance costs (in shares)	4,703,000
Credit Facility fee - warrants	$ 0	938	0	0	0	0	938
Acquistion of Contango Strategies	$ 416						416
Acquistion of Contango Strategies (in shares)	237,999,000
Exercise of share options	$ 2,563	(536)					2,027
Exercise of share options (in shares)	1,167,351
Exercise of warrants	$ 14						14
Exercise of warrants (in shares)	10,000
Shares issued on Option Agreement	$ 323		(106)				217
Shares issued on Option Agreement (in shares)	281,666
Share options forfeited or expired			(3,163)	3,163
Release of RSU settlement shares	$ 497		(497)
Release of RSU settlement shares (in shares)	318,036
Balance at Dec. 31, 2018	$ 212,903	2,494	5,841	18,906	(121,798)	(1,716)	116,630
Balance (in shares) at Dec. 31, 2018	107,998,902
Statement of equity [Line Items]
Net loss	$ 0	0	0	0	(8,915)	0	(8,915)
Other comprehensive income (loss)						434	434
Share-based compensation expense recognized			4,470				4,470
Credit Facility fee	$ 211						211
Credit Facility fee (in shares)	171,480
Flow-through shares equity offering, net of issuance costs	$ 10,283	105					10,388
Flow-through shares equity offering, net of issuance costs (in shares)	8,342,200
Exercise of share options	$ 1,149		(384)				765
Exercise of share options (in shares)	852,500
Exercise of warrants	$ 3,726	(1,039)					$ 2,687
Exercise of warrants (in shares)	1,315,266						1,315,266
Share options forfeited or expired			(442)	442
Release of RSU settlement shares	$ 840		(840)
Release of RSU settlement shares (in shares)	470,319
Balance at Dec. 31, 2019	$ 229,112	$ 1,560	$ 8,645	$ 19,348	$ (130,713)	$ (1,282)	$ 126,670
Balance (in shares) at Dec. 31, 2019	119,150,667

Description of Business and Nat

Description of Business and Nature of Operations	12 Months Ended
	Dec. 31, 2019
Description of Business and Nature of Operations
Description of Business and Nature of Operations	1. Description of Business and Nature of Operations Alexco Resource Corp. (“Alexco” or the “Corporation”) was incorporated under the Business Corporations Act (Yukon) on December 3, 2004 and commenced operations on March 15, 2005. Effective December 28, 2007, it was continued under the Business Corporations Act (British Columbia). The Corporation operates two principal businesses: a mining business, comprising mineral exploration and mine development in Yukon Territory; and through Alexco Environmental Group (“AEG”), an environmental services business, providing consulting, remediation solutions and project management services in respect of environmental permitting and compliance and site remediation, primarily in Canada and the United States. Subsequent to year end the Corporation entered into a Share Purchase Agreement for the sale of AEG (refer to Note 31). The Corporation is in the process of exploring and developing its mineral properties. The recoverability of the amounts shown for mineral properties is dependent upon the existence of economically recoverable mineral resources or reserves, successful permitting, the ability of the Corporation to obtain necessary financing to complete exploration and development, and upon future profitable production or proceeds from disposition of each mineral property. The carrying amounts of mineral properties are based on a disposal of part of a mineral property interest, costs incurred to date, adjusted for depletion and impairments and do not necessarily represent present or future values. Alexco is a public company which is listed on the Toronto Stock Exchange and the NYSE American Stock Exchange (under the symbol AXU). The Corporation’s corporate head office is located at Suite 1225, Two Bentall Centre, 555 Burrard Street, Box 216, Vancouver, BC, Canada, V7X 1M9.

Basis of Preparation and Statem

Basis of Preparation and Statement of Compliance	12 Months Ended
	Dec. 31, 2019
Basis of Preparation and Statement of Compliance
Basis of Preparation and Statement of Compliance	2. Basis of Preparation and Statement of Compliance These consolidated financial statements have been prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board ("IFRS"), and were approved for issue by the Board of Directors on March 11, 2020. These consolidated financial statements have been prepared under the historical cost method, except for derivative financial instruments and certain financial assets which have been measured at fair value. All figures are expressed in Canadian dollars unless otherwise indicated.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies	3. Summary of Significant Accounting Policies The significant accounting policies used in the preparation of these financial statements are summarized below. (a) Basis of Consolidation The Corporation’s consolidated financial statements include the accounts of the Corporation and its subsidiaries. Subsidiaries are entities controlled by the Corporation, where control is achieved by the Corporation being exposed to, or having rights to, variable returns from its involvement with the entity and having the ability to affect those returns through its power over the entity. Subsidiaries are fully consolidated from the date on which control is obtained by Alexco, and are de-consolidated from the date that control ceases. The following subsidiaries have been consolidated for all dates presented within these financial statements, and are wholly owned: Alexco Keno Hill Mining Corp., Elsa Reclamation & Development Corporation Ltd. (“ERDC”), Alexco Exploration Canada Corp., Alexco Environmental Group Inc., Alexco Environmental Group Holdings Inc., Alexco Water and Environment Inc. (“AWE”) and Contango Strategies Ltd. All significant inter-company transactions, balances, income and expenses are eliminated on consolidation. (b) Cash and Cash Equivalents Cash and cash equivalents are unrestricted as to use and consist of cash on hand, demand deposits and short term interest-bearing investments with maturities of 90 days or less from the original date of acquisition and which can readily be liquidated to known amounts of cash. Redeemable interest bearing investments with maturities of up to one year are considered cash equivalents if they can readily be liquidated at any point in time to known amounts of cash and they are redeemable thereafter until maturity for invested value plus accrued interest. (c) Inventories Inventories include ore in stockpiles, concentrate and materials and supplies. Ore in stockpiles and concentrate are recorded at the lower of weighted average cost and net realizable value. Cost comprises all mining and processing costs incurred, including labor, consumables, production-related overheads, depreciation of production-related property, plant and equipment and depletion of related mineral properties. Net realizable value is estimated at the selling price in the ordinary course of business less applicable variable selling expenses. Materials and supplies are valued at the lower of cost and replacement cost, costs based on landed cost of purchase, net of a provision for obsolescence where applicable. When inventories have been written down to net realizable value, a new assessment of net realizable value is made in each subsequent period. When circumstances that caused the write-down no longer exist or when there is clear evidence of an increase in net realizable value, the amount of the write down is reversed. (d) Property, Plant and Equipment Property, plant and equipment are stated at historical cost less accumulated depreciation and impairment write-downs. The cost capitalized is determined by the fair value of consideration given to acquire the asset at the time of acquisition or construction, the direct cost of bringing the asset to the condition necessary for operation, and the estimated future cost of decommissioning and removing the asset. Repairs and maintenance expenditures are charged to operations, while major improvements and replacements which extend the useful life of an asset are capitalized. Depreciation of property, plant and equipment is calculated using the following methods: Heavy machinery and equipment 5 years straight-line Land and buildings 20 years straight-line Leasehold improvements & Other Over the term of lease, and 2 – 5 years straight-line Roads, Camp and other site infrastructure 5 -10 years straight-line Ore-processing mill components Variously between 5 and 30 years straight-line Gains and losses on disposals are determined by comparing the proceeds with the carrying amount and are recognized within other gains or losses in earnings. (e) Mineral Properties Exploration and Evaluation Properties The Corporation capitalizes exploration and evaluation expenses at cost for expenditures incurred after it has obtained legal rights to explore a specific area and before technical feasibility and commercial viability of extracting mineral resources are demonstrable. All direct and indirect costs relating to the exploration of specific properties with the objective of locating, defining and delineating the resource potential of the mineral interests on specific properties are capitalized as exploration and evaluation assets, net of any directly attributable recoveries recognized, such as exploration or investment tax credits. The Corporation has elected to follow a policy of applying the proceeds received from the silver streaming arrangement with Wheaton Precious Metals (“Wheaton”) explained further in Note 13 as a credit to the carrying value of the Exploration and Evaluation Property. Accordingly, the initial deposit has been applied as an offset against the mineral interest asset. At each reporting date, exploration and evaluation assets are evaluated and may be classified as mining operations assets upon achieving technical feasibility and determination of commercial viability. Mining Properties Mining properties are recorded at cost on a property-by-property basis. The recorded cost of mining properties is based on acquisition costs incurred to date, including capitalized exploration and evaluation costs and capitalized development costs, less depletion, recoveries and write-offs. Capitalized development costs include costs incurred to establish access to mineable resources where such costs are expected to provide a long-term economic benefit, as well as operating costs incurred, net of the proceeds from any sales generated, prior to the time the property achieves commercial production. Depletion of mining properties is calculated on the units-of-production basis using estimated mine plan resources, such resources being those defined in the mine plan on which the applicable mining activity is based. The mine plan resources for such purpose are generally as described in an economic analysis supported by a technical report compliant with Canadian National Instrument 43‑101 Standards of Disclosure for Mineral Projects . (f) Intangible Assets Customer relationships, rights to provide services and database assets acquired through business combinations, and acquired patents, are recorded at fair value at acquisition date. All of the Corporation’s intangible assets have finite useful lives, and are amortized using the straight-line method over their expected useful lives. (g) Impairment The carrying amounts of property, plant, equipment, mineral properties and finite-life intangible assets are reviewed and evaluated for indications of impairment. If any such indication exists, an estimate of the recoverable amount is undertaken. If the recoverable amount is less than the carrying amount of the asset, an impairment loss is recognized and the asset is written down to recoverable value. The recoverable amount is the higher of an asset’s “fair value less cost of disposal” and “value-in-use”. Where the asset does not generate cash flows that are independent from other assets, the recoverable amount of the cash-generating unit (“CGU”) to which the asset belongs is determined, with a CGU being the smallest identifiable group of assets and liabilities that generate cash inflows independent from other assets. Exploration and evaluation assets are each separately assessed for impairment, and are not allocated by the Corporation to a CGU for impairment assessment purposes. “Fair value less cost of disposal” is determined as the amount that would be obtained from the sale of the asset or CGU in an arm’s length transaction between knowledgeable and willing parties. In assessing “value-in-use”, the future cash flows expected to arise from the continuing use of the asset or CGU in its present form are estimated using assumptions that an independent market participant would consider appropriate, and are then discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and risks specific to the asset or unit. Where conditions that gave rise to a recognized impairment loss are subsequently reversed, the amount of such reversal is recognized into earnings immediately, though is limited such that the revised carrying amount of the asset or CGU does not exceed the carrying amount that would have been determined had no impairment loss been recognized for the asset or cash generating unit. (h) Provisions General Provisions are recorded when a present legal or constructive obligation exists as a result of past events, where it is probable that an outflow of resources embodying economic benefits will be required to settle the obligation and a reliable estimate of the amount of the obligation can be made. The expense relating to any provision is presented in profit or loss net of any reimbursement. Provisions are discounted using a current risk-free pre-tax rate that reflects where appropriate the risks specific to the liability. Where discounting is used, the increase in the provision due to the passage of time is recognized as a finance cost. Decommissioning and Rehabilitation Provision The Corporation recognizes a decommissioning and rehabilitation provision for statutory, contractual, constructive or legal obligations to undertake reclamation and closure activities associated with property, plant, equipment and mineral properties, generally at the time that an environmental or other site disturbance occurs or a constructive obligation for reclamation and closure activities is determined. When the extent of disturbance increases over the life of an operation, the provision is increased accordingly. Provisions are measured at the present value of the expected future expenditures required to settle the obligation, using a risk-free pre-tax discount rate reflecting the time value of money and risks specific to the liability. The liability is increased for the passage of time, and adjusted for changes to the current market-based risk-free discount rate as well as changes in the estimated amount or timing of the expected future expenditures. The associated restoration costs are capitalized as part of the carrying amount of the related asset and then depreciated accordingly. (i) Revenue Recognition Revenue from environmental services are recognized upon the transfer of promised services or goods based on the output appropriate to the particular service contract and when a customer has the ability to direct the use and obtain the benefits from the service or good. The Corporation provides environmental services related to permitting and remediation activities, generally in the mining industry, as well provide engineering, design, construction and operational services related to water treatment systems. The Corporation identifies the performance obligations in the contract, and the obligations are measured by reference to the transaction price. The transaction price is established in the agreement as either a fixed price or rate per hour. If the contract has multiple performance obligations, the Corporation will assign the transaction price to the various performance obligations. The stand-alone selling price for services identified within the contract are determined based on detailed billing schedules included within the underlying contract with the customer or based on comparable projects where relevant. Generally, performance obligations for environmental services are satisfied over time as the service is provided. Revenue is recognized using the input method with the inputs being costs incurred on related projects. The general payment terms are 30 to 60 days once the performance obligations have been satisfied. Typical payments are received 30 days after the invoice has been received by the client. Management will assess and uses significant judgement to determine whether the Corporation has promised to provide the specified good and service itself (as a principal) or to arrange for those specified goods or services to be provided by another party (as an agent). In those arrangements where the Corporation obtains control of the specified good or service before they are transferred to the customer, it acts as a principal. In those arrangements where the Corporation is the principal, the Corporation will recognize as revenue the “gross” amount paid by the customer for the specified good or service. If the Corporation acts as an agent, it will record revenue as the net consideration that it retains for the specified good or service that was provided to the customer. (j) Share-Based Compensation and Payments The cost of incentive share options and other equity-settled share-based compensation and payment arrangements is recorded based on the estimated fair value at the grant date and charged to earnings over the vesting period. With respect to incentive share options, grant-date fair value is measured using the Black-Scholes option pricing model. With respect to both restricted share units and deferred share units, the grant-date fair value is determined by reference to the share price of the Corporation at the date of grant. Where share-based compensation awards are subject to vesting, each vesting tranche is considered a separate award with its own vesting period and grant-date fair value. Share-based compensation expense is recognized over the tranche’s vesting period by a charge to earnings, based on the number of awards expected to vest. (k) Flow-Through Shares The proceeds from the offering of flow-through shares are allocated between the shares and the sale of tax benefits when the shares are offered. The allocation is made based on the difference between the market value of the shares and the amount the investors pay for the flow‐through shares. A liability is recognized for the premium paid by the investors above the share price for each unit. This is subsequently recognized in the results of operations in the period the eligible exploration expenditures are incurred. (l) Warrants When the Corporation issues units that are comprised of a combination of shares and warrants, the value is assigned to shares and warrants based on their relative fair values. The fair value of the shares is determined by the closing price on the date of the transaction and the fair value of the warrants is determined based on a Black-Scholes option pricing model. (m) Current and Deferred Income Taxes Income tax expense comprises current and deferred income taxes. Current and deferred income taxes are recognized in profit or loss except to the extent that they relate to a business combination or to items recognized directly in equity or in other comprehensive income. Current income taxes are the expected taxes payable or receivable on the taxable income or loss for the period, using tax rates enacted or substantively enacted at the reporting date, and any adjustment to taxes payable in respect of previous periods. Deferred income taxes are recognized using the liability method, on temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for tax purposes. However, deferred income taxes are not recognized if they arise from initial recognition of an asset or liability in a transaction other than a business combination that, at the time of the transaction, affects neither accounting nor taxable profit nor loss. Deferred income taxes are determined using tax rates and laws that have been enacted or substantively enacted at the reporting date and are expected to apply when the related deferred income tax asset is realized or the deferred income tax liability is settled. Deferred income tax assets and liabilities are presented as non-current in the financial statements. Deferred income tax assets and liabilities are offset if there is a legally enforceable right of offset, and they relate to income taxes levied by the same tax authority on the same taxable entity, or on different tax entities but they intend to settle current tax liabilities and assets on a net basis or their tax assets and liabilities will be realized simultaneously. Deferred income tax assets are recognized to the extent that it is probable that future taxable profits will be available against which the assets can be utilized. (n) Translation of Foreign Currencies The financial statements of each entity in the group are measured using the currency of the primary economic environment in which each entity operates (the “functional currency”). The consolidated financial statements are presented in Canadian dollars. The functional currency of all entities in the Corporation group other than AWE is the Canadian dollar, while the functional currency of AWE is the United States dollar. The financial statements of AWE are translated into the Canadian dollar presentation currency using the current rate method as follows:  Assets and liabilities – at the closing rate at the date of the statement of financial position.  Income and expenses – at the average rate of the period (as this is considered a reasonable approximation to actual rates).  All resulting changes are recognized in other comprehensive income as cumulative translation adjustments. When the settlement of a monetary item receivable from or payable to a foreign operation is neither planned nor likely in the foreseeable future, foreign exchange gains and losses arising from the item are considered to form part of the net investment in a foreign operation and are recognized in other comprehensive income. When an entity disposes of its entire interest in a foreign operation, or loses control, joint control, or significant influence over a foreign operation, the foreign currency gains or losses accumulated in other comprehensive income related to the foreign operation are recognized in profit or loss. If an entity disposes of part of an interest in a foreign operation which remains a subsidiary, a proportionate amount of foreign currency gains or losses accumulated in other comprehensive income related to the subsidiary is reallocated between controlling and non-controlling interests. (o) Earnings or Loss Per Share Basic earnings per share is calculated by dividing the net income (loss) for the period by the weighted average number of common shares outstanding during the period. Diluted earnings (loss) per share is calculated using the treasury share method whereby all “in the money” options, warrants and equivalents are assumed to have been exercised at the beginning of the period and the proceeds from the exercise are assumed to have been used to purchase common shares at the average market price during the period. (p) Financial Instruments Financial assets and financial liabilities, including derivative instruments, are initially recognized at fair value on the balance sheet when the Corporation becomes a party to the relevant contractual provisions. Measurement in subsequent periods depends on the financial instrument’s classification. The Corporation classifies the financial instruments in the following categories: at fair value through profit and loss (“FVTPL”), fair value through other comprehensive income (“FVTOCI”) or at amortized cost. (i) Classification The Corporation determines the classification of financial instruments at initial recognition. Financial assets a) Debt - The classification of debt instruments is driven by the Corporation’s business model for managing the financial assets and the relevant contractual cash flow characteristics. A debt instrument is measured at amortized cost if the objective of the business model is to hold the debt instrument for the collection of contractual cash flows, and the asset’s contractual cash flows are comprised solely of payments of principal and interest. b) Equity - On the day of acquisition the Corporation makes an irrevocable election (on an instrument-by- instrument basis) to designate them as at FVTOCI. Investments in common shares are held for long term strategic purposes and not for trading. Our equity investments are designated as FVTOCI in order to provide a more meaningful presentation based on management’s intention, rather than reflecting changes in fair value in net income. Financial liabilities Financial liabilities are measured at amortized cost; unless they are required to be measured at FVTPL (such as instruments held for trading or derivatives) or the Corporation has opted to measure at FVTPL. (ii) Measurement Financial assets and liabilities at FVTPL Financial assets and liabilities at FVTPL are initially recognized at fair value and transaction costs are expensed in the consolidated statement of loss. Realized and unrealized gains and losses arising from changes in the fair value of the financial assets or liabilities held at FVTPL are included in the consolidated statement of loss in the period in which they occur. Where the Corporation has opted to designate a financial liability at FVTPL, any changes associated with our own credit risk will be recognized in Other Comprehensive Income (“OCI”). Financial assets at FVTOCI Investments in equity instruments at FVTOCI are initially recognized at fair value plus transaction costs. Subsequently, the investments are measured at fair value, with gains and losses arising from changes from initial recognition recognized in OCI. Financial assets and liabilities at amortized cost Financial assets and liabilities at amortized cost are initially recognized at fair value net of transaction costs, and subsequently amortized and adjusted by any impairment. Derivative financial instruments Derivatives are classified as FVTPL. Derivatives embedded in financial liabilities are treated as separate derivatives when their risks and characteristics are not closely related to the host contracts. However, the classification approach described above is applied to all financial assets, including those that contain embedded derivatives, without the need to separate the embedded derivative from the host contract. (iii) Impairment of financial assets Impairment of financial assets at amortized cost The Corporation recognizes a loss allowance for expected credit losses on financial assets that are measured at amortized cost. The Corporation is applying the simplified method for trade receivables and is calculating expected credit losses at an amount equal to the lifetime expected credit loss. Impairment losses on financial assets carried at amortized cost are reversed in subsequent periods if the expected credit losses are reversed after the impairment was recognized. (iv) Derecognition Derecognition of financial assets and liabilities Financial assets are derecognized when the investments mature or are sold, and substantially all the risks and rewards of ownership have been transferred. A financial liability is derecognized when the obligation under the liability is discharged, canceled or expired. Gains and losses on derecognition are recognized within other income (expenses). Gains or losses on equity financial assets designated as FVTOCI remain within accumulated OCI. (v) Fair value of financial instruments The fair values of quoted investments in an active market are based on current prices. If there is no active market with a quoted price for a financial asset, the Corporation establishes fair value by using valuation techniques. These include the use of recent arm’s length transactions, reference to other instruments that are substantially the same, discounted cash flow analysis, and option pricing models refined to reflect the financial asset’s specific circumstances. (q) Fair Value Measurement Where fair value is used to measure assets and liabilities in preparing these financial statements, it is estimated at the price at which an orderly transaction to sell the asset or to transfer the liability would take place between market participants at the measurement date under current market conditions. Fair values are determined from the lowest level significant inputs that are classified within the fair value hierarchy defined under IFRS as follows: Level 1 – Quoted prices (unadjusted) in active markets for identical assets or liabilities Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly Level 3 – Inputs for the asset or liability that are unobservable (r) Goodwill The Corporation recognizes goodwill relating to a business combination when the total purchase price exceeds the fair value of the identifiable assets and liabilities of the acquired business. Goodwill is tested annually for impairment of when there is an indication that the goodwill may be impaired. Any impairment is recognized as an expense immediately. Should there be a recovery in value, there is no reversal of previous impairments of Goodwill. (s) Interests in Joint Arrangements Interests in Joint Arrangements A joint arrangement can take the form of a joint venture or joint operation. All joint arrangements involve a contractual arrangement that establishes joint control, which exists only when decisions about the activities that significantly affect the returns of the investee require unanimous consent of the parties sharing control. A joint operation is a joint arrangement in which the Corporation has rights to the assets and liabilities relating to the arrangement whereas a joint venture is a joint arrangement in which the Corporation has rights to only the net assets of the arrangement. Joint ventures are accounted for in accordance with the policy “Investments in Joint Ventures”. Joint operations are accounted for by recognizing the Corporation’s share of the assets, liabilities, revenues, expenses and cash flows of the joint operation in the Corporation’s consolidated financial statements. Investments in Joint Ventures Investments in joint ventures are accounted for using the equity method. The equity method involves recording the initial investment at cost and subsequently adjusting the carrying value of the investment for the Corporation’s proportionate share of the profit and loss, other comprehensive income or loss and any other changes in the joint venture’s net assets such as dividends. The proportionate share of the joint venture’s profit or loss and other comprehensive income or loss is based on its most recent financial statements. Adjustments are made to align any inconsistencies between our accounting policies and the joint venture’s policies before applying the equity method. If the Corporation’s share of the joint venture’s losses equal or exceeds the investment in the joint venture, recognition of further losses is discontinued. After the interest is reduced to zero, additional losses will be provided for and a liability recognized only to the extent that we have incurred legal or constructive obligations or made payments on behalf of the joint venture. If the joint venture subsequently reports profits, then the Corporation resumes recognizing its proportionate share of profits only after its share of the profits equals the share of losses not recognized. At the balance sheet date, the Corporation considers whether there are any indicators of impairment in the joint venture. If indicators exist, the Corporation will assess if impairment to the investment in the joint venture needs to be recorded. (t) Discontinued Operations Discontinued operations comprise of a disposal group, which includes a group of assets and liabilities to be disposed of in a single transaction. A disposal group is measured at the lower of its carrying amount and its fair value less costs to sell. The Corporation will measure all assets and liabilities in the disposal group in accordance with applicable standards. The ‘held-for-sale’ criteria must be met at the balance sheet date in order to be classified as such on the balance sheet. If the ‘held-for-sale’ criteria are met between the balance sheet date and the date of issue of the financial statements, this will be disclosed in the financial statements. (u) Leases Accounting policy applicable from January 1, 2019 onwards: The calculated right-of-use (“ROU”) asset is initially recorded at cost, which comprises the initial amount of the lease liability and any initial direct costs incurred less any lease payments made at or before the initial adoption date. The ROU is depreciated on a straight-line basis over the shorter of the estimated useful life of the asset or the lease term. The lease term includes periods covered by an option to extend if the Corporation’s intention is to exercise that option. The ROU asset is periodically reduced by impairment losses, if any, and adjusted for re-measurements of the lease obligation. The Corporation elected to apply the practical expedient not to recognize ROU assets and lease liabilities for short-term leases that have a lease term of twelve months or less and leases of low value assets. These lease payments associated with these leases are recognized as an expense over the lease term. The Corporation incorporates both the lease and non-lease components as part of the total lease payment, as the Corporation elected not to separate non-lease components. The lease liability is measured at the present value of the expected lease payments over the lease term, discounted at the implicit rate in the lease; if the rate cannot be determined, the incremental borrowing rate is used. The liability is increased for the passage of time and payments on the lease are offset against the lease liability. The liability is subsequently re-measured when there is a change in the lease agreement, such as a change in future lease payments or if the Corporation decides to purchase, extend or terminate the lease option. When the lease liability is re-measured, an adjustment is applied to the carrying value of the ROU asset. Accounting policy applicable prior to January 1, 2019: The determination of whether an arrangement is, or contains a lease, is based on the substance of the arrangement from the initial date of the agreement. It requires consideration as to whether the fulfillment of the arrangement is dependent on the use of a identified asset or assets and the arrangement expresses a right to of use the asset. A lease is classified as an operating lease if it does not transfer substantially all the risks and rewards to the Corporation. Operating lease payments are recognized as an expense in the statement of profit or loss over the term of the lease agreement.

