Excellon Resources (EXNRF) 6-K 14 May 21 2021 Q1 Condensed Consolidated Financial Statements Financial data

Document and Entity Information

Document and Entity Information	3 Months Ended
	Mar. 31, 2021
Cover [Abstract]
Entity Registrant Name	EXCELLON RESOURCES INC
Entity Central Index Key	0001263011
Document Type	6-K
Document Period End Date	Mar. 31, 2021
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2021

Condensed Consolidated Statemen

Condensed Consolidated Statements of Financial Position (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 6,501	$ 8,380
Marketable securities and warrants	1,831	2,350
Trade receivables	1,254	1,782
VAT recoverable	4,981	5,573
Inventories	2,982	2,385
Other current assets	1,472	1,323
Current assets	19,021	21,793
Non-current assets
Property, plant and equipment	24,682	25,830
Mineral rights	20,448	20,511
Deferred income tax assets	4,981	5,145
Total assets	69,132	73,279
Current liabilities
Trade and other payables	6,776	8,172
VAT payable	3,208	3,415
Current portion of long-term lease liabilities	353	405
Current liabilities	10,337	11,992
Non-current liabilities
Convertible debentures	8,012	7,283
Long-term lease liabilities	375	425
Provisions	2,183	2,208
Deferred income tax liabilities	895	929
Total liabilities	21,802	22,837
Equity
Share capital	136,363	136,199
Contributed surplus	34,634	34,015
Accumulated other comprehensive loss	(16,353)	(15,380)
Deficit	(107,314)	(104,392)
Total equity	47,330	50,442
Total liabilities and equity	$ 69,132	$ 73,279

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Profit or loss [abstract]
Revenues	$ 9,781	$ 5,561
Production costs	(6,153)	(5,479)
Depletion and amortization	(1,790)	(1,269)
Cost of Sales	(7,943)	(6,748)
Gross Profit (Loss)	1,838	(1,187)
Administrative expenses	(1,443)	(933)
Share-based payments	(765)	(149)
Amortization	(134)	(81)
General and administrative expenses	(2,342)	(1,163)
Exploration	(1,073)	(373)
Other expenses	(651)	(605)
Finance expenses	(725)	(2,091)
Loss before income taxes	(2,953)	(5,419)
Income tax recovery (expense)	31	(953)
Net Loss	(2,922)	(6,372)
Items that may be reclassified subsequently to profit and loss:
Foreign currency translation differences	(973)	(7,260)
Total other comprehensive loss	(973)	(7,260)
Total comprehensive loss	$ (3,895)	$ (13,632)
Loss per share
Basic and diluted	$ (0.09)	$ (0.28)
Weighted average number of shares
Basic and diluted	32,371,125	22,501,763

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flow (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flow provided by (used in) Operating activities
Net loss for the period	$ (2,922)	$ (6,372)
Adjustments for non-cash items:
Depletion and amortization	1,902	1,323
Income tax (recovery) expense	(31)	845
Share-based compensation	765	135
Interest and accretion expense	739	255
Unrealized loss on currency hedges	21	1,837
Loss on disposal of mineral rights		188
Unrealized loss on marketable securities and purchase warrants	543	19
Taxes paid	(98)	(79)
Operating cash flows before changes in working capital	919	(1,849)
Changes in non-cash working capital
Trade receivables	528	1,615
VAT recoverable	592	4
Inventories	(597)	233
Other assets	(170)	(79)
Trade payables	(1,890)	85
VAT payable	(207)	95
Net cash (used in) from operating activities	(825)	104
Investing activities
Purchase of property, plant and equipment	(884)	(3,029)
Purchase of mineral rights	(75)
Payments received under earn-in agreement	75
Loan to Otis Gold Corp.		(355)
Net cash used in investing activities	(884)	(3,384)
Financing activities
Proceeds from Credit Facility		5,871
Proceeds from options and warrants exercised	18
Lease payments	(123)	(82)
Interest paid	(15)	(8)
Net cash (used in) from financing activities	(120)	5,781
Effect of exchange rate changes on cash and cash equivalents	(50)	(403)
Change in cash and cash equivalents	(1,879)	2,098
Cash and cash equivalents - Beginning of the period	8,380	6,344
Cash and cash equivalents - End of the period	$ 6,501	$ 8,442

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Share Capital [Member]	Contributed Surplus [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Deficit [Member]	Total
Balance at Dec. 31, 2019	$ 114,840	$ 28,730	$ (13,006)	$ (88,372)	$ 42,192
Statement Line Items [Line Items]
Net loss for the period				(6,372)	(6,372)
Total other comprehensive loss			(7,260)		(7,260)
Total comprehensive loss			(7,260)	(6,372)	(13,632)
Shares issued as part of Credit Facility	180				180
Stock options, Value of services recognized		33			33
Deferred and restricted share units, Value of units recognized and shares issued	154	(51)			103
Balance at Mar. 31, 2020	115,174	28,712	(20,266)	(94,744)	28,876
Balance at Dec. 31, 2020	136,199	34,015	(15,380)	(104,392)	50,442
Statement Line Items [Line Items]
Net loss for the period				(2,922)	(2,922)
Total other comprehensive loss			(973)		(973)
Total comprehensive loss			(973)	(2,922)	(3,895)
Stock options, Value of services recognized		203			203
Deferred and restricted share units, Value of units recognized and shares issued		548			548
Stock options, Proceeds on issuing shares	$ 27	$ (9)			$ 18
Deferred and restricted share units, Shares issued on exercise of RSUs and DSUs	137	(123)			14
Balance at Mar. 31, 2021	$ 136,363	$ 34,634	$ (16,353)	$ (107,314)	$ 47,330

General Information

General Information	3 Months Ended
	Mar. 31, 2021
Disclosure of reserves within equity [abstract]
General Information	1. GENERAL INFORMATION Excellon Resources Inc. (the “Company” or “Excellon”) is a silver mining and exploration company listed on the Toronto Stock Exchange and NYSE American, LLC exchange (the “NYSE American”) under the symbol EXN and the Frankfurt Stock Exchange under the symbol E4X2. Excellon’s vision is to create wealth by realizing strategic opportunities through discipline and innovation for the benefit of employees, communities and shareholders. The Company is advancing a precious metals growth pipeline that includes: Platosa, Mexico’s highest-grade silver mine since production commenced in 2005; Kilgore, a high quality gold development project in Idaho; and an option on Silver City, a high-grade epithermal silver district in Saxony, Germany with 750 years of mining history and no modern exploration. The Company also aims to continue capitalizing on current market conditions by acquiring undervalued projects. On April 22, 2020, the Company completed the acquisition of Otis Gold Corp. (“Otis”) by way of a statutory plan of arrangement resulting in Otis becoming a wholly-owned subsidiary of Excellon. In September 2020, the Company completed a consolidation of its common shares at a ratio of five pre-consolidation common shares for one post-consolidation common share effective September 10, 2020, and the listing of its common shares on the NYSE American, LLC exchange effective September 23, 2020. As a result of the consolidation, shares issuable pursuant to the Company’s outstanding options, warrants, restricted share units and other convertible securities were proportionally adjusted on the same basis. All common share numbers, numbers of shares issuable under stock options, warrants and restricted share units and related per share amounts in these consolidated condensed financial statements have been retrospectively adjusted to reflect the share consolidation. Excellon is domiciled in Canada and incorporated under the laws of the province of Ontario. The address of its registered office is 10 King Street East, Suite 200, Toronto, Ontario, M5C 1C3, Canada. These condensed consolidated financial statements were approved by the Board of Directors on May 13, 2021.

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2021
Disclosure of associates [abstract]
Basis of Presentation	2. BASIS OF PRESENTATION a) Statement of compliance and going concern The Company prepares its condensed consolidated financial statements in accordance with International Accounting Standard 34, Interim Financial Reporting These condensed consolidated financial statements are prepared on a going concern basis, which assumes that the Company will continue in operation for the foreseeable future and will be able to realize its assets and discharge its liabilities in the normal course of business. The Company applies judgment in assessing the future impact of COVID-19 on its business and operations, future commodity prices, and continued access to debt and/or equity financing. Management anticipates that the Company will have sufficient cash resources to fund the next 12 months of planned expenditures and discharge its liabilities in the normal course of operations. b) Summary of significant accounting policies, judgments, and estimates These condensed consolidated financial statements have been prepared using the same accounting policies, methods of computation, judgments and estimates as the annual consolidated financial statements of the Company as at and for the year ended December 31, 2020. Certain items in the statement of cash flow have been reclassified to conform with the current interim period classification.

Marketable Securities and Warra

Marketable Securities and Warrants	3 Months Ended
	Mar. 31, 2021
Current and long-term lease liabilities.
Marketable Securities and Warrants	3. MARKETABLE SECURITIES AND WARRANTS In 2018, the Company entered into an option agreement to farm-out its Beschefer property to Wallbridge Mining Company Ltd. (“Wallbridge”), receiving an initial consideration of 500,000 Wallbridge Shares (TSX:WM). On March 17, 2020, the Company entered into an amended agreement to receive an additional 3,000,000 Wallbridge Shares and 500,000 Warrants to relinquish all interest in the Beschefer Property (“Wallbridge Consideration”) (Note 7). The Warrants have a strike price of C$1.00 and a term of five years from the date of issuance. The Wallbridge Shares and Warrants are measured at fair value with changes recorded in other income/expense. March 31 December 31 2021 2020 $ $ Marketable securities at fair value Opening balance 2,138 348 Additions - 995 Unrealized (loss) gain on revaluation (469 ) 645 Exchange differences 21 150 Closing balance 1,690 2,138 Warrants at fair value Opening balance 212 - Additions - 128 Unrealized (loss) gain on revaluation (74 ) 67 Exchange differences 3 17 Closing balance 141 212 Marketable securities and warrants 1,831 2,350

Inventories

Inventories	3 Months Ended
	Mar. 31, 2021
Disclosure Of Inventories Abstract
Inventories	4. INVENTORIES March 31 December 31 2021 2020 $ $ Ore stockpiles 393 463 Concentrate inventory 367 4 Production spare parts 2,699 2,441 Obsolescence Provision - spare parts (477 ) (523 ) 2,982 2,385

Property, Plant and Equipment

Property, Plant and Equipment	3 Months Ended
	Mar. 31, 2021
Disclosure of detailed information about property, plant and equipment [abstract]
Property, Plant and Equipment	5. PROPERTY, PLANT AND EQUIPMENT Assets Right Mining Mining Processing under of use properties equipment equipment construction assets Total $ $ $ $ $ $ At January 1, 2020 Cost 31,774 16,887 6,160 5,071 1,646 61,538 Accumulated amortization (20,198 ) (11,267 ) (5,036 ) - (219 ) (36,720 ) 11,576 5,620 1,124 5,071 1,427 24,818 Year ended December 31, 2020 Opening net book value 11,576 5,620 1,124 5,071 1,427 24,818 Additions 1,416 1,873 673 3,658 48 7,668 Reclassification 4,046 3,333 - (7,325 ) (54 ) - Depletion and amortization (2,191 ) (2,101 ) (298 ) - (202 ) (4,792 ) Exchange differences (2) (377 ) 164 (503 ) (882 ) (266 ) (1,864 ) Closing net book value 14,470 8,889 996 522 953 25,830 At December 31, 2020 Cost 36,400 21,576 6,075 522 1,640 66,213 Accumulated amortization (21,930 ) (12,687 ) (5,079 ) - (687 ) (40,383 ) 14,470 8,889 996 522 953 25,830 Period ended March 31, 2021 Opening net book value 14,470 8,889 996 522 953 25,830 Additions (1) 867 33 49 512 13 1,474 Depletion and amortization (1,048 ) (684 ) (49 ) - (61 ) (1,842 ) Exchange differences (2) (448 ) (275 ) (32 ) (17 ) (8 ) (780 ) Closing net book value 13,841 7,963 964 1,017 897 24,682 At March 31, 2021 Cost 36,398 20,950 5,930 1,017 1,645 65,940 Accumulated amortization (22,557 ) (12,987 ) (4,966 ) - (748 ) (41,258 ) 13,841 7,963 964 1,017 897 24,682 (1) During the three months ended March 31, 2021, the Company incurred $512 in sustaining capital expenditures recorded as assets under construction (March 31, 2020: $2,105), primarily relating to ventilation and dewatering systems at the Platosa Mine. The associated assets will be reclassified to their appropriate asset class when commissioned. (2) Unrealized foreign exchange losses on translation of Mexican peso assets at the period-end exchange rate.

