Meta Materials (MMATQ) 10-Q 15 Nov 21 2021 Q3 Quarterly report Financial data

Cover Page

Cover Page	9 Months Ended
	Sep. 30, 2021shares
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Entity Registrant Name	Meta Materials Inc.
Entity Central Index Key	0001431959
Entity File Number	001-36247
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	false
Document Quarterly Report	true
Document Transition Report	false
Entity Tax Identification Number	74-3237581
Entity Incorporation, State or Country Code	NV
Entity Address, Address Line One	1 Research Drive
Entity Address, City or Town	Dartmouth
Entity Address, State or Province	NS
Entity Address, Postal Zip Code	B2Y 4M9
City Area Code	902
Local Phone Number	482-5729
Entity Common Stock, Shares Outstanding	281,200,905
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	MMAT
Security Exchange Name	NASDAQ

Condensed Consolidated Interim

Condensed Consolidated Interim Balance Sheets - USD ($)		Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents		$ 140,796,052	$ 1,395,683
Restricted Cash		421,817
Grants receivable		285,063	327,868
Accounts receivable		96,848	22,833
Inventory		358,964	463,382
Prepaid expenses and other current assets		3,262,595	514,204
Assets held for sale		73,650,140
Due from related parties		64,708
Total current assets		218,936,187	2,723,970
Intangible assets, net		4,642,904	4,476,614
Property, plant and equipment, net		7,525,989	2,761,171
Operating lease right-of-use assets		4,775,130	270,581
Goodwill		218,828,518
Total assets		454,708,728	10,232,336
Current liabilities
Trade and other payables		6,556,665	2,940,452
Due to related party			245,467
Current portion of long-term debt		532,346	290,544
Current portion of deferred revenues		1,186,885	1,239,927
Current portion of deferred government assistance		842,425	779,578
Preferred stock liability		77,906,354
Current portion of operating lease liabilities		330,867	150,802
Asset retirement obligations		21,937
Unsecured convertible promissory notes			1,203,235
Secured convertible debentures			5,545,470
Total current liabilities		87,377,479	12,395,475
Deferred revenues		637,559	804,143
Deferred government assistance		38,869	146,510
Deferred tax liability		131,907	318,054
Unsecured convertible debentures			1,825,389
Long-term operating lease liabilities		2,423,123	119,779
Funding obligation		868,169	776,884
Long-term debt		2,698,515	2,743,504
Total liabilities		94,175,621	19,129,738
Stockholders' equity (deficit)
Common stock - $0.001 par value; 1,000,000,000 shares authorized, 281,200,905 shares issued and outstanding at September 30, 2021, and $Nil par value; unlimited shares authorized, 154,163,975 shares issued and outstanding at December 31, 2020		259,384	132,347
Additional paid-in capital		459,129,666	29,021,974
Accumulated other comprehensive income (loss)		7,970	(654,880)
Accumulated deficit		(98,863,913)	(37,396,843)
Total stockholders' equity (deficit)	[1]	360,533,107	(8,897,402)
Total liabilities and stockholders' equity (deficit)		$ 454,708,728	$ 10,232,336
[1]	Retroactively restated from the earliest period presented for the Torchlight RTO (“Reverse acquisition”) and CPM RTO (“Reverse Recapitalization”) as described in Note 3

Condensed Consolidated Interi_2

Condensed Consolidated Interim Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Common Stock, Par or Stated Value Per Share	$ 0.001	$ 0
Common Stock, Shares Authorized	1,000,000,000	1,000,000,000
Common Stock, Shares, Issued	281,200,905	154,163,975
Common stock, shares, outstanding	281,200,905	154,163,975