New Accounting Standards

New Accounting Standards	12 Months Ended
	Dec. 31, 2019
New Accounting Standards
New Accounting Standards	4. New Accounting Standards The Corporation adopted IFRS 16 Leases (“IFRS 16”) effective January 1, 2019 using the modified retrospective approach. The modified retrospective approach does not require restatement of prior period financial information and the prior period financial information continues to be reported under IAS 17, Leases (“IAS 17”) and IFRIC 4, Determining Whether an Arrangement Contains a Lease (‘IFRIC 4”). IFRS 16 provides a single lessee accounting model, requiring lessees to recognize a right-of-use (“ROU”) asset and a lease obligation at the lease commencement date. The Corporation completed its review of all existing operating leases and service contracts to identify contracts in scope for IFRS 16 and assessed contracts for embedded leases. A contract is, or contains, a lease if the contract conveys the right to control the use of an identified asset, and the Corporation has the right to obtain substantially all of the economic benefits from the use of the asset during the term of the arrangement. The Corporation, on adoption of IFRS 16, recognized lease liabilities in relation to office leases which had previously been classified as operating leases under the principles of IAS 17. Under the principles of the new standard these leases are measured as lease liabilities at the present value of the remaining lease payments, discounted using the Corporation’s incremental borrowing rate as at January 1, 2019. The associated ROU assets have been measured at an amount equal to the lease liability on January 1, 2019. The ROU asset is subsequently depreciated from the commencement date to the earlier of the end of the lease term, or the end of the useful life of the asset. Furthermore, the ROU asset may be reduced due to impairment losses. On initial adoption, the Corporation recorded ROU assets of $1,883,000 within property, plant and equipment, measured at an amount equal to the lease liability. The Corporation has elected to use the following practical expedients permitted under the standard:  Apply a single discount rate to a portfolio of leases with similar characteristics;  Account for leases with a remaining term of less than twelve (12) months as at January 1, 2019 as short-term leases, recognized as an expense over the lease term; and  Account for lease payments as an expense and not recognize a ROU asset if the underlying asset is of low dollar value (less than $5,000). The following table reconciles the Corporation’s operating lease commitments as at December 31, 2018, as previously disclosed in the Corporation’s annual consolidated financial statements, to the lease liability recognized on adoption of IFRS 16 on January 1, 2019. Adoption of IFRS 16 Lease commitments as at December 31, 2018 $ 1,440 Less: Short-term commitments (50) Add: Operating lease obligations on adoption of IFRS 16 1,048 2,438 Impact of discounting (555) Lease liability as of January 1,2019 $ 1,883

Critical Judgements and Major S

Critical Judgements and Major Sources of Estimation Uncertainty	12 Months Ended
	Dec. 31, 2019
Critical Judgements and Major Sources of Estimation Uncertainty
Critical Judgements and Major Sources of Estimation Uncertainty	5. Critical Judgements and Major Sources of Estimation Uncertainty The preparation of the consolidated financial statements requires management to select accounting policies and make estimates and judgments that may have a significant impact on the consolidated financial statements. Estimates are continuously evaluated and are based on management’s experience and expectations of future events that are believed to be reasonable under the circumstances. The estimates management makes in this regard include those regarding future commodity prices and foreign currency exchange rates, which are an important component of several estimates and assumptions management must make in preparing the financial statements, including but not limited to estimations and assumptions regarding the evaluation of the carrying amount of mineral properties and other assets, the estimation of decommissioning and rehabilitation provisions, the estimation of revenues and the value of the embedded derivative related to sales of concentrate, and the estimation of the net realizable value of inventories. Actual outcomes can differ from these estimates. The most significant judgments in the application of policy and sources of uncertainty in preparing the Corporation’s financial statements are described as follows:  Mineral Reserves and Resources The determination of the Corporation’s estimated mineral reserves and resources by appropriately qualified persons requires significant judgements regarding the interpretation of complex geological and engineering data including the size, depth, shape and nature of the deposit and anticipated plans for mining, as well as estimates of future commodity prices, foreign exchange rates, capital requirements and production costs. These mineral reserve and resource estimates are used in many determinations required to prepare the Corporation’s financial statements, including evaluating the recoverability of the carrying amount of its property, plant, equipment, mineral properties, embedded derivative and estimating amounts of future taxable income in determining whether to record a deferred tax asset.  Impairment and Impairment Reversals of Property, plant, equipment and Mineral properties The Corporation reviews and evaluates the carrying value of each of its property, plant, equipment and mineral properties for impairment and impairment reversals when events or changes in circumstances indicate that the carrying amounts of the related asset may not be recoverable or previous impairment losses may become recoverable. The identification of such events or changes and the performance of the assessment requires significant judgment. Furthermore, management’s estimates of many of the factors relevant to completing this assessment, including commodity prices, foreign currency exchange rates, mineral resources, and operating, capital and reclamation costs, are subject to risks and estimation uncertainties that may further affect the determination of the recoverability of the carrying amounts of its property, plant, equipment and mineral properties. Management has assessed potential indicators of impairment and impairment reversals on the Corporation’s property, plant, equipment and mineral properties and has concluded that no impairment or impairment reversal indicators exist as of December 31, 2019.  Decommissioning and Rehabilitation Provision Management’s determination of the Corporation’s decommissioning and rehabilitation provision is based on the reclamation and closure activities it anticipates as being required, the additional contingent mitigation measures it identifies as potentially being required and its assessment of the likelihood of such contingent measures being required, and its estimate of the probable costs and timing of such activities and measures. There is estimation uncertainty in determining such reclamation and closure activities and measures required and potentially required.  Mineral Properties - Silver Stream Arrangement Upon entering into a long-term streaming arrangement linked to production at operations, Management’s judgment was required in assessing the appropriate accounting treatment for the transaction on the closing date and in future periods. We consider the specific terms of the arrangement to determine whether we have disposed of an interest in the reserves and resources of the operation or executed some other form of arrangement. This assessment considers what the counterparty is entitled to and the associated risks and rewards attributable to them over the life of the operation. These include the contractual terms related to the total production over the life of the arrangement as compared to the expected production over the life of the mine, the percentage being sold, the percentage of payable metals produced, the commodity price referred to in the ongoing payment and any guarantee relating to the upfront payment if production ceases. Management concluded that the initial deposit should be applied against the carrying value of the mineral interest.  Fair value of derivatives The fair values of financial instruments that are not traded in an active market are determined using valuation techniques. Management uses its judgment to select a method of valuation and makes estimates of specific model inputs that are based on conditions existing at the end of each reporting period. Refer to Note 13 for further details on the methods and assumptions associated with the measurement of the embedded derivative within the Silver Streaming Interest. Management has applied judgement in concluding that the completion test as discussed in Note 13 will be met prior to December 31, 2020, therefore the capacity related refund is not likely to be owed to Wheaton Precious Metals Corp.

Cash and Cash Equivalents

Cash and Cash Equivalents	12 Months Ended
	Dec. 31, 2019
Cash and Cash Equivalents
Cash and Cash Equivalents	6. Cash and Cash Equivalents December 31 December 31 2019 2018 Cash at bank and on hand $ 6,313 $ 3,629 Short-term bank deposits 528 4,947 $ 6,841 $ 8,576

Accounts and Other Receivables

Accounts and Other Receivables	12 Months Ended
	Dec. 31, 2019
Accounts and Other Receivables
Accounts and Other Receivables	7. Accounts and Other Receivables December 31 December 31 2019 2018 Trade receivables 1 $ 6,372 $ 6,689 Interest and other 162 122 $ 6,534 $ 6,811 1. Trade receivables are derived primarily from the environmental consulting business (AEG)

Restricted Cash and Deposits

Restricted Cash and Deposits	12 Months Ended
	Dec. 31, 2019
Restricted Cash and Deposits
Restricted Cash and Deposits	8. Restricted Cash and Deposits December 31 December 31 2019 2018 Security for decommissioning obligations $ 2,611 $ 2,569 Other 166 156 $ 2,777 $ 2,725 Security for decommissioning obligations includes cash collateral and a surety bond representing security for future reclamation and closure activities for the Bellekeno, Bermingham, Flame & Moth, Lucky Queen and Onek deposits. Subsequent to year end, the Corporation increased the security by $392,000.

Investments

Investments	12 Months Ended
	Dec. 31, 2019
Investments
Investments	9. Investments December 31 December 31 2019 2018 Common shares held $ 1,289 $ 736 Warrants held 40 24 Total investments 1,329 760 Less: current portion 405 351 $ 924 $ 409 As of December 31, 2019, the Corporation held 11,136,644 common shares of Banyan Gold Corp. (“Banyan”) (December 31, 2018 – 8,736,644) and 995,500 common shares of Golden Predator Mining Corp. (“Golden Predator”) (December 31, 2018 – 1,320,500). As of December 31, 2019, the Corporation also held 2,780,822 warrants of Banyan (December 31, 2018 – 6,155,822) with exercise prices of both $0.15 and $0.09 and expiry dates of July 19, 2020 and April 19, 2021. The Corporation also held 300,000 warrants of Golden Predator (December 31, 2018 – 300,000) with an exercise price of $1.00 per share and an expiry date of December 21, 2020. During the year ended December 31, 2019, the Corporation recorded a pre-tax loss on investments of $3,000 (2018 – $572,000) on warrants held in Banyan and Golden Predator. The Corporation also recorded in other comprehensive income a fair value adjustment loss adjustment, net of tax of $547,000 (2018 – $798,000) on common shares held in Banyan and Golden Predator.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2019
Inventories
Inventories	10. Inventories December 31 December 31 2019 2018 Ore in stockpiles and mill supplies $ 4,647 $ 4,699 Materials and supplies 920 818 Inventory 5,567 5,517 Less: current portion 1,285 818 $ 4,282 $ 4,699

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment
Property, Plant and Equipment	11. Property, Plant and Equipment Heavy Camp, Ore Machinery Leasehold Land and Roads, and Processing and Improvements Cost Buildings Other Site Mill Equipment & Other Total December 31, 2018 $ 1,709 $ 5,569 $ 22,834 $ 9,312 $ 1,503 $ 40,927 Additions — 15 — 1,000 — 1,015 Change of estimate in decommission provision — — 422 — — 422 December 31, 2019 $ 1,709 $ 5,584 $ 23,256 $ 10,312 $ 1,503 $ 42,364 Heavy Camp, Ore Machinery Leasehold Accumulated Land and Roads, and Processing and Improvements Depreciation Buildings Other Site Mill Equipment & Other Total December 31, 2018 $ 429 $ 4,869 $ 11,448 $ 7,533 $ 1,415 $ 25,694 Depreciation 78 153 1,172 528 41 1,972 December 31, 2019 $ 507 $ 5,022 $ 12,620 $ 8,061 $ 1,456 $ 27,666 Heavy Camp, Ore Machinery Leasehold Land and Roads, and Processing and Improvements Net book Value Buildings Other Site Mill Equipment & Other Total December 31, 2018 $ 1,280 $ 700 $ 11,386 $ 1,779 $ 88 $ 15,233 December 31, 2019 $ 1,202 $ 562 $ 10,636 $ 2,251 $ 47 $ 14,698 (i) (i) Refer to Note 15, as amount excludes ROU assets net book value of $1,350,000 as of December 31, 2019 During the year ended December 31, 2019, the Corporation recorded total depreciation of property, plant and equipment of $1,972,000 (2018 – $2,339,000) of which $1,647,000 (2018 – $1,964,000) has been charged to income with $79,000 (2018 – $85,000) recorded in environmental services cost of sales and $1,568,000 (2018 – $1,879,000) reflected under general expenses and mine site care and maintenance. Of the depreciation recorded for the year ended December 31, 2019, $325,000 (2018 – $375,000) was related to property, plant and equipment used in exploration activities and has been capitalized to mineral properties.

Mineral Properties

Mineral Properties	12 Months Ended
	Dec. 31, 2019
Mining assets [member]
Disclosure of detailed information about property, plant and equipment [line items]
Mineral Properties	12. Mineral Properties December 31 Expenditures December 31 2018 Incurred 2019 Mineral Properties Keno Hill District Properties Bellekeno $ 7,123 $ 443 $ 7,566 Lucky Queen 824 117 941 Onek 1,065 40 1,105 McQuesten i 1,997 — 1,997 Silver King 4,464 — 4,464 Flame & Moth 28,311 593 28,904 Bermingham 32,084 4,189 36,273 Elsa Tailings 884 — 884 Other Keno Hill Properties 5,474 1,899 7,373 Total $ 82,226 $ 7,281 $ 89,507 December 31 Expenditures December 31 2017 Incurred 2018 Mineral Properties Keno Hill District Properties Bellekeno $ 6,885 $ 238 $ 7,123 Lucky Queen 693 131 824 Onek 1,034 31 1,065 McQuesten i 1,997 — 1,997 Silver King 4,464 — 4,464 Flame & Moth 22,455 5,856 28,311 Bermingham 23,376 8,708 32,084 Elsa Tailings 884 — 884 Other Keno Hill Properties 2,799 2,675 5,474 Total $ 64,587 $ 17,639 $ 82,226 (i) Effective May 24, 2017, and as amended on July 8, 2019, the Corporation entered into an option agreement with Banyan Gold Corp. (“Banyan”) to buy up to 100% of Alexco’s McQuesten property. In three stages, Banyan may earn up to 100% of the McQuesten property, by incurring a minimum $2,600,000 in exploration expenditures ($1,471,000 incurred to December 31, 2019), issue 1,600,000 shares (1,200,000 shares issued), pay in staged payments a total of $2,600,000 in cash or shares and grant Alexco a 6% net smelter return (“NSR”) royalty with buybacks totalling $7,000,000 to reduce to a 1% NSR royalty on gold and 3% NSR royalty on silver. As at December 31, 2019, the option agreement is in good standing. Mining Exploration and Operations Evaluation Properties Properties Total December 31, 2019 Cost $ 100,073 $ 79,893 $ 179,966 Accumulated depletion and write-downs (90,459) — (90,459) Net book value $ 9,614 $ 79,893 $ 89,507 December 31, 2018 Cost $ 99,472 $ 73,213 $ 172,685 Accumulated depletion and write-downs (90,459) — (90,459) Net book value $ 9,013 $ 73,213 $ 82,226 (a) Keno Hill District Properties The Corporation’s mineral interest holdings in the Keno Hill District, located in Canada’s Yukon Territory, are comprised of a number of properties. The majority of the Corporation’s mineral rights within the Keno Hill District were purchased from the interim receiver of United Keno Hill Mines Limited and UKH Minerals Limited (collectively, “UKHM”) in 2006 and are held by ERDC. As a condition of that purchase, a separate agreement was entered into between Alexco, ERDC, the Government of Canada and the Government of Yukon (the “Subsidiary Agreement”), under which the Government of Canada indemnified ERDC and Alexco from and against all liabilities arising directly or indirectly from the pre-existing environmental condition of the former UKHM mineral rights. The Subsidiary Agreement also provided that ERDC may bring any mine into production on the former UKHM mineral rights by designating a production unit from the mineral rights relevant to that purpose and then assuming responsibility for all costs of the production unit’s water related care and maintenance and water related components of closure reclamation. Other Subsidiary Agreement terms unchanged by the amended and restated Subsidiary Agreement (“ARSA”) include that ERDC is required to pay into a separate reclamation trust a 1.5% net smelter return royalty, to an aggregate maximum of $4 million for all production units, from any future production from the former UKHM mineral rights, commencing once earnings from mining before interest, taxes and depreciation exceed actual exploration costs, to a maximum of $6.2 million, plus actual development and construction capital. That commencement threshold was achieved during the year ended December 31, 2013, and as at December 31, 2019 a total of $40,000 in such royalties had been paid. Additionally, a portion of any future proceeds from sales of the acquired UKHM assets must also be paid into the separate reclamation trust towards. Also substantially unchanged by the ARSA are the indemnification of pre-existing conditions and the right to bring any mine into production on the former UKHM mineral rights. The rights of the Government of Canada under the Subsidiary Agreement and the ARSA are supported by a general security agreement over all of the assets of ERDC. The ARSA can be terminated at ERDC’s election should a closure reclamation plan be prepared but not accepted and approved, and at the Government’s election should ERDC be declared in default under the ARSA. As at December 31, 2019, ERDC is in good standing under the terms and conditions of ARSA. (b) Mining Operations on Care and Maintenance The Corporation’s historical mining operations reflected production from one mine, Bellekeno, a primary silver mine with lead, zinc and gold by-products. During the second quarter of 2013, both the Lucky Queen and Onek properties were reclassified from exploration and evaluation assets to mining operations assets as a result of the receipt of remaining operating permits, though neither property has as yet been placed into production. From September 2013, Bellekeno mining operations were suspended in light of a low silver price environment. Keno Hill Royalty Encumbrances As noted above, under the Subsidiary Agreement and unchanged by the ARSA, the former UKHM mineral rights are subject to a 1.5% net smelter return royalty, to an aggregate maximum of $4 million for all production units. Certain of the Corporation’s non-UKHM mineral rights located within or proximal to the McQuesten property are subject to a net smelter return royalty ranging from 0.5% to 2%. Certain other of the non-UKHM mineral rights located within the McQuesten property are subject to a separate net smelter return royalty of 2% all of which are incorporated under the Option Agreement with Banyan. A limited number of the Corporation’s non-UKHM mineral rights located throughout the remainder of the Keno Hill District are subject to net smelter return royalties ranging from 1% to 1.5%.