Mineral Rights

Mineral Rights	3 Months Ended
	Mar. 31, 2021
Extractive Industries [Abstract]
Mineral Rights	6. MINERAL RIGHTS Platosa Beschefer Silver City Kilgore Oakley (Mexico) (Canada) (1) (Germany) (2) (Idaho) (3) (Idaho) (4) Total $ $ $ $ $ $ At January 1, 2020 Cost 3,785 1,428 245 - - 5,458 Accumulated amortization (2,782 ) - - - (2,782 ) 1,003 1,428 245 - - 2,676 Year ended December 31, 2020 Opening net book value 1,003 1,428 245 - - 2,676 Acquisitions - - 317 13,711 5,332 19,360 Additions - - - 45 32 77 Disposals - (1,348 ) - - - (1,348 ) Depletion and amortization (178 ) - - (178 ) Exchange differences (21 ) (80 ) 25 - - (76 ) Closing net book value 804 - 587 13,756 5,364 20,511 At December 31, 2020 Cost 3,721 - 587 13,756 5,364 23,428 Accumulated amortization (2,917 ) - - - - (2,917 ) 804 - 587 13,756 5,364 20,511 Period ended March 31, 2021 Opening net book value 804 - 587 13,756 5,364 20,511 Additions - - 75 - - 75 Payments received under earn-in agreement - - - - (75 ) (75 ) Depletion and amortization (60 ) - - - - (60 ) Exchange differences (9 ) - 6 - - (3 ) Closing net book value 735 - 668 13,756 5,289 20,448 At March 31, 2021 Cost 3,680 - 668 13,756 5,289 23,393 Accumulated amortization (2,945 ) - - - - (2,945 ) 735 - 668 13,756 5,289 20,448 (1) See Note 3. In accordance with the Company’s farm-out accounting policy, the initial fair value of the Wallbridge Consideration was credited to the Beschefer Mineral Rights and a loss on disposal ($188) was recorded in the condensed consolidated statement of comprehensive loss. (2) On September 24, 2019 the Company signed an option agreement (the “Globex Agreement”) with Globex Mining Enterprises Inc. (“Globex”) to acquire a 100% interest in the Braunsdorf exploration license for the Silver City Project in Saxony, Germany, pursuant to which the Company agreed to pay total aggregate consideration of C$500 in cash and issue common shares valued at C$1,600 over a period of three years. Upon completion of the payments and common share issuances the Company will grant Globex a gross metals royalty of 3% for precious metals and 2.5% for other metals, both of which may be reduced by 1% upon a payment of $1,500. Additional one-time payments of C$300 and C$700 will be made by the Company following any future announcement of a maiden resource on the property and upon achievement of commercial production from the project, respectively. The first issuance of 45,367 common shares (valued at C$225) and the first cash payment (C$100) were made on the effective date of the Globex Agreement and recorded as an addition to mineral rights ($245). On September 21, 2020, the second issuance of 65,657 common shares (valued at C$325) and the second cash payment (C$100) were made and recorded as an addition to mineral rights ($317). In March 2021, the Frauenstein, Mohorn and Oederan exploration licenses were granted to the Company following applications to the Sächsisches Oberbergamt (Saxon Mining Authority), increasing the Silver City ground position by 17,600 hectares. (3) On April 22, 2020, the Company acquired the Kilgore Gold Project as part of the Otis acquisition. The Company has a 100% interest in the Kilgore Gold property located in Clark County, Idaho, which consisted of 614 federal lode mining claims unencumbered by any underlying royalties. In Q4 2020, the Company staked 175 new claims expanding the Kilgore property by 28%. (4) On April 22, 2020, the Company acquired 100% ownership of the Oakley Project in Cassia County, Idaho as part of the Otis acquisition. The Oakley Project includes Blue Hill Creek, Matrix Creek, Cold Creek: ■ Blue Hill Creek (“BHC”) – 44 unpatented federal lode mining claims and an adjacent 80 acre Idaho state lease, subject to a 2% net smelter returns (“NSR”) royalty on gold. ■ Matrix Creek – 61 unpatented federal lode mining claims and a 320 acre mineral lease, subject to a 2% NSR on gold. The NSRs at BHC and Matrix Creek can be purchased for a total of $2,000. ■ Cold Creek – 117 unpatented federal lode mining claims. On February 26, 2020, Otis entered into a definitive option agreement with Centerra Gold Inc. (“Centerra”) whereby Centerra can earn up to a 70% interest in the Oakley Project in exchange for total exploration expenditures of $7 million and cash payments to the Company of $550 over a six-year period. During the term of the Oakley Agreement, Excellon is Project Manager and earns 10% of the approved exploration expenditures for technical oversight and project management. In Q1 2021, the Company received a payment of $75 from Centerra under the earn-in agreement. In accordance with the Company’s farm-out accounting policy this amount was credited to the Oakley Project.

Trade and Other Payables

Trade and Other Payables	3 Months Ended
	Mar. 31, 2021
Trade And Other Payables
Trade and Other Payables	7. TRADE AND OTHER PAYABLES The Company’s trade payables comprise accounts payable and accruals as at March 31, 2021. Accounts payable make up $3,013 of the $6,776 balance (as at December 31, 2020 – $4,252 of the $8,172 balance), of which $2,329 relate to operations in Mexico (December 31, 2020 – $2,429). Accruals and other payables of $3,763 (as at December 31, 2020 – $3,920) include administrative and operating costs, accounting and legal services, income taxes and statutory payroll withholding taxes.

Provisions

Provisions	3 Months Ended
	Mar. 31, 2021
Provisions [abstract]
Provisions	8. PROVISIONS Post-retirement Rehabilitation benefits (1) provision (2) Total $ $ $ Year ended December 31, 2020 Opening balance 617 1,626 2,243 Termination payments (113 ) - (113 ) Change in estimate 233 - 233 Accretion for the period 40 61 101 Exchange differences (125 ) (131 ) (256 ) Closing Balance 652 1,556 2,208 Period ended March 31, 2021 Opening balance 652 1,556 2,208 Accretion for the period 43 18 61 Exchange differences (36 ) (50 ) (86 ) Closing Balance 659 1,524 2,183 (1) Post-retirement benefits: The Company provides post-retirement benefits supplements as well as leaving indemnities to employees at the Mexican operations. Under Mexican labour law, the Company provides statutorily mandated severance benefits to its employees terminated under certain circumstances. Key financial assumptions used in the above estimate include an annual discount rate of 4.86% (December 31, 2020 – 4.86%), annual salary rate increase of 3.75% (December 31, 2020 – 3.75%) and minimum wage increase rate of 5.31% (December 31, 2020 – 5.31%) and the life of mine of approximately four years. (2) Rehabilitation provision: Key financial assumptions used in the above estimate include an annual discount rate of 4.73% (December 31, 2020 – 4.73%), Mexican inflation rate and the life of mine of approximately four years. The total undiscounted amount of estimated cash flows required to settle the Company’s obligations is $1,746 of which $892 relates to the Platosa mine and $854 relates to the Miguel Auza processing facility.

Convertible Debentures

Convertible Debentures	3 Months Ended
	Mar. 31, 2021
Convertible Debentures Abstract
Convertible Debentures	9. CONVERTIBLE DEBENTURES On July 30, 2020, the Company closed a private placement (the “Financing”) of secured convertible debentures (the “Debentures”) for total proceeds of C$17.91 million. The Debentures have a term of 36 months and are convertible into common shares of the Company prior to maturity at a conversion price of C$5.30 per common share. The Debentures bear interest at an annual rate of 5.75%, payable in cash semi-annually. Interest on the Debentures may alternatively be paid in common shares of the Company at the Company’s option based on the 10-day volume-weighted average price (“VWAP”) of the common shares prior to the payment date and an effective annual rate of 10%. The Debentures are secured against the Company’s assets in Mexico. On or after July 30, 2022 and prior to maturity, the Company may accelerate the conversion of the entire issuance of Debentures, provided that the 20-day VWAP of the common shares on or after such 24-month anniversary is equal to greater than C$12.50. The purchasers of the Debentures were also issued 1,006,542 common share purchase warrants (“Warrants”), with an exercise price of C$5.75 and an expiry date of July 30, 2023. In connection with the Financing, the Company granted 136,887 common share purchase warrants (the “Broker Warrants”), with an exercise price of C$5.75 and an expiry date of July 30, 2023. Net proceeds from the Debentures were C$17.1 million ($12.8 million) after cash transaction costs of C$768 ($572) and were allocated between debt and equity components. On initial recognition, the fair value of the debt of C$8,459 ($6,298) was estimated using a coupled Black-Scholes model based on an expected term of 36 months and a coupon rate of 5.75%. The residual portion of C$6,382 ($4,751) represented the value of the conversion option and other features of the Debentures, and was recognized in equity net of a deferred tax recovery of C$2,301 ($1,713) related to a taxable temporary difference on this equity component. The debt component is recorded at amortized cost and is accreted to the principal amount over the term of the Debentures. The Company elected to pay the first interest payment in common shares valued at C$754 ($588) on December 31, 2020. The Company recorded interest expense of C$820 ($648) for the three months ended March 31, 2021. $ CAD $ USD Year ended December 31, 2020 Proceeds on issuance of Debenture 17,910 13,334 Transaction costs paid (768 ) (572 ) Portion allocated to equity - conversion option and other features (8,683 ) (6,464 ) Interest expense 1,594 1,222 Value of shares issued to settle interest payable (754 ) (588 ) Exchange differences - 351 Closing balance 9,299 7,283 Period ended March 31, 2021 Opening balance 9,299 7,283 Interest expense 820 648 Exchange differences - 81 Closing balance 10,119 8,012

Share Capital

Share Capital	3 Months Ended
	Mar. 31, 2021
Disclosure of classes of share capital [abstract]
Share Capital	10. SHARE CAPITAL The Company’s authorized share capital consists of an unlimited number of common shares. Number of shares (000’s) $ Year ended December 31, 2020 Opening balance 22,491 114,840 Shares issued on exercise of stock options 261 602 Shares issued on exercise of RSUs and DSUs 382 1,627 Shares issued on exercise of warrants 2 8 Shares issued on acquisition of Otis Gold Corp (1) 8,131 16,370 Shares issued as part of Credit Facility (2) 107 180 Shares issued to settle payables (3) 671 1,738 Value of shares issued in asset acquisition (4) 66 246 Shares issued to settle interest on convertible debentures (5) 228 588 Balance at December 31, 2020 32,339 136,199 Period ended March 31, 2021 Opening balance 32,339 136,199 Shares issued on exercise of stock options 8 27 Shares issued on exercise of RSUs and DSUs 33 137 Balance at March 31, 2021 32,380 136,363 (1) On April 22, 2020, the Company completed the acquisition of Otis. Otis shareholders received 0.046 of a common share for each Otis common share held (the “Exchange Ratio”), resulting in the issuance of 8,130,630 common shares valued at the market price of C$2.85 per common share. (2) On March 16, 2020, the Company closed a US$6-million bridge-loan credit facility (the “Credit Facility”) with Sprott Private Resource Lending II (Collector), LP (“Sprott Lending”). The Credit Facility bore interest of 10% per annum, compounded and payable monthly, and was due and payable in full on or before September 14, 2020. In consideration for the Credit Facility, Excellon issued 107,291 common shares to Sprott Lending. The Company repaid the Credit Facility on August 4, 2020 on the closing of the Financing (Note 9). (3) During the second and third quarters of 2020, the Company issued 670,974 common shares in settlement of certain Otis transaction costs and Mexican trade payables totaling C$2,098, as approved by the TSX. An amount of $196 (C$261) was recorded in other expenses to reflect the difference between the market value of the common shares issued and the carrying amount of the payables settled. (4) On September 21, 2020 and in accordance with the Globex Agreement, the second issuance of 65,657 common shares (valued at C$325) and the second cash payment (C$100) were made and recorded as an addition to mineral rights (Note 6). (5) On December 31, 2020, the Company elected to pay the first interest payment on the Debentures (Note 9) in common shares valued at C$754 ($588). The outstanding number and weighted average exercise prices of equity-settled Stock Options, Warrants, Deferred Share Units (“DSUs”) and Restricted Share Units (“RSUs”) are as follows: Options Warrants Options Outstanding Weighted Average Exercise Price (CAD) Warrants Outstanding (2) Weighted Average Exercise Price (CAD) RSUs Outstanding DSUs Outstanding Outstanding at January 1, 2020 461,000 5.59 1,092,500 7.00 572,485 467,572 Granted/issued/acquired (1) 1,002,395 3.34 1,448,488 5.23 337,331 217,264 Exercised/settled (260,596 ) 1.93 (2,400 ) 3.45 (224,750 ) (193,507 ) Expired (332,359 ) 5.20 - - (91,332 ) - Forfeited (23,004 ) 4.26 - - (128,223 ) - Outstanding at December 31, 2020 847,437 4.21 2,538,588 6.00 465,511 491,330 Exercisable at December 31, 2020 548,009 4.52 2,538,588 6.00 - 98,417 Outstanding at January 1, 2021 847,437 4.21 2,538,588 6.00 465,511 491,330 Granted/issued 212,500 4.14 - - 412,649 110,000 Exercised/settled (7,500 ) 3.05 - - (38,117 ) - Expired (5,000 ) 8.75 - - - - Outstanding at March 31, 2021 1,047,437 4.19 2,538,588 6.00 840,043 601,330 Exercisable at March 31, 2021 631,017 4.49 2,538,588 6.00 - 98,417 (1) On April 22, 2020, the Company issued 531,895 Options and 305,060 Warrants (“$3.30 Warrants”) in replacement of Otis Options and Warrants outstanding at the date of acquiring Otis. In accordance with the Otis Stock Option Plan, 130,365 stock options expired on July 22, 2020, 90 days after the closing of the Transaction. (2) The Company has the following warrants outstanding: ● 1,092,400 warrants with an exercise price of C$7.00, expiring on August 27, 2021; ● 302,760 warrants with an exercise price of C$3.30, expiring on March 29, 2022; and ● 1,143,428 warrants with an exercise price of C$5.75, expiring on July 30, 2023 (Note 9). Options outstanding and exercisable are as follows: Exercise Price Range (CAD) Stock Options Outstanding Weighted Average Remaining Contractual Life (years) Stock Options Exercisable Weighted Average $ 2.00 to $3.99 494,987 2.17 289,860 3.08 $ 4.00 to $5.99 456,450 3.11 245,157 4.62 $ 6.00 to $7.99 15,000 1.16 15,000 7.63 $ 8.00 to $9.99 81,000 1.37 81,000 8.52 1,047,437 2.50 631,017 4.49 Compensation expense is recognized over the vesting period of the grant with the corresponding equity impact recorded in contributed surplus. Share-based compensation expense comprises the following: Three months ended March 31 March 31 2021 2020 $ $ Stock options 203 34 RSU 141 38 DSU 421 77 765 149