Condensed Consolidated Interi_3

Condensed Consolidated Interim Statements of Operations And Comprehensive Loss - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue:
Total Revenue		$ 572,612	$ 198,175	$ 1,793,235	$ 848,858
Cost of goods sold		145,103	935	146,209	3,095
Gross Profit		427,509	197,240	1,647,026	845,763
Operating Expenses:
Selling & Marketing		427,004	196,276	1,122,469	520,804
General & Administrative		9,776,850	1,463,255	16,217,012	4,620,907
Research & Development		1,816,547	1,043,915	5,229,456	2,936,516
Total operating expenses		12,020,401	2,703,446	22,568,937	8,078,227
Other income (expense):
Interest expense, net		(215,116)	(376,776)	(1,093,833)	(893,001)
(Loss) Gain on foreign exchange, net		(440,157)	(175,514)	(770,542)	81,159
(Loss) Gain on financial instruments, net			(118,455)	(40,540,091)	1,167,310
Other income, net		739,260	562,443	1,673,124	974,112
Total other income (expense)		83,987	(108,302)	(40,731,342)	1,329,580
Loss before income taxes		(11,508,905)	(2,614,508)	(61,653,253)	(5,902,884)
Income tax recovery		83,657	33,304	186,183	87,651
Net loss	[1]	(11,425,248)	(2,581,204)	(61,467,070)	(5,815,233)
Other Comprehensive Income (Loss) net of tax
Foreign currency translation gain (loss)		(125,976)	167,941	(17,328)	8,693
Fair value gain (loss) on changes of own credit risk			(223,221)	680,178	(588,429)
Total Other Comprehensive Income (Loss)	[1]	(125,976)	(55,280)	662,850	(579,736)
Comprehensive loss		$ (11,551,224)	$ (2,636,484)	$ (60,804,220)	$ (6,394,969)
Basic and diluted loss per share	[2]	$ (0.04)	$ (0.02)	$ (0.28)	$ (0.04)
Weighted average number of shares outstanding - basic and diluted	[2]	280,080,786	155,913,202	216,135,190	131,557,607
Product sales [Member]
Revenue:
Total Revenue		$ 297,431	$ 982	$ 321,431	$ 2,904
Development revenue [Member]
Revenue:
Total Revenue		$ 275,181	$ 197,193	$ 1,471,804	$ 845,954
[1]	Retroactively restated from the earliest period presented for the Torchlight RTO (“Reverse acquisition”) and CPM RTO (“Reverse Recapitalization”) as described in Note 3
[2]	Retroactively restated for the three and nine months ended September 30, 2021 and 2020 for the Torchlight RTO (“Reverse Acquisition”) and CPM RTO (“Reverse Recapitalization”) as described in Note 3