Embedded Derivative Asset and S

Embedded Derivative Asset and Silver Stream	12 Months Ended
	Dec. 31, 2019
Embedded Derivative Asset and Silver Stream
Embedded Derivative Asset and Silver Stream	13. Embedded Derivative Asset and Silver Stream December 31 December 31 2019 2018 Embedded derivative asset – Beginning of year $ 9,671 $ 6,600 Fair value adjustment 5,489 3,071 Embedded derivative asset – End of year $ 15,160 $ 9,671 On October 2, 2008 (with subsequent amendments on October 20, 2008, December 10, 2008, December 22, 2009, March 31, 2010, January 15, 2013, March 11, 2014 and June 16, 2014), the Corporation entered into a silver purchase agreement (the "SPA") with Wheaton under which Wheaton will receive 25% of the life of mine payable silver produced by the Corporation from its Keno Hill Silver District properties. The SPA anticipated that the initial silver deliveries would come from the Bellekeno property. Under the SPA, the Corporation received up-front deposit payments from Wheaton totaling US$50,000,000, and received further payments of the lesser of US$3.90 (increasing by 1% per annum after the third year of full production) and the prevailing market price for each ounce of payable silver delivered, if as and when delivered. After the initial 40 year term of the SPA, the Corporation is required to refund the balance of any advance payments received and not yet notionally reduced through silver deliveries. The Corporation would also be required to refund the balance of advance payments received and not yet reduced if Wheaton exercised its right to terminate the SPA in an event of default by the Corporation. On March 29, 2017 the Corporation and Wheaton amended the SPA (the “Amended SPA, such that Wheaton will continue to receive 25% of the life of mine payable silver from the Keno Hill Silver District with a variable production payment based on monthly silver head grade and monthly silver spot price. The actual monthly production payment from Wheaton will be determined based on the monthly average silver head grade at the mill and the monthly average silver spot price, as determined by a grade and pricing curve with an upper ceiling grade of 1,400 grams per tonne (“g/t”) silver and price of US$25 per ounce of silver and a floor grade of 600 g/t silver and price of US$13 per ounce of silver. Additional terms of the amendment include a date for completion of the 400 tonne per day mine and mill completion test, which is reset to December 31, 2020. If the completion test is not satisfied by December 31, 2020, the Corporation will be required to pay a capacity related refund to Wheaton in the maximum amount of US$8,788,000, which can be further proportionately reduced by mine production and mill throughput exceeding 322 tonnes per day for a 30 day period prior to December 31, 2020. The Amended SPA is secured against the Corporation’s mineral properties until repayment of the original deposit of US$50,000,000. In consideration of the foregoing amendments, the Corporation issued 3,000,000 shares on April 10, 2017 to Wheaton with a fair value of $6,600,000 (US$4,934,948). Under the terms of the Amended SPA, the original US$50,000,000 deposit was notionally reduced by this amount. The variability in the future cash flows to be received from Wheaton upon extraction and delivery of their 25% interest of future production is considered an embedded derivative within this host contract under IFRS 9, Financial Instruments . The embedded derivative asset was initially recorded at fair value based on the value of the consideration paid to Wheaton and is to be re-measured at fair value on a recurring basis at each period end with changes in value being recorded within the Statement of Loss. As at December 31, 2019, the fair value of the embedded derivative was calculated based on the discounted future cash flows associated with the difference between the original US$3.90 per ounce production payment Wheaton would pay for each payable ounce delivered under the SPA and the new production payment under the Amended SPA which varies depending on the monthly silver head grade and monthly silver price. The model currently relies upon inputs from the pre-feasibility study (the “PFS"), including payable ounces delivered and calculated future silver head grade. This calculation will be further modified upon completion of further studies, mine plans and/or actual production. The valuation model for the embedded derivative utilizes a probability-based dynamic pricing structure as opposed to a static pricing structure. As such, the discount rate used and silver price assumptions are updated quarterly based on the risk-free yield curve and silver price forward curve at quarter end.

Accounts payable and accrued li

Accounts payable and accrued liabilities	12 Months Ended
	Dec. 31, 2019
Accounts payable and accrued liabilities
Accounts payable and accrued liabilities	14. Accounts Payable and Accrued Liabilities December 31 December 31 2019 2018 Trade payables $ 2,450 $ 3,567 Accrued liabilities and other 2,693 3,643 $ 5,143 $ 7,210

Leases

Leases	12 Months Ended
	Dec. 31, 2019
Leases
Leases	15. Leases a) Right-of-use assets The Corporation’s significant lease arrangements primarily include contracts for leasing office facilities. As at December 31, 2019, $1,350,000 of right-of-use assets were recorded as part of property, plant and equipment. December 31 2019 IFRS 16 adoption as at January 1, 2019 $ 1,883 Depreciation (533) $ 1,350 b) Lease liabilities As at December 31, 2019, the Corporation recorded, $1,446,000 of lease liabilities. The incremental borrowing rate for lease liabilities initially recognized as of January 1, 2019 was 10.83%. December 31 2019 IFRS 16 adoption as at January 1, 2019 $ 1,883 Cash flows: Principal payments (599) Non-cash changes: Accretion 162 Lease liability 1,446 Less : current portion 406 $ 1,040 c) Undiscounted lease payments As at December 31, 2019, the Corporation’s undiscounted lease payments consisted of the following: December 31 2019 2020 $ 540 2021 332 2022 335 2023 321 2024 289 $ 1,817

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2019
Other Assets
Other Assets	16. Other Assets December 31 December 31 2019 2018 Equity investment in joint venture 1 $ 366 $ — Goodwill 550 Intangible assets 22 $ 938 $ During the year ended December 31, 2019 the Corporation entered into two new separate joint arrangements to provide remediation and water treatment services at two sites as follows: Wolverine Project, Yukon Canada The Corporation partnered with Dena Nezziddi Limited Partnership (“DNLP”) and entered into an agreement with the Yukon Government to construct and operate a water treatment system, expiring December 2020. Under the terms of the agreement, AEG retains title to the water treatment system, and will pay 25% of future profits or proceeds from the potential sale of the water treatment system to DNLP upon completion of the project or on such date and manner agreed to by the parties. Mount Nansen Project, Yukon, Canada (Equity Investment in Joint Venture) 1 AEG and a joint venture partner, JDS Energy and Mining Inc. (“JDS”), entered into an agreement on May 6, 2019 to acquire the abandoned Mount Nansen Mine site (“Mount Nansen”) from the Federal Government of Canada. AEG and JDS formed a limited partnership called Mount Nansen Remediation Limited Partnership (the “Joint Venture” or“MNR”), whereby the Federal Government of Canada will pay MNR to remediate environmental contamination from previous mining activities at Mount Nansen (“the Mount Nansen Agreement”). The Joint Venture provides AEG and JDS with the benefit of the net assets of the joint arrangement, while the rights to the assets and liabilities rest primarily with MNR. AEG and JDS each owns a 50% interest with equal voting rights in MNR and will be jointly responsible for Mount Nansen project remediation work and will share equally in the project’s profitability. The interest in the Joint Venture is the carrying amount of the investment under the equity method together with any long-term interests that, in substance, form part of AEG’s net investment in MNR. December 31 2019 Initial capital on equity investment $ 100 Additional capital to equity investment 266 $ 366 The following tables are derived from the financial statements of MNR as of December 31, 2019: a) Balance Sheet December 31 (expressed in thousands of Canadian dollars) 2019 Current assets: Cash $ 199 Work in progress 2,590 Other assets 374 Total current assets $ 3,163 Current liabilities Current payables and other liabilities $ 2,433 Equity 730 Total liabilities and shareholders’equity $ 3,163 All costs incurred in service of the agreement have been capitalized to the balance sheet on the financial statements of MNR as of December 31, 2019.

Credit Facility

Credit Facility	12 Months Ended
	Dec. 31, 2019
Credit Facility
Credit Facility	17. Credit Facility On April 30, 2019, AEG entered into an agreement with the Bank of Montreal for a revolving line of credit (“LOC”) for up to $4,000,000. The LOC has an interest rate of approximately 5.7% on drawn funds, is secured against AEG assets and has customary covenants in place that are tested quarterly. AEG utilized the LOC capacity to post a $1,000,000 letter of credit for a remediation project. As of December 31, 2019 no amounts have been drawn on the LOC.

Decommissioning and Rehabilitat

Decommissioning and Rehabilitation Provision	12 Months Ended
	Dec. 31, 2019
Decommissioning and Rehabilitation Provision
Decommissioning and Rehabilitation Provision	18. Decommissioning and Rehabilitation Provision December 31 December 31 2019 2018 Balance – beginning of year $ 5,286 $ 5,055 Increase due to re-estimation 853 163 Accretion expense, included in finance costs 63 68 Balance – end of year $ 6,202 $ 5,286 The Corporation’s decommissioning and rehabilitation provision consists of costs expected to be incurred in respect of future reclamation and closure activities at the end of the life of the Bellekeno, Flame & Moth, Bermingham, Lucky Queen and Onek deposits. These activities include water treatment, land rehabilitation, ongoing monitoring, care and maintenance and other reclamation and closure related requirements. The total inflation adjusted estimated cash flows required to settle the decommissioning and rehabilitation provision is estimated to be $7,464,000 (December 31, 2018 – $6,561,000), with the expenditures expected to be incurred substantially over the course of the next 20 years. In determining the carrying value of the decommissioning and rehabilitation provision as at December 31, 2019, the Corporation has used a risk-free discount rate of 1.65% (December 31, 2018 – 2.08%) and an inflation rate of 2.0% (December 31, 2018 – 2.0%) resulting in a discounted amount of $6,138,000 (December 31, 2018 – $5,204,000).

Capital and Reserves

Capital and Reserves	12 Months Ended
	Dec. 31, 2019
Capital and Reserves
Capital and Reserves	19. Capital and Reserves Shareholders’ Equity The Corporation is authorized to issue an unlimited number of common shares without par value. The following share transactions took place during the year ended December 31, 2019: 1. On June 7, 2019, the Corporation completed a bought deal public offering and issued 6,500,000 common shares at a price of US$1.00 per share for aggregate gross proceeds of US$6,500,000. This issuance is under the base shelf prospectus filed on September 21, 2018 as detailed below. The Corporation incurred share issuance costs of US$790,000. 2. On April 23, 2019 the Corporation completed a private placement, on a bought deal basis, of 1,842,200 flow -through common shares at a price of $1.90 per share for gross proceeds of $3,500,000. The flow -through common shares are comprised of: (i) 1,579,000 flow -through shares with respect to Canadian exploration expenses priced at $1.90 per share; and (ii) 263,200 flow - through shares with respect to Canadian development priced at $1.90 per share. 3. 470,319 common shares were issued from treasury on the vesting of restricted share units (“RSUs”). 4. 852,500 options were exercised for proceeds of $767,000. 5. 1,315,266 warrants were exercised for proceeds of $2,687,000. 6. 171,480 shares were issued for the Credit Facility. On September 21, 2018 the Corporation filed a short form base shelf prospectus with the securities commissions, which would allow the Corporation to make offerings of common shares, warrants, subscription receipts and/or units up to an aggregate total of $50,000,000 during the 25-month period following September 21, 2018. Equity Incentive Plans At the Corporations annual general meeting held June 6, 2019, the shareholders approved three new equity incentive plans consisting of a stock option plan (the “Option Plan”), a restricted share unit plan (the “RSU Plan”) and a deferred share unit plan (the “DSU Plan”) (collectively the “Equity Incentive Plans”), under which the aggregate number of common shares: i. ii. iii. As at December 31, 2019, a total of 10,465,233 stock options, 663,670 RSUs and 280,000 DSUs were outstanding under the Equity Incentive Plans and a total of 1,449,833 stock options, 2,910,850 RSUs and 1,820,000 DSUs remain available for future granting. Incentive Stock Options Generally stock options under the New Option Plan have a maximum term of five years, vest one-third upon grant and one third on each of the first and second anniversary dates of the grant date. The exercise price may not be less than the immediately preceding five day volume weighted average price of the Corporation’s common shares traded through the facilities of the exchange on which the Corporation’s common shares are listed. The changes in incentive share options outstanding are summarized as follows: Weighted Number of average shares issued exercise or issuable on price exercise Amount Balance - December 31, 2018 $ 1.66 7,738,833 $ 5,469 Stock options granted 1 $ 1.93 4,053,900 — Share-based compensation expense — — 3,507 Options exercised $ 0.90 (852,500) (383) Options forfeited or expired $ 1.94 (475,000) (442) Balance - December 31, 2019 $ 1.81 10,465,233 $ 8,151 Balance - December 31, 2017 $ 2.06 6,546,666 $ 6,258 Stock options granted $ 2.07 2,524,000 — Share-based compensation expense — - 2,480 Options exercised $ 0.77 (281,666) (106) Options forfeited or expired $ 5.39 (1,050,167) (3,163) Balance - December 31, 2018 $ 1.66 7,738,833 $ 5,469 1. For 2019 the Corporation changed its date for its annual stock option grant from occurring in January of the following year to December of the current year, resulting in the 2019 calendar year having two annual grants. During the year ended December 31, 2019, the fair value of options at the date of grant was estimated using the Black-Scholes option pricing model, assuming an average risk-free rate of 1.65% to 1.86% (2018 – 2.01% to 2.16%) per annum, an expected life of options of 4 years (2018– 4 years), an expected volatility of 62% to 72% based on historical volatility (2018 – 73%), an expected forfeiture rate of 0% to 2% (2018 – 2%) and no expected dividends (2018 – nil). Incentive share options outstanding and exercisable at December 31, 2019 are summarized as follows: Options Outstanding Options Exercisable Number of Number of Shares Average Average Shares Average Issuable on Remaining Exercise Issuable on Exercise Exercise Price Exercise Life (Years) Price Exercise Price $0.60 574,333 0.12 $ 0.60 574,333 $ 0.60 $0.84 1,180,000 1.12 $ 0.84 1,180,000 $ 0.84 $1.27 1,699,000 4.01 $ 1.27 849,500 $ 1.27 $1.27 325,000 2.01 $ 1.27 - $ 1.27 $1.73 500,000 1.44 $ 1.73 500,000 $ 1.73 $1.75 40,000 2.63 $ 1.75 40,000 $ 1.75 $1.76 50,000 4.24 $ 1.76 25,000 $ 1.76 $1.78 150,000 1.49 $ 1.78 150,000 $ 1.78 $1.93 60,000 3.36 $ 1.93 60,000 $ 1.93 $2.07 1,781,000 3.08 $ 2.07 1,781,000 $ 2.07 $2.07 587,000 3.08 $ 2.07 — $ 2.07 $2.32 1,544,000 2.09 $ 2.32 1,544,000 $ 2.32 $2.61 1,974,900 4.96 $ 2.61 658,300 $ 2.61 $ 1.81 $ 1.73 The weighted average share price at the date of exercise for options exercised during the year ended December 31, 2019 was $2.51 (2018 – $1.96). During the year ended December 31, 2019, the Corporation recorded total share-based compensation expense of $2,776,000 (2018 – $2,480,000), which related to incentive share options, of which $395,000 (2018 – $368,000) was recorded to mineral properties and $2,381,000 (2018 – $2,112,000) has been charged to income. Restricted Share Units Generally RSUs vest one-third upon issuance and one third on each of the first and second anniversary dates of the issuance date. The changes in RSUs outstanding are summarized as follows: Number of shares issued or issuable on vesting Amount Balance - December 31, 2018 273,989 $ 371 RSUs granted 860,000 — Share-based compensation expense recognized — 963 RSUs vested (470,319) (840) Balance - December 31, 2019 663,670 $ 494 Balance - December 31, 2017 398,325 $ 401 RSUs granted 193,700 — Share-based compensation expense recognized — 467 RSUs vested (318,036) (497) Balance - December 31, 2018 273,989 $ 371 1. For 2019 the Corporation changed its date for its annual RSU grant from occurring in January of the following year to December of the current year, resulting in the 2019 calendar year having two annual grants. During the year ended December 31, 2019 the Corporation granted a total of 860,000 RSUs (2018 – 193,700) with a total grant-date fair value determined to be $1,407,000 (2018 - $399,000). Included in general and administrative expenses for the year ended December 31, 2019 is share-based compensation expense of $963,000 (2018 – $467,000) related to RSU awards. The weighted average share price at the date of vesting for RSUs during the year ended December 31, 2019 was $1.63 (2018 - $1.72). Deferred Share Units Only directors of the Corporation are eligible for DSUs and each DSU vests immediately and is redeemed upon a director ceasing to be a director of the Corporation. The changes in DSUs outstanding are summarized as follows: Number of shares issued or issuable on vesting Amount Balance - December 31, 2018 — $ — DSUs granted 280,000 — Share-based compensation expense recognized — 731 DSUs vested (280,000) (731) Balance - December 31, 2019 — $ — During the year ended December 31, 2019 the Corporation granted a total of 280,000 DSUs (2018 – nil) with a total grant-date fair value determined to be $731,000 (2018 - $nil). Included in general and administrative expenses for the year ended December 31, 2019 is share-based compensation expense of $731,000 (2018 - $nil) related to DSU awards.

Revenue from Environmental Serv

Revenue from Environmental Services	12 Months Ended
	Dec. 31, 2019
Revenue from Environmental Services
Revenue from Environmental Services	20. Revenue from Environmental Services The Corporation recorded environmental services revenue for the years ending December 31, 2019 and 2018 as follows: 2019 2018 Environmental services revenue Fee for service $ 20,463 $ 15,007 Fixed price agreements 8,743 4,873 $ 29,206 $ 19,880

General and Administrative Expe

General and Administrative Expenses by Nature of Expense	12 Months Ended
	Dec. 31, 2019
General and Administrative Expenses by Nature of Expense
General and Administrative Expenses by Nature of Expense	21. General and Administrative Expenses by Nature of Expense The Corporation recorded general and administrative expenses for the years ending December 31, 2019 and 2018 as follows: Corporate 2019 2018 General and administrative expenses Depreciation of property, plant and equipment $ 88 $ 94 Depreciation from ROU assets 211 — Amortization of intangible assets 10 11 Business development and investor relations 382 451 Office, operating and non-operating overheads 583 788 Professional 781 832 Regulatory 205 184 Restructuring costs — 92 Salaries and contractors 3,176 2,262 Share-based compensation 3,977 2,544 Travel 254 240 $ 9,667 $ 7,498 Environmental Services 1 2019 2018 General and administrative expenses Depreciation of property, plant and equipment $ 192 $ 126 Depreciation from ROU assets 318 — Amortization of intangible assets 37 39 Business development 547 370 Office, operating and non-operating overheads 1,750 1,262 Professional 395 142 Salaries and contractors 3,976 2,556 Travel 202 177 $ 7,417 1 $ 4,672 Total General and Administrative Expenses $ 17,084 $ 12,170 Note: 1. The environmental services business, AEG, was sold on February 14, 2020. These expenses expenses will no longer be incurred by Alexco after February 14, 2020 (see Subsequent Events Note 31).

Mine Site Care and Maintenance

Mine Site Care and Maintenance	12 Months Ended
	Dec. 31, 2019
Mine Site Care and Maintenance
Mine Site Care and Maintenance	22. Mine Site Care and Maintenance The Corporation recorded mine site care and maintenance expenses for the years ended December 31, 2019 and 2018 as follows: 2019 2018 Mine site care and maintenance Depreciation of property, plant and equipment $ 1,244 $ 1,292 Salaries and contractors 1 288 913 Materials and equipment 1 143 346 Other expenses 1 387 52 $ 2,062 $ 2,603 1. Included in mine site care and maintenance costs are refurbishment and mill maintenance costs.

Other Income and expenses

Other Income and expenses	12 Months Ended
	Dec. 31, 2019
Other Income and expenses
Other Income and expenses	23. Other Income and expenses The Corporation recorded other income and expenses for the years ended December 31, 2019 and 2018 as follows: 2019 2018 Credit Facility fee – warrants $ (389) $ (930) Interest on lease liabilities (162) — Interest income 164 241 Foreign exchange gain (loss) (41) (15) Other income (expenses) (83) (68) $ (511) $ (772)

Income Tax Expense

Income Tax Expense	12 Months Ended
	Dec. 31, 2019
Income Tax Expense
Income Tax Expense	24. Income Tax Expense The major components of income tax expense for the years ended December 31, 2019 and 2018 are as follows: (a) The income tax provision differs from the amount that would result from applying the Canadian federal and provincial tax rate to income before taxes. These differences result from the following items: 2019 2018 Accounting loss before taxes $ (8,095) $ (6,994) Federal and provincial income tax rate of 27% (2018 – 27%) (2,186) (1,888) Non-deductible permanent differences 977 1,064 Differences in foreign exchange rates 41 — Effect of difference in tax rates — 2 Change in deferred tax asset not recognized 1,568 1,100 Flow-through share renunciation 442 1,656 Change in estimate (43) (427) Other 21 — 820 1,507 Income tax provision $ 820 $ 1,507 (b) The movement in deferred tax assets and liabilities during the year by type of temporary difference, without taking into consideration the offsetting balances within the same tax jurisdiction, is as follows: Mineral Property, Property Plant and Deferred tax liabilities Interest Inventory Equipment Other Total December 31, 2017 $ (2,873) $ (113) $ (1,464) $ (3,374) $ (7,824) (Charged) credit to the income statement (5,046) — (598) (2,930) (8,554) Charged to OCI — — — 20 20 December 31, 2018 $ (7,919) $ (113) $ (2,062) $ (6,284) $ (16,378) (Charged) credited to the income statement (2,117) — (32) (1,726) (3,875) Charged to OCI — — — (2) (2) December 31, 2019 $ (10,036) $ (113) $ (2,094) $ (8,012) $ (20,255) Mineral Loss Property, Decommissioning Property Carry Plant and and Rehabilitation Deferred tax assets Interest Forward Equipment Provision Other Total December 31, 2017 $ 839 $ 4,268 $ 77 $ 1,364 $ 661 $ 7,209 Credited (charged) to the income statement 3,632 2,997 (5) 63 (612) (6,075) December 31, 2018 $ 4,471 $ 7,265 $ 72 $ 1,427 $ 49 $ 13,284 Credited (charged) to the income statement 697 1,298 (20) 247 28 2,250 December 31, 2019 $ 5,168 $ 8,563 $ 52 $ 1,674 $ 77 $ 15,534 Net deferred tax liabilities December 31, 2018 $ (3,098) Charged to the income statement (1,625) Charged to OCI (2) December 31, 2019 $ (4,725) (c) At December 31, 2019, the Corporation has unrecognized tax attributes, noted below, that are available to offset future taxable income. The Corporation has not recognized the deferred tax asset on these temporary differences because they relate to entities within the group that have a history of losses and there is not yet adequately convincing evidence that these entities will generate sufficient future taxable income to enable offset. Tax loss carry forwards $ 50,363 Mineral property interest 8,242 Other 8,800 $ 67,405 As at December 31, 2019, the Corporation has available non-capital losses for income tax purposes in Canada which are available to be carried forward to reduce taxable income in future years and for which no deferred income tax asset has been recognized, and which expire as follows: Total 2033 $ 1,838 2034 8,549 2035 6,685 2036 6,643 2037 8,302 2038 7,441 2039 10,905 $ 50,363