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2021
Disclosure of contingent liabilities [abstract]
Commitments and Contingencies	11. COMMITMENTS AND CONTINGENCIES The following table summarizes the Company’s significant unrecognized commitments as of March 31, 2021: 2021 2022 2023 2024 2025 Total $ $ $ $ $ $ Exploration License (Silver City Project) - cash 79 158 - - - 237 Exploration License (Silver City Project) - shares 335 492 - 827 Concession holding fees 411 675 618 692 692 3,088 825 1,325 618 692 692 4,152 Excluded above is an NSR royalty on the Platosa Mine as such payments vary period to period based on production results and commodity prices. The NSR bears a rate of either (a) 1.25% in respect of manto or mineralization other than skarn mineralization or (b) 0.50% in respect of skarn or “Source” mineralization. Payments are made in cash semi-annually. Legal contingencies The Company is defending various legal claims including one against a subsidiary of the Company which is party to an action by a claimant in respect of damages under a property agreement regarding a non-material mineral concession within the Evolución Project. The concession is subject to an exploration and exploitation agreement with a purchase option (the “Antigua Agreement”) dated December 3, 2006 between San Pedro Resources SA de CV (“San Pedro”, now a subsidiary of Excellon) and the owner (the “Plaintiff”) that provides, among other things, for a minimum payment of $2.5 plus value added tax per month and the payment of a 3% NSR royalty. San Pedro has the right to purchase absolute title to La Antigua including the NSR royalty upon payment of $500. San Pedro was under no contractual obligation to put the mine into production and has not done so. The Plaintiff was awarded damages in the court of first instance in Torreón, Coahuila. Both San Pedro and the Plaintiff appealed the decision to the Second District State Court in the Judicial District of Torreón. That Court confirmed the initial decision but, subsequently, pursuant to an order obtained by the Plaintiff, granted the Plaintiff an award of damages multiple times greater than any income the applicable NSR royalty could produce even in the event of commercial production. San Pedro is appealing this decision to the federal courts of Mexico and believes that the decision is without merit and not supported by the evidence, facts or law. The Company expects the likelihood of this decision in respect of damages is remote and will be reversed and rationalized in the federal court system. There is no impact to the ongoing operations of the business. The Company has accrued an amount of $126 (December 31, 2020: $142) related to various labour disputes filed since 2010.

Revenues

Revenues	3 Months Ended
	Mar. 31, 2021
Revenue [abstract]
Revenues	12. REVENUES Under the terms of the Company’s concentrate sales contracts, lead–silver and zinc–silver concentrates are sold on a provisional pricing basis whereby sales are recognized at prevailing metal prices when the revenue recognition criteria have been met, namely when title and the risks and rewards of ownership have transferred to the customer. Final pricing of each delivery is not determined until one to three months post-delivery. The price recorded at the time of sale may differ from the actual final price received from the customer due to changes in market prices for metals. The price volatility is considered an embedded derivative in accounts receivable. The embedded derivative is recorded at fair value by mark-to-market adjustments at each reporting period until settlement occurs, with the changes in fair value recorded in revenues. During the three months ended March 31, 2021, the Company recorded $nil in revenues associated with the toll milling arrangement signed with Hecla Mining Company (March 31, 2020 – $496). The Company recognized the following amounts related to revenue: Three months ended March 31 March 31 2021 2020 Note $ $ Concentrate revenues from contracts with customers 9,844 5,591 Provisional pricing adjustments on concentrate sales 18 (63 ) (526 ) Revenues from toll milling services - 496 Total revenues 9,781 5,561 The following table sets out the disaggregation of revenue by metal and form of sale: Three months ended March 31 March 31 2021 2020 $ $ Concentrate revenues: Silver 6,601 3,078 Lead 1,313 858 Zinc 1,867 1,130 Revenues from toll milling services - 496 Total revenues 9,781 5,561 The Company has offtake agreements with Trafigura Mexico, S.A. de C.V. (“Trafigura”), a subsidiary within the Trafigura group of companies. Due to the availability of alternative processing and commercialization options for its concentrate, the Company believes it would suffer no material adverse effect if it lost the services of Trafigura.

Expenses By Nature

Expenses By Nature	3 Months Ended
	Mar. 31, 2021
Replacement Options [Member]
Expenses By Nature	13. EXPENSES BY NATURE (a) Cost of sales consist of the following: Three months ended March 31 March 31 2021 2020 $ $ Direct mining and milling costs (1) 6,456 5,562 Changes in inventories (2) (303 ) (317 ) Depletion and amortization 1,790 1,269 Toll milling costs - 234 Cost of sales 7,943 6,748 (1) Direct mining and milling costs include personnel, general and administrative, fuel, electricity, maintenance and repair costs as well as operating supplies, external services and transport fees. (2) Changes in inventories reflect the net cost of ore and concentrate (i) sold during the current period but produced in a previous period (an addition to direct mining and milling costs) or (ii) produced but not sold in the current period (a deduction from direct mining and milling costs). (b) Administrative expenses consist of the following: Three months ended March 31 March 31 2021 2020 $ $ Office and overhead costs 606 409 Salaries and wages 712 401 Corporate development and legal 68 74 Public company costs 57 49 Administrative expenses 1,443 933 (c) Other expenses consist of the following: Three months ended March 31 March 31 2021 2020 $ $ Unrealized loss on marketable securities (Note 3) 469 33 Unrealized loss (gain) on purchase warrants (Note 3) 74 (14 ) Loss on disposal of assets (Note 6) - 188 Unrealized foreign exchange loss (Note 18) 132 536 Realized foreign exchange gain (63 ) (66 ) Interest income (4 ) (16 ) Management fee income (Note 6) (9 ) - Other 52 (56 ) Other expenses, net 651 605

Exploration Expense

Exploration Expense	3 Months Ended
	Mar. 31, 2021
RSU.
Exploration Expense	14. EXPLORATION EXPENSE Exploration expenses were incurred on the following projects: Three months ended March 31 March 31 2021 2020 $ $ Platosa 418 103 Evolución 162 203 Silver City 204 67 Kilgore 289 - 1,073 373

Finance Expenses

Finance Expenses	3 Months Ended
	Mar. 31, 2021
Finance Expenses
Finance Expenses	15. FINANCE EXPENSES Finance expenses consist of the following: Three months ended March 31 March 31 2021 2020 $ $ Interest expense - Debentures 648 4 Interest expense - other 30 237 Rehabilitation provision - accretion 18 13 Post-retirement benefits - accretion 8 - Unrealized loss on currency hedges 21 1,837 Finance expenses 725 2,091

Financial Instruments

Financial Instruments	3 Months Ended
	Mar. 31, 2021
Disclosure of nature and extent of risks arising from financial instruments [abstract]
Financial Instruments	16. FINANCIAL INSTRUMENTS Fair Values of non-derivative financial instruments All financial assets and financial liabilities, other than derivatives, are initially recognized at the fair value of consideration paid or received, net of transaction costs, as appropriate, and are subsequently carried at fair value or amortized cost. At March 31, 2021, the carrying amounts of trade and other payables and other current assets are considered to be reasonable approximations of their respective fair values due to the short-term nature of these instruments. The methods and assumptions used in estimating the fair value of other financial assets and liabilities are as follows: Embedded derivatives – provisional pricing Revenues from the sale of metals produced are based on provisional prices at the time of shipment. Variations between the price recorded at the time of sale and the actual final price received from the customer are caused by changes in market prices for metals sold and final settlement weights and assays, which result in an embedded derivative in accounts receivable. The embedded derivative is recorded at fair value each reporting period until settlement occurs, with the changes in fair value recorded to revenues. Fair Value Hierarchy The three levels of the fair value hierarchy are as follows: ● Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities; ● Level 2 – Inputs other than quoted prices that are observable for the asset or liability either directly or indirectly; and ● Level 3 – Inputs that are not based on observable market data March 31 December 31 Fair value 2021 2020 hierarchy $ $ Financial assets Fair value through profit and loss Marketable securities Level 1 1,690 2,138 Warrants Level 2 141 212 Trade receivables Level 2 1,254 1,782 Forward foreign exchange contracts Level 2 - 21 3,085 4,153 There were no transfers between levels 1, 2 or 3 during the three months ended March 31, 2021. Valuation techniques and inputs used to determine fair values include: ● Marketable securities - the use of quoted market prices ● Warrants - based on a Black-Scholes model which uses quoted observable inputs ● Provisional pricing receivables – key inputs are payable metal and future metal prices, marked-to-market based on a quoted forward price and final settlement weights and assays ● Forward foreign currency contracts – present value of future cash flows based on the forward exchange rates at the balance sheet date

Segment Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2021
Segment Reporting
Segment Reporting	17. SEGMENT REPORTING MEXICO CORPORATE TOTAL March 31 December 31 March 31 December 31 March 31 December 31 2021 2020 2021 2020 2021 2020 $ $ $ $ $ $ Property, plant and equipment 23,785 24,877 897 953 24,682 25,830 Capital expenditures (1,461 ) (7,620 ) (13 ) (48 ) (1,474 ) (7,668 ) Mineral rights 735 804 19,713 19,707 20,448 20,511 Total assets 60,440 63,062 8,692 10,217 69,132 73,279 Total liabilities 11,877 12,441 9,925 10,396 21,802 22,837 Three months ended March 31 March 31 2021 2020 $ $ MEXICO Revenues 9,781 5,561 Cost of sales (7,943 ) (6,748 ) Exploration (580 ) (306 ) Other income (expense) 521 (411 ) Finance expense (45 ) (1,850 ) Income tax expense - (906 ) Net income (loss) 1,734 (4,660 ) CORPORATE Corporate administrative expenses (2,342 ) (1,163 ) Exploration (493 ) (67 ) Other expense (1,172 ) (194 ) Finance expense (680 ) (241 ) Income tax recovery (expense) 31 (47 ) Net loss (4,656 ) (1,712 ) Net Loss (2,922 ) (6,372 )

Comparative Period Revision

Comparative Period Revision	3 Months Ended
	Mar. 31, 2021
Comparative Period Revision
Comparative Period Revision	18. COMPARATIVE PERIOD REVISION Foreign exchange differences on provisionally priced sales in Mexico have been revised in the comparative period to conform with the current period and Q4 2020 presentation. These foreign exchange differences are now presented in Other expenses (income) in the Condensed Consolidated Statements of Comprehensive Loss, rather than within the provisional pricing adjustment presented in Revenue. There is no impact to net loss and comprehensive loss, and cash flows are unchanged. The full year impact totaling $186 was adjusted for in the annual 2020 consolidated financial statements. Accordingly, there is no impact to the reported revenues and other expenses (income) in the consolidated financial statements for the year ended December 31, 2020. Three months ended Six months ended Nine months ended March 31 June 30 September 30 June 30 September 30 2020 2020 2020 2020 2020 $ $ $ $ $ Revenue As reported 6,615 891 9,667 7,506 17,173 Revision (1,054 ) (204 ) 190 (1,258 ) (1,068 ) Revised 5,561 687 9,857 6,248 16,105 Other expenses (income) As reported 1,659 (968 ) 744 691 1,435 Revision (1,054 ) (204 ) 190 (1,258 ) (1,068 ) Revised 605 (1,172 ) 934 (567 ) 367

Marketable Securities and War_2

Marketable Securities and Warrants (Tables)	3 Months Ended
	Mar. 31, 2021
Current and long-term lease liabilities.
Schedule of Fair Value of Marketable Securities and Warrants	The Wallbridge Shares and Warrants are measured at fair value with changes recorded in other income/expense. March 31 December 31 2021 2020 $ $ Marketable securities at fair value Opening balance 2,138 348 Additions - 995 Unrealized (loss) gain on revaluation (469 ) 645 Exchange differences 21 150 Closing balance 1,690 2,138 Warrants at fair value Opening balance 212 - Additions - 128 Unrealized (loss) gain on revaluation (74 ) 67 Exchange differences 3 17 Closing balance 141 212 Marketable securities and warrants 1,831 2,350

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Mar. 31, 2021
Disclosure Of Inventories Abstract
Schedule of Inventories	March 31 December 31 2021 2020 $ $ Ore stockpiles 393 463 Concentrate inventory 367 4 Production spare parts 2,699 2,441 Obsolescence Provision - spare parts (477 ) (523 ) 2,982 2,385