Condensed Consolidated Interi_4

Condensed Consolidated Interim Statements of Changes in Stockholders' Equity - USD ($)		Total	Preferred Stock [Member]	Common Stock [Member]		Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (loss) [Member]	Accumulated Deficit [Member]
Beginning balance at Dec. 31, 2019	[1]	$ (5,863,219)	$ 58,153	$ 31,480		$ 19,896,611	$ (63,879)	$ (25,785,584)
Beginning balance, shares at Dec. 31, 2019	[1]		58,153,368	53,297,568
Net loss	[1]	(5,815,233)						(5,815,233)
Other comprehensive income (loss)	[1]	(579,736)					(579,736)
Issuance of common shares, net	[1]	432,408		$ 2,613		429,795
Issuance of common shares, net, Shares	[1]			2,613,321
Issuance of warrants	[1]	149,994				149,994
Issuance of broker warrants	[1]	16,144				16,144
Conversion of deferred share units	[1]			$ 523		(523)
Conversion of deferred share units, Shares	[1]			522,596
Conversion of promissory notes	[1]	3,939,447		$ 17,752		3,921,695
Conversion of promissory notes, Shares	[1]			17,752,163
Conversion of preferred shares	[1]		$ (58,153)	$ 58,153
Conversion of preferred shares, Shares	[1]		(58,153,368)	58,153,368
Effect of reverse acquisition	[1]	3,110,834		$ 21,599		3,089,235
Effect of reverse acquisition, Shares	[1]			21,599,223
Stock-based compensation	[1]	1,165,745		$ 300		1,165,445
Stock-based compensation, Shares	[1]			298,453
Ending balance at Sep. 30, 2020	[1]	(3,443,616)		$ 132,420		28,668,396	(643,615)	(31,600,817)
Ending balance, shares at Sep. 30, 2020	[1]			154,236,692
Beginning balance at Jun. 30, 2020	[1]	(1,213,477)		$ 132,420		28,262,051	(588,335)	(29,019,613)
Beginning balance, shares at Jun. 30, 2020	[1]			154,236,692
Net loss	[1]	(2,581,204)						(2,581,204)
Other comprehensive income (loss)	[1]	(55,280)					(55,280)
Stock-based compensation	[1]	406,345				406,345
Ending balance at Sep. 30, 2020	[1]	(3,443,616)		$ 132,420		28,668,396	(643,615)	(31,600,817)
Ending balance, shares at Sep. 30, 2020	[1]			154,236,692
Beginning balance at Dec. 31, 2020	[1]	(8,897,402)		$ 132,347		29,021,974	(654,880)	(37,396,843)
Beginning balance, shares at Dec. 31, 2020	[1]			154,163,975
Net loss		(50,041,822)
Issuance of warrants		701,910
Ending balance at Jun. 30, 2021	[1]	367,914,349		$ 257,966		454,961,102	133,946	(87,438,665)
Ending balance, shares at Jun. 30, 2021	[1]			279,782,854
Beginning balance at Dec. 31, 2020	[1]	(8,897,402)		$ 132,347		29,021,974	(654,880)	(37,396,843)
Beginning balance, shares at Dec. 31, 2020	[1]			154,163,975
Net loss	[1]	(61,467,070)						(61,467,070)
Other comprehensive income (loss)	[1]	662,850					662,850
Conversion of promissory notes	[1]	23,656,365		$ 20,391		23,635,974
Conversion of promissory notes, Shares	[1]			20,391,239
Conversion of secured debentures	[1]	22,118,782		$ 14,156		22,104,626
Conversion of secured debentures, Shares	[1]			14,155,831
Conversion of unsecured debentures	[1]	5,769,475		$ 5,105		5,764,370
Conversion of unsecured debentures, Shares	[1]			5,105,338
Conversion of long-term debt	[1]	221,843		$ 125		221,718
Conversion of long-term debt, Shares	[1]			124,716
Conversion of payable to related party	[1]	225,986		$ 151		225,835
Conversion of payable to related party, Shares	[1]			150,522
Exercise of stock options	[1]	$ 449,652		$ 1,640		448,012
Exercise of stock options, Shares		1,340,292		1,640,294	[1]
Exercise of warrants	[1]	$ 93,994		$ 282		93,712
Exercise of warrants, Shares	[1]			282,114
Exercise of broker warrants	[1]	16,255		$ 61		16,194
Exercise of broker warrants, Shares	[1]			61,331
Effect of reverse acquisition	[1]	369,631,002		$ 82,814		369,548,188
Effect of reverse acquisition, Shares	[1]			82,813,994
Shares issued in lieu of operating lease liability	[1]	2,781,968		$ 1,833		2,780,135
Shares issued in lieu of operating lease liability, Shares	[1]			1,832,989
Stock-based compensation	[1]	5,269,407		$ 479		5,268,928
Stock-based compensation, Shares	[1]			478,562
Ending balance at Sep. 30, 2021	[1]	360,533,107		$ 259,384		459,129,666	7,970	(98,863,913)
Ending balance, shares at Sep. 30, 2021	[1]			281,200,905
Beginning balance at Jun. 30, 2021	[1]	367,914,349		$ 257,966		454,961,102	133,946	(87,438,665)
Beginning balance, shares at Jun. 30, 2021	[1]			279,782,854
Net loss	[1]	(11,425,248)						(11,425,248)
Other comprehensive income (loss)	[1]	(125,976)					(125,976)
Exercise of stock options	[1]	336,497		$ 1,226		335,271
Exercise of stock options, Shares	[1]			1,226,375
Exercise of warrants	[1]			$ 43		(43)
Exercise of warrants, Shares	[1]			43,308
Stock-based compensation	[1]	3,833,485		$ 149		3,833,336
Stock-based compensation, Shares	[1]			148,368
Ending balance at Sep. 30, 2021	[1]	$ 360,533,107		$ 259,384		$ 459,129,666	$ 7,970	$ (98,863,913)
Ending balance, shares at Sep. 30, 2021	[1]			281,200,905
[1]	Retroactively restated from the earliest period presented for the Torchlight RTO (“Reverse acquisition”) and CPM RTO (“Reverse Recapitalization”) as described in Note 3