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2019
Financial Instruments
Financial Instruments	25. Financial Instruments Financial Assets and Liabilities Information regarding the carrying amounts of the Corporation’s financial assets and liabilities is summarized as follows: Fair Value Hierarchy December 31 December 31 Classification 2019 2018 Fair value through profit or loss Warrants Level 2 $ 40 $ 24 Embedded derivative - Wheaton agreement Level 3 $ 15,160 $ 9,671 Fair value through other comprehensive loss Investment in marketable securities Level 1 $ 1,289 $ 736 $ 16,489 $ 10,431 During the year ended December 31, 2019, the fair value of warrants were estimated using the Black-Scholes option pricing model, assuming a risk-free interest rate of 1.71% (2018 – 1.85%) per annum, an expected life of options of 0.55 to 1.30 years (2018 – 0.62 to 1.98 years), an expected volatility of 75% to 81% (2018 – 72% to 93%) based on historical volatility and no expected dividends (2018 – nil). During the year ended December 31, 2019, the fair value of the embedded derivative related to the Wheaton agreement was estimated using a probability-based dynamic pricing structure resulting in a mark-to-market adjustment of $5,489,000 (2018 – 3,071,000). The model currently relies upon inputs from the pre-feasibility study dated March 28, 2019, and considers payable ounces delivered and head grade. The model is updated quarterly for the discount rate used and silver price assumptions based on the risk-free yield curve and silver price forward curve at quarter end. The carrying amounts of all of the Corporation’s other financial assets and liabilities, carried at amortized cost, reasonably approximate their fair values due to their short-term nature. Financial Instrument Risk Exposure The Corporation’s activities expose it to a variety of financial risks: market risk (currency risk), credit risk , commodity risk and liquidity risk. Risk management is carried out by management under policies approved by the Board of Directors. Management identifies and evaluates the financial risks in co-operation with the Corporation’s operating units. The Corporation’s overall risk management program seeks to minimize potential adverse effects on the Corporation’s financial performance, in the context of its general capital management objectives as further described in Note 26. Currency Risk Substantially all of the Corporation’s property, plant and equipment and mineral properties are located in Canada; all of its mining operations occur in Canada; and a significant majority of its environmental services revenues are earned in Canada. However, if commercial production recommences at the Keno Hill Silver District, the Corporation’s exposure to US dollar currency risk significantly increases as sales of concentrate and the settlement of the Wheaton streaming payments will be effected in US dollars. In addition, a portion of its environmental services revenues, and receivables arising therefrom, are also denominated in US dollars. As well, while a significant majority of the Corporation’s operating costs are denominated in Canadian dollars, it does have some exposure to costs, as some accounts payable and accrued liabilities are denominated in US dollars. The Corporation is exposed to currency risk at the balance sheet date through the following financial assets and liabilities, which are denominated in US dollars: December 31 December 31 2019 2018 Cash and cash equivalents $ 588 $ 1,374 Accounts and other receivable 1,282 917 Accounts payable and accrued liabilities (925) (649) Net exposure $ 945 $ 1,642 Based on the above net exposure at December 31, 2019, a 10% depreciation or appreciation of the US dollar against the Canadian dollar would result in an approximately $94,500 decrease or increase respectively in both net and comprehensive loss (2018 – $164,000). The Corporation has not employed any currency hedging programs during the current period. Credit Risk Credit risk is the risk of financial loss to the Corporation if a customer or counterparty to a financial instrument fails to meet its obligations. The Corporation’s maximum exposure to credit risk at the balance sheet date under its financial instruments is summarized as follows: December 31 December 31 2019 2018 Trade receivables Currently due $ 5,229 $ 5,228 Past due by 90 days or less, not impaired 1,082 1,375 Past due by greater than 90 days, not impaired 61 86 6,372 6,689 Cash 6,313 3,629 Demand deposits 528 4,947 Term deposits 2,777 2,725 $ 15,990 $ 17,990 Substantially all of the Corporation’s cash, cash equivalents and term deposits are held with major financial institutions in Canada, and management believes the exposure to credit risk with respect to such institutions is not significant. Those financial assets that potentially subject the Corporation to credit risk are primarily receivables. Management actively monitors the Corporation’s exposure to credit risk under its financial instruments, particularly with respect to receivables. The Corporation considers the risk of material loss to be significantly mitigated due to the financial strength of the parties from whom the receivables are due, including with respect to trade accounts receivable as the Corporation’s major customers include government organizations as well as substantial corporate entities. The Corporation historically has not had difficulty collecting receivables from its customers, nor have customers defaulted on payments which would lead to potential impairment. Receivables that are past due by greater than 90 days have been subsequently collected. Commodity Risk The Corporation is subject to commodity price risk from fluctuations in the market prices for silver, lead and zinc. Commodity price risks are affected by many factors that are outside the Corporation’s control including the supply of and demand for metals, inflation, global consumption patterns and political and economic conditions. The financial instrument impacted by commodity prices for the Corporation is the embedded derivative asset. The fair value of the embedded derivative asset is highly correlated to the market price of these metals. The Corporation is exposed to commodity risk at the balance sheet date through the fair value adjustments of its embedded derviate asset: December 31 December 31 2019 2018 Embedded derivative asset $ 15,160 $ 9,671 Total exposure $ 15,160 $ 9,671 Based on the above exposure, the fair value of the embedded derivative asset with a 10% change in the prevailing commodity prices as at December 31, 2019, with all other variables constant, would result in an approximately $1,516,000 decrease or increase respectively in both net and comprehensive loss (2018 – $967,000). The Corporation has not employed any commodity hedging programs during the current period. Liquidity Risk Liquidity risk is the risk that the Corporation will not be able to meet its obligations associated with financial liabilities. The Corporation has a planning and budgeting process in place by which it anticipates and determines the funds required to support its normal operating requirements as well as the growth and development of its mining projects. The Corporation coordinates this planning and budgeting process with its financing activities through the capital management process described in Note 26. The Corporation’s financial liabilities are comprised of its accounts payable and accrued liabilities, the contractual maturities of which at the balance sheet date are summarized as follows: December 31 December 31 2019 2018 Accounts payable and accrued liabilities with contractual maturities Within 90 days or less $ 5,143 $ 7,210 In later than 90 days, not later than one year — — $ 5,143 $ 7,210

Management of Capital

Management of Capital	12 Months Ended
	Dec. 31, 2019
Management of Capital
Management of Capital	26. Management of Capital The capital managed by the Corporation includes the components of shareholders’ equity as described in the consolidated statements of shareholders’ equity. The Corporation is not subject to externally imposed capital requirements. The Corporation’s objectives of capital management are to create long-term value and economic returns for its shareholders. It does this by seeking to maximize the availability of finance to fund the growth and development of its mining projects, and to support the working capital required to maintain its ability to continue as a going concern. The Corporation manages its capital structure and makes adjustments to it in the light of changes in economic conditions and the risk characteristics of its assets, seeking to limit shareholder dilution and optimize its cost of capital while maintaining an acceptable level of risk. To maintain or adjust its capital structure, the Corporation considers all sources of finance reasonably available to it, including but not limited to issuance of new capital, issuance of new debt and the sale of assets in whole or in part, including mineral property interests. The Corporation’s overall strategy with respect to management of capital at December 31, 2019 remains fundamentally unchanged from the year ended December 31, 2018.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	12 Months Ended
	Dec. 31, 2019
Supplemental Cash Flow Information
Supplemental Cash Flow Information	27. Supplemental Cash Flow Information Supplemental cash flow information with respect to the year ended December 31, 2019 and 2018 is summarized as follows: 2019 2018 Operating Cash Flows Arising From Interest and Taxes Interest received $ 140 $ 129 Non-Cash Investing and Financing Transactions Capitalization of share-based compensation to mineral properties $ 395 $ 368 Capitalization of depreciation to mineral properties $ 325 $ 375 Capitalization of re-estimation of decommissioning and rehabilitation provision $ 853 $ 163 Share issuance costs (non-cash) $ 104 $ — Increase in non-cash working capital related to: Mineral properties $ 505 $ 311

Segmented Information

Segmented Information	12 Months Ended
	Dec. 31, 2019
Segmented Information
Segmented Information	28. Segmented Information The Corporation had two operating segments during the years ended December 31, 2019 and 2018, being firstly mining operations, including care and maintenance of the formerly operating Bellekeno mine, producing silver, lead and zinc in the form of concentrates (suspended in September 2013), as well as exploration, underground development and evaluation activities; and secondly environmental services carried out through AEG, providing consulting and project management services in respect of environmental permitting and compliance and site remediation and reclamation. The Corporation’s executive head office and general corporate administration are included within ‘Corporate and other’ to reconcile the reportable segments to the consolidated financial statements. An operating segment is a component of an entity that engages in business activities, operating results are reviewed by the chief operating decision maker with respect to resource allocation and for which discrete financial information is available. The chief operating decision maker for the Corporation is the Chief Executive Officer. Inter-segment transactions are recorded at amounts that reflect normal third-party terms and conditions, with inter-segment profits eliminated from the cost base of the segment incurring the charge. Revenue from non-Canadian customers of both operating segments was derived primarily from the United States. During the year ended December 31, 2019, AEG charged the Mining segment $830,000 in normal course of business at third-party terms. The profit component of those fees have been eliminated in the below table. Segmented information as at and for the year ended December 31, 2019 and 2018 is summarized as follows: As at and for the year ended Environmental Corporate and December 31, 2019 Services Mining Other Total Segment revenues External customers Canadian $ 20,076 $ — $ — $ 20,076 Non-Canadian 9,130 — — 9,130 Total revenues as reported 29,206 — — 29,206 Cost of sales 23,130 — — 23,130 Depreciation and amortization 548 1,244 307 2,099 Share-based compensation — — 3,977 3,977 Other G&A expenses 6,871 69 5,314 12,254 Mine site care and maintenance — 818 — 818 Foreign exchange (gain) loss 5 (5) 41 41 Loss on investments — 1 2 3 Loss on equity investments — — — — Gain on derivative asset — (5,489) — (5,489) Other (income) loss 57 78 333 468 Segment income (loss) before taxes $ (1,405) $ 3,284 $ (9,974) $ (8,095) (i) Total assets $ 9,509 $ 125,878 $ 9,966 $ 145,353 Total liabilities $ 2,898 $ 12,426 $ 3,359 $ 18,683 As at and for year ended Environmental Corporate and December 31, 2018 Services Mining Other Total Segment revenues External customers Canadian $ 13,105 $ — $ — $ 13,105 Non-Canadian 6,775 — — 6,775 Total revenues as reported 19,880 — — 19,880 Cost of sales 13,828 — — 13,828 Depreciation and amortization 165 1,292 105 1,562 Share-based compensation — — 2,544 2,544 Other G&A expenses 4,507 86 5,701 10,294 Mine site care and maintenance — 1,311 — 1,311 Foreign exchange (gain) loss 35 9 (29) 15 Loss on investments 113 459 572 Gain on derivative asset — (3,071) — (3,071) Other (income) loss (8) 68 (241) (181) Segment income (loss) before taxes $ 1,353 $ 192 $ (8,539) $ (6,994) (i) Total assets $ 11,462 $ 113,341 $ 8,215 $ 133,018 Total liabilities $ 4,116 $ 10,284 $ 1,988 $ 16,388 (i) Represents consolidated loss before taxes. For the year ended December 31, 2019, revenue from two customers of the Corporation’s Environmental Services segment represents approximately $15,500,000 of the Corporation’s consolidated revenue.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2019
Related Party Transactions
Related Party Transactions	29. Related Party Transactions The Corporation’s related parties include its subsidiaries and key management personnel. Key management includes the Corporation's Board of Directors and members of senior management. Key management compensation for the years ended December 31, 2019 and 2018 was as follows: 2019 2018 Salaries and other short-term benefits $ 2,614 $ 2,130 Share-based compensation 2,990 2,513 $ 5,604 $ 4,643

Commitments

Commitments	12 Months Ended
	Dec. 31, 2019
Commitments
Commitments	30. Commitments As at December 31, 2019, the Corporation’s contractual obligations are as follows: (a) The Corporation’s other contractual obligations, including with respect to capital asset expenditures, totaled approximately $360,000. (b) As a consequence of its commitment to renounce deductible exploration expenditures to the purchasers of flow-through shares, the Corporation is required to incur further renounceable exploration expenditures totaling $1,952,000 by December 31, 2020.