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	3 Months Ended
	Mar. 31, 2021
Disclosure of detailed information about property, plant and equipment [abstract]
Schedule of Property, Plant and Equipment	Assets Right Mining Mining Processing under of use properties equipment equipment construction assets Total $ $ $ $ $ $ At January 1, 2020 Cost 31,774 16,887 6,160 5,071 1,646 61,538 Accumulated amortization (20,198 ) (11,267 ) (5,036 ) - (219 ) (36,720 ) 11,576 5,620 1,124 5,071 1,427 24,818 Year ended December 31, 2020 Opening net book value 11,576 5,620 1,124 5,071 1,427 24,818 Additions 1,416 1,873 673 3,658 48 7,668 Reclassification 4,046 3,333 - (7,325 ) (54 ) - Depletion and amortization (2,191 ) (2,101 ) (298 ) - (202 ) (4,792 ) Exchange differences (2) (377 ) 164 (503 ) (882 ) (266 ) (1,864 ) Closing net book value 14,470 8,889 996 522 953 25,830 At December 31, 2020 Cost 36,400 21,576 6,075 522 1,640 66,213 Accumulated amortization (21,930 ) (12,687 ) (5,079 ) - (687 ) (40,383 ) 14,470 8,889 996 522 953 25,830 Period ended March 31, 2021 Opening net book value 14,470 8,889 996 522 953 25,830 Additions (1) 867 33 49 512 13 1,474 Depletion and amortization (1,048 ) (684 ) (49 ) - (61 ) (1,842 ) Exchange differences (2) (448 ) (275 ) (32 ) (17 ) (8 ) (780 ) Closing net book value 13,841 7,963 964 1,017 897 24,682 At March 31, 2021 Cost 36,398 20,950 5,930 1,017 1,645 65,940 Accumulated amortization (22,557 ) (12,987 ) (4,966 ) - (748 ) (41,258 ) 13,841 7,963 964 1,017 897 24,682 (1) During the three months ended March 31, 2021, the Company incurred $512 in sustaining capital expenditures recorded as assets under construction (March 31, 2020: $2,105), primarily relating to ventilation and dewatering systems at the Platosa Mine. The associated assets will be reclassified to their appropriate asset class when commissioned. (2) Unrealized foreign exchange losses on translation of Mexican peso assets at the period-end exchange rate.

Mineral Rights (Tables)

Mineral Rights (Tables)	3 Months Ended
	Mar. 31, 2021
Extractive Industries [Abstract]
Schedule of Mineral Rights	Platosa Beschefer Silver City Kilgore Oakley (Mexico) (Canada) (1) (Germany) (2) (Idaho) (3) (Idaho) (4) Total $ $ $ $ $ $ At January 1, 2020 Cost 3,785 1,428 245 - - 5,458 Accumulated amortization (2,782 ) - - - (2,782 ) 1,003 1,428 245 - - 2,676 Year ended December 31, 2020 Opening net book value 1,003 1,428 245 - - 2,676 Acquisitions - - 317 13,711 5,332 19,360 Additions - - - 45 32 77 Disposals - (1,348 ) - - - (1,348 ) Depletion and amortization (178 ) - - (178 ) Exchange differences (21 ) (80 ) 25 - - (76 ) Closing net book value 804 - 587 13,756 5,364 20,511 At December 31, 2020 Cost 3,721 - 587 13,756 5,364 23,428 Accumulated amortization (2,917 ) - - - - (2,917 ) 804 - 587 13,756 5,364 20,511 Period ended March 31, 2021 Opening net book value 804 - 587 13,756 5,364 20,511 Additions - - 75 - - 75 Payments received under earn-in agreement - - - - (75 ) (75 ) Depletion and amortization (60 ) - - - - (60 ) Exchange differences (9 ) - 6 - - (3 ) Closing net book value 735 - 668 13,756 5,289 20,448 At March 31, 2021 Cost 3,680 - 668 13,756 5,289 23,393 Accumulated amortization (2,945 ) - - - - (2,945 ) 735 - 668 13,756 5,289 20,448 (1) See Note 3. In accordance with the Company’s farm-out accounting policy, the initial fair value of the Wallbridge Consideration was credited to the Beschefer Mineral Rights and a loss on disposal ($188) was recorded in the condensed consolidated statement of comprehensive loss. (2) On September 24, 2019 the Company signed an option agreement (the “Globex Agreement”) with Globex Mining Enterprises Inc. (“Globex”) to acquire a 100% interest in the Braunsdorf exploration license for the Silver City Project in Saxony, Germany, pursuant to which the Company agreed to pay total aggregate consideration of C$500 in cash and issue common shares valued at C$1,600 over a period of three years. Upon completion of the payments and common share issuances the Company will grant Globex a gross metals royalty of 3% for precious metals and 2.5% for other metals, both of which may be reduced by 1% upon a payment of $1,500. Additional one-time payments of C$300 and C$700 will be made by the Company following any future announcement of a maiden resource on the property and upon achievement of commercial production from the project, respectively. The first issuance of 45,367 common shares (valued at C$225) and the first cash payment (C$100) were made on the effective date of the Globex Agreement and recorded as an addition to mineral rights ($245). On September 21, 2020, the second issuance of 65,657 common shares (valued at C$325) and the second cash payment (C$100) were made and recorded as an addition to mineral rights ($317). In March 2021, the Frauenstein, Mohorn and Oederan exploration licenses were granted to the Company following applications to the Sächsisches Oberbergamt (Saxon Mining Authority), increasing the Silver City ground position by 17,600 hectares. (3) On April 22, 2020, the Company acquired the Kilgore Gold Project as part of the Otis acquisition. The Company has a 100% interest in the Kilgore Gold property located in Clark County, Idaho, which consisted of 614 federal lode mining claims unencumbered by any underlying royalties. In Q4 2020, the Company staked 175 new claims expanding the Kilgore property by 28%. (4) On April 22, 2020, the Company acquired 100% ownership of the Oakley Project in Cassia County, Idaho as part of the Otis acquisition. The Oakley Project includes Blue Hill Creek, Matrix Creek, Cold Creek: ■ Blue Hill Creek (“BHC”) – 44 unpatented federal lode mining claims and an adjacent 80 acre Idaho state lease, subject to a 2% net smelter returns (“NSR”) royalty on gold. ■ Matrix Creek – 61 unpatented federal lode mining claims and a 320 acre mineral lease, subject to a 2% NSR on gold. The NSRs at BHC and Matrix Creek can be purchased for a total of $2,000. ■ Cold Creek – 117 unpatented federal lode mining claims.

Provisions (Tables)

Provisions (Tables)	3 Months Ended
	Mar. 31, 2021
Provisions [abstract]
Schedule of Provisions	Post-retirement Rehabilitation benefits (1) provision (2) Total $ $ $ Year ended December 31, 2020 Opening balance 617 1,626 2,243 Termination payments (113 ) - (113 ) Change in estimate 233 - 233 Accretion for the period 40 61 101 Exchange differences (125 ) (131 ) (256 ) Closing Balance 652 1,556 2,208 Period ended March 31, 2021 Opening balance 652 1,556 2,208 Accretion for the period 43 18 61 Exchange differences (36 ) (50 ) (86 ) Closing Balance 659 1,524 2,183 (1) Post-retirement benefits: The Company provides post-retirement benefits supplements as well as leaving indemnities to employees at the Mexican operations. Under Mexican labour law, the Company provides statutorily mandated severance benefits to its employees terminated under certain circumstances. Key financial assumptions used in the above estimate include an annual discount rate of 4.86% (December 31, 2020 – 4.86%), annual salary rate increase of 3.75% (December 31, 2020 – 3.75%) and minimum wage increase rate of 5.31% (December 31, 2020 – 5.31%) and the life of mine of approximately four years. (2) Rehabilitation provision: Key financial assumptions used in the above estimate include an annual discount rate of 4.73% (December 31, 2020 – 4.73%), Mexican inflation rate and the life of mine of approximately four years. The total undiscounted amount of estimated cash flows required to settle the Company’s obligations is $1,746 of which $892 relates to the Platosa mine and $854 relates to the Miguel Auza processing facility.

Convertible Debentures (Tables)

Convertible Debentures (Tables)	3 Months Ended
	Mar. 31, 2021
Convertible Debentures Abstract
Summary of Debt Component	The Company recorded interest expense of C$820 ($648) for the three months ended March 31, 2021. $ CAD $ USD Year ended December 31, 2020 Proceeds on issuance of Debenture 17,910 13,334 Transaction costs paid (768 ) (572 ) Portion allocated to equity - conversion option and other features (8,683 ) (6,464 ) Interest expense 1,594 1,222 Value of shares issued to settle interest payable (754 ) (588 ) Exchange differences - 351 Closing balance 9,299 7,283 Period ended March 31, 2021 Opening balance 9,299 7,283 Interest expense 820 648 Exchange differences - 81 Closing balance 10,119 8,012

Share Capital (Tables)

Share Capital (Tables)	3 Months Ended
	Mar. 31, 2021
Disclosure of classes of share capital [abstract]
Schedule of Authorized Share Capital	The Company’s authorized share capital consists of an unlimited number of common shares. Number of shares (000’s) $ Year ended December 31, 2020 Opening balance 22,491 114,840 Shares issued on exercise of stock options 261 602 Shares issued on exercise of RSUs and DSUs 382 1,627 Shares issued on exercise of warrants 2 8 Shares issued on acquisition of Otis Gold Corp (1) 8,131 16,370 Shares issued as part of Credit Facility (2) 107 180 Shares issued to settle payables (3) 671 1,738 Value of shares issued in asset acquisition (4) 66 246 Shares issued to settle interest on convertible debentures (5) 228 588 Balance at December 31, 2020 32,339 136,199 Period ended March 31, 2021 Opening balance 32,339 136,199 Shares issued on exercise of stock options 8 27 Shares issued on exercise of RSUs and DSUs 33 137 Balance at March 31, 2021 32,380 136,363 (1) On April 22, 2020, the Company completed the acquisition of Otis. Otis shareholders received 0.046 of a common share for each Otis common share held (the “Exchange Ratio”), resulting in the issuance of 8,130,630 common shares valued at the market price of C$2.85 per common share. (2) On March 16, 2020, the Company closed a US$6-million bridge-loan credit facility (the “Credit Facility”) with Sprott Private Resource Lending II (Collector), LP (“Sprott Lending”). The Credit Facility bore interest of 10% per annum, compounded and payable monthly, and was due and payable in full on or before September 14, 2020. In consideration for the Credit Facility, Excellon issued 107,291 common shares to Sprott Lending. The Company repaid the Credit Facility on August 4, 2020 on the closing of the Financing (Note 9). (3) During the second and third quarters of 2020, the Company issued 670,974 common shares in settlement of certain Otis transaction costs and Mexican trade payables totaling C$2,098, as approved by the TSX. An amount of $196 (C$261) was recorded in other expenses to reflect the difference between the market value of the common shares issued and the carrying amount of the payables settled. (4) On September 21, 2020 and in accordance with the Globex Agreement, the second issuance of 65,657 common shares (valued at C$325) and the second cash payment (C$100) were made and recorded as an addition to mineral rights (Note 6). (5) On December 31, 2020, the Company elected to pay the first interest payment on the Debentures (Note 9) in common shares valued at C$754 ($588).
Schedule of Outstanding Number and Weighted Average Exercise Prices	The outstanding number and weighted average exercise prices of equity-settled Stock Options, Warrants, Deferred Share Units (“DSUs”) and Restricted Share Units (“RSUs”) are as follows: Options Warrants Options Outstanding Weighted Average Exercise Price (CAD) Warrants Outstanding (2) Weighted Average Exercise Price (CAD) RSUs Outstanding DSUs Outstanding Outstanding at January 1, 2020 461,000 5.59 1,092,500 7.00 572,485 467,572 Granted/issued/acquired (1) 1,002,395 3.34 1,448,488 5.23 337,331 217,264 Exercised/settled (260,596 ) 1.93 (2,400 ) 3.45 (224,750 ) (193,507 ) Expired (332,359 ) 5.20 - - (91,332 ) - Forfeited (23,004 ) 4.26 - - (128,223 ) - Outstanding at December 31, 2020 847,437 4.21 2,538,588 6.00 465,511 491,330 Exercisable at December 31, 2020 548,009 4.52 2,538,588 6.00 - 98,417 Outstanding at January 1, 2021 847,437 4.21 2,538,588 6.00 465,511 491,330 Granted/issued 212,500 4.14 - - 412,649 110,000 Exercised/settled (7,500 ) 3.05 - - (38,117 ) - Expired (5,000 ) 8.75 - - - - Outstanding at March 31, 2021 1,047,437 4.19 2,538,588 6.00 840,043 601,330 Exercisable at March 31, 2021 631,017 4.49 2,538,588 6.00 - 98,417 (1) On April 22, 2020, the Company issued 531,895 Options and 305,060 Warrants (“$3.30 Warrants”) in replacement of Otis Options and Warrants outstanding at the date of acquiring Otis. In accordance with the Otis Stock Option Plan, 130,365 stock options expired on July 22, 2020, 90 days after the closing of the Transaction. (2) The Company has the following warrants outstanding: ● 1,092,400 warrants with an exercise price of C$7.00, expiring on August 27, 2021; ● 302,760 warrants with an exercise price of C$3.30, expiring on March 29, 2022; and ● 1,143,428 warrants with an exercise price of C$5.75, expiring on July 30, 2023 (Note 9).
Schedule of Options Outstanding and Exercisable	Options outstanding and exercisable are as follows: Exercise Price Range (CAD) Stock Options Outstanding Weighted Average Remaining Contractual Life (years) Stock Options Exercisable Weighted Average $ 2.00 to $3.99 494,987 2.17 289,860 3.08 $ 4.00 to $5.99 456,450 3.11 245,157 4.62 $ 6.00 to $7.99 15,000 1.16 15,000 7.63 $ 8.00 to $9.99 81,000 1.37 81,000 8.52 1,047,437 2.50 631,017 4.49
Schedule of Share Based Compensation Expense	Compensation expense is recognized over the vesting period of the grant with the corresponding equity impact recorded in contributed surplus. Share-based compensation expense comprises the following: Three months ended March 31 March 31 2021 2020 $ $ Stock options 203 34 RSU 141 38 DSU 421 77 765 149