Condensed Consolidated Interi_5

Condensed Consolidated Interim Statements of Cash Flows - USD ($)	3 Months Ended				6 Months Ended	9 Months Ended				12 Months Ended
	Sep. 30, 2021		Sep. 30, 2020		Jun. 30, 2021	Sep. 30, 2021		Sep. 30, 2020		Dec. 31, 2020
Cash flows from operating activities:
Net loss	$ (11,425,248)	[1]	$ (2,581,204)	[1]	$ (50,041,822)	$ (61,467,070)	[1]	$ (5,815,233)	[1]
Adjustments to reconcile net loss to net cash used in operating activities:
Non-cash finance income								(14,002)
Non-cash interest expense						904,749		611,808
Non- cash lease expense						256,785
Deferred income tax						(186,183)		(87,651)
Depreciation and amortization						1,798,607		1,768,261
Unrealized foreign currency exchange loss (gain)						279,805		(146,433)
Loss (gain) on financial instruments, net			118,455			40,540,091		(1,167,310)
Change in deferred revenue						(239,057)		(380,494)
Non-cash government assistance						(508,730)		(274,632)
Loss on debt settlement						19,253
Stock-based compensation						855,989		1,114,814
Non-cash consulting expense						3,926,628		43,673
Changes in operating assets and liabilities						(1,764,867)		(1,556,324)
Net cash used in operating activities						(15,584,000)		(5,903,523)
Cash flows from investing activities:
Purchases of intangible assets						(838,664)		(60,716)
Purchases of property, plant and equipment						(5,552,268)		(651,651)
Proceeds from reverse takeover						146,954,733		3,072,136
Net cash provided by investing activities						140,563,801		2,359,769
Cash flows from financing activities
Proceeds from long-term debt						1,127,151		25,783
Repayments of long-term debt						(938,496)		(190,633)
Proceeds from government grants						223,384		198,286
Proceeds from unsecured promissory notes						13,963,386		502,987
Proceeds from secured convertible debentures								3,630,019
Proceeds from unsecured convertible debentures								693,784
Proceeds from issuance of common stock and warrants, net								598,546
Proceeds from stock option exercises						374,652
Proceeds from warrant exercises						93,993
Proceeds from broker warrant exercises						16,255
Net cash provided by financing activities						14,860,325		5,458,772
Net increase in cash, cash equivalents and restricted cash						139,840,126		1,915,018
Cash, cash equivalents and restricted cash at beginning of the period					$ 1,395,683	1,395,683		407,061		$ 407,061
Effects of exchange rate changes on cash, cash equivalents and restricted cash						(17,940)		83,582
Cash, cash equivalents and restricted cash at end of the period	$ 141,217,869		$ 2,405,661			141,217,869		2,405,661		$ 1,395,683
Supplemental cash flow information
Accrued purchases of property, equipment, and patents						799,305		225,357
Right-of-use assets obtained in exchange for lease liabilities						892,003
Right-of-use assets and prepaid expenses recognized in exchange for common stock						2,149,381
Settlement of liabilities in common stock						52,063,432
Interest paid on debt						$ 64,528		$ 114,040
[1]	Retroactively restated from the earliest period presented for the Torchlight RTO (“Reverse acquisition”) and CPM RTO (“Reverse Recapitalization”) as described in Note 3