Subsequent Event

Subsequent Event	12 Months Ended
	Dec. 31, 2019
Subsequent Event
Subsequent Event	31. Subsequent Event On February 14, 2020, the Corporation entered into a Share Purchase Agreement (the “Agreement”) for the sale of Alexco Environmental Group (“AEG”) (refer to Note 28 - Environmental Services Operating Segment), to AEG’s Executive Management (“AEG Management”) led by AEG’s President (a related party due to the AEG President being a key member of management of Alexco). Under the terms of the Agreement, AEG Management purchased all of the shares of AEG in consideration for payment to Alexco of $13,350,000. On closing of the transaction, AEG Management paid $12,100,000 in cash, with the balance of $1,250,000 payable pursuant to a promissory note that matures on February 14, 2021.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
Summary of Significant Accounting Policies
Basis of Consolidation	(a) Basis of Consolidation The Corporation’s consolidated financial statements include the accounts of the Corporation and its subsidiaries. Subsidiaries are entities controlled by the Corporation, where control is achieved by the Corporation being exposed to, or having rights to, variable returns from its involvement with the entity and having the ability to affect those returns through its power over the entity. Subsidiaries are fully consolidated from the date on which control is obtained by Alexco, and are de-consolidated from the date that control ceases. The following subsidiaries have been consolidated for all dates presented within these financial statements, and are wholly owned: Alexco Keno Hill Mining Corp., Elsa Reclamation & Development Corporation Ltd. (“ERDC”), Alexco Exploration Canada Corp., Alexco Environmental Group Inc., Alexco Environmental Group Holdings Inc., Alexco Water and Environment Inc. (“AWE”) and Contango Strategies Ltd. All significant inter-company transactions, balances, income and expenses are eliminated on consolidation.
Cash and Cash Equivalents	(b) Cash and Cash Equivalents Cash and cash equivalents are unrestricted as to use and consist of cash on hand, demand deposits and short term interest-bearing investments with maturities of 90 days or less from the original date of acquisition and which can readily be liquidated to known amounts of cash. Redeemable interest bearing investments with maturities of up to one year are considered cash equivalents if they can readily be liquidated at any point in time to known amounts of cash and they are redeemable thereafter until maturity for invested value plus accrued interest.
Inventories	(c) Inventories Inventories include ore in stockpiles, concentrate and materials and supplies. Ore in stockpiles and concentrate are recorded at the lower of weighted average cost and net realizable value. Cost comprises all mining and processing costs incurred, including labor, consumables, production-related overheads, depreciation of production-related property, plant and equipment and depletion of related mineral properties. Net realizable value is estimated at the selling price in the ordinary course of business less applicable variable selling expenses. Materials and supplies are valued at the lower of cost and replacement cost, costs based on landed cost of purchase, net of a provision for obsolescence where applicable. When inventories have been written down to net realizable value, a new assessment of net realizable value is made in each subsequent period. When circumstances that caused the write-down no longer exist or when there is clear evidence of an increase in net realizable value, the amount of the write down is reversed.
Property, Plant and Equipment	(d) Property, Plant and Equipment Property, plant and equipment are stated at historical cost less accumulated depreciation and impairment write-downs. The cost capitalized is determined by the fair value of consideration given to acquire the asset at the time of acquisition or construction, the direct cost of bringing the asset to the condition necessary for operation, and the estimated future cost of decommissioning and removing the asset. Repairs and maintenance expenditures are charged to operations, while major improvements and replacements which extend the useful life of an asset are capitalized. Depreciation of property, plant and equipment is calculated using the following methods: Heavy machinery and equipment 5 years straight-line Land and buildings 20 years straight-line Leasehold improvements & Other Over the term of lease, and 2 – 5 years straight-line Roads, Camp and other site infrastructure 5 -10 years straight-line Ore-processing mill components Variously between 5 and 30 years straight-line Gains and losses on disposals are determined by comparing the proceeds with the carrying amount and are recognized within other gains or losses in earnings.
Mineral Properties	(e) Mineral Properties Exploration and Evaluation Properties The Corporation capitalizes exploration and evaluation expenses at cost for expenditures incurred after it has obtained legal rights to explore a specific area and before technical feasibility and commercial viability of extracting mineral resources are demonstrable. All direct and indirect costs relating to the exploration of specific properties with the objective of locating, defining and delineating the resource potential of the mineral interests on specific properties are capitalized as exploration and evaluation assets, net of any directly attributable recoveries recognized, such as exploration or investment tax credits. The Corporation has elected to follow a policy of applying the proceeds received from the silver streaming arrangement with Wheaton Precious Metals (“Wheaton”) explained further in Note 13 as a credit to the carrying value of the Exploration and Evaluation Property. Accordingly, the initial deposit has been applied as an offset against the mineral interest asset. At each reporting date, exploration and evaluation assets are evaluated and may be classified as mining operations assets upon achieving technical feasibility and determination of commercial viability. Mining Properties Mining properties are recorded at cost on a property-by-property basis. The recorded cost of mining properties is based on acquisition costs incurred to date, including capitalized exploration and evaluation costs and capitalized development costs, less depletion, recoveries and write-offs. Capitalized development costs include costs incurred to establish access to mineable resources where such costs are expected to provide a long-term economic benefit, as well as operating costs incurred, net of the proceeds from any sales generated, prior to the time the property achieves commercial production. Depletion of mining properties is calculated on the units-of-production basis using estimated mine plan resources, such resources being those defined in the mine plan on which the applicable mining activity is based. The mine plan resources for such purpose are generally as described in an economic analysis supported by a technical report compliant with Canadian National Instrument 43‑101 Standards of Disclosure for Mineral Projects .
Intangible Assets	(f) Intangible Assets Customer relationships, rights to provide services and database assets acquired through business combinations, and acquired patents, are recorded at fair value at acquisition date. All of the Corporation’s intangible assets have finite useful lives, and are amortized using the straight-line method over their expected useful lives.
Impairment of Non-Current Non-Financial Assets	(g) Impairment The carrying amounts of property, plant, equipment, mineral properties and finite-life intangible assets are reviewed and evaluated for indications of impairment. If any such indication exists, an estimate of the recoverable amount is undertaken. If the recoverable amount is less than the carrying amount of the asset, an impairment loss is recognized and the asset is written down to recoverable value. The recoverable amount is the higher of an asset’s “fair value less cost of disposal” and “value-in-use”. Where the asset does not generate cash flows that are independent from other assets, the recoverable amount of the cash-generating unit (“CGU”) to which the asset belongs is determined, with a CGU being the smallest identifiable group of assets and liabilities that generate cash inflows independent from other assets. Exploration and evaluation assets are each separately assessed for impairment, and are not allocated by the Corporation to a CGU for impairment assessment purposes. “Fair value less cost of disposal” is determined as the amount that would be obtained from the sale of the asset or CGU in an arm’s length transaction between knowledgeable and willing parties. In assessing “value-in-use”, the future cash flows expected to arise from the continuing use of the asset or CGU in its present form are estimated using assumptions that an independent market participant would consider appropriate, and are then discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and risks specific to the asset or unit. Where conditions that gave rise to a recognized impairment loss are subsequently reversed, the amount of such reversal is recognized into earnings immediately, though is limited such that the revised carrying amount of the asset or CGU does not exceed the carrying amount that would have been determined had no impairment loss been recognized for the asset or cash generating unit.
Provisions	(h) Provisions General Provisions are recorded when a present legal or constructive obligation exists as a result of past events, where it is probable that an outflow of resources embodying economic benefits will be required to settle the obligation and a reliable estimate of the amount of the obligation can be made. The expense relating to any provision is presented in profit or loss net of any reimbursement. Provisions are discounted using a current risk-free pre-tax rate that reflects where appropriate the risks specific to the liability. Where discounting is used, the increase in the provision due to the passage of time is recognized as a finance cost. Decommissioning and Rehabilitation Provision The Corporation recognizes a decommissioning and rehabilitation provision for statutory, contractual, constructive or legal obligations to undertake reclamation and closure activities associated with property, plant, equipment and mineral properties, generally at the time that an environmental or other site disturbance occurs or a constructive obligation for reclamation and closure activities is determined. When the extent of disturbance increases over the life of an operation, the provision is increased accordingly. Provisions are measured at the present value of the expected future expenditures required to settle the obligation, using a risk-free pre-tax discount rate reflecting the time value of money and risks specific to the liability. The liability is increased for the passage of time, and adjusted for changes to the current market-based risk-free discount rate as well as changes in the estimated amount or timing of the expected future expenditures. The associated restoration costs are capitalized as part of the carrying amount of the related asset and then depreciated accordingly.
Revenue Recognition	(i) Revenue Recognition Revenue from environmental services are recognized upon the transfer of promised services or goods based on the output appropriate to the particular service contract and when a customer has the ability to direct the use and obtain the benefits from the service or good. The Corporation provides environmental services related to permitting and remediation activities, generally in the mining industry, as well provide engineering, design, construction and operational services related to water treatment systems. The Corporation identifies the performance obligations in the contract, and the obligations are measured by reference to the transaction price. The transaction price is established in the agreement as either a fixed price or rate per hour. If the contract has multiple performance obligations, the Corporation will assign the transaction price to the various performance obligations. The stand-alone selling price for services identified within the contract are determined based on detailed billing schedules included within the underlying contract with the customer or based on comparable projects where relevant. Generally, performance obligations for environmental services are satisfied over time as the service is provided. Revenue is recognized using the input method with the inputs being costs incurred on related projects. The general payment terms are 30 to 60 days once the performance obligations have been satisfied. Typical payments are received 30 days after the invoice has been received by the client. Management will assess and uses significant judgement to determine whether the Corporation has promised to provide the specified good and service itself (as a principal) or to arrange for those specified goods or services to be provided by another party (as an agent). In those arrangements where the Corporation obtains control of the specified good or service before they are transferred to the customer, it acts as a principal. In those arrangements where the Corporation is the principal, the Corporation will recognize as revenue the “gross” amount paid by the customer for the specified good or service. If the Corporation acts as an agent, it will record revenue as the net consideration that it retains for the specified good or service that was provided to the customer.
Share-Based Compensation and Payments	(j) Share-Based Compensation and Payments The cost of incentive share options and other equity-settled share-based compensation and payment arrangements is recorded based on the estimated fair value at the grant date and charged to earnings over the vesting period. With respect to incentive share options, grant-date fair value is measured using the Black-Scholes option pricing model. With respect to both restricted share units and deferred share units, the grant-date fair value is determined by reference to the share price of the Corporation at the date of grant. Where share-based compensation awards are subject to vesting, each vesting tranche is considered a separate award with its own vesting period and grant-date fair value. Share-based compensation expense is recognized over the tranche’s vesting period by a charge to earnings, based on the number of awards expected to vest.
Flow-Through Shares	(k) Flow-Through Shares The proceeds from the offering of flow-through shares are allocated between the shares and the sale of tax benefits when the shares are offered. The allocation is made based on the difference between the market value of the shares and the amount the investors pay for the flow‐through shares. A liability is recognized for the premium paid by the investors above the share price for each unit. This is subsequently recognized in the results of operations in the period the eligible exploration expenditures are incurred.
Warrants	(l) Warrants When the Corporation issues units that are comprised of a combination of shares and warrants, the value is assigned to shares and warrants based on their relative fair values. The fair value of the shares is determined by the closing price on the date of the transaction and the fair value of the warrants is determined based on a Black-Scholes option pricing model.
Current and Deferred Income Taxes	(m) Current and Deferred Income Taxes Income tax expense comprises current and deferred income taxes. Current and deferred income taxes are recognized in profit or loss except to the extent that they relate to a business combination or to items recognized directly in equity or in other comprehensive income. Current income taxes are the expected taxes payable or receivable on the taxable income or loss for the period, using tax rates enacted or substantively enacted at the reporting date, and any adjustment to taxes payable in respect of previous periods. Deferred income taxes are recognized using the liability method, on temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for tax purposes. However, deferred income taxes are not recognized if they arise from initial recognition of an asset or liability in a transaction other than a business combination that, at the time of the transaction, affects neither accounting nor taxable profit nor loss. Deferred income taxes are determined using tax rates and laws that have been enacted or substantively enacted at the reporting date and are expected to apply when the related deferred income tax asset is realized or the deferred income tax liability is settled. Deferred income tax assets and liabilities are presented as non-current in the financial statements. Deferred income tax assets and liabilities are offset if there is a legally enforceable right of offset, and they relate to income taxes levied by the same tax authority on the same taxable entity, or on different tax entities but they intend to settle current tax liabilities and assets on a net basis or their tax assets and liabilities will be realized simultaneously. Deferred income tax assets are recognized to the extent that it is probable that future taxable profits will be available against which the assets can be utilized.
Translation of Foreign Currencies	(n) Translation of Foreign Currencies The financial statements of each entity in the group are measured using the currency of the primary economic environment in which each entity operates (the “functional currency”). The consolidated financial statements are presented in Canadian dollars. The functional currency of all entities in the Corporation group other than AWE is the Canadian dollar, while the functional currency of AWE is the United States dollar. The financial statements of AWE are translated into the Canadian dollar presentation currency using the current rate method as follows:  Assets and liabilities – at the closing rate at the date of the statement of financial position.  Income and expenses – at the average rate of the period (as this is considered a reasonable approximation to actual rates).  All resulting changes are recognized in other comprehensive income as cumulative translation adjustments. When the settlement of a monetary item receivable from or payable to a foreign operation is neither planned nor likely in the foreseeable future, foreign exchange gains and losses arising from the item are considered to form part of the net investment in a foreign operation and are recognized in other comprehensive income. When an entity disposes of its entire interest in a foreign operation, or loses control, joint control, or significant influence over a foreign operation, the foreign currency gains or losses accumulated in other comprehensive income related to the foreign operation are recognized in profit or loss. If an entity disposes of part of an interest in a foreign operation which remains a subsidiary, a proportionate amount of foreign currency gains or losses accumulated in other comprehensive income related to the subsidiary is reallocated between controlling and non-controlling interests.
Earnings or Loss Per Share	(o) Earnings or Loss Per Share Basic earnings per share is calculated by dividing the net income (loss) for the period by the weighted average number of common shares outstanding during the period. Diluted earnings (loss) per share is calculated using the treasury share method whereby all “in the money” options, warrants and equivalents are assumed to have been exercised at the beginning of the period and the proceeds from the exercise are assumed to have been used to purchase common shares at the average market price during the period.
Financial Instruments	(p) Financial Instruments Financial assets and financial liabilities, including derivative instruments, are initially recognized at fair value on the balance sheet when the Corporation becomes a party to the relevant contractual provisions. Measurement in subsequent periods depends on the financial instrument’s classification. The Corporation classifies the financial instruments in the following categories: at fair value through profit and loss (“FVTPL”), fair value through other comprehensive income (“FVTOCI”) or at amortized cost. (i) Classification The Corporation determines the classification of financial instruments at initial recognition. Financial assets a) Debt - The classification of debt instruments is driven by the Corporation’s business model for managing the financial assets and the relevant contractual cash flow characteristics. A debt instrument is measured at amortized cost if the objective of the business model is to hold the debt instrument for the collection of contractual cash flows, and the asset’s contractual cash flows are comprised solely of payments of principal and interest. b) Equity - On the day of acquisition the Corporation makes an irrevocable election (on an instrument-by- instrument basis) to designate them as at FVTOCI. Investments in common shares are held for long term strategic purposes and not for trading. Our equity investments are designated as FVTOCI in order to provide a more meaningful presentation based on management’s intention, rather than reflecting changes in fair value in net income. Financial liabilities Financial liabilities are measured at amortized cost; unless they are required to be measured at FVTPL (such as instruments held for trading or derivatives) or the Corporation has opted to measure at FVTPL. (ii) Measurement Financial assets and liabilities at FVTPL Financial assets and liabilities at FVTPL are initially recognized at fair value and transaction costs are expensed in the consolidated statement of loss. Realized and unrealized gains and losses arising from changes in the fair value of the financial assets or liabilities held at FVTPL are included in the consolidated statement of loss in the period in which they occur. Where the Corporation has opted to designate a financial liability at FVTPL, any changes associated with our own credit risk will be recognized in Other Comprehensive Income (“OCI”). Financial assets at FVTOCI Investments in equity instruments at FVTOCI are initially recognized at fair value plus transaction costs. Subsequently, the investments are measured at fair value, with gains and losses arising from changes from initial recognition recognized in OCI. Financial assets and liabilities at amortized cost Financial assets and liabilities at amortized cost are initially recognized at fair value net of transaction costs, and subsequently amortized and adjusted by any impairment. Derivative financial instruments Derivatives are classified as FVTPL. Derivatives embedded in financial liabilities are treated as separate derivatives when their risks and characteristics are not closely related to the host contracts. However, the classification approach described above is applied to all financial assets, including those that contain embedded derivatives, without the need to separate the embedded derivative from the host contract. (iii) Impairment of financial assets Impairment of financial assets at amortized cost The Corporation recognizes a loss allowance for expected credit losses on financial assets that are measured at amortized cost. The Corporation is applying the simplified method for trade receivables and is calculating expected credit losses at an amount equal to the lifetime expected credit loss. Impairment losses on financial assets carried at amortized cost are reversed in subsequent periods if the expected credit losses are reversed after the impairment was recognized. (iv) Derecognition Derecognition of financial assets and liabilities Financial assets are derecognized when the investments mature or are sold, and substantially all the risks and rewards of ownership have been transferred. A financial liability is derecognized when the obligation under the liability is discharged, canceled or expired. Gains and losses on derecognition are recognized within other income (expenses). Gains or losses on equity financial assets designated as FVTOCI remain within accumulated OCI. (v) Fair value of financial instruments The fair values of quoted investments in an active market are based on current prices. If there is no active market with a quoted price for a financial asset, the Corporation establishes fair value by using valuation techniques. These include the use of recent arm’s length transactions, reference to other instruments that are substantially the same, discounted cash flow analysis, and option pricing models refined to reflect the financial asset’s specific circumstances.
Fair Value Measurement	(q) Fair Value Measurement Where fair value is used to measure assets and liabilities in preparing these financial statements, it is estimated at the price at which an orderly transaction to sell the asset or to transfer the liability would take place between market participants at the measurement date under current market conditions. Fair values are determined from the lowest level significant inputs that are classified within the fair value hierarchy defined under IFRS as follows: Level 1 – Quoted prices (unadjusted) in active markets for identical assets or liabilities Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly Level 3 – Inputs for the asset or liability that are unobservable
Goodwill	(r) Goodwill The Corporation recognizes goodwill relating to a business combination when the total purchase price exceeds the fair value of the identifiable assets and liabilities of the acquired business. Goodwill is tested annually for impairment of when there is an indication that the goodwill may be impaired. Any impairment is recognized as an expense immediately. Should there be a recovery in value, there is no reversal of previous impairments of Goodwill.
Interests in Joint Arrangements	(s) Interests in Joint Arrangements Interests in Joint Arrangements A joint arrangement can take the form of a joint venture or joint operation. All joint arrangements involve a contractual arrangement that establishes joint control, which exists only when decisions about the activities that significantly affect the returns of the investee require unanimous consent of the parties sharing control. A joint operation is a joint arrangement in which the Corporation has rights to the assets and liabilities relating to the arrangement whereas a joint venture is a joint arrangement in which the Corporation has rights to only the net assets of the arrangement. Joint ventures are accounted for in accordance with the policy “Investments in Joint Ventures”. Joint operations are accounted for by recognizing the Corporation’s share of the assets, liabilities, revenues, expenses and cash flows of the joint operation in the Corporation’s consolidated financial statements. Investments in Joint Ventures Investments in joint ventures are accounted for using the equity method. The equity method involves recording the initial investment at cost and subsequently adjusting the carrying value of the investment for the Corporation’s proportionate share of the profit and loss, other comprehensive income or loss and any other changes in the joint venture’s net assets such as dividends. The proportionate share of the joint venture’s profit or loss and other comprehensive income or loss is based on its most recent financial statements. Adjustments are made to align any inconsistencies between our accounting policies and the joint venture’s policies before applying the equity method. If the Corporation’s share of the joint venture’s losses equal or exceeds the investment in the joint venture, recognition of further losses is discontinued. After the interest is reduced to zero, additional losses will be provided for and a liability recognized only to the extent that we have incurred legal or constructive obligations or made payments on behalf of the joint venture. If the joint venture subsequently reports profits, then the Corporation resumes recognizing its proportionate share of profits only after its share of the profits equals the share of losses not recognized. At the balance sheet date, the Corporation considers whether there are any indicators of impairment in the joint venture. If indicators exist, the Corporation will assess if impairment to the investment in the joint venture needs to be recorded.
Discontinued Operations	(t) Discontinued Operations Discontinued operations comprise of a disposal group, which includes a group of assets and liabilities to be disposed of in a single transaction. A disposal group is measured at the lower of its carrying amount and its fair value less costs to sell. The Corporation will measure all assets and liabilities in the disposal group in accordance with applicable standards. The ‘held-for-sale’ criteria must be met at the balance sheet date in order to be classified as such on the balance sheet. If the ‘held-for-sale’ criteria are met between the balance sheet date and the date of issue of the financial statements, this will be disclosed in the financial statements.
Leases	(u) Leases Accounting policy applicable from January 1, 2019 onwards: The calculated right-of-use (“ROU”) asset is initially recorded at cost, which comprises the initial amount of the lease liability and any initial direct costs incurred less any lease payments made at or before the initial adoption date. The ROU is depreciated on a straight-line basis over the shorter of the estimated useful life of the asset or the lease term. The lease term includes periods covered by an option to extend if the Corporation’s intention is to exercise that option. The ROU asset is periodically reduced by impairment losses, if any, and adjusted for re-measurements of the lease obligation. The Corporation elected to apply the practical expedient not to recognize ROU assets and lease liabilities for short-term leases that have a lease term of twelve months or less and leases of low value assets. These lease payments associated with these leases are recognized as an expense over the lease term. The Corporation incorporates both the lease and non-lease components as part of the total lease payment, as the Corporation elected not to separate non-lease components. The lease liability is measured at the present value of the expected lease payments over the lease term, discounted at the implicit rate in the lease; if the rate cannot be determined, the incremental borrowing rate is used. The liability is increased for the passage of time and payments on the lease are offset against the lease liability. The liability is subsequently re-measured when there is a change in the lease agreement, such as a change in future lease payments or if the Corporation decides to purchase, extend or terminate the lease option. When the lease liability is re-measured, an adjustment is applied to the carrying value of the ROU asset. Accounting policy applicable prior to January 1, 2019: The determination of whether an arrangement is, or contains a lease, is based on the substance of the arrangement from the initial date of the agreement. It requires consideration as to whether the fulfillment of the arrangement is dependent on the use of a identified asset or assets and the arrangement expresses a right to of use the asset. A lease is classified as an operating lease if it does not transfer substantially all the risks and rewards to the Corporation. Operating lease payments are recognized as an expense in the statement of profit or loss over the term of the lease agreement.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Summary of Significant Accounting Policies
Schedule of depreciation of property, plant and equipment	Depreciation of property, plant and equipment is calculated using the following methods: Heavy machinery and equipment 5 years straight-line Land and buildings 20 years straight-line Leasehold improvements & Other Over the term of lease, and 2 – 5 years straight-line Roads, Camp and other site infrastructure 5 -10 years straight-line Ore-processing mill components Variously between 5 and 30 years straight-line

New Accounting Standards (Table

New Accounting Standards (Tables)	12 Months Ended
	Dec. 31, 2019
New Accounting Standards
Schedule of reconciliation of operating lease commitments with lease liability	Adoption of IFRS 16 Lease commitments as at December 31, 2018 $ 1,440 Less: Short-term commitments (50) Add: Operating lease obligations on adoption of IFRS 16 1,048 2,438 Impact of discounting (555) Lease liability as of January 1,2019 $ 1,883

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	12 Months Ended
	Dec. 31, 2019
Cash and Cash Equivalents
Schedule of cash and bank balances at central banks	December 31 December 31 2019 2018 Cash at bank and on hand $ 6,313 $ 3,629 Short-term bank deposits 528 4,947 $ 6,841 $ 8,576

Accounts and Other Receivables

Accounts and Other Receivables (Tables)	12 Months Ended
	Dec. 31, 2019
Accounts and Other Receivables
Schedule of accounts and other receivables	December 31 December 31 2019 2018 Trade receivables 1 $ 6,372 $ 6,689 Interest and other 162 122 $ 6,534 $ 6,811 1. Trade receivables are derived primarily from the environmental consulting business (AEG)

Restricted Cash and Deposits (T

Restricted Cash and Deposits (Tables)	12 Months Ended
	Dec. 31, 2019
Restricted Cash and Deposits
Schedule of restricted cash and cash equivalent	December 31 December 31 2019 2018 Security for decommissioning obligations $ 2,611 $ 2,569 Other 166 156 $ 2,777 $ 2,725

Investments (Tables)

Investments (Tables)	12 Months Ended
	Dec. 31, 2019
Investments
Schedule of investments	December 31 December 31 2019 2018 Common shares held $ 1,289 $ 736 Warrants held 40 24 Total investments 1,329 760 Less: current portion 405 351 $ 924 $ 409

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2019
Inventories
Schedule of inventories	December 31 December 31 2019 2018 Ore in stockpiles and mill supplies $ 4,647 $ 4,699 Materials and supplies 920 818 Inventory 5,567 5,517 Less: current portion 1,285 818 $ 4,282 $ 4,699

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment
Disclosure of detailed information about property, plant and equipment	Heavy Camp, Ore Machinery Leasehold Land and Roads, and Processing and Improvements Cost Buildings Other Site Mill Equipment & Other Total December 31, 2018 $ 1,709 $ 5,569 $ 22,834 $ 9,312 $ 1,503 $ 40,927 Additions — 15 — 1,000 — 1,015 Change of estimate in decommission provision — — 422 — — 422 December 31, 2019 $ 1,709 $ 5,584 $ 23,256 $ 10,312 $ 1,503 $ 42,364 Heavy Camp, Ore Machinery Leasehold Accumulated Land and Roads, and Processing and Improvements Depreciation Buildings Other Site Mill Equipment & Other Total December 31, 2018 $ 429 $ 4,869 $ 11,448 $ 7,533 $ 1,415 $ 25,694 Depreciation 78 153 1,172 528 41 1,972 December 31, 2019 $ 507 $ 5,022 $ 12,620 $ 8,061 $ 1,456 $ 27,666 Heavy Camp, Ore Machinery Leasehold Land and Roads, and Processing and Improvements Net book Value Buildings Other Site Mill Equipment & Other Total December 31, 2018 $ 1,280 $ 700 $ 11,386 $ 1,779 $ 88 $ 15,233 December 31, 2019 $ 1,202 $ 562 $ 10,636 $ 2,251 $ 47 $ 14,698 (i)

Mineral Properties (Tables)

Mineral Properties (Tables)	12 Months Ended
	Dec. 31, 2019
Mineral Properties
Disclosure of detailed information about investment property	December 31 Expenditures December 31 2018 Incurred 2019 Mineral Properties Keno Hill District Properties Bellekeno $ 7,123 $ 443 $ 7,566 Lucky Queen 824 117 941 Onek 1,065 40 1,105 McQuesten i 1,997 — 1,997 Silver King 4,464 — 4,464 Flame & Moth 28,311 593 28,904 Bermingham 32,084 4,189 36,273 Elsa Tailings 884 — 884 Other Keno Hill Properties 5,474 1,899 7,373 Total $ 82,226 $ 7,281 $ 89,507 December 31 Expenditures December 31 2017 Incurred 2018 Mineral Properties Keno Hill District Properties Bellekeno $ 6,885 $ 238 $ 7,123 Lucky Queen 693 131 824 Onek 1,034 31 1,065 McQuesten i 1,997 — 1,997 Silver King 4,464 — 4,464 Flame & Moth 22,455 5,856 28,311 Bermingham 23,376 8,708 32,084 Elsa Tailings 884 — 884 Other Keno Hill Properties 2,799 2,675 5,474 Total $ 64,587 $ 17,639 $ 82,226 (i) Effective May 24, 2017, and as amended on July 8, 2019, the Corporation entered into an option agreement with Banyan Gold Corp. (“Banyan”) to buy up to 100% of Alexco’s McQuesten property. In three stages, Banyan may earn up to 100% of the McQuesten property, by incurring a minimum $2,600,000 in exploration expenditures ($1,471,000 incurred to December 31, 2019), issue 1,600,000 shares (1,200,000 shares issued), pay in staged payments a total of $2,600,000 in cash or shares and grant Alexco a 6% net smelter return (“NSR”) royalty with buybacks totalling $7,000,000 to reduce to a 1% NSR royalty on gold and 3% NSR royalty on silver.
Schedule of changes in mineral properties	Mining Exploration and Operations Evaluation Properties Properties Total December 31, 2019 Cost $ 100,073 $ 79,893 $ 179,966 Accumulated depletion and write-downs (90,459) — (90,459) Net book value $ 9,614 $ 79,893 $ 89,507 December 31, 2018 Cost $ 99,472 $ 73,213 $ 172,685 Accumulated depletion and write-downs (90,459) — (90,459) Net book value $ 9,013 $ 73,213 $ 82,226

Embedded Derivative Asset and_2

Embedded Derivative Asset and Silver Stream (Tables)	12 Months Ended
	Dec. 31, 2019
Embedded Derivative Asset and Silver Stream
Schedule of embedded derivative asset	December 31 December 31 2019 2018 Embedded derivative asset – Beginning of year $ 9,671 $ 6,600 Fair value adjustment 5,489 3,071 Embedded derivative asset – End of year $ 15,160 $ 9,671

Accounts payable and accrued _2

Accounts payable and accrued liabilities (Tables)	12 Months Ended
	Dec. 31, 2019
Accounts payable and accrued liabilities
Schedule of accounts payable and accrued liabilities	December 31 December 31 2019 2018 Trade payables $ 2,450 $ 3,567 Accrued liabilities and other 2,693 3,643 $ 5,143 $ 7,210

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2019
Leases
Schedule of right-of-use assets	December 31 2019 IFRS 16 adoption as at January 1, 2019 $ 1,883 Depreciation (533) $ 1,350
Schedule of lease liabilities	December 31 2019 IFRS 16 adoption as at January 1, 2019 $ 1,883 Cash flows: Principal payments (599) Non-cash changes: Accretion 162 Lease liability 1,446 Less : current portion 406 $ 1,040
Schedule of undiscounted lease payments	As at December 31, 2019, the Corporation’s undiscounted lease payments consisted of the following: December 31 2019 2020 $ 540 2021 332 2022 335 2023 321 2024 289 $ 1,817

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2019
Other Assets
Schedule of components of other assets	December 31 December 31 2019 2018 Equity investment in joint venture 1 $ 366 $ — Goodwill 550 Intangible assets 22 $ 938 $
Schedule of net investment in MNR and their financial statements	December 31 2019 Initial capital on equity investment $ 100 Additional capital to equity investment 266 $ 366 December 31 (expressed in thousands of Canadian dollars) 2019 Current assets: Cash $ 199 Work in progress 2,590 Other assets 374 Total current assets $ 3,163 Current liabilities Current payables and other liabilities $ 2,433 Equity 730 Total liabilities and shareholders’equity $ 3,163

Decommissioning and Rehabilit_2

Decommissioning and Rehabilitation Provision (Tables)	12 Months Ended
	Dec. 31, 2019
Decommissioning and Rehabilitation Provision
Schedule of decommissioning and rehabilitation provision	December 31 December 31 2019 2018 Balance – beginning of year $ 5,286 $ 5,055 Increase due to re-estimation 853 163 Accretion expense, included in finance costs 63 68 Balance – end of year $ 6,202 $ 5,286

Capital and Reserves (Tables)

Capital and Reserves (Tables)	12 Months Ended
	Dec. 31, 2019
Capital and reserves [Line Items]
Schedule of changes in incentive share options outstanding	The changes in incentive share options outstanding are summarized as follows: Weighted Number of average shares issued exercise or issuable on price exercise Amount Balance - December 31, 2018 $ 1.66 7,738,833 $ 5,469 Stock options granted 1 $ 1.93 4,053,900 — Share-based compensation expense — — 3,507 Options exercised $ 0.90 (852,500) (383) Options forfeited or expired $ 1.94 (475,000) (442) Balance - December 31, 2019 $ 1.81 10,465,233 $ 8,151 Balance - December 31, 2017 $ 2.06 6,546,666 $ 6,258 Stock options granted $ 2.07 2,524,000 — Share-based compensation expense — - 2,480 Options exercised $ 0.77 (281,666) (106) Options forfeited or expired $ 5.39 (1,050,167) (3,163) Balance - December 31, 2018 $ 1.66 7,738,833 $ 5,469 1. For 2019 the Corporation changed its date for its annual stock option grant from occurring in January of the following year to December of the current year, resulting in the 2019 calendar year having two annual grants.
Schedule of incentive share options outstanding and exercisable	Incentive share options outstanding and exercisable at December 31, 2019 are summarized as follows: Options Outstanding Options Exercisable Number of Number of Shares Average Average Shares Average Issuable on Remaining Exercise Issuable on Exercise Exercise Price Exercise Life (Years) Price Exercise Price $0.60 574,333 0.12 $ 0.60 574,333 $ 0.60 $0.84 1,180,000 1.12 $ 0.84 1,180,000 $ 0.84 $1.27 1,699,000 4.01 $ 1.27 849,500 $ 1.27 $1.27 325,000 2.01 $ 1.27 - $ 1.27 $1.73 500,000 1.44 $ 1.73 500,000 $ 1.73 $1.75 40,000 2.63 $ 1.75 40,000 $ 1.75 $1.76 50,000 4.24 $ 1.76 25,000 $ 1.76 $1.78 150,000 1.49 $ 1.78 150,000 $ 1.78 $1.93 60,000 3.36 $ 1.93 60,000 $ 1.93 $2.07 1,781,000 3.08 $ 2.07 1,781,000 $ 2.07 $2.07 587,000 3.08 $ 2.07 — $ 2.07 $2.32 1,544,000 2.09 $ 2.32 1,544,000 $ 2.32 $2.61 1,974,900 4.96 $ 2.61 658,300 $ 2.61 $ 1.81 $ 1.73
Restricted Share Units [Member]
Capital and reserves [Line Items]
Schedule of changes in share options outstanding	The changes in RSUs outstanding are summarized as follows: Number of shares issued or issuable on vesting Amount Balance - December 31, 2018 273,989 $ 371 RSUs granted 860,000 — Share-based compensation expense recognized — 963 RSUs vested (470,319) (840) Balance - December 31, 2019 663,670 $ 494 Balance - December 31, 2017 398,325 $ 401 RSUs granted 193,700 — Share-based compensation expense recognized — 467 RSUs vested (318,036) (497) Balance - December 31, 2018 273,989 $ 371 1. For 2019 the Corporation changed its date for its annual RSU grant from occurring in January of the following year to December of the current year, resulting in the 2019 calendar year having two annual grants.
Deferred Share Units [Member]
Capital and reserves [Line Items]
Schedule of changes in share options outstanding	The changes in DSUs outstanding are summarized as follows: Number of shares issued or issuable on vesting Amount Balance - December 31, 2018 — $ — DSUs granted 280,000 — Share-based compensation expense recognized — 731 DSUs vested (280,000) (731) Balance - December 31, 2019 — $ —

Revenue from Environmental Se_2

Revenue from Environmental Services (Tables)	12 Months Ended
	Dec. 31, 2019
Revenue from Environmental Services
Schedule of Environmental services revenue	The Corporation recorded environmental services revenue for the years ending December 31, 2019 and 2018 as follows: 2019 2018 Environmental services revenue Fee for service $ 20,463 $ 15,007 Fixed price agreements 8,743 4,873 $ 29,206 $ 19,880

General and Administrative Ex_2

General and Administrative Expenses by Nature of Expense (Tables)	12 Months Ended
	Dec. 31, 2019
General and Administrative Expenses by Nature of Expense
Schedule of General and Administrative Expenses by Nature of Expense	The Corporation recorded general and administrative expenses for the years ending December 31, 2019 and 2018 as follows: Corporate 2019 2018 General and administrative expenses Depreciation of property, plant and equipment $ 88 $ 94 Depreciation from ROU assets 211 — Amortization of intangible assets 10 11 Business development and investor relations 382 451 Office, operating and non-operating overheads 583 788 Professional 781 832 Regulatory 205 184 Restructuring costs — 92 Salaries and contractors 3,176 2,262 Share-based compensation 3,977 2,544 Travel 254 240 $ 9,667 $ 7,498 Environmental Services 1 2019 2018 General and administrative expenses Depreciation of property, plant and equipment $ 192 $ 126 Depreciation from ROU assets 318 — Amortization of intangible assets 37 39 Business development 547 370 Office, operating and non-operating overheads 1,750 1,262 Professional 395 142 Salaries and contractors 3,976 2,556 Travel 202 177 $ 7,417 1 $ 4,672 Total General and Administrative Expenses $ 17,084 $ 12,170 Note: The environmental services business, AEG, was sold on February 14, 2020. These expenses expenses will no longer be incurred by Alexco after February 14, 2020 (see Subsequent Events Note 31).