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2021
Disclosure of contingent liabilities [abstract]
Summary of Significant Unrecognized Commitments	The following table summarizes the Company’s significant unrecognized commitments as of March 31, 2021: 2021 2022 2023 2024 2025 Total $ $ $ $ $ $ Exploration License (Silver City Project) - cash 79 158 - - - 237 Exploration License (Silver City Project) - shares 335 492 - 827 Concession holding fees 411 675 618 692 692 3,088 825 1,325 618 692 692 4,152

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Mar. 31, 2021
Revenue [abstract]
Schedule of Recognized Amounts Related to Revenue	The Company recognized the following amounts related to revenue: Three months ended March 31 March 31 2021 2020 Note $ $ Concentrate revenues from contracts with customers 9,844 5,591 Provisional pricing adjustments on concentrate sales 18 (63 ) (526 ) Revenues from toll milling services - 496 Total revenues 9,781 5,561
Schedule of Disaggregation of Revenue	The following table sets out the disaggregation of revenue by metal and form of sale: Three months ended March 31 March 31 2021 2020 $ $ Concentrate revenues: Silver 6,601 3,078 Lead 1,313 858 Zinc 1,867 1,130 Revenues from toll milling services - 496 Total revenues 9,781 5,561

Expenses By Nature (Tables)

Expenses By Nature (Tables)	3 Months Ended
	Mar. 31, 2021
Replacement Options [Member]
Schedule of Cost of Sales	(a) Cost of sales consist of the following: Three months ended March 31 March 31 2021 2020 $ $ Direct mining and milling costs (1) 6,456 5,562 Changes in inventories (2) (303 ) (317 ) Depletion and amortization 1,790 1,269 Toll milling costs - 234 Cost of sales 7,943 6,748 (1) Direct mining and milling costs include personnel, general and administrative, fuel, electricity, maintenance and repair costs as well as operating supplies, external services and transport fees. (2) Changes in inventories reflect the net cost of ore and concentrate (i) sold during the current period but produced in a previous period (an addition to direct mining and milling costs) or (ii) produced but not sold in the current period (a deduction from direct mining and milling costs).
Schedule of Administrative Expenses	(b) Administrative expenses consist of the following: Three months ended March 31 March 31 2021 2020 $ $ Office and overhead costs 606 409 Salaries and wages 712 401 Corporate development and legal 68 74 Public company costs 57 49 Administrative expenses 1,443 933
Schedule of Other Expenses	(c) Other expenses consist of the following: Three months ended March 31 March 31 2021 2020 $ $ Unrealized loss on marketable securities (Note 3) 469 33 Unrealized loss (gain) on purchase warrants (Note 3) 74 (14 ) Loss on disposal of assets (Note 6) - 188 Unrealized foreign exchange loss (Note 18) 132 536 Realized foreign exchange gain (63 ) (66 ) Interest income (4 ) (16 ) Management fee income (Note 6) (9 ) - Other 52 (56 ) Other expenses, net 651 605

Exploration Expense (Tables)

Exploration Expense (Tables)	3 Months Ended
	Mar. 31, 2021
RSU.
Schedule of Exploration Expense	Exploration expenses were incurred on the following projects: Three months ended March 31 March 31 2021 2020 $ $ Platosa 418 103 Evolución 162 203 Silver City 204 67 Kilgore 289 - 1,073 373

Finance Expenses (Tables)

Finance Expenses (Tables)	3 Months Ended
	Mar. 31, 2021
Finance Expenses
Schedule of Finance Expenses	Finance expenses consist of the following: Three months ended March 31 March 31 2021 2020 $ $ Interest expense - Debentures 648 4 Interest expense - other 30 237 Rehabilitation provision - accretion 18 13 Post-retirement benefits - accretion 8 - Unrealized loss on currency hedges 21 1,837 Finance expenses 725 2,091

Financial Instruments (Tables)

Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2021
Disclosure of nature and extent of risks arising from financial instruments [abstract]
Schedule of Three Levels of Fair Value Hierarchy	The three levels of the fair value hierarchy are as follows: ● Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities; ● Level 2 – Inputs other than quoted prices that are observable for the asset or liability either directly or indirectly; and ● Level 3 – Inputs that are not based on observable market data March 31 December 31 Fair value 2021 2020 hierarchy $ $ Financial assets Fair value through profit and loss Marketable securities Level 1 1,690 2,138 Warrants Level 2 141 212 Trade receivables Level 2 1,254 1,782 Forward foreign exchange contracts Level 2 - 21 3,085 4,153

Segment Reporting (Tables)

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2021
Segment Reporting
Schedule of Segment Reporting	MEXICO CORPORATE TOTAL March 31 December 31 March 31 December 31 March 31 December 31 2021 2020 2021 2020 2021 2020 $ $ $ $ $ $ Property, plant and equipment 23,785 24,877 897 953 24,682 25,830 Capital expenditures (1,461 ) (7,620 ) (13 ) (48 ) (1,474 ) (7,668 ) Mineral rights 735 804 19,713 19,707 20,448 20,511 Total assets 60,440 63,062 8,692 10,217 69,132 73,279 Total liabilities 11,877 12,441 9,925 10,396 21,802 22,837 Three months ended March 31 March 31 2021 2020 $ $ MEXICO Revenues 9,781 5,561 Cost of sales (7,943 ) (6,748 ) Exploration (580 ) (306 ) Other income (expense) 521 (411 ) Finance expense (45 ) (1,850 ) Income tax expense - (906 ) Net income (loss) 1,734 (4,660 ) CORPORATE Corporate administrative expenses (2,342 ) (1,163 ) Exploration (493 ) (67 ) Other expense (1,172 ) (194 ) Finance expense (680 ) (241 ) Income tax recovery (expense) 31 (47 ) Net loss (4,656 ) (1,712 ) Net Loss (2,922 ) (6,372 )

Comparative Period Revision (Ta

Comparative Period Revision (Tables)	3 Months Ended
	Mar. 31, 2021
Comparative Period Revision
Schedule of Consolidated Financial Statements	Accordingly, there is no impact to the reported revenues and other expenses (income) in the consolidated financial statements for the year ended December 31, 2020. Three months ended Six months ended Nine months ended March 31 June 30 September 30 June 30 September 30 2020 2020 2020 2020 2020 $ $ $ $ $ Revenue As reported 6,615 891 9,667 7,506 17,173 Revision (1,054 ) (204 ) 190 (1,258 ) (1,068 ) Revised 5,561 687 9,857 6,248 16,105 Other expenses (income) As reported 1,659 (968 ) 744 691 1,435 Revision (1,054 ) (204 ) 190 (1,258 ) (1,068 ) Revised 605 (1,172 ) 934 (567 ) 367

Marketable Securities and War_3

Marketable Securities and Warrants (Details Narrative) - Wallbridge Mining Company Ltd. [Member] - $ / shares	Mar. 17, 2020	Dec. 31, 2018
Option Agreement [Member]
Statement Line Items [Line Items]
Initial consideration of marketable securities		500,000
Amended Agreement [Member]
Statement Line Items [Line Items]
Additional number of shares received	3,000,000
Warrant term	5 years
Amended Agreement [Member] | Warrants [Member]
Statement Line Items [Line Items]
Warrant shares	500,000
Amended Agreement [Member] | Warrants [Member] | Canadian Dollars [Member]
Statement Line Items [Line Items]
Warrant strike price	$ 1

Marketable Securities and War_4

Marketable Securities and Warrants - Schedule of Fair Value of Marketable Securities and Warrants (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Current and long-term lease liabilities.
Marketable securities at fair value, Opening balance	$ 2,138	$ 348
Marketable securities at fair value, Additions		995
Marketable securities at fair value, Unrealized (loss) gain on revaluation	(469)	645
Marketable securities at fair value, Exchange differences	21	150
Marketable securities at fair value, Closing balance	1,690	2,138
Warrants at fair value, Opening balance	212
Warrants at fair value, Additions		128
Warrants at fair value, Unrealized (loss) gain on revaluation	(74)	67
Warrants at fair value, Exchange differences	3	17
Warrants at fair value, Closing balance	141	212
Marketable Securities and Warrants	$ 1,831	$ 2,350

Inventories - Schedule of Inven

Inventories - Schedule of Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Statement Line Items [Line Items]
Inventories	$ 2,982	$ 2,385
Ore Stockpiles [Member]
Statement Line Items [Line Items]
Inventories	393	463
Concentrate Inventory [Member]
Statement Line Items [Line Items]
Inventories	367	4
Production Spare Parts [Member]
Statement Line Items [Line Items]
Inventories	2,699	2,441
Obsolescence Provision - Spare Parts [Member]
Statement Line Items [Line Items]
Inventories	$ (477)	$ (523)

Property, Plant and Equipment -

Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
		Mar. 31, 2021		Dec. 31, 2020
Statement Line Items [Line Items]
Cost		$ 25,830		$ 61,538
Accumulated amortization		(40,383)		(36,720)
Opening net book value		25,830		24,818
Additions		1,474	[1]	7,668
Reclassification
Depletion and amortization		(1,842)		(4,792)
Exchange differences	[2]	(780)		(1,864)
Cost		24,682		25,830
Accumulated amortization		(41,258)		(40,383)
Closing net book value		24,682		25,830
Mining Properties [Member]
Statement Line Items [Line Items]
Cost		36,400		31,774
Accumulated amortization		(21,930)		(20,198)
Opening net book value		14,470		11,576
Additions		867	[1]	1,416
Reclassification				4,046
Depletion and amortization		(1,048)		(2,191)
Exchange differences	[2]	(448)		(377)
Cost		36,398		36,400
Accumulated amortization		(22,557)		(21,930)
Closing net book value		13,841		14,470
Mining Equipment [Member]
Statement Line Items [Line Items]
Cost		21,576		16,887
Accumulated amortization		(12,687)		(11,267)
Opening net book value		8,889		5,620
Additions		33	[1]	1,873
Reclassification				3,333
Depletion and amortization		(684)		(2,101)
Exchange differences	[2]	(275)		164
Cost		20,950		21,576
Accumulated amortization		(12,987)		(12,687)
Closing net book value		7,963		8,889
Processing Equipment [member]
Statement Line Items [Line Items]
Cost		6,075		6,160
Accumulated amortization		(5,079)		(5,036)
Opening net book value		996		1,124
Additions		49	[1]	673
Reclassification
Depletion and amortization		(49)		(298)
Exchange differences	[2]	(32)		(503)
Cost		5,930		6,075
Accumulated amortization		(4,966)		(5,079)
Closing net book value		964		996
Assets Under Construction [Member]
Statement Line Items [Line Items]
Cost		522		5,071
Accumulated amortization
Opening net book value		522		5,071
Additions		512	[1]	3,658
Reclassification				(7,325)
Depletion and amortization
Exchange differences	[2]	(17)		(882)
Cost		1,017		522
Accumulated amortization
Closing net book value		1,017		522
Right of Use Assets [Member]
Statement Line Items [Line Items]
Cost		1,640		1,646
Accumulated amortization		(687)		(219)
Opening net book value		953		1,427
Additions		13	[1]	48
Reclassification				(54)
Depletion and amortization		(61)		(202)
Exchange differences	[2]	(8)		(266)
Cost		1,645		1,640
Accumulated amortization		(748)		(687)
Closing net book value		$ 897		$ 953
[1]	During the three months ended March 31, 2021, the Company incurred $512 in sustaining capital expenditures recorded as assets under construction (March 31, 2020: $2,105), primarily relating to ventilation and dewatering systems at the Platosa Mine. The associated assets will be reclassified to their appropriate asset class when commissioned.
[2]	Unrealized foreign exchange losses on translation of Mexican peso assets at the period-end exchange rate.