Corporate Information

Corporate Information	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Corporate Information	1. Corporate information Meta Materials Inc. (the “Company” or “META” or “Resulting Issuer”) is a smart materials and photonics company specializing in metamaterial research and products, nanofabrication, and computational electromagnetics. The Company’s registered office is located at 85 Swanson Road, Boxborough, Massachusetts 01719 and its principal executive office is located at 1 Research Drive, Halifax, Nova Scotia, Canada. On March 5, 2020, MMI and Metamaterial Technologies Inc. (“MTI”) completed a business combination by way of a three-cornered amalgamation pursuant to which MTI amalgamated with a subsidiary of Continental Precious Minerals Inc. (“CPM”), known as Continental Precious Minerals Subco Inc. (“CPM Subco”), to become “Metacontinental Inc.” (the “CPM RTO”). The CPM RTO was completed pursuant to the terms and conditions of an amalgamation agreement dated August 16, 2019 between CPM, MTI and CPM Subco, as amended March 4, 2020. Following the completion of the RTO, Metacontinental Inc. is carrying on the business of the former MTI, as a wholly-owned subsidiary of CPM. In connection with the RTO, CPM changed its name effective March 2, 2020 from Continental Precious Minerals Inc. to Metamaterial Inc. (“MMI” or “Resulting Issuer”). The common stock of CPM was delisted from the TSX Venture Exchange on March 4, 2020 and was posted for trading on the Canadian Securities Exchange (“CSE”) on March 9, 2020 under the symbol “MMAT”. For accounting purposes, the legal subsidiary, MTI, has been treated as the accounting acquirer and CPM, the legal parent, has been treated as the accounting acquiree. The transaction has been accounted for as a reverse recapitalization. Accordingly, these condensed consolidated interim financial statements are a continuation of MTI consolidated financial statements prior to March 5, 2020 and exclude the balance sheets, statements of operations and comprehensive loss, statement of changes in stockholder’s equity and statements of cash flows of CPM prior to March 5, 2020. See note 3 for additional information. On December 14, 2020 , the Company (formerly known as “Torchlight Energy Resources, Inc.” or “Torchlight”) and its subsidiaries, Metamaterial Exchangeco Inc. (formerly named 2798832 Ontario Inc., “Canco”) and 2798831 Ontario Inc. (“Callco”), entered into an Arrangement Agreement (the “Arrangement Agreement”) with Metamaterial Inc., an Ontario corporation headquartered in Nova Scotia, Canada (“MMI”), to acquire all of the outstanding common stock of MMI by way of a statutory plan of arrangement (the “Arrangement”) under the Business Corporations Act (Ontario), on and subject to the terms and conditions of the Arrangement Agreement (the “Torchlight RTO”). On June 25, 2021, the Company implemented a reverse stock split, changed its name from “Torchlight Energy Resources, Inc.” to “Meta Materials Inc.” and changed its trading symbol from “TRCH” to “MMAT”. On June 28, 2021, following the satisfaction of the closing conditions set forth in the Arrangement Agreement, the Arrangement was completed. On June 28, 2021, and pursuant to the completion of the Arrangement Agreement, the Company began trading on the NASDAQ under the symbol “MMAT” while MMI common stock was delisted from the Canadian Securities Exchange (“CSE”) and at the same time, Metamaterial Exchangeco Inc., a wholly-owned subsidiary of META, started trading under the symbol “MMAX” on the CSE. Certain previous shareholders of MMI elected to convert their common stock of MMI into exchangeable shares in Metamaterial Exchangeco Inc. These exchangeable shares, which can be converted into common stock of META at the option of the holder, are similar in substance to common shares of META and have been included in the determination of outstanding common shares of META. For accounting purposes, the legal subsidiary, MMI, has been treated as the accounting acquirer and the Company, the legal parent, has been treated as the accounting acquiree. The transaction has been accounted for as a reverse acquisition in accordance with ASC 805 Business Combinations . Accordingly, these condensed consolidated interim financial statements are a continuation of MMI consolidated financial statements prior to June 28, 2021 and exclude the balance sheets, statements of operations and comprehensive loss, stockholders’ equity and statements of cash flows of Torchlight prior to June 28, 2021. See note 3 for additional information. Impact of COVID-19 on the Company’s Business During March 2020, the COVID-19 outbreak was declared a pandemic by the World Health Organization. This has resulted in governments worldwide enacting emergency measures to combat the spread of the virus. In response, the Company’s management implemented a Work-From-Home policy for management and non-engineering employees in all of the Company’s locations for the remaining period of the year. Engineering staff continued to work on given tasks and follow strict safety guidelines. As of August 2021, the majority of the Company’s employees have returned to the workplace. Although the Company’s supply chain has slowed down, the Company is currently able to maintain inventory of long lead items and is working with its suppliers to optimize future supply orders. COVID-19 has impacted the Company’s 2020 and 2021 sales of its metaAIR ® laser glare protection eyewear product. Worldwide restrictions on travel are significantly impacting the airline industry and purchasing of metaAIR eyewear has not been the primary spending focus of airline companies emerging from the financial impacts of COVID-19, however, the Company is pursuing sales in adjacent markets such as consumer, military and law enforcement. The situation is dynamic and the ultimate duration and magnitude of the impact of COVID-19 on the economy and financial effect specific to the Company cannot be quantified or known at this time.