Mine Site Care and Maintenance

Mine Site Care and Maintenance (Tables)	12 Months Ended
	Dec. 31, 2019
Mine Site Care and Maintenance
Schedule of mine site care and maintenance expenses	The Corporation recorded mine site care and maintenance expenses for the years ended December 31, 2019 and 2018 as follows: 2019 2018 Mine site care and maintenance Depreciation of property, plant and equipment $ 1,244 $ 1,292 Salaries and contractors 1 288 913 Materials and equipment 1 143 346 Other expenses 1 387 52 $ 2,062 $ 2,603 1. Included in mine site care and maintenance costs are refurbishment and mill maintenance costs.

Other Income and expenses (Tabl

Other Income and expenses (Tables)	12 Months Ended
	Dec. 31, 2019
Other Income and expenses
Schedule of other income and expenses	The Corporation recorded other income and expenses for the years ended December 31, 2019 and 2018 as follows: 2019 2018 Credit Facility fee – warrants $ (389) $ (930) Interest on lease liabilities (162) — Interest income 164 241 Foreign exchange gain (loss) (41) (15) Other income (expenses) (83) (68) $ (511) $ (772)

Income Tax Expense (Tables)

Income Tax Expense (Tables)	12 Months Ended
	Dec. 31, 2019
Income Tax Expense
Schedule of major components of income tax expense	(a) The income tax provision differs from the amount that would result from applying the Canadian federal and provincial tax rate to income before taxes. These differences result from the following items: 2019 2018 Accounting loss before taxes $ (8,095) $ (6,994) Federal and provincial income tax rate of 27% (2018 – 27%) (2,186) (1,888) Non-deductible permanent differences 977 1,064 Differences in foreign exchange rates 41 — Effect of difference in tax rates — 2 Change in deferred tax asset not recognized 1,568 1,100 Flow-through share renunciation 442 1,656 Change in estimate (43) (427) Other 21 — 820 1,507 Income tax provision $ 820 $ 1,507
Schedule of movement in deferred tax assets and liabilities	2019 2018 Accounting loss before taxes $ (8,095) $ (6,994) Federal and provincial income tax rate of 27% (2018 – 27%) (2,186) (1,888) Non-deductible permanent differences 977 1,064 Differences in foreign exchange rates 41 — Effect of difference in tax rates — 2 Change in deferred tax asset not recognized 1,568 1,100 Flow-through share renunciation 442 1,656 Change in estimate (43) (427) Other 21 — 820 1,507 Income tax provision $ 820 $ 1,507 (a) The movement in deferred tax assets and liabilities during the year by type of temporary difference, without taking into consideration the offsetting balances within the same tax jurisdiction, is as follows: Mineral Property, Property Plant and Deferred tax liabilities Interest Inventory Equipment Other Total December 31, 2017 $ (2,873) $ (113) $ (1,464) $ (3,374) $ (7,824) (Charged) credit to the income statement (5,046) — (598) (2,930) (8,554) Charged to OCI — — — 20 20 December 31, 2018 $ (7,919) $ (113) $ (2,062) $ (6,284) $ (16,378) (Charged) credited to the income statement (2,117) — (32) (1,726) (3,875) Charged to OCI — — — (2) (2) December 31, 2019 $ (10,036) $ (113) $ (2,094) $ (8,012) $ (20,255) Mineral Loss Property, Decommissioning Property Carry Plant and and Rehabilitation Deferred tax assets Interest Forward Equipment Provision Other Total December 31, 2017 $ 839 $ 4,268 $ 77 $ 1,364 $ 661 $ 7,209 Credited (charged) to the income statement 3,632 2,997 (5) 63 (612) (6,075) December 31, 2018 $ 4,471 $ 7,265 $ 72 $ 1,427 $ 49 $ 13,284 Credited (charged) to the income statement 697 1,298 (20) 247 28 2,250 December 31, 2019 $ 5,168 $ 8,563 $ 52 $ 1,674 $ 77 $ 15,534 Net deferred tax liabilities December 31, 2018 $ (3,098) Charged to the income statement (1,625) Charged to OCI (2) December 31, 2019 $ (4,725)
Schedule of unrecognized tax attributes	December 31, 2018 $ (3,098) Charged to the income statement (1,625) Charged to OCI (2) December 31, 2019 $ (4,725) (a) At December 31, 2019, the Corporation has unrecognized tax attributes, noted below, that are available to offset future taxable income. The Corporation has not recognized the deferred tax asset on these temporary differences because they relate to entities within the group that have a history of losses and there is not yet adequately convincing evidence that these entities will generate sufficient future taxable income to enable offset. Tax loss carry forwards $ 50,363 Mineral property interest 8,242 Other 8,800 $ 67,405
Schedule of non-capital losses for income tax purposes	As at December 31, 2019, the Corporation has available non-capital losses for income tax purposes in Canada which are available to be carried forward to reduce taxable income in future years and for which no deferred income tax asset has been recognized, and which expire as follows: Total 2033 $ 1,838 2034 8,549 2035 6,685 2036 6,643 2037 8,302 2038 7,441 2039 10,905 $ 50,363

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of nature and extent of risks arising from financial instruments [line items]
Schedule of carrying amounts of the Corporation's financial assets and liabilities	Information regarding the carrying amounts of the Corporation’s financial assets and liabilities is summarized as follows: Fair Value Hierarchy December 31 December 31 Classification 2019 2018 Fair value through profit or loss Warrants Level 2 $ 40 $ 24 Embedded derivative - Wheaton agreement Level 3 $ 15,160 $ 9,671 Fair value through other comprehensive loss Investment in marketable securities Level 1 $ 1,289 $ 736 $ 16,489 $ 10,431
Schedule of corporation's maximum exposure to credit risk at the balance sheet date under its financial instruments	Credit risk is the risk of financial loss to the Corporation if a customer or counterparty to a financial instrument fails to meet its obligations. The Corporation’s maximum exposure to credit risk at the balance sheet date under its financial instruments is summarized as follows: December 31 December 31 2019 2018 Trade receivables Currently due $ 5,229 $ 5,228 Past due by 90 days or less, not impaired 1,082 1,375 Past due by greater than 90 days, not impaired 61 86 6,372 6,689 Cash 6,313 3,629 Demand deposits 528 4,947 Term deposits 2,777 2,725 $ 15,990 $ 17,990
Schedule of the contractual maturities at the balance sheet date	The Corporation’s financial liabilities are comprised of its accounts payable and accrued liabilities, the contractual maturities of which at the balance sheet date are summarized as follows: December 31 December 31 2019 2018 Accounts payable and accrued liabilities with contractual maturities Within 90 days or less $ 5,143 $ 7,210 In later than 90 days, not later than one year — — $ 5,143 $ 7,210
Currency risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Schedule of risk exposure	The Corporation is exposed to currency risk at the balance sheet date through the following financial assets and liabilities, which are denominated in US dollars: December 31 December 31 2019 2018 Cash and cash equivalents $ 588 $ 1,374 Accounts and other receivable 1,282 917 Accounts payable and accrued liabilities (925) (649) Net exposure $ 945 $ 1,642
Commodity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Schedule of risk exposure	December 31 December 31 2019 2018 Embedded derivative asset $ 15,160 $ 9,671 Total exposure $ 15,160 $ 9,671

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	12 Months Ended
	Dec. 31, 2019
Supplemental Cash Flow Information
Schedule of supplemental cash flow information	Supplemental cash flow information with respect to the year ended December 31, 2019 and 2018 is summarized as follows: 2019 2018 Operating Cash Flows Arising From Interest and Taxes Interest received $ 140 $ 129 Non-Cash Investing and Financing Transactions Capitalization of share-based compensation to mineral properties $ 395 $ 368 Capitalization of depreciation to mineral properties $ 325 $ 375 Capitalization of re-estimation of decommissioning and rehabilitation provision $ 853 $ 163 Share issuance costs (non-cash) $ 104 $ — Increase in non-cash working capital related to: Mineral properties $ 505 $ 311

Segmented Information (Tables)

Segmented Information (Tables)	12 Months Ended
	Dec. 31, 2019
Segmented Information
Schedule of segmented information	Segmented information as at and for the year ended December 31, 2019 and 2018 is summarized as follows: As at and for the year ended Environmental Corporate and December 31, 2019 Services Mining Other Total Segment revenues External customers Canadian $ 20,076 $ — $ — $ 20,076 Non-Canadian 9,130 — — 9,130 Total revenues as reported 29,206 — — 29,206 Cost of sales 23,130 — — 23,130 Depreciation and amortization 548 1,244 307 2,099 Share-based compensation — — 3,977 3,977 Other G&A expenses 6,871 69 5,314 12,254 Mine site care and maintenance — 818 — 818 Foreign exchange (gain) loss 5 (5) 41 41 Loss on investments — 1 2 3 Loss on equity investments — — — — Gain on derivative asset — (5,489) — (5,489) Other (income) loss 57 78 333 468 Segment income (loss) before taxes $ (1,405) $ 3,284 $ (9,974) $ (8,095) (i) Total assets $ 9,509 $ 125,878 $ 9,966 $ 145,353 Total liabilities $ 2,898 $ 12,426 $ 3,359 $ 18,683 As at and for year ended Environmental Corporate and December 31, 2018 Services Mining Other Total Segment revenues External customers Canadian $ 13,105 $ — $ — $ 13,105 Non-Canadian 6,775 — — 6,775 Total revenues as reported 19,880 — — 19,880 Cost of sales 13,828 — — 13,828 Depreciation and amortization 165 1,292 105 1,562 Share-based compensation — — 2,544 2,544 Other G&A expenses 4,507 86 5,701 10,294 Mine site care and maintenance — 1,311 — 1,311 Foreign exchange (gain) loss 35 9 (29) 15 Loss on investments 113 459 572 Gain on derivative asset — (3,071) — (3,071) Other (income) loss (8) 68 (241) (181) Segment income (loss) before taxes $ 1,353 $ 192 $ (8,539) $ (6,994) (i) Total assets $ 11,462 $ 113,341 $ 8,215 $ 133,018 Total liabilities $ 4,116 $ 10,284 $ 1,988 $ 16,388 (i) Represents consolidated loss before taxes.

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2019
Related Party Transactions
Schedule of key management personnel compensation	The Corporation’s related parties include its subsidiaries and key management personnel. Key management includes the Corporation's Board of Directors and members of senior management. Key management compensation for the years ended December 31, 2019 and 2018 was as follows: 2019 2018 Salaries and other short-term benefits $ 2,614 $ 2,130 Share-based compensation 2,990 2,513 $ 5,604 $ 4,643

Description of Business and N_2

Description of Business and Nature of Operations (Details)	12 Months Ended
	Dec. 31, 2019USD ($)
Description of Business and Nature of Operations
Number of principal businesses	2

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Property, Plant and Equipment and Impairment (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019CAD ($)
Disclosure of significant accounting policies [Line Items]
Impairment loss on asset or cash generating unit	$ 0
Heavy machinery and equipment [Member]
Disclosure of significant accounting policies [Line Items]
Useful life measured as period of time, property, plant and equipment	5 years
Land and buildings [member]
Disclosure of significant accounting policies [Line Items]
Useful life measured as period of time, property, plant and equipment	20 years
Leasehold Improvements [Member] | Maximum [Member]
Disclosure of significant accounting policies [Line Items]
Useful life measured as period of time, property, plant and equipment	5 years
Leasehold Improvements [Member] | Minimum [Member]
Disclosure of significant accounting policies [Line Items]
Useful life measured as period of time, property, plant and equipment	2 years
Roads, Camp and other site infrastructure [Member] | Maximum [Member]
Disclosure of significant accounting policies [Line Items]
Useful life measured as period of time, property, plant and equipment	10 years
Roads, Camp and other site infrastructure [Member] | Minimum [Member]
Disclosure of significant accounting policies [Line Items]
Useful life measured as period of time, property, plant and equipment	5 years
Ore-processing mill components [Member] | Maximum [Member]
Disclosure of significant accounting policies [Line Items]
Useful life measured as period of time, property, plant and equipment	30 years
Ore-processing mill components [Member] | Minimum [Member]
Disclosure of significant accounting policies [Line Items]
Useful life measured as period of time, property, plant and equipment	5 years

New Accounting Standards (Detai

New Accounting Standards (Details) - CAD ($)	Dec. 31, 2019	Jan. 01, 2019
Disclosure of initial application of standards or interpretations [line items]
Lease liability as of January 1,2019	$ 1,446,000	$ 1,883,000
Increase Decrease Due To Application Of Ifrs 16 [Member]
Disclosure of initial application of standards or interpretations [line items]
Lease commitments as at December 31, 2018	1,440,000
Less: Short-term commitments	(50,000)
Add: Operating lease obligations on adoption of IFRS 16	1,048,000
Lease Commitments after adjustments	2,438,000
Impact of discounting	(555,000)
Lease liability as of January 1,2019	$ 1,883,000

New Accounting Standards - Addi

New Accounting Standards - Additional Information (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019
New Accounting Standards
Right-of-use assets	$ 1,350,000	$ 1,883,000
Lease liabilities	1,446,000	$ 1,883,000
Minimum amount of underlying asset for accounting lease payments as an expense	$ 5,000

Cash and Cash Equivalents (Deta

Cash and Cash Equivalents (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash and Cash Equivalents
Cash at bank and on hand	$ 6,313	$ 3,629
Short-term bank deposits	528	4,947
Cash and cash equivalents	$ 6,841	$ 8,576	$ 17,906

Accounts and Other Receivable_2

Accounts and Other Receivables (Details) - CAD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Accounts and Other Receivables
Trade receivables	[1]	$ 6,372	$ 6,689
Interest and other		162	122
Accounts and other receivables		$ 6,534	$ 6,811
[1]	Trade receivables are derived primarily from the environmental consulting business (AEG)

Restricted Cash and Deposits (D

Restricted Cash and Deposits (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Restricted Cash and Deposits
Security for decommissioning obligations	$ 2,611	$ 2,569
Other	166	156
Non-current restricted cash and cash equivalents	$ 2,777	$ 2,725

Restricted Cash and Deposits -

Restricted Cash and Deposits - Additional Information (Details)	Dec. 31, 2019CAD ($)
Restricted Cash and Deposits
Amount of increase in the security	$ 392,000

Investments (Details)

Investments (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Investments [Line Items]
Investments other than investments accounted for using equity method	$ 1,329	$ 760
Current investments	405	351
Non-current investments other than investments accounted for using equity method	924	409
Common shares held [member]
Disclosure of Investments [Line Items]
Investments other than investments accounted for using equity method	1,289	736
Warrant Held [Member]
Disclosure of Investments [Line Items]
Investments other than investments accounted for using equity method	$ 40	$ 24

Investments - Additional Inform

Investments - Additional Information (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Jun. 07, 2019	Apr. 23, 2019
Disclosure of Investments [Line Items]
Number of shares issued			6,500,000	1,842,200
Gains (losses) recognised in profit or loss, fair value measurement, assets	$ 547,000	$ 798,000
Golden Predator Mining Corp [Member]
Disclosure of Investments [Line Items]
Number of shares issued	995,500	1,320,500
Banyan Gold corp [Member]
Disclosure of Investments [Line Items]
Number of shares issued	11,136,644	8,736,644
Warrants [Member]
Disclosure of Investments [Line Items]
Losses on disposals of investments	$ 3,000	$ 572,000
Warrants [Member] | Golden Predator Mining Corp [Member]
Disclosure of Investments [Line Items]
Weighted average exercise price of other equity instruments exercisable in share-based payment arrangement	$ 1
Number of shares issued	300,000	300,000
Warrants [Member] | Banyan Gold corp [Member]
Disclosure of Investments [Line Items]
Number of shares issued	2,780,822	6,155,822
Warrants [Member] | Banyan Gold corp [Member] | Bottom of range [member]
Disclosure of Investments [Line Items]
Weighted average exercise price of other equity instruments exercisable in share-based payment arrangement	$ 0.15
Warrants [Member] | Banyan Gold corp [Member] | Top of range [member]
Disclosure of Investments [Line Items]
Weighted average exercise price of other equity instruments exercisable in share-based payment arrangement	$ 0.09

Inventories (Details)

Inventories (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Inventories
Ore in stockpiles and mill supplies	$ 4,647	$ 4,699
Materials and supplies	920	818
Inventory	5,567	5,517
Less: current portion	1,285	818
Non-current inventories	$ 4,282	$ 4,699

Property, Plant and Equipment_2

Property, Plant and Equipment (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	$ 15,233,000
Depreciation, property, plant and equipment	1,972,000	$ 2,339,000
Property, plant and equipment, Ending Balance	16,048,000	15,233,000
Cost [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	40,927,000
Additions other than through business combinations, property, plant and equipment	1,015,000
Increase (decrease) through other changes, property, plant and equipment	422,000
Property, plant and equipment, Ending Balance	42,364,000	40,927,000
Accumulated depreciation [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	25,694,000
Depreciation, property, plant and equipment	1,972,000
Property, plant and equipment, Ending Balance	27,666,000	25,694,000
Net book value [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	15,233,000
Property, plant and equipment, Ending Balance	14,698,000	15,233,000
Land and buildings [member] | Cost [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	1,709,000
Additions other than through business combinations, property, plant and equipment	0
Increase (decrease) through other changes, property, plant and equipment	0
Property, plant and equipment, Ending Balance	1,709,000	1,709,000
Land and buildings [member] | Accumulated depreciation [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	429,000
Depreciation, property, plant and equipment	78,000
Property, plant and equipment, Ending Balance	507,000	429,000
Land and buildings [member] | Net book value [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	1,280,000
Property, plant and equipment, Ending Balance	1,202,000	1,280,000
Roads, Camp and other site infrastructure [Member] | Cost [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	5,569,000
Additions other than through business combinations, property, plant and equipment	15,000
Increase (decrease) through other changes, property, plant and equipment	0
Property, plant and equipment, Ending Balance	5,584,000	5,569,000
Roads, Camp and other site infrastructure [Member] | Accumulated depreciation [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	4,869,000
Depreciation, property, plant and equipment	153,000
Property, plant and equipment, Ending Balance	5,022,000	4,869,000
Roads, Camp and other site infrastructure [Member] | Net book value [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	700,000
Property, plant and equipment, Ending Balance	562,000	700,000
Ore-processing mill components [Member] | Cost [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	22,834,000
Additions other than through business combinations, property, plant and equipment	0
Increase (decrease) through other changes, property, plant and equipment	422,000
Property, plant and equipment, Ending Balance	23,256,000	22,834,000
Ore-processing mill components [Member] | Accumulated depreciation [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	11,448,000
Depreciation, property, plant and equipment	1,172,000
Property, plant and equipment, Ending Balance	12,620,000	11,448,000
Ore-processing mill components [Member] | Net book value [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	11,386,000
Property, plant and equipment, Ending Balance	10,636,000	11,386,000
Heavy machinery and equipment [Member] | Cost [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	9,312,000
Additions other than through business combinations, property, plant and equipment	1,000,000
Increase (decrease) through other changes, property, plant and equipment	0
Property, plant and equipment, Ending Balance	10,312,000	9,312,000
Heavy machinery and equipment [Member] | Accumulated depreciation [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	7,533,000
Depreciation, property, plant and equipment	528,000
Property, plant and equipment, Ending Balance	8,061,000	7,533,000
Heavy machinery and equipment [Member] | Net book value [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	1,779,000
Property, plant and equipment, Ending Balance	2,251,000	1,779,000
Leasehold Improvements [Member] | Cost [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	1,503,000
Additions other than through business combinations, property, plant and equipment	0
Increase (decrease) through other changes, property, plant and equipment	0
Property, plant and equipment, Ending Balance	1,503,000	1,503,000
Leasehold Improvements [Member] | Accumulated depreciation [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	1,415,000
Depreciation, property, plant and equipment	41,000
Property, plant and equipment, Ending Balance	1,456,000	1,415,000
Leasehold Improvements [Member] | Net book value [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, Beginning Balance	88,000
Property, plant and equipment, Ending Balance	$ 47,000	$ 88,000