Property, Plant and Equipment_2

Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disclosure of detailed information about property, plant and equipment [abstract]
Sustaining capital expenditures incurred	$ 512	$ 2,105

Mineral Rights (Details Narrati

Mineral Rights (Details Narrative) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)
Extractive Industries [Abstract]
Payment received earn-in agreement	$ 75

Mineral Rights - Schedule of Mi

Mineral Rights - Schedule of Mineral Rights (Details) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
		Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Statement Line Items [Line Items]
Cost, opening net book value		$ 23,428	$ 5,458	$ 5,458
Accumulated amortization, opening net book value		(2,917)	(2,782)	(2,782)
Opening net book value		20,511	2,676	2,676
Acquisitions				19,360
Additions		75		77
Payments received under earn-in agreement		(75)
Disposals				(1,348)
Depletion and amortization		(60)		(178)
Exchange differences		(3)		(76)
Cost, closing net book value		23,393		23,428
Accumulated amortization, closing net book value		(2,945)		(2,917)
Closing net book value		20,448		20,511
Mineral Rights Platosa (Mexico) [Member]
Statement Line Items [Line Items]
Cost, opening net book value		3,721	3,785	3,785
Accumulated amortization, opening net book value		(2,917)	(2,782)	(2,782)
Opening net book value		804	1,003	1,003
Acquisitions
Additions
Payments received under earn-in agreement
Disposals
Depletion and amortization		(60)		(178)
Exchange differences		(9)		(21)
Cost, closing net book value		3,680		3,721
Accumulated amortization, closing net book value		(2,945)		(2,917)
Closing net book value		735		804
Mineral Rights Beschefer (Canada) [Member]
Statement Line Items [Line Items]
Cost, opening net book value	[1]		1,428	1,428
Accumulated amortization, opening net book value	[1]
Opening net book value	[1]		1,428	1,428
Acquisitions	[1]
Additions	[1]
Payments received under earn-in agreement	[1]
Disposals	[1]			(1,348)
Depletion and amortization	[1]
Exchange differences	[1]			(80)
Cost, closing net book value	[1]
Accumulated amortization, closing net book value	[1]
Closing net book value	[1]
Mineral Rights Silver City (Germany) [Member]
Statement Line Items [Line Items]
Cost, opening net book value	[2]	587	245	245
Accumulated amortization, opening net book value	[2]
Opening net book value	[2]	587	245	245
Acquisitions	[2]			317
Additions	[2]	75
Payments received under earn-in agreement	[2]
Disposals	[2]
Depletion and amortization	[2]
Exchange differences	[2]	6		25
Cost, closing net book value	[2]	668		587
Accumulated amortization, closing net book value	[2]
Closing net book value	[2]	668		587
Mineral Rights Kilgore (Idaho) [Member]
Statement Line Items [Line Items]
Cost, opening net book value	[3]	13,756
Accumulated amortization, opening net book value	[3]
Opening net book value	[3]	13,756
Acquisitions	[3]			13,711
Additions	[3]			45
Payments received under earn-in agreement	[3]
Disposals	[3]
Depletion and amortization	[3]
Exchange differences	[3]
Cost, closing net book value	[3]	13,756		13,756
Accumulated amortization, closing net book value	[3]
Closing net book value	[3]	13,756		13,756
Mineral Rights Okaley (Idaho) [Member]
Statement Line Items [Line Items]
Cost, opening net book value	[4]	5,364
Accumulated amortization, opening net book value	[4]
Opening net book value	[4]	5,364
Acquisitions	[4]			5,332
Additions	[4]			32
Payments received under earn-in agreement	[4]	(75)
Disposals	[4]
Depletion and amortization	[4]
Exchange differences	[4]
Cost, closing net book value	[4]	5,289		5,364
Accumulated amortization, closing net book value	[4]
Closing net book value	[4]	$ 5,289		$ 5,364
[1]	See Note 3. In accordance with the Company's farm-out accounting policy, the initial fair value of the Wallbridge Consideration was credited to the Beschefer Mineral Rights and a loss on disposal ($188) was recorded in the condensed consolidated statement of comprehensive loss.
[2]	On September 24, 2019 the Company signed an option agreement (the "Globex Agreement") with Globex Mining Enterprises Inc. ("Globex") to acquire a 100% interest in the Braunsdorf exploration license for the Silver City Project in Saxony, Germany, pursuant to which the Company agreed to pay total aggregate consideration of C$500 in cash and issue common shares valued at C$1,600 over a period of three years. Upon completion of the payments and common share issuances the Company will grant Globex a gross metals royalty of 3% for precious metals and 2.5% for other metals, both of which may be reduced by 1% upon a payment of $1,500. Additional one-time payments of C$300 and C$700 will be made by the Company following any future announcement of a maiden resource on the property and upon achievement of commercial production from the project, respectively. The first issuance of 45,367 common shares (valued at C$225) and the first cash payment (C$100) were made on the effective date of the Globex Agreement and recorded as an addition to mineral rights ($245). On September 21, 2020, the second issuance of 65,657 common shares (valued at C$325) and the second cash payment (C$100) were made and recorded as an addition to mineral rights ($317). In March 2021, the Frauenstein, Mohorn and Oederan exploration licenses were granted to the Company following applications to the Sachsisches Oberbergamt (Saxon Mining Authority), increasing the Silver City ground position by 17,600 hectares.
[3]	On April 22, 2020, the Company acquired the Kilgore Gold Project as part of the Otis acquisition. The Company has a 100% interest in the Kilgore Gold property located in Clark County, Idaho, which consisted of 614 federal lode mining claims unencumbered by any underlying royalties. In Q4 2020, the Company staked 175 new claims expanding the Kilgore property by 28%.
[4]	On April 22, 2020, the Company acquired 100% ownership of the Oakley Project in Cassia County, Idaho as part of the Otis acquisition. The Oakley Project includes Blue Hill Creek, Matrix Creek, Cold Creek: Blue Hill Creek ("BHC") - 44 unpatented federal lode mining claims and an adjacent 80 acre Idaho state lease, subject to a 2% net smelter returns ("NSR") royalty on gold. Matrix Creek - 61 unpatented federal lode mining claims and a 320 acre mineral lease, subject to a 2% NSR on gold. The NSRs at BHC and Matrix Creek can be purchased for a total of $2,000. Cold Creek 117 unpatented federal lode mining claims.

Mineral Rights - Schedule of _2

Mineral Rights - Schedule of Mineral Rights (Details) (Parenthetical) - USD ($) $ in Thousands		Sep. 21, 2020	Apr. 22, 2020	Feb. 26, 2020	Sep. 24, 2019	Mar. 31, 2021	Dec. 31, 2020
Statement Line Items [Line Items]
Additions						$ 75	$ 77
Otis Gold Corp [Member]
Statement Line Items [Line Items]
Acquisition of equity, percentage			100.00%
Project descriptions			The Company acquired 100% ownership of the Oakley Project in Cassia County, Idaho as part of the Otis acquisition.
Mineral Rights Beschefer (Canada) [Member]
Statement Line Items [Line Items]
Additions	[1]
Beschefer Option Agreement [Member] | Wallbridge Mining Company Ltd. [Member] | Mineral Rights Beschefer (Canada) [Member]
Statement Line Items [Line Items]
Loss on disposal						$ 188
Globex Agreement [Member] | Globex Mining Enterprises Inc [Member] | Mineral Rights Silver City (Germany) [Member]
Statement Line Items [Line Items]
Acquisition of equity, percentage					100.00%
Royalty for precious metals					3.00%
Royalty for other metals					2.50%
Reduction on royalty description					Reduced by 1% upon a payment of $1,500
Addition one time payments					Additional one-time payments of C$300 and C$700 will be made by the Company following any future announcement of a maiden resource on the property and upon achievement of commercial production from the project, respectively.
Globex Agreement [Member] | Globex Mining Enterprises Inc [Member] | Mineral Rights Silver City (Germany) [Member] | First Issuance [Member]
Statement Line Items [Line Items]
Shares issued during the period for acquisition					45,367
Additions					$ 245
Globex Agreement [Member] | Globex Mining Enterprises Inc [Member] | Mineral Rights Silver City (Germany) [Member] | Second Issuance [Member]
Statement Line Items [Line Items]
Shares issued during the period for acquisition		65,657
Additions		$ 317
Globex Agreement [Member] | Globex Mining Enterprises Inc [Member] | Mineral Rights Silver City (Germany) [Member] | Canadian Dollars [Member]
Statement Line Items [Line Items]
Payment for acquisition					500
Shares issued during the period for acquisition, value					1,600
Globex Agreement [Member] | Globex Mining Enterprises Inc [Member] | Mineral Rights Silver City (Germany) [Member] | Canadian Dollars [Member] | First Issuance [Member]
Statement Line Items [Line Items]
Payment for acquisition					100
Shares issued during the period for acquisition, value					$ 225
Globex Agreement [Member] | Globex Mining Enterprises Inc [Member] | Mineral Rights Silver City (Germany) [Member] | Canadian Dollars [Member] | Second Issuance [Member]
Statement Line Items [Line Items]
Payment for acquisition		100
Shares issued during the period for acquisition, value		$ 325
Kilgore Gold Project [Member] | Otis Gold Corp [Member]
Statement Line Items [Line Items]
Acquisition of equity, percentage			100.00%
Project descriptions			The Company has a 100% interest in the Kilgore Gold property located in Clark County, Idaho, which consisted of 614 federal lode mining claims unencumbered by any underlying royalties. In Q4 2020, the Company staked 175 new claims expanding the Kilgore property by 28%.
Oakley Project [Member] | Blue Hill Creek [Member] | Otis Gold Corp [Member]
Statement Line Items [Line Items]
Project descriptions			Blue Hill Creek ("BHC") - 44 unpatented federal lode mining claims and an adjacent 80 acre Idaho state lease, subject to a 2% net smelter returns ("NSR") royalty on gold.
Oakley Project [Member] | Matrix Creek [Member] | Otis Gold Corp [Member]
Statement Line Items [Line Items]
Project descriptions			Matrix Creek - 61 unpatented federal lode mining claims and a 320 acre mineral lease, subject to a 2% NSR on gold. The NSRs at BHC and Matrix Creek can be purchased for a total of $2,000.
Oakley Project [Member] | Cold Creek [Member] | Otis Gold Corp [Member]
Statement Line Items [Line Items]
Project descriptions			Cold Creek - 117 unpatented federal lode mining claims.
Definitive Option Agreement [Member] | Centerra Gold Inc [Member] | Otis Gold Corp [Member]
Statement Line Items [Line Items]
Payment for acquisition				$ 550
Project descriptions				Otis entered into a definitive option agreement with Centerra Gold Inc. ("Centerra") whereby Centerra can earn up to a 70% interest in the Oakley Project in exchange for total exploration expenditures of $7 million and cash payments to the Company of $550 over a six-year period. During the term of the Oakley Agreement, Excellon is Project Manager and earns 10% of the approved exploration expenditures for technical oversight and project management.
Exploration expenditures				$ 7,000
[1]	See Note 3. In accordance with the Company's farm-out accounting policy, the initial fair value of the Wallbridge Consideration was credited to the Beschefer Mineral Rights and a loss on disposal ($188) was recorded in the condensed consolidated statement of comprehensive loss.

Trade and Other Payables (Detai

Trade and Other Payables (Details Narrative) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Statement Line Items [Line Items]
Accounts payable	$ 3,013	$ 4,252
Accruals and other payables	3,763	3,920
Mexico [Member]
Statement Line Items [Line Items]
Accounts payable	2,329	2,429
Top of range [member]
Statement Line Items [Line Items]
Accounts payable	$ 6,776	$ 8,172

Provisions - Schedule of Provis

Provisions - Schedule of Provisions (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2021	Dec. 31, 2020
Statement Line Items [Line Items]
Opening balance		$ 2,208	$ 2,243
Termination payments			(113)
Change in estimate			233
Accretion for the period		61	101
Exchange differences		(86)	(256)
Closing Balance		2,183	2,208
Post-retirement Benefits [Member]
Statement Line Items [Line Items]
Opening balance	[1]	652	617
Termination payments	[1]		(113)
Change in estimate	[1]		233
Accretion for the period	[1]	43	40
Exchange differences	[1]	(36)	(125)
Closing Balance	[1]	659	652
Rehabilitation Provision [Member]
Statement Line Items [Line Items]
Opening balance	[2]	1,556	1,626
Termination payments	[2]
Change in estimate	[2]
Accretion for the period	[2]	18	61
Exchange differences	[2]	(50)	(131)
Closing Balance	[2]	$ 1,524	$ 1,556
[1]	Post-retirement benefits: The Company provides post-retirement benefits supplements as well as leaving indemnities to employees at the Mexican operations. Under Mexican labour law, the Company provides statutorily mandated severance benefits to its employees terminated under certain circumstances. Key financial assumptions used in the above estimate include an annual discount rate of 4.86% (December 31, 2020 - 4.86%), annual salary rate increase of 3.75% (December 31, 2020 - 3.75%) and minimum wage increase rate of 5.31% (December 31, 2020 - 5.31%) and the life of mine of approximately four years.
[2]	Rehabilitation provision: Key financial assumptions used in the above estimate include an annual discount rate of 4.73% (December 31, 2020 - 4.73%), Mexican inflation rate and the life of mine of approximately four years. The total undiscounted amount of estimated cash flows required to settle the Company's obligations is $1,746 of which $892 relates to the Platosa mine and $854 relates to the Miguel Auza processing facility.