Significant Accounting Policies

Significant Accounting Policies	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Significant Accounting Policies	2. Significant accounting policies Basis of presentation —These unaudited condensed consolidated interim financial statements and related notes are presented in accordance with accounting principles generally accepted in the United States of America (“US GAAP”). The Company’s fiscal year-end is December 31. These unaudited condensed consolidated interim financial statements do not include all of the information and notes required by US GAAP for annual financial statements. Accordingly, these unaudited condensed consolidated interim financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes for the year ended December 31, 2020 and 2019, filed with the Securities and Exchange Commission (“SEC”) on Form 8-K/A on August 17, 2021. Functional and reporting currency —Items included in the condensed consolidated interim financial statements of each of the Company and its subsidiaries are measured using the currency of the primary economic environment in which the entity operates (the ‘functional currency’). The condensed consolidated interim financial statements are presented in US Dollars, which is the Company’s reporting currency.  transactions and balances - Foreign currency transactions are measured into the functional currency using the exchange rates prevailing at the dates of the associated transactions. Foreign exchange gains and losses resulting from the settlement of such transactions and from the measurement at quarter end exchange rates of monetary assets and liabilities denominated in foreign currencies are recognized in the statement of operations.  translation - The results and financial position of all subsidiaries that have a functional currency different from the presentation currency are translated into the presentation currency as follows:  Company’s assets and liabilities are translated at the closing rate at the date of the balance sheet;  Company’s income and expenses are translated at average exchange rates;  Company’s all resulting exchange differences are recognized in other comprehensive income, a separate component of equity. Principles of consolidation - These condensed consolidated interim financial statements include all of the accounts of Torchlight Energy Resources, Inc. and its wholly owned subsidiaries: Torchlight Energy, Inc., Torchlight Energy Operating, LLC, Hudspeth Oil Corporation, and Torchlight Hazel LLC. as well as Metamaterial Exchangeco Inc., 2798831 Ontario Inc. (“Callco”), Metamaterial Inc., Metamaterial Technologies Canada Inc., Metamaterial Technologies USA Inc., Medical Wireless Sensing Limited, Lamda Guard Inc., Lamda Lux Inc., and Lamda Solar Inc. (the “Subsidiaries”). All intercompany balances and transactions have been eliminated upon consolidation. Use of estimates - The preparation of the condensed consolidated interim financial statements in conformity with US GAAP requires management to make estimates and certain assumptions that affect the amounts reported in these condensed consolidated interim financial statements and accompanying notes. Actual results could differ from these estimates. Significant items subject to such estimates and assumptions include the valuation of financial instruments measured at fair value, goodwill impairment, lease liabilities and right-of-use assets, and stock-based compensation. Assets Held for Sale - Assets held for sale are measured at the lower of their carrying amount or fair value less cost to sell. See Note 3 for further discussion of assets held for sale. Goodwill - Goodwill represents the excess of the purchase price of all acquisitions over the estimated fair value of the net assets acquired. The Company evaluates goodwill for impairment at least annually or more frequently whenever events or changes in circumstances indicate that the asset may be impaired, or in the case of goodwill, the fair value of the reporting unit is below its carrying amount. When impairment indicators are identified, the Company compares the reporting unit’s fair value to its carrying amount, including goodwill. An impairment loss is recognized as the difference, if any, between the reporting unit’s carrying amount and its fair value, to the extent the difference does not exceed the total amount of goodwill allocated to the reporting unit. Other significant accounting policies - Other than Assets held for sale and goodwill, the Company’s accounting policies have not materially changed during the nine months ended September 30, 2021 from those disclosed in the consolidated financial statements for the year ended December 31, 2020 filed in Form 8-K/A. Recently adopted accounting pronouncements ASU 2019-12 – Income Taxes (ACS 740) Effective January 1, 2021 , the Company adopted ASU 2019-12 on a prospective basis. The new standard was issued in December 2019 with the intent of simplifying the accounting for income taxes. The accounting update removes certain exceptions to the general principles in ASC 740 Income Taxes and provides simplification by clarifying and amending existing guidance. The adoption of this ASU did not have a material impact on the Company's condensed consolidated interim financial statements. ASU 2020-09 – Debt (ACS 470) In October 2020, the FASB issued ASU 2020-09, Debt- Debt (Topic 470): Amendments to SEC Paragraphs Pursuant to SEC Release No. 33-10762 (“ASU 2020-09”). The amendments in ASU 2020-09 amend rules focused on the provision of material, relevant, and decision-useful information regarding guarantees and other credit enhancements and eliminate prescriptive requirements that have imposed unnecessary burdens and incentivized issuers of securities with guarantees and other credit enhancements to offer and sell those securities on an unregistered basis. The adopted amendments relate to the financial disclosure requirements for guarantors and issuers of guaranteed securities registered or being registered in Rule 3-10 of Regulation S-X, and affiliates whose securities collateralize securities registered or being registered in Rule 3-16 of Regulation S-X. The amendments in ASU 2020-09 are effective for public business entities for annual periods beginning after December 15, 2020. The Company has evaluated the provisions of ASU 2020-09 and noted no material impact on the Company's condensed consolidated interim financial statements or disclosures from the adoption of this ASU. ASU 2020-10 – Codification improvements In October 2020, the FASB issued ASU 2020-10, Codification Improvements, which updated various codification topics by clarifying or improving disclosure requirements to align with the SEC’s regulations. The amendments in ASU 2020-10 are effective for annual periods beginning after December 15, 2020, for public business entities. The Company adopted ASU 2020-10 on January 1, 2021 and its adoption did not have a material effect on the Company's condensed consolidated interim financial statements and related disclosures.