Property, Plant and Equipment -

Property, Plant and Equipment - Additional Information (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2019
Disclosure of detailed information about property, plant and equipment [line items]
Right-of-use assets	$ 1,350,000		$ 1,883,000
Depreciation, property, plant and equipment	1,972,000	$ 2,339,000
Depreciation expense	1,647,000	1,964,000
Mining property [member]
Disclosure of detailed information about property, plant and equipment [line items]
Depreciation, property, plant and equipment	325,000	375,000
Cost of Saless [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Depreciation expense	79,000	85,000
General Expenses And Site Maintenance [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Depreciation expense	$ 1,568,000	$ 1,879,000

Mineral Properties (Details)

Mineral Properties (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of mineral properties [Line Items]
Mineral Properties, Beginning Balance	$ 82,226	$ 64,587
Mineral Properties, Expenditures Incurred	7,281	17,639
Mineral Properties, Ending Balance	89,507	82,226
Bellekeno [Member] | Mining property [member]
Disclosure of mineral properties [Line Items]
Mineral Properties, Beginning Balance	7,123	6,885
Mineral Properties, Expenditures Incurred	443	238
Mineral Properties, Ending Balance	7,566	7,123
Lucky Queen [Member] | Mining property [member]
Disclosure of mineral properties [Line Items]
Mineral Properties, Beginning Balance	824	693
Mineral Properties, Expenditures Incurred	117	131
Mineral Properties, Ending Balance	941	824
Onek [Member] | Mining property [member]
Disclosure of mineral properties [Line Items]
Mineral Properties, Beginning Balance	1,065	1,034
Mineral Properties, Expenditures Incurred	40	31
Mineral Properties, Ending Balance	1,105	1,065
McQuesten [Member] | Mining property [member]
Disclosure of mineral properties [Line Items]
Mineral Properties, Beginning Balance	1,997	1,997
Mineral Properties, Expenditures Incurred	0	0
Mineral Properties, Ending Balance	1,997	1,997
Silver King [Member] | Mining property [member]
Disclosure of mineral properties [Line Items]
Mineral Properties, Beginning Balance	4,464	4,464
Mineral Properties, Expenditures Incurred	0	0
Mineral Properties, Ending Balance	4,464	4,464
Flame And Moth [Member] | Mining property [member]
Disclosure of mineral properties [Line Items]
Mineral Properties, Beginning Balance	28,311	22,455
Mineral Properties, Expenditures Incurred	593	5,856
Mineral Properties, Ending Balance	28,904	28,311
Bermingham [Member] | Mining property [member]
Disclosure of mineral properties [Line Items]
Mineral Properties, Beginning Balance	32,084	23,376
Mineral Properties, Expenditures Incurred	4,189	8,708
Mineral Properties, Ending Balance	36,273	32,084
Elsa Tailings [Member] | Mining property [member]
Disclosure of mineral properties [Line Items]
Mineral Properties, Beginning Balance	884	884
Mineral Properties, Expenditures Incurred	0	0
Mineral Properties, Ending Balance	884	884
Other Keno Hill Properties [Member] | Mining property [member]
Disclosure of mineral properties [Line Items]
Mineral Properties, Beginning Balance	5,474	2,799
Mineral Properties, Expenditures Incurred	1,899	2,675
Mineral Properties, Ending Balance	$ 7,373	$ 5,474

Mineral Properties -Net Book va

Mineral Properties -Net Book value (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of mineral properties [Line Items]
Accumulated depletion and write-downs		$ (90,459)
Assets arising from exploration for and evaluation of mineral resources	$ 89,507	82,226	$ 64,587
Cost [member]
Disclosure of mineral properties [Line Items]
Assets arising from exploration for and evaluation of mineral resources	179,966	172,685
Accumulated depreciation [member]
Disclosure of mineral properties [Line Items]
Accumulated depletion and write-downs	(90,459)
Exploration and Evaluation Properties [Member]
Disclosure of mineral properties [Line Items]
Assets arising from exploration for and evaluation of mineral resources	79,893	73,213
Exploration and Evaluation Properties [Member] | Cost [member]
Disclosure of mineral properties [Line Items]
Assets arising from exploration for and evaluation of mineral resources	79,893	73,213
Exploration and Evaluation Properties [Member] | Accumulated depreciation [member]
Disclosure of mineral properties [Line Items]
Accumulated depletion and write-downs	0	0
Mining Operations Properties [Member]
Disclosure of mineral properties [Line Items]
Assets arising from exploration for and evaluation of mineral resources	9,614	9,013
Mining Operations Properties [Member] | Cost [member]
Disclosure of mineral properties [Line Items]
Assets arising from exploration for and evaluation of mineral resources	100,073	99,472
Mining Operations Properties [Member] | Accumulated depreciation [member]
Disclosure of mineral properties [Line Items]
Accumulated depletion and write-downs	$ (90,459)	$ (90,459)

Mineral Properties - Additional

Mineral Properties - Additional Information (Details) - CAD ($)	1 Months Ended	12 Months Ended
	May 24, 2017	Dec. 31, 2019	Dec. 31, 2018
Disclosure of mineral properties [Line Items]
Percentage Of Mineral Property Ownership Acquisition	100.00%
Percentage of ownership interest in property offerred	100.00%
Expense arising from exploration for and evaluation of mineral resources		$ 7,281,000	$ 17,639,000
McQuesten [Member] | Banyan Gold corp [Member]
Disclosure of mineral properties [Line Items]
Smelter Return Royalty Percentage	6.00%
Expense arising from exploration for and evaluation of mineral resources		$ 1,471,000
Consideration receivable in the form of shares	1,600,000	1,200,000
Total consideration receivable in cash or shares	$ 2,600,000
Value of treasury stock investment	$ 7,000,000
McQuesten [Member] | Banyan Gold corp [Member] | Silver [Member]
Disclosure of mineral properties [Line Items]
Smelter Return Royalty Percentage	3.00%
McQuesten [Member] | Banyan Gold corp [Member] | IFRS Gold [Member]
Disclosure of mineral properties [Line Items]
Smelter Return Royalty Percentage	1.00%
Top of range [member] | Other Keno Hill Properties [Member]
Disclosure of mineral properties [Line Items]
Royalty Expense		$ 4,000,000
Bottom of range [member] | McQuesten [Member] | Banyan Gold corp [Member]
Disclosure of mineral properties [Line Items]
Expense arising from exploration for and evaluation of mineral resources	$ 2,600,000
Ukhm Mineral Rights [Member]
Disclosure of mineral properties [Line Items]
Smelter Return Royalty Percentage		1.50%
Royalty Expenses Paid		$ 40,000
Ukhm Mineral Rights [Member] | Top of range [member]
Disclosure of mineral properties [Line Items]
Royalty Expense		4,000,000
Income arising from exploration for and evaluation of mineral resources		$ 6,200,000
Non-Ukhm Mineral Rights [Member] | McQuesten [Member]
Disclosure of mineral properties [Line Items]
Smelter Return Royalty Percentage		2.00%
Non-Ukhm Mineral Rights [Member] | Top of range [member]
Disclosure of mineral properties [Line Items]
Smelter Return Royalty Percentage		2.00%
Non-Ukhm Mineral Rights [Member] | Top of range [member] | Other Keno Hill Properties [Member]
Disclosure of mineral properties [Line Items]
Smelter Return Royalty Percentage		1.50%
Non-Ukhm Mineral Rights [Member] | Bottom of range [member]
Disclosure of mineral properties [Line Items]
Smelter Return Royalty Percentage		0.50%
Non-Ukhm Mineral Rights [Member] | Bottom of range [member] | Other Keno Hill Properties [Member]
Disclosure of mineral properties [Line Items]
Smelter Return Royalty Percentage		1.00%

Embedded Derivative Asset and_3

Embedded Derivative Asset and Silver Stream (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Embedded Derivative Asset and Silver Stream
Embedded derivative asset - Beginning of year	$ 9,671	$ 6,600
Fair value adjustment	5,489	3,071
Embedded derivative asset - End of year	$ 15,160	$ 9,671

Embedded Derivative Asset and_4

Embedded Derivative Asset and Silver Stream - Additional Information (Details)	Oct. 02, 2008USD ($)	Mar. 29, 2017USD ($)t$ / ozshares	Mar. 29, 2017CAD ($)shares	Dec. 31, 2019$ / oz
Disclosure of non-adjusting events after reporting period [line items]
Percentage of Life of Mine Silver	25.00%	25.00%
Proceeds From Up-front Deposit Payments	$ 50,000,000
Proceeds From Further Up-front Deposit Payments	$ 3.90
Silver Purchase Agreement, initial Term	40 years
Number Of Shares Issued as a consideration to wheaton | shares		3,000,000	3,000,000
Value Of Shares Issued as a consideration to wheaton		$ 4,934,948	$ 6,600,000
Up front deposit amount		50,000,000
Percentage Of Interest Representing Future Production				25.00%
Production payment per ounce | $ / oz				3.90
Repayment Of Original Deposit		$ 50,000,000
Events Occurred After Reporting Period [Member]
Disclosure of non-adjusting events after reporting period [line items]
Mine and mill Completion per day | t		400
Reduction of mill throughput per day | t		322
Obligation to pay capacity related refund		$ 8,788,000
Bottom of range [member] | Events Occurred After Reporting Period [Member]
Disclosure of non-adjusting events after reporting period [line items]
Actual monthly production payment,upper ceiling grade		600 g/t	600 g/t
Price of silver | $ / oz		13
Top of range [member] | Events Occurred After Reporting Period [Member]
Disclosure of non-adjusting events after reporting period [line items]
Actual monthly production payment,upper ceiling grade		1,400 grams per tonne (“g/t”)	1,400 grams per tonne (“g/t”)
Price of silver | $ / oz		25

Accounts payable and accrued _3

Accounts payable and accrued liabilities (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accounts payable and accrued liabilities
Trade payables	$ 2,450	$ 3,567
Accrued liabilities and other	2,693	3,643
Accounts payable and accrued liabilities	$ 5,143	$ 7,210

Leases - Right-of-use assets an

Leases - Right-of-use assets and Lease liabilities (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Right-of-use assets
IFRS 16 adoption	$ 1,883,000
Depreciation	(533,000)
Right-of-use assets	1,350,000	$ 1,883,000
Lease liabilities
IFRS 16 adoption	1,883,000
Cash flows: Principal payments	(599,000)
Non-cash changes: Accretion	162,000
Lease liability	1,446,000	$ 1,883,000
Less : current portion	406,000		$ 0
Lease liability, net of current portion	$ 1,040,000		$ 0

Leases - Undiscounted lease pay

Leases - Undiscounted lease payments (Details) $ in Thousands	Dec. 31, 2019CAD ($)
Disclosure of maturity analysis of operating lease payments [line items]
Undiscounted lease payments	$ 1,817
2020
Disclosure of maturity analysis of operating lease payments [line items]
Undiscounted lease payments	540
2021
Disclosure of maturity analysis of operating lease payments [line items]
Undiscounted lease payments	332
2022
Disclosure of maturity analysis of operating lease payments [line items]
Undiscounted lease payments	335
2023
Disclosure of maturity analysis of operating lease payments [line items]
Undiscounted lease payments	321
2024
Disclosure of maturity analysis of operating lease payments [line items]
Undiscounted lease payments	$ 289

Other Assets - Components of ot

Other Assets - Components of other assets (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Other Assets
Equity investment in joint venture	$ 366
Goodwill	550	$ 550
Intangible assets	22	71
Total	$ 938	$ 621

Other Assets - Equity investmen

Other Assets - Equity investment in joint venture (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of joint ventures [line items]
Total	$ 366
Current assets:
Cash	6,313	$ 3,629
Current assets	15,717	17,434
Current liabilities [abstract]
Current liabilities	6,716	8,004
Equity	126,670	116,630	$ 112,456
Total Liabilities and Shareholders' Equity	145,353	$ 133,018
MNR
Disclosure of joint ventures [line items]
Initial capital on equity investment	100
Additional capital to equity investment	266
Total	366
Current assets:
Cash	199
Work in progress	2,590
Other assets	374
Current assets	3,163
Current liabilities [abstract]
Current liabilities	2,433
Equity	730
Total Liabilities and Shareholders' Equity	$ 3,163

Other Assets - Additional Infor

Other Assets - Additional Information (Details) - item	May 06, 2019	Dec. 31, 2019
Disclosure of joint ventures [line items]
Number of new separate joint arrangements entered in to		2
Percentage of future profits or proceeds from the potential sale of water treatment system payable to joint partner under the Wolverine Project		25.00%
MNR
Disclosure of joint ventures [line items]
Percentage of ownership interest in Joint venture	50.00%
MNR | JDS Energy and Mining Inc.
Disclosure of joint ventures [line items]
Percentage of ownership interest in Joint venture	50.00%

Credit Facility (Details)

Credit Facility (Details) - Loans to corporate entities [member]	Apr. 30, 2019USD ($)	Apr. 30, 2019CAD ($)
Disclosure of detailed information about borrowings [line items]
Notional amount	$ 4,000,000
Borrowings, interest rate	5.70%	5.70%
Borrowings		$ 1,000,000

Decommissioning and Rehabilit_3

Decommissioning and Rehabilitation Provision (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Decommissioning and Rehabilitation Provision
Balance - beginning of year	$ 5,286	$ 5,055
Increase due to re-estimation	853	163
Accretion expense, included in finance costs	63	68
Balance - end of year	$ 6,202	$ 5,286

Decommissioning and Rehabilit_4

Decommissioning and Rehabilitation Provision - Additional Information (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Decommissioning and Rehabilitation Provision
Discount rate used in current estimate of value in use	1.65%	2.08%
Actuarial assumption of expected rates of inflation	2.00%	2.00%
Non-current provision for decommissioning, restoration and rehabilitation costs	$ 7,464,000	$ 6,561,000
Expenditures to be incurred over certain years	20 years
Provision for decommissioning, restoration and rehabilitation costs	$ 6,202,000	$ 5,286,000	$ 5,055,000

Capital and Reserves - Incentiv

Capital and Reserves - Incentive share options outstanding (Details)	12 Months Ended
	Dec. 31, 2019$ / shares	Dec. 31, 2019USD ($)	Dec. 31, 2019item	Dec. 31, 2019CAD ($)	Dec. 31, 2018CAD ($)USD ($)$ / shares
Capital and reserves [Line Items]
Weighted average exercise price - Balance Ending | $ / shares	$ 1.81
Number of shares issued or issuable on exercise - Options exercised (in shares) | item			852,500
Number of shares issued or issuable on exercise - Balance End (in shares)		10,465,233	10,465,233
Balance - Share based compensation expense				$ 2,776,000	$ 2,480,000
Incentive Stock Options [Member]
Capital and reserves [Line Items]
Weighted average exercise price - Balance Opening | $ / shares	1.66				$ 2.06
Weighted average exercise price - stock options granted | $ / shares	1.93				2.07
Weighted average exercise price - options exercised | $ / shares	0.90				0.77
Weighted average exercise price - options forfeited or expired | $ / shares	1.94				5.39
Weighted average exercise price - Balance Ending | $ / shares	$ 1.81				$ 1.66
Number of shares issued or issuable on exercise - Balance Opening (in shares)		7,738,833			6,546,666
Number of shares issued or issuable on exercise - Stock options granted (in shares)		4,053,900			2,524,000
Number of shares issued or issuable on exercise - Options exercised (in shares)		852,500			281,666
Number of shares issued or issuable on exercise - Options forfeited or expired (in shares)		475,000			1,050,167
Number of shares issued or issuable on exercise - Balance End (in shares)		10,465,233			7,738,833
Opening Balance				5,469,000	$ 6,258,000
Balance - Stock options granted				0	0
Balance - Share based compensation expense				3,507,000	2,480,000
Balance - Options exercised				(383,000)	(106,000)
Balance - Options forfeited or expired				(442,000)	(3,163,000)
Ending Balance				$ 8,151,000	$ 5,469,000

Capital and Reserves - Incent_2

Capital and Reserves - Incentive share options outstanding and exercisable (Details) - 12 months ended Dec. 31, 2019	$ / shares	USD ($)	item
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise		10,465,233	10,465,233
Options Outstanding, Average Remaining Life (Years)	2 years 11 months 5 days
Options Outstanding, Average Exercise Price	$ 1.81
Options Exercisable, Number of Shares Issuable on Exercise | $		7,362,133
Options Exercisable, Average Exercise Price	$ 1.73
Exercise Price - 0.60 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		574,333
Options Outstanding, Average Remaining Life (Years)	1 month 13 days
Options Outstanding, Average Exercise Price	$ 0.60
Options Exercisable, Number of Shares Issuable on Exercise | $		574,333
Options Exercisable, Average Exercise Price	$ 0.60
Exercise Price - $0.84 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		1,180,000
Options Outstanding, Average Remaining Life (Years)	1 year 1 month 13 days
Options Outstanding, Average Exercise Price	$ 0.84
Options Exercisable, Number of Shares Issuable on Exercise | $		1,180,000
Options Exercisable, Average Exercise Price	$ 0.84
Exercise Price - $1.27 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		1,699,000
Options Outstanding, Average Remaining Life (Years)	4 years 4 days
Options Outstanding, Average Exercise Price	$ 1.27
Options Exercisable, Number of Shares Issuable on Exercise | $		849,500
Options Exercisable, Average Exercise Price	$ 1.27
Exercise Price - $1.27 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		325,000
Options Outstanding, Average Remaining Life (Years)	2 years 4 days
Options Outstanding, Average Exercise Price	$ 1.27
Options Exercisable, Number of Shares Issuable on Exercise | $		0
Options Exercisable, Average Exercise Price	$ 1.27
Exercise Price - $1.73 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		500,000
Options Outstanding, Average Remaining Life (Years)	1 year 5 months 9 days
Options Outstanding, Average Exercise Price	$ 1.73
Options Exercisable, Number of Shares Issuable on Exercise | $		500,000
Options Exercisable, Average Exercise Price	$ 1.73
Exercise Price - $1.75 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		40,000
Options Outstanding, Average Remaining Life (Years)	2 years 7 months 17 days
Options Outstanding, Average Exercise Price	$ 1.75
Options Exercisable, Number of Shares Issuable on Exercise | $		40,000
Options Exercisable, Average Exercise Price	$ 1.75
Exercise Price - $1.76 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		50,000
Options Outstanding, Average Remaining Life (Years)	4 years 2 months 27 days
Options Outstanding, Average Exercise Price	$ 1.76
Options Exercisable, Number of Shares Issuable on Exercise | $		25,000
Options Exercisable, Average Exercise Price	$ 1.76
Exercise Price - $1.78 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		150,000
Options Outstanding, Average Remaining Life (Years)	1 year 5 months 27 days
Options Outstanding, Average Exercise Price	$ 1.78
Options Exercisable, Number of Shares Issuable on Exercise | $		150,000
Options Exercisable, Average Exercise Price	$ 1.78
Exercise Price - $1.93 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		60,000
Options Outstanding, Average Remaining Life (Years)	3 years 4 months 10 days
Options Outstanding, Average Exercise Price	$ 1.93
Options Exercisable, Number of Shares Issuable on Exercise | $		60,000
Options Exercisable, Average Exercise Price	$ 1.93
Exercise Price - $2.07 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		1,781,000
Options Outstanding, Average Remaining Life (Years)	3 years 29 days
Options Outstanding, Average Exercise Price	$ 2.07
Options Exercisable, Number of Shares Issuable on Exercise | $		1,781,000
Options Exercisable, Average Exercise Price	$ 2.07
Exercise Price - $2.07 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		587,000
Options Outstanding, Average Remaining Life (Years)	3 years 29 days
Options Outstanding, Average Exercise Price	$ 2.07
Options Exercisable, Number of Shares Issuable on Exercise | $		0
Options Exercisable, Average Exercise Price	$ 2.07
Exercise Price - $2.32 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		1,544,000
Options Outstanding, Average Remaining Life (Years)	2 years 1 month 2 days
Options Outstanding, Average Exercise Price	$ 2.32
Options Exercisable, Number of Shares Issuable on Exercise | $		1,544,000
Options Exercisable, Average Exercise Price	$ 2.32
Exercise Price - $2.61 [Member]
Capital and reserves [Line Items]
Options Outstanding, Number of Shares Issuable on Exercise | $		1,974,900
Options Outstanding, Average Remaining Life (Years)	4 years 11 months 16 days
Options Outstanding, Average Exercise Price	$ 2.61
Options Exercisable, Number of Shares Issuable on Exercise | $		658,300
Options Exercisable, Average Exercise Price	$ 2.61

Capital and Reserves - Changes

Capital and Reserves - Changes in RSUs outstanding (Details)	12 Months Ended
	Dec. 31, 2019CAD ($)item	Dec. 31, 2018CAD ($)item
Capital and reserves [Line Items]
Share-based compensation expense recognized	$ 2,776,000	$ 2,480,000
Restricted Share Units [Member]
Capital and reserves [Line Items]
Balance at December 31, 2018 | item	273,989	398,325
granted | item	860,000	193,700
vested | item	(470,319)	(318,036)
Balance at December 31, 2019 | item	663,670	273,989
Opening Balance	$ 371,000	$ 401,000
granted	0	0
Share-based compensation expense recognized	963,000	467,000
vested	(840,000)	(497,000)
Ending Balance	$ 494,000	$ 371,000
Deferred Share Units [Member]
Capital and reserves [Line Items]
Balance at December 31, 2018 | item	0
granted | item	280,000
vested | item	(280,000)
Balance at December 31, 2019 | item	0	0
Opening Balance	$ 0
granted	0
Share-based compensation expense recognized	731,000
vested	(731,000)
Ending Balance	$ 0	$ 0