Provisions - Schedule of Prov_2

Provisions - Schedule of Provisions (Details) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Post-retirement Benefits [Member]
Statement Line Items [Line Items]
Expected annual discount rate	4.86%	4.86%
Expected annual salary rate increase	3.75%	3.75%
Minimum wage increase rate	5.31%	5.31%
Life of mine	4 years
Rehabilitation Provision [Member]
Statement Line Items [Line Items]
Expected annual discount rate	4.73%	4.73%
Life of mine	4 years
Undiscounted amount of obligations	$ 1,746
Rehabilitation Provision [Member] | Platosa Mine [Member]
Statement Line Items [Line Items]
Undiscounted amount of obligations	892
Rehabilitation Provision [Member] | Miguel Auza [Member]
Statement Line Items [Line Items]
Undiscounted amount of obligations	$ 854

Convertible Debentures (Details

Convertible Debentures (Details Narrative) $ / shares in Units, $ in Thousands		Jul. 30, 2020USD ($)shares$ / shares	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Statement Line Items [Line Items]
Proceeds from convertible debentures				$ 13,334
Transaction costs				(572)
Convertible debentures, interest payable settled with shares	[1]			588
Canadian Dollars [Member]
Statement Line Items [Line Items]
Proceeds from convertible debentures				17,910
Transaction costs				(768)
Convertible debentures, interest payable settled with shares				754
Secured Convertible Debentures [Member]
Statement Line Items [Line Items]
Debt term		36 months
Debt annual interest rate		5.75%
Debt effective annual rate		10.00%
Warrants to purchase common stock | shares		1,006,542
Debt maturity date		July 30, 2022
Warrant expiration date		Jul. 30, 2023
Proceeds from debentures		$ 12,800
Transaction costs		572
Fair value of debt		6,298
Residual portion of convertible option		4,751
Deferred tax recovery		$ 1,713
Convertible debentures, interest payable settled with shares			$ 648	588
Secured Convertible Debentures [Member] | Broker Warrant [Member]
Statement Line Items [Line Items]
Warrant expiration date		Jul. 30, 2023
Warrants granted | shares		136,887
Secured Convertible Debentures [Member] | Canadian Dollars [Member]
Statement Line Items [Line Items]
Proceeds from convertible debentures		$ 17,910
Debt conversion price | $ / shares		$ 5.30
Warrant exercise price | $ / shares		$ 5.75
Proceeds from debentures		$ 17,100
Transaction costs		768
Fair value of debt		8,459
Residual portion of convertible option		6,382
Deferred tax recovery		$ 2,301
Convertible debentures, interest payable settled with shares			$ 820	$ 754
Secured Convertible Debentures [Member] | Canadian Dollars [Member] | Broker Warrant [Member]
Statement Line Items [Line Items]
Warrant exercise price | $ / shares		$ 5.75
Secured Convertible Debentures [Member] | Canadian Dollars [Member] | Top of range [member]
Statement Line Items [Line Items]
Debt conversion price | $ / shares		$ 12.50
[1]	On December 31, 2020, the Company elected to pay the first interest payment on the Debentures (Note 9) in common shares valued at C$754 ($588).

Convertible Debentures - Summar

Convertible Debentures - Summary of Debt Component (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2021	Dec. 31, 2020
Statement Line Items [Line Items]
Convertible debentures		$ 7,283
Proceeds on issuance of Debenture			13,334
Transaction costs paid			(572)
Portion allocated to equity - conversion option and other features			(6,464)
Interest expense		648	1,222
Value of shares issued to settle interest payable	[1]		(588)
Exchange differences		81	351
Convertible debentures		8,012	7,283
Canadian Dollars [Member]
Statement Line Items [Line Items]
Convertible debentures		9,299
Proceeds on issuance of Debenture			17,910
Transaction costs paid			(768)
Portion allocated to equity - conversion option and other features			(8,683)
Interest expense		820	1,594
Value of shares issued to settle interest payable			(754)
Exchange differences
Convertible debentures		$ 10,119	$ 9,299
[1]	On December 31, 2020, the Company elected to pay the first interest payment on the Debentures (Note 9) in common shares valued at C$754 ($588).

Share Capital - Schedule of Aut

Share Capital - Schedule of Authorized Share Capital (Details) - USD ($) $ in Thousands		3 Months Ended			12 Months Ended
		Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2020
Equity
Opening balance		32,339,000			22,491,000
Opening balance, value		$ 136,199			$ 114,840
Shares issued on exercise of stock options		8,000			261,000
Shares issued on exercise of stock options, value		$ 27			$ 602
Shares issued on exercise of RSUs and DSUs		33,000			382,000
Shares issued on exercise of RSUs and DSUs, value		$ 137			$ 1,627
Shares issued on exercise of warrants					2,000
Shares issued on exercise of warrants, value					$ 8
Shares issued on acquisition of Otis Gold Corp	[1]				8,131,000
Shares issued on acquisition of Otis Gold Corp, value	[1]				$ 16,370
Shares issued as part of Credit Facility	[2]				107,000
Shares issued as part of Credit Facility, value	[2]				$ 180
Shares issued to settle payables			670,974	670,974	671,000	[3]
Shares issued to settle payables, value	[3]				$ 1,738
Value of shares issued in asset acquisition	[4]				66,000
Value of shares issued in asset acquisition, value	[4]				$ 246
Shares issued to settle interest on convertible debentures	[5]				228,000
Shares issued to settle interest on convertible debentures, value	[5]				$ 588
Ending balance		32,380,000			32,339,000
Ending balance, value		$ 136,363			$ 136,199
[1]	On April 22, 2020, the Company completed the acquisition of Otis. Otis shareholders received 0.046 of a common share for each Otis common share held (the "Exchange Ratio"), resulting in the issuance of 8,130,630 common shares valued at the market price of C$2.85 per common share.
[2]	On March 16, 2020, the Company closed a US$6-million bridge-loan credit facility (the "Credit Facility") with Sprott Private Resource Lending II (Collector), LP ("Sprott Lending"). The Credit Facility bore interest of 10% per annum, compounded and payable monthly, and was due and payable in full on or before September 14, 2020. In consideration for the Credit Facility, Excellon issued 107,291 common shares to Sprott Lending. The Company repaid the Credit Facility on August 4, 2020 on the closing of the Financing (Note 9).
[3]	During the second and third quarters of 2020, the Company issued 670,974 common shares in settlement of certain Otis transaction costs and Mexican trade payables totaling C$2,098, as approved by the TSX. An amount of $196 (C$261) was recorded in other expenses to reflect the difference between the market value of the common shares issued and the carrying amount of the payables settled.
[4]	On September 21, 2020 and in accordance with the Globex Agreement, the second issuance of 65,657 common shares (valued at C$325) and the second cash payment (C$100) were made and recorded as an addition to mineral rights (Note 6).
[5]	On December 31, 2020, the Company elected to pay the first interest payment on the Debentures (Note 9) in common shares valued at C$754 ($588).

Share Capital - Schedule of A_2

Share Capital - Schedule of Authorized Share Capital (Details) (Parenthetical) - USD ($) $ / shares in Units, $ in Thousands		Apr. 22, 2020	Mar. 16, 2020	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2020		Sep. 21, 2020
Statement Line Items [Line Items]
Shares issued to settle payables, shares					670,974	670,974	671,000	[1]
Shares issued to settle payables	[1]						$ 1,738
Other expenses				$ 196
Debentures [Member]
Statement Line Items [Line Items]
Value of common shares issued							588
Globex Agreement [Member]
Statement Line Items [Line Items]
Number of common shares issued									65,657
Sprott Private Resource Lending II [Member]
Statement Line Items [Line Items]
Credit facility loan amount			$ 6,000
Credit facility interest rate			10.00%
Number of common stock issued for credit facility			107,291
Canadian Dollars [Member]
Statement Line Items [Line Items]
Shares issued to settle payables					$ 2,098	$ 2,098
Other expenses				$ 261
Canadian Dollars [Member] | Debentures [Member]
Statement Line Items [Line Items]
Value of common shares issued							754
Canadian Dollars [Member] | Globex Agreement [Member]
Statement Line Items [Line Items]
Value of common shares issued									325
Cash payment									$ 100
Otis Gold Corp [Member] | Canadian Dollars [Member]
Statement Line Items [Line Items]
Price per share		$ 2.85
Otis Gold Corp [Member] | Exchange Ratio [Member]
Statement Line Items [Line Items]
Price per share		$ 0.046
Shares issued during the period for acquisition		8,130,630
[1]	During the second and third quarters of 2020, the Company issued 670,974 common shares in settlement of certain Otis transaction costs and Mexican trade payables totaling C$2,098, as approved by the TSX. An amount of $196 (C$261) was recorded in other expenses to reflect the difference between the market value of the common shares issued and the carrying amount of the payables settled.

Share Capital - Schedule of Out

Share Capital - Schedule of Outstanding Number and Weighted Average Exercise Prices (Details)		3 Months Ended	12 Months Ended
		Mar. 31, 2021shares$ / shares	Dec. 31, 2020shares$ / shares
Statement Line Items [Line Items]
Outstanding, Beginning Balance		847,437	461,000
Granted/issued/acquired (Note 5)		212,500	1,002,395	[1]
Exercised/settled		(7,500)	(260,596)
Expired		(5,000)	(332,359)
Forfeited			(23,004)
Outstanding, Ending Balance		1,047,437	847,437
Exercisable, Ending Balance		631,017	548,009
Restricted Stock Units (RSUs) [Member]
Statement Line Items [Line Items]
Outstanding, Beginning Balance		465,511	572,485
Granted/issued/acquired (Note 5)		412,649	337,331	[1]
Exercised/settled		(38,117)	(224,750)
Expired			(91,332)
Forfeited			(128,223)
Outstanding, Ending Balance		840,043	465,511
Exercisable, Ending Balance
Deferred Stock Units (DSUs) [Member]
Statement Line Items [Line Items]
Outstanding, Beginning Balance		491,330	467,572
Granted/issued/acquired (Note 5)		110,000	217,264	[1]
Exercised/settled			(193,507)
Expired
Forfeited
Outstanding, Ending Balance		601,330	491,330
Exercisable, Ending Balance		98,417	98,417
Warrants [Member]
Statement Line Items [Line Items]
Outstanding, Beginning Balance	[2]	2,538,588	1,092,500
Granted/issued/acquired (Note 5)	[2]		1,448,488	[1]
Exercised/settled	[2]		(2,400)
Expired	[2]
Forfeited	[2]
Outstanding, Ending Balance	[2]	2,538,588	2,538,588
Exercisable, Ending Balance	[2]	2,538,588	2,538,588
Canadian Dollars [Member]
Statement Line Items [Line Items]
Weighted Average Exercise Price, Beginning Balance | $ / shares		$ 4.21	$ 5.59
Weighted Average Exercise Price, Granted/issued/acquired (Note 5) | $ / shares		4.14	3.34	[1]
Weighted Average Exercise Price, Exercised/settled | $ / shares		3.05	1.93
Weighted Average Exercise Price, Expired | $ / shares		8.75	5.20
Weighted Average Exercise Price, Forfeited | $ / shares			4.26
Weighted Average Exercise Price, Ending Balance | $ / shares		4.19	4.21
Weighted Average Exercise Price Options Vested and Exercisable, Ending Balance | $ / shares		4.49	4.52
Canadian Dollars [Member] | Warrants [Member]
Statement Line Items [Line Items]
Weighted Average Exercise Price, Beginning Balance | $ / shares		6	7
Weighted Average Exercise Price, Granted/issued/acquired (Note 5) | $ / shares			5.23	[1]
Weighted Average Exercise Price, Exercised/settled | $ / shares			3.45
Weighted Average Exercise Price, Expired | $ / shares
Weighted Average Exercise Price, Forfeited | $ / shares
Weighted Average Exercise Price, Ending Balance | $ / shares		6	6
Weighted Average Exercise Price Options Vested and Exercisable, Ending Balance | $ / shares		$ 6	$ 6
[1]	On April 22, 2020, the Company issued 531,895 Options and 305,060 Warrants ("$3.30 Warrants") in replacement of Otis Options and Warrants outstanding at the date of acquiring Otis. In accordance with the Otis Stock Option Plan, 130,365 stock options expired on July 22, 2020, 90 days after the closing of the Transaction.
[2]	The Company has the following warrants outstanding:1,092,400 warrants with an exercise price of C$7.00, expiring on August 27, 2021; 302,760 warrants with an exercise price of C$3.30, expiring on March 29, 2022; and 1,143,428 warrants with an exercise price of C$5.75, expiring on July 30, 2023 (Note 9).

Share Capital - Schedule of O_2

Share Capital - Schedule of Outstanding Number and Weighted Average Exercise Prices (Details) (Parenthetical) - shares	Apr. 22, 2020	Mar. 31, 2021	Dec. 31, 2020
Statement Line Items [Line Items]
Issuance of stock option		212,500	1,002,395	[1]
Number of stock options expired		5,000	332,359
Stock Options [Member]
Statement Line Items [Line Items]
Issuance of stock option	531,895
Number of stock options expired	130,365
Stock option expired	Jul. 22, 2020
Warrants Exercise Price 3.30 Warrants [Member]
Statement Line Items [Line Items]
Issuance of warrants	305,060
Warrants expiration date	Mar. 29, 2022
Warrants Exercise Price 7.00 [Member]
Statement Line Items [Line Items]
Issuance of warrants	1,092,400
Warrants expiration date	Aug. 27, 2021
Warrants Exercise Price 5.75 [Member]
Statement Line Items [Line Items]
Issuance of warrants	1,143,428
Warrants expiration date	Jul. 30, 2023
[1]	On April 22, 2020, the Company issued 531,895 Options and 305,060 Warrants ("$3.30 Warrants") in replacement of Otis Options and Warrants outstanding at the date of acquiring Otis. In accordance with the Otis Stock Option Plan, 130,365 stock options expired on July 22, 2020, 90 days after the closing of the Transaction.