Reverse Take-Over Transaction (

Reverse Take-Over Transaction (Torchlight RTO)	9 Months Ended
	Sep. 30, 2021
Reverse Take Over Transaction [Abstract]
Reverse take-over transaction (Torchlight RTO)	3. Reverse take-over transaction (Torchlight RTO) Arrangement As discussed in note 1, on December 14, 2020 , Meta Materials Inc. and its subsidiaries, Metamaterial Exchangeco Inc. and 2798831 Ontario Inc. (“Callco”) entered into an Arrangement Agreement with Torchlight Energy Resources, Inc. to acquire all the outstanding common stock of MMI. On March 12, 2021, MMI’s annual general and special meeting was held and MMI’s securityholders approved the Arrangement and on June 11, 2021, approval was obtained from Torchlight shareholders through a special meeting. On June 25, 2021 , Torchlight effected a reverse stock split of its Common Stock, at a ratio of two -to-one, changed its name from “Torchlight Energy Resources, Inc.” to “Meta Materials Inc.” and declared a dividend, on a one-for-one basis, of stock of Series A Non-Voting Preferred Stock to holders of record of Company Common Stock as of June 24, 2021. On June 28, 2021, following the satisfaction of the closing conditions set forth in the Arrangement Agreement, the Arrangement was completed. The stock of Company Common Stock, previously traded on the NASDAQ under the ticker symbol “TRCH,” commenced trading on the NASDAQ under the ticker symbol “MMAT”. Securities conversion Pursuant to the completion of the Arrangement, each common share of MMI that was issued and outstanding immediately prior to June 28, 2021 was converted into the right to receive 1.845 newly issued shares of common stock, par value $ 0.001 per share of the Resulting Issuer or stock of Canco, which are exchangeable for shares of the Resulting Issuer at the election of each former MMI stockholder. In addition, all of MMI’s outstanding options, deferred share units and other securities exercisable or exchangeable for, or convertible into, and any other rights to acquire MMI Common Stock were exchanged for securities exercisable or exchangeable for, or convertible into, or other rights to acquire Resulting Issuer Common Stock. Immediately following the completion of the RTO, the former security holders of MMI owned approximately 70 % of the Resulting Issuer Common Stock, accordingly, the former shareholders of MMI, as a group, retained control of the Resulting Issuer, and while Torchlight was the legal acquirer of MMI, MMI was deemed to be the acquirer for accounting purposes. Reverse acquisition Pursuant to ASC 805 Business combination , the transaction was accounted for as a reverse acquisition since: (i) the shareholders of MMI owned the majority of the outstanding common stock of the Company after the share exchange; (ii) a majority of the directors of the Company are also directors of MMI; and (iii) the previous officers of the Company were replaced with officers designated by MMI. The Company and MMI remain separate legal entities (with the Company as the parent of MMI). These condensed consolidated interim financial statements are those of MMI prior to June 28, 2021 and exclude the balance sheets, results of operations and comprehensive loss, statements of cash flows and stockholders’ equity of Torchlight prior to June 28, 2021. Had the business combination occurred on January 1, 2020, the impact for the nine months ended September 30, 2021 would have been an increase to revenue by $ 5,977 and an increase in loss by $ 6,768,457 (September 30, 2020 – increase to revenue by $ 191,819 and an increase to loss by $ 7,878,064 ). These pro forma amounts exclude the interest and fair value impacts of the pre-existing debt owing from MMI to Torchlight. The impact of the business combination on the post-acquisition period, through to September 30, 2021, was not significant. Measuring the Consideration Transferred The accounting acquirer issued no consideration for the acquiree. Instead, the accounting acquiree issued its 196,968,803 common shares to the owners of the accounting acquirer. However, the acquisition-date fair value of the consideration transferred by the accounting acquirer for its interest in the accounting acquiree is based on the number of equity interests the legal subsidiary would have had to issue to give the owners of the legal parent the same percentage equity interest in the combined entity that results from the reverse acquisition. Accordingly, the consideration transferred of $ 436,214,719 was based on the following calculation:  The assumption that MMI would have issued 44,885,634 shares to Torchlight in order for MMI shareholders to own approximately 70 % of the outstanding Combined Company Stock at a share price of $ 7.96 , the closing share price of MMI on June 28, 2021 to equal $ 357,289,644 .  