Capital and Reserves - Addition

Capital and Reserves - Additional Information (Details)	Jun. 07, 2019CAD ($)	Jun. 07, 2019CAD ($)	Apr. 23, 2019CAD ($)$ / sharesshares	Dec. 31, 2019CAD ($)USD ($)item$ / sharesshares	Dec. 31, 2018CAD ($)USD ($)item$ / shares	Dec. 31, 2019item	Dec. 31, 2019shares	Dec. 31, 2019CAD ($)	Jun. 07, 2019$ / sharesshares	Sep. 21, 2018CAD ($)	Dec. 31, 2017USD ($)
Capital and reserves [Line Items]
Number of shares issued | shares			1,842,200						6,500,000
Proceeds from issuing shares		$ 6,500,000	$ 3,500,000
Par value per share | (per share)			$ 1.90						$ 1
Share issue related cost	$ 790,000
Number of share options exercised in share-based payment arrangement | item				852,500
Proceeds from exercise of options				$ 767,000	$ 218,000
Proceeds from exercise of warrants				$ 2,687,000
Number of shares issued for exercise of warrants | shares				1,315,266
Value of shares and warrants authorised										$ 50,000,000
Expected volatility, share options granted					73.00%
Number of share options outstanding in share-based payment arrangement				10,465,233		10,465,233
Description of vesting requirements for share-based payment arrangement				0.33%
Option life, share options granted (Years) | item				4	4
Expected forfeiture rate, share options forfeited				0.00%	2.00%
Expected dividends				0.00%	0.00%
Weighted average share price for share options in share-based payment arrangement exercised during period at date of exercise | $ / shares				$ 2.51	$ 1.96
Expense from share-based payment transactions with employees				$ 2,776,000	$ 2,480,000
Private Placement One [Member]
Capital and reserves [Line Items]
Number of shares issued | shares			1,579,000
Par value per share | $ / shares			$ 1.90
Private Placement Two [Member]
Capital and reserves [Line Items]
Number of shares issued | shares			263,200
Par value per share | $ / shares			$ 1.90
Top of range [member]
Capital and reserves [Line Items]
Risk free interest rate, share options granted				1.86%	2.16%
Expected volatility, share options granted				72.00%
Expected forfeiture rate, share options forfeited				2.00%
Bottom of range [member]
Capital and reserves [Line Items]
Risk free interest rate, share options granted				1.65%	2.01%
Expected volatility, share options granted				62.00%
Ordinary shares [member]
Capital and reserves [Line Items]
Number of shares issued | shares							171,480
Incentive Stock Options [Member]
Capital and reserves [Line Items]
Number of share options exercised in share-based payment arrangement				852,500	281,666
Number of share options outstanding in share-based payment arrangement				10,465,233	7,738,833						6,546,666
Number of options available for future grants | shares							1,449,833
Expense from share-based payment transactions with employees				$ 3,507,000	$ 2,480,000
Weighted average exercise price of share options granted in share-based payment arrangement | $ / shares				$ 1.93	$ 2.07
Incentive Stock Options [Member] | Mining property [member]
Capital and reserves [Line Items]
Expense from share-based payment transactions with employees				$ 395,000	$ 368,000
Incentive Stock Options [Member] | Charged to Income [Member]
Capital and reserves [Line Items]
Expense from share-based payment transactions with employees				$ 2,381,000	2,112,000
Restricted Share Units [Member]
Capital and reserves [Line Items]
Number of share options exercised in share-based payment arrangement | item				663,670
Number of shares issued for release of RSU settlement shares | shares				470,319
Number of options available for future grants | shares							2,910,850
Expense from share-based payment transactions with employees				$ 963,000	$ 467,000
Weighted average exercise price of share options granted in share-based payment arrangement | $ / shares				$ 1.63	$ 1.72
Number of other equity instruments granted in share-based payment arrangement | item				860,000	193,700
Weighted average fair value at measurement date, other equity instruments granted					$ 399,000			$ 1,407,000
Restricted Share Units [Member] | General and administrative expenses [Member]
Capital and reserves [Line Items]
Expense from share-based payment transactions with employees				$ 963,000	467,000
Deferred Stock Unit [Member]
Capital and reserves [Line Items]
Number of shares issued | shares							2,100,000
Number of share options exercised in share-based payment arrangement | item				280,000
Number of options available for future grants | shares							1,820,000
Expense from share-based payment transactions with employees				$ 731,000
Number of other equity instruments granted in share-based payment arrangement				280,000
Weighted average fair value at measurement date, other equity instruments granted								$ 731,000

Revenue from Environmental Se_3

Revenue from Environmental Services (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from rendering of services	$ 29,206	$ 19,880
Environmental Services [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Fee for service	20,463	15,007
Environmental Services [Member] | Fixed-price contracts [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Fixed price agreements	$ 8,743	$ 4,873

General and Administrative Ex_3

General and Administrative Expenses by Nature of Expense (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Genral And Administrative Expenses [Line Items]
Depreciation of property, plant and equipment	$ 1,972,000	$ 2,339,000
Depreciation from ROU assets	533,000
Office, operating and non-operating overheads	19,146,000	14,773,000
Share-based compensation	2,776,000	2,480,000
Total General and Administrative Expenses	17,084,000	12,170,000
Corporate Level [Member]
Genral And Administrative Expenses [Line Items]
Depreciation of property, plant and equipment	88,000	94,000
Amortization of intangible assets	10,000	11,000
Business development and investor relations	382,000	451,000
Office, operating and non-operating overheads	583,000	788,000
Professional	781,000	832,000
Regulatory	205,000	184,000
Restructuring costs		92,000
Salaries and contractors	3,176,000	2,262,000
Share-based compensation	3,977,000	2,544,000
Travel	254,000	240,000
Expenses, by nature	9,667,000	7,498,000
Corporate Level [Member] | Restricted Stock Units (RSUs) [Member]
Genral And Administrative Expenses [Line Items]
Depreciation from ROU assets	211,000
Environmental Services [Member]
Genral And Administrative Expenses [Line Items]
Depreciation of property, plant and equipment	192,000	126,000
Amortization of intangible assets	37,000	39,000
Business development and investor relations	547,000	370,000
Office, operating and non-operating overheads	1,750,000	1,262,000
Professional	395,000	142,000
Salaries and contractors	3,976,000	2,556,000
Travel	202,000	177,000
Expenses, by nature	7,417,000	4,672,000
Total General and Administrative Expenses	17,084,000	$ 12,170,000
Environmental Services [Member] | Restricted Stock Units (RSUs) [Member]
Genral And Administrative Expenses [Line Items]
Depreciation from ROU assets	$ 318,000

Mine Site Care and Maintenanc_2

Mine Site Care and Maintenance (Details) - CAD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018
Schedule of mine site care and maintenance expenses [Line Items]
Repairs and maintenance expense		$ 2,062	$ 2,603
Depreciation of property, plant and equipment [Member]
Schedule of mine site care and maintenance expenses [Line Items]
Repairs and maintenance expense		1,244	1,292
Salaries and contractors [Member]
Schedule of mine site care and maintenance expenses [Line Items]
Repairs and maintenance expense	[1]	288	913
Materials and equipment [Member]
Schedule of mine site care and maintenance expenses [Line Items]
Repairs and maintenance expense	[1]	143	346
Other expenses [Member]
Schedule of mine site care and maintenance expenses [Line Items]
Repairs and maintenance expense	[1]	$ 387	$ 52
[1]	Included in mine site care and maintenance costs are refurbishment and mill maintenance costs.

Other Income and expenses (Deta

Other Income and expenses (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Other Income and expenses
Credit Facility fee - warrants	$ (389)	$ (930)
Interest expense on lease liabilities	(162)	0
Interest income	164	241
Foreign exchange gain (loss)	(41)	(15)
Other income (expenses)	(83)	(68)
Other finance income (cost)	$ (511)	$ (772)

Income Tax Expense - Major Comp

Income Tax Expense - Major Components of Income Tax Expense (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Tax Expense
Accounting loss before taxes	$ (8,095)	$ (6,994)
Federal and provincial income tax rate of 27% (2018 - 27%)	(2,186)	(1,888)
Non-deductible permanent differences	977	1,064
Differences in foreign exchange rates	41	0
Effect of difference in tax rates		2
Change in deferred tax asset not recognized	1,568	1,100
Flow-through share renunciation	442	1,656
Change in estimate	(43)	(427)
Other	21	0
Income Tax Provision Recovery Adjustments	820	1,507
Income tax provision	$ 820	$ 1,507

Income Tax Expense (Details) _P

Income Tax Expense (Details) [Parenthetical]	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Tax Expense
Applicable tax rate	27.00%	27.00%

Income Tax Expense - Net deferr

Income Tax Expense - Net deferred tax liabilities (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax liabilities	$ (3,098)
Credited (charged) to the income statement	(1,625)
Charged to OCI	(2)
Deferred tax liabilities	(4,725)	$ (3,098)
Deferred Tax Liabilities [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax liabilities	(16,378)	(7,824)
Credited (charged) to the income statement	(3,875)	(8,554)
Charged to OCI	(2)	20
Deferred tax liabilities	(20,255)	(16,378)
Deferred Tax Assets [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	13,284	7,209
Credited (charged) to the income statement	2,250	(6,075)
Deferred tax assets	15,534	13,284
Mineral Property Interest [Member] | Deferred Tax Liabilities [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax liabilities	(7,919)	(2,873)
Credited (charged) to the income statement	(2,117)	(5,046)
Charged to OCI		0
Deferred tax liabilities	(10,036)	(7,919)
Mineral Property Interest [Member] | Deferred Tax Assets [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	4,471	839
Credited (charged) to the income statement	697	3,632
Deferred tax assets	5,168	4,471
Inventory [Member] | Deferred Tax Liabilities [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax liabilities	(113)	(113)
Credited (charged) to the income statement	0
Charged to OCI		0
Deferred tax liabilities	(113)	(113)
Loss Carryforward [Member] | Deferred Tax Assets [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	7,265	4,268
Credited (charged) to the income statement	1,298	2,997
Deferred tax assets	8,563	7,265
Property, Plant And Equipments [Member] | Deferred Tax Liabilities [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax liabilities	(2,062)	(1,464)
Credited (charged) to the income statement	(32)	(598)
Charged to OCI		0
Deferred tax liabilities	(2,094)	(2,062)
Property, Plant And Equipments [Member] | Deferred Tax Assets [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	72	77
Credited (charged) to the income statement	(20)	(5)
Deferred tax assets	52	72
Decommissioning and Rehabilitation Provision [member] | Deferred Tax Assets [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	1,427	1,364
Credited (charged) to the income statement	247	63
Deferred tax assets	1,674	1,427
Other [member] | Deferred Tax Liabilities [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax liabilities	(6,284)	(3,374)
Credited (charged) to the income statement	(1,726)	(2,930)
Charged to OCI	(2)	20
Deferred tax liabilities	(8,012)	(6,284)
Other [member] | Deferred Tax Assets [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	49	661
Credited (charged) to the income statement	28	(612)
Deferred tax assets	$ 77	$ 49

Income Tax Expense - Carry forw

Income Tax Expense - Carry forward loss (Details) $ in Thousands	Dec. 31, 2019CAD ($)
Income Tax Expense
Tax loss carry forwards	$ 50,363
Mineral property interest	8,242
Other	8,800
Unrecognised Tax Benefit	$ 67,405

Income Tax Expense - Non-capita

Income Tax Expense - Non-capital losses (Details) $ in Thousands	Dec. 31, 2019CAD ($)
Schedule Of Deferred Tax Assets And Liabilities [Line Items]
Unused tax losses for which no deferred tax asset recognised	$ 50,363
Canada [Member]
Schedule Of Deferred Tax Assets And Liabilities [Line Items]
Unused tax losses for which no deferred tax asset recognised	50,363
Canada [Member] | 2033
Schedule Of Deferred Tax Assets And Liabilities [Line Items]
Unused tax losses for which no deferred tax asset recognised	1,838
Canada [Member] | 2034
Schedule Of Deferred Tax Assets And Liabilities [Line Items]
Unused tax losses for which no deferred tax asset recognised	8,549
Canada [Member] | 2035
Schedule Of Deferred Tax Assets And Liabilities [Line Items]
Unused tax losses for which no deferred tax asset recognised	6,685
Canada [Member] | 2036
Schedule Of Deferred Tax Assets And Liabilities [Line Items]
Unused tax losses for which no deferred tax asset recognised	6,643
Canada [Member] | 2037
Schedule Of Deferred Tax Assets And Liabilities [Line Items]
Unused tax losses for which no deferred tax asset recognised	8,302
Canada [Member] | 2038
Schedule Of Deferred Tax Assets And Liabilities [Line Items]
Unused tax losses for which no deferred tax asset recognised	7,441
Canada [Member] | 2039
Schedule Of Deferred Tax Assets And Liabilities [Line Items]
Unused tax losses for which no deferred tax asset recognised	$ 10,905

Financial Instruments (Details)

Financial Instruments (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financial Instruments
Fair value through profit or loss - Warrant	$ 40	$ 24
Embedded derivative - Wheaton agreement	15,160	9,671	$ 6,600
Fair value through other comprehensive loss - Investment in marketable securities	1,289	736
Financial assets	$ 16,489	$ 10,431

Financial Instruments - Currenc

Financial Instruments - Currency Risk (Details) - Currency risk - CAD ($)	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Net exposure	$ 945,000	$ 1,642,000
Percentage of reasonably possible increase in risk assumption	10.00%
Percentage of reasonably possible decrease in risk assumption	10.00%
Increase (decrease) in net loss due to reasonably possible increase in designated risk component	$ 94,500	164,000
Increase (decrease) in net loss due to reasonably possible decrease in designated risk component	94,500	164,000
Increase (decrease) in comprehensive loss due to reasonably possible increase in designated risk component	94,500	164,000
Increase (decrease) in comprehensive loss due to reasonably possible decrease in designated risk component	94,500	164,000
Cash and cash equivalents
Disclosure of nature and extent of risks arising from financial instruments [line items]
Net exposure	588,000	1,374,000
Accounts and other receivable
Disclosure of nature and extent of risks arising from financial instruments [line items]
Net exposure	1,282,000	917,000
Accounts payable and accrued liabilities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Net exposure	$ (925,000)	$ (649,000)

Financial Instruments - Exposur

Financial Instruments - Exposure to credit Risk (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk	$ 15,990	$ 17,990
Cash [Member]
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk	6,313	3,629
Demand Deposits [Member]
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk	528	4,947
Term Deposits [Member]
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk	2,777	2,725
Accounts and other receivable
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk	6,372	6,689
Accounts and other receivable | Currently due [Member]
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk	5,229	5,228
Accounts and other receivable | Past due by 90 days or less, not impaired [Member]
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk	1,082	1,375
Accounts and other receivable | Past due by greater than 90 days, not impaired [Member]
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk	$ 61	$ 86

Financial Instruments - Commodi

Financial Instruments - Commodity Risk (Details) - Commodity risk - CAD ($)	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Total exposure	$ 15,160,000	$ 9,671,000
Embedded derivative asset
Disclosure of nature and extent of risks arising from financial instruments [line items]
Total exposure	$ 15,160,000	9,671,000
Percentage of reasonably possible increase in risk assumption	10.00%
Percentage of reasonably possible decrease in risk assumption	10.00%
Increase (decrease) in net loss due to reasonably possible increase in designated risk component	$ 1,516,000	967,000
Increase (decrease) in net loss due to reasonably possible decrease in designated risk component	1,516,000	967,000
Increase (decrease) in comprehensive loss due to reasonably possible increase in designated risk component	1,516,000	967,000
Increase (decrease) in comprehensive loss due to reasonably possible decrease in designated risk component	$ 1,516,000	$ 967,000

Financial Instruments - Contrac

Financial Instruments - Contractual maturities (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Trade and other payables, undiscounted cash flows	$ 5,143	$ 7,210
Within 90 days or less [Member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Trade and other payables, undiscounted cash flows	5,143	7,210
In later than 90 days, not later than one year [Member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Trade and other payables, undiscounted cash flows	$ 0	$ 0

Financial Instruments - Additio

Financial Instruments - Additional Information (Details)	12 Months Ended
	Dec. 31, 2019CAD ($)	Dec. 31, 2018CAD ($)
Disclosure of Financial Instruments [Line Items]
Fair Value Of Embedded Derivative	$ 5,489,000	$ 3,071,000
Expected Dividends	0.00%	0.00%
Option pricing model [member]
Disclosure of Financial Instruments [Line Items]
Expected Dividends	0.00%	0.00%
Option pricing model [member] | Top of range [member]
Disclosure of Financial Instruments [Line Items]
Expected Life, Significant Unabservable Input Assets	6 months 18 days	1 year 11 months 23 days
Option pricing model [member] | Bottom of range [member]
Disclosure of Financial Instruments [Line Items]
Expected Life, Significant Unabservable Input Assets	1 year 3 months 18 days	7 months 13 days
Option pricing model [member] | Interest rate, measurement input [member]
Disclosure of Financial Instruments [Line Items]
Significant unobservable input, assets	1.71	1.85
Option pricing model [member] | Historical volatility for shares, measurement input [member] | Top of range [member]
Disclosure of Financial Instruments [Line Items]
Significant unobservable input, assets	81	93
Option pricing model [member] | Historical volatility for shares, measurement input [member] | Bottom of range [member]
Disclosure of Financial Instruments [Line Items]
Significant unobservable input, assets	75	72

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating Cash Flows Arising From Interest and Taxes
Interest received	$ 140	$ 129
Non-Cash Investing and Financing Transactions
Capitalization of share-based compensation to mineral properties	395	368
Capitalization of depreciation to mineral properties	325	375
Capitalization of re-estimation of decommissioning and rehabilitation provision	853	163
Share issuance costs (non-cash)	104	0
Increase in non-cash working capital related to: Mineral properties	$ 505	$ 311

Segmented Information (Details)

Segmented Information (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of operating segments [line items]
Total revenues as reported	$ 29,206	$ 19,880
Cost of sales	23,130	13,828
Depreciation and amortization	2,099	1,562
Share-based compensation	3,977	2,544
Other G&A expenses	12,254	10,294
Mine site care and maintenance	818	1,311
Foreign exchange (gain) loss	41	15
Loss on investments	3	572
Loss on equity investments	0
Gain on derivative asset	(5,489)	(3,071)
Other (income) loss	468	(181)
Segment income (loss) before taxes	(8,095)	(6,994)
Total assets	145,353	133,018
Total liabilities	18,683	16,388
Environmental Services [Member]
Disclosure of operating segments [line items]
Total revenues as reported	29,206	19,880
Cost of sales	23,130	13,828
Depreciation and amortization	548	165
Share-based compensation	0	0
Other G&A expenses	6,871	4,507
Mine site care and maintenance	0	0
Foreign exchange (gain) loss	5	35
Loss on investments	0
Loss on equity investments	0
Gain on derivative asset	0	0
Other (income) loss	57	(8)
Segment income (loss) before taxes	(1,405)	1,353
Total assets	9,509	11,462
Total liabilities	2,898	4,116
Mining [Member]
Disclosure of operating segments [line items]
Total revenues as reported	0	0
Cost of sales	0	0
Depreciation and amortization	1,244	1,292
Share-based compensation	0	0
Other G&A expenses	69	86
Mine site care and maintenance	818	1,311
Foreign exchange (gain) loss	(5)	9
Loss on investments	1	113
Loss on equity investments	0
Gain on derivative asset	(5,489)	(3,071)
Other (income) loss	78	68
Segment income (loss) before taxes	3,284	192
Total assets	125,878	113,341
Total liabilities	12,426	10,284
Corporate And Other [Member]
Disclosure of operating segments [line items]
Total revenues as reported	0	0
Cost of sales	0	0
Depreciation and amortization	307	105
Share-based compensation	3,977	2,544
Other G&A expenses	5,314	5,701
Mine site care and maintenance	0	0
Foreign exchange (gain) loss	41	(29)
Loss on investments	2	459
Loss on equity investments	0
Gain on derivative asset	0	0
Other (income) loss	333	(241)
Segment income (loss) before taxes	(9,974)	(8,539)
Total assets	9,966	8,215
Total liabilities	3,359	1,988
Canada [Member]
Disclosure of operating segments [line items]
Total revenues as reported	20,076	13,105
Canada [Member] | Environmental Services [Member]
Disclosure of operating segments [line items]
Total revenues as reported	20,076	13,105
Canada [Member] | Mining [Member]
Disclosure of operating segments [line items]
Total revenues as reported	0	0
Canada [Member] | Corporate And Other [Member]
Disclosure of operating segments [line items]
Total revenues as reported	0	0
Non-Canadian [Member]
Disclosure of operating segments [line items]
Total revenues as reported	9,130	6,775
Non-Canadian [Member] | Environmental Services [Member]
Disclosure of operating segments [line items]
Total revenues as reported	9,130	6,775
Non-Canadian [Member] | Mining [Member]
Disclosure of operating segments [line items]
Total revenues as reported	0	0
Non-Canadian [Member] | Corporate And Other [Member]
Disclosure of operating segments [line items]
Total revenues as reported	$ 0	$ 0

Segmented Information - Additio

Segmented Information - Additional Information (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of operating segments [line items]
Revenue from rendering of services	$ 29,206,000	$ 19,880,000
Mining [Member]
Disclosure of operating segments [line items]
Revenue from rendering of services	0	$ 0
Elimination of intersegment amounts [member] | Mining [Member]
Disclosure of operating segments [line items]
Revenue from rendering of services	830,000
Two Customers [Member]
Disclosure of operating segments [line items]
Revenue	$ 15,500,000

Related Party Transactions (Det

Related Party Transactions (Details) - Related parties [member] - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of transactions between related parties [line items]
Salaries and other short-term benefits	$ 2,614	$ 2,130
Share-based compensation	2,990	2,513
Key management personnel compensation	$ 5,604	$ 4,643

Commitments (Details)

Commitments (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Commitments And Contingencies [Line Items]
Contractual capital commitments		$ 360,000
Subsequent Events [Member] | Flow-through common stock[] [Member]
Disclosure Of Commitments And Contingencies [Line Items]
Payments for exploration and evaluation expenses	$ 1,952,000

Subsequent Event (Details)

Subsequent Event (Details) - Disposal of major operating segment - Alexco Environmental Group ("AEG")	Feb. 14, 2020CAD ($)
Disclosure of non-adjusting events after reporting period [line items]
Aggregate consideration	$ 13,350,000
Cash consideration	12,100,000
Consideration through promissory note	$ 1,250,000