Share Capital - Schedule of Opt

Share Capital - Schedule of Options Outstanding and Exercisable (Details)	3 Months Ended
	Mar. 31, 2021shares$ / shares	Dec. 31, 2020shares$ / shares	Dec. 31, 2019shares
Statement Line Items [Line Items]
Stock Options Outstanding | shares	1,047,437	847,437	461,000
Weighted Average Remaining Contractual Life (years)	2 years 6 months
Stock Options Exercisable, Ending Balance | shares	631,017	548,009
Canadian Dollars [Member]
Statement Line Items [Line Items]
Weighted Average Exercise Price Options Vested and Exercisable, Ending Balance	$ 4.49	$ 4.52
Exercise Price One [Member]
Statement Line Items [Line Items]
Stock Options Outstanding | shares	494,987
Weighted Average Remaining Contractual Life (years)	2 years 2 months 1 day
Stock Options Exercisable, Ending Balance | shares	289,860
Exercise Price One [Member] | Canadian Dollars [Member]
Statement Line Items [Line Items]
Weighted Average Exercise Price Options Vested and Exercisable, Ending Balance	$ 3.08
Exercise Price One [Member] | Canadian Dollars [Member] | Top of range [member]
Statement Line Items [Line Items]
Exercise Price Range	2
Exercise Price One [Member] | Canadian Dollars [Member] | Bottom of range [member]
Statement Line Items [Line Items]
Exercise Price Range	$ 3.99
Exercise Price Two [Member]
Statement Line Items [Line Items]
Stock Options Outstanding | shares	456,450
Weighted Average Remaining Contractual Life (years)	3 years 1 month 9 days
Stock Options Exercisable, Ending Balance | shares	245,157
Exercise Price Two [Member] | Canadian Dollars [Member]
Statement Line Items [Line Items]
Weighted Average Exercise Price Options Vested and Exercisable, Ending Balance	$ 4.62
Exercise Price Two [Member] | Canadian Dollars [Member] | Top of range [member]
Statement Line Items [Line Items]
Exercise Price Range	5.99
Exercise Price Two [Member] | Canadian Dollars [Member] | Bottom of range [member]
Statement Line Items [Line Items]
Exercise Price Range	$ 4
Exercise Price Three [Member]
Statement Line Items [Line Items]
Stock Options Outstanding | shares	15,000
Weighted Average Remaining Contractual Life (years)	1 year 1 month 27 days
Stock Options Exercisable, Ending Balance | shares	15,000
Exercise Price Three [Member] | Canadian Dollars [Member]
Statement Line Items [Line Items]
Weighted Average Exercise Price Options Vested and Exercisable, Ending Balance	$ 7.63
Exercise Price Three [Member] | Canadian Dollars [Member] | Top of range [member]
Statement Line Items [Line Items]
Exercise Price Range	7.99
Exercise Price Three [Member] | Canadian Dollars [Member] | Bottom of range [member]
Statement Line Items [Line Items]
Exercise Price Range	$ 6
Exercise Price Four [Member]
Statement Line Items [Line Items]
Stock Options Outstanding | shares	81,000
Weighted Average Remaining Contractual Life (years)	1 year 4 months 13 days
Stock Options Exercisable, Ending Balance | shares	81,000
Exercise Price Four [Member] | Canadian Dollars [Member]
Statement Line Items [Line Items]
Weighted Average Exercise Price Options Vested and Exercisable, Ending Balance	$ 8.52
Exercise Price Four [Member] | Canadian Dollars [Member] | Top of range [member]
Statement Line Items [Line Items]
Exercise Price Range	9.99
Exercise Price Four [Member] | Canadian Dollars [Member] | Bottom of range [member]
Statement Line Items [Line Items]
Exercise Price Range	$ 8

Share Capital - Schedule of Sha

Share Capital - Schedule of Share Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Line Items [Line Items]
Share-based compensation expenses	$ 765	$ 149
Stock Options [Member]
Statement Line Items [Line Items]
Share-based compensation expenses	203	34
Restricted Stock Units (RSUs) [Member]
Statement Line Items [Line Items]
Share-based compensation expenses	141	38
Deferred Stock Units (DSUs) [Member]
Statement Line Items [Line Items]
Share-based compensation expenses	$ 421	$ 77

Commitments and Contingencies_2

Commitments and Contingencies (Details Narrative) - Platosa Project Net Smelter Return [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Statement Line Items [Line Items]
Interest rate description	The NSR bears a rate of either (a) 1.25% in respect of manto or mineralization other than skarn mineralization or (b) 0.50% in respect of skarn or "Source" mineralization
Minimum payment for plaintiff	$ 2,500
Interest rate of plaintiff	3.00%
Payment for royalty	$ 500
Accrued labour disputes	$ 126	$ 142

Commitments and Contingencies -

Commitments and Contingencies - Summary of Significant Unrecognized Commitments (Details) $ in Thousands	Mar. 31, 2021USD ($)
Statement Line Items [Line Items]
Exploration License (Silver City Project) - Cash	$ 237
Exploration License (Silver City Project) - Shares	827
Concession holding fees	3,088
Commitments and contingencies	4,152
2021 [Member]
Statement Line Items [Line Items]
Exploration License (Silver City Project) - Cash	79
Exploration License (Silver City Project) - Shares	335
Concession holding fees	411
Commitments and contingencies	825
2022 [Member]
Statement Line Items [Line Items]
Exploration License (Silver City Project) - Cash	158
Exploration License (Silver City Project) - Shares	492
Concession holding fees	675
Commitments and contingencies	1,325
2023 [Member]
Statement Line Items [Line Items]
Exploration License (Silver City Project) - Cash
Exploration License (Silver City Project) - Shares
Concession holding fees	618
Commitments and contingencies	618
2024 [Member]
Statement Line Items [Line Items]
Exploration License (Silver City Project) - Cash
Exploration License (Silver City Project) - Shares
Concession holding fees	692
Commitments and contingencies	692
2025 [Member]
Statement Line Items [Line Items]
Exploration License (Silver City Project) - Cash
Exploration License (Silver City Project) - Shares
Concession holding fees	692
Commitments and contingencies	$ 692

Revenues (Details Narrative)

Revenues (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Line Items [Line Items]
Revenues	$ 9,781	$ 5,561
Toll Milling Arrangement [Member]
Statement Line Items [Line Items]
Revenues		$ 496

Revenues - Schedule of Recogniz

Revenues - Schedule of Recognized Amounts Related to Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue [abstract]
Concentrate revenues from contracts with customers	$ 9,844	$ 5,591
Provisional pricing adjustments on concentrate sales	(63)	(526)
Revenues from toll milling services		496
Total revenues	$ 9,781	$ 5,561

Revenues - Schedule of Disaggre

Revenues - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Line Items [Line Items]
Total revenues	$ 9,781	$ 5,561
Revenues From Toll Milling Services [Member]
Statement Line Items [Line Items]
Total revenues		496
Concentrate Revenues From Contracts With Customers: Silver [Member]
Statement Line Items [Line Items]
Total revenues	6,601	3,078
Concentrate Revenues From Contracts With Customers: Lead [Member]
Statement Line Items [Line Items]
Total revenues	1,313	858
Concentrate Revenues From Contracts With Customers: Zinc [Member]
Statement Line Items [Line Items]
Total revenues	$ 1,867	$ 1,130

Expenses By Nature - Schedule o

Expenses By Nature - Schedule of Cost of Sales (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Replacement Options [Member]
Direct mining and milling costs	[1]	$ 6,456	$ 5,562
Changes in inventories	[2]	(303)	(317)
Depletion and amortization		1,790	1,269
Toll milling costs			234
Cost of sales		$ 7,943	$ 6,748
[1]	Direct mining and milling costs include personnel, general and administrative, fuel, electricity, maintenance and repair costs as well as operating supplies, external services and transport fees.
[2]	Changes in inventories reflect the net cost of ore and concentrate (i) sold during the current period but produced in a previous period (an addition to direct mining and milling costs) or (ii) produced but not sold in the current period (a deduction from direct mining and milling costs).

Expenses By Nature - Schedule_2

Expenses By Nature - Schedule of Administrative Expenses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Replacement Options [Member]
Office and overhead costs	$ 606	$ 409
Salaries and wages	712	401
Corporate development and legal	68	74
Public company costs	57	49
Administrative expenses	$ 1,443	$ 933

Expenses By Nature - Schedule_3

Expenses By Nature - Schedule of Other Expenses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Replacement Options [Member]
Unrealized loss on marketable securities (Note 3)	$ 469	$ 33
Unrealized loss (gain) on purchase warrants (Note 3)	74	(14)
Loss on disposal of assets (Note 6)		188
Unrealized foreign exchange loss (Note 18)	132	536
Realized foreign exchange gain	(63)	(66)
Interest income	(4)	(16)
Management fee income (Note 6)	(9)
Other	52	(56)
Other expenses, net	$ 651	$ 605

Exploration Expense - Schedule

Exploration Expense - Schedule of Exploration Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Line Items [Line Items]
Exploration	$ 1,073	$ 373
Platosa [Member]
Statement Line Items [Line Items]
Exploration	418	103
Evolucion [Member]
Statement Line Items [Line Items]
Exploration	162	203
Silver City [Member]
Statement Line Items [Line Items]
Exploration	204	67
Kilgore [Member]
Statement Line Items [Line Items]
Exploration	$ 289

Finance Expenses - Schedule of

Finance Expenses - Schedule of Finance Expenses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Finance Expenses
Interest expense - Debentures	$ 648	$ 4
Interest expense - other	30	237
Rehabilitation provision - accretion	18	13
Post-retirement benefits - accretion	8
Unrealized loss on currency hedges	21	1,837
Finance expenses	$ 725	$ 2,091

Financial Instruments - Schedul

Financial Instruments - Schedule of Three Levels of Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Statement Line Items [Line Items]
Financial assets	$ 3,085	$ 4,153
Level 1 of Fair Value Hierarchy [Member] | Marketable Securities [Member]
Statement Line Items [Line Items]
Financial assets	1,690	2,138
Level 2 of Fair Value Hierarchy [Member] | Forward Foreign Exchange Contracts [Member]
Statement Line Items [Line Items]
Financial assets		21
Level 2 of Fair Value Hierarchy [Member] | Warrants [Member]
Statement Line Items [Line Items]
Financial assets	141	212
Level 2 of Fair Value Hierarchy [Member] | Trade Receivables [Member]
Statement Line Items [Line Items]
Financial assets	$ 1,254	$ 1,782

Segment Reporting - Schedule of

Segment Reporting - Schedule of Segment Reporting (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended
	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Statement Line Items [Line Items]
Property, plant and equipment	$ 24,682						$ 25,830	$ 61,538
Capital expenditures	(1,474)						(7,668)
Mineral rights	20,448						20,511
Total assets	69,132						73,279
Total liabilities	21,802						22,837
Revenues	9,781	$ 9,667	$ 891	$ 5,561	$ 7,506	$ 17,173
Cost of sales	(7,943)			(6,748)
Exploration	(1,073)			(373)
Income tax recovery (expense)	(31)			953
Corporate administrative expenses	1,443			933
Net income (loss)	(2,922)			(6,372)
CORPORATE [Member]
Statement Line Items [Line Items]
Property, plant and equipment	897						953
Capital expenditures	(13)						(48)
Mineral rights	19,713						19,707
Total assets	8,692						10,217
Total liabilities	9,925						10,396
Exploration	(493)			(67)
Other income (expense)	(1,172)			(194)
Finance expense	(680)			(241)
Income tax recovery (expense)	31			(47)
Corporate administrative expenses	(2,342)			(1,163)
Net income (loss)	(4,656)			(1,712)
Mexico [Member]
Statement Line Items [Line Items]
Property, plant and equipment	23,785						24,877
Capital expenditures	(1,461)						(7,620)
Mineral rights	735						804
Total assets	60,440						63,062
Total liabilities	11,877						$ 12,441
Revenues	9,781			5,561
Cost of sales	(7,943)			(6,748)
Exploration	(580)			(306)
Other income (expense)	521			(411)
Finance expense	(45)			(1,850)
Income tax recovery (expense)				(906)
Net income (loss)	$ 1,734			$ (4,660)

Comparative Period Revision (De

Comparative Period Revision (Details Narrative) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Comparative Period Revision
Adjustment for financial statement	$ 186

Comparative Period Revision - S

Comparative Period Revision - Schedule of Consolidated Financial Statements (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended
	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020	Sep. 30, 2020
Statement Line Items [Line Items]
Revenue	$ 9,781	$ 9,667	$ 891	$ 5,561	$ 7,506	$ 17,173
Other expenses (income)	$ (651)	744	(968)	(605)	691	1,435
Revision [Member]
Statement Line Items [Line Items]
Revenue		190	(204)	(1,054)	(1,258)	(1,068)
Other expenses (income)		190	(204)	(1,054)	(1,258)	(1,068)
Revised [Member]
Statement Line Items [Line Items]
Revenue		9,857	687	5,561	6,248	16,105
Other expenses (income)		$ 934	$ (1,172)	$ 605	$ (567)	$ 367