Adding the fair value of deemed issuance of Torchlight options and warrants that were outstanding at the time of acquisition.  Adding the estimated fair value of the obligation created through the Series A Non-Voting Preferred Stock to distribute additional consideration to the previous shareholders based on the proceeds of the acquired Oil and Gas (O&G) assets.  Deducting the estimated fair value of the previously existing unsecured promissory notes issued by MMI to Torchlight of $ 11,000,000 plus interest. These notes were effectively settled pursuant to the close of the Arrangement. The fair value of the number of equity interests calculated in that way can be used as the fair value of consideration transferred in exchange for the acquiree. The assets and liabilities of the legal acquiree are measured and recognized in the consolidated financial statements at their pre-combination carrying amounts. Presentation of Condensed Consolidated Financial Statements Post Reverse Acquisition The condensed consolidated interim financial statements reflect all of the following: a) the assets and liabilities of the legal subsidiary (the accounting acquirer) recognized and measured at their pre-combination carrying amounts b) the assets and liabilities of the legal parent (the accounting acquiree) recognized and measured in accordance with ASC 805 Business Combinations. c) the retained earnings and other equity balances of the legal subsidiary (accounting acquirer) before the business combination d) the amount recognized as issued equity interests in the condensed consolidated interim financial statements determined by adding the issued equity interest of the legal subsidiary (the accounting acquirer) outstanding immediately before the business combination to the fair value of the legal parent (accounting acquiree). However, the equity structure (that is, the number and type of equity interests issued) reflects the equity structure of the legal parent (the accounting acquiree). All references to common stock, options, deferred share units, and warrants as well as per share amounts have been retroactively restated to reflect the number of shares of the legal parent (accounting acquiree) issued in the reverse acquisition. The Company believes that information gathered to date provides a reasonable basis for estimating the fair value of assets acquired and liabilities assumed, however the Company is waiting for additional information necessary to finalize these fair values, including updated valuations for Oil and Natural gas properties and the Preferred stock liability included as part of the consideration. Therefore, the provisional measurements of fair value set forth below are subject to change. The Company expects to complete the purchase price allocation as soon as practicable but no later than one year from the acquisition date. During the three months ended September 30, 2021, the Company has reduced other assets by $ 146,761 and increased accounts payable by $ 1,067,791 as a result of information presented post acquisition. The Goodwill balance has increased accordingly by $ 1,214,552 . The following table summarizes the preliminary allocation of the purchase price to the assets acquired on a relative fair value basis: Amount ($) Fair value of deemed issuance of MMI’s stock – Common Stock 82,814 Fair value of deemed issuance of MMI’s stock – Additional paid in capital 357,206,830 Fair value of Torchlight’s outstanding warrants – Additional paid in capital 2,943,370 Fair value of Torchlight’s outstanding options – Additional paid in capital 9,397,988 Total Effect on Equity 369,631,002 Effective settlement of notes payable by MMI to Torchlight 1 ( 11,322,637 ) Preferred stock liability 2 77,906,354 436,214,719 Net assets (liabilities) of Torchlight: Cash and cash equivalents 146,954,733 Other assets 354,662 Oil and natural gas properties 2 72,797,392 Accounts payable ( 2,698,650 ) Other liabilities ( 21,937 ) Goodwill 3 218,828,519 436,214,719 1 Notes receivable/Payable Notes receivable or payable represent unsecured promissory notes previously issued by MMI to Torchlight between September 20, 2020 to February 18, 2021 for proceeds of $ 11,000,000 plus interest. These notes have been eliminated upon acquisition and subsequent consolidation. (note 7) 2 Oil and natural gas properties and preferred stock liability On June 11, 2021, Torchlight’s stockholders approved an amendment to its Articles of Incorporation to increase the authorized number of shares of Torchlight’s preferred stock, par value $ 0.001 per share (“Preferred Stock”), from 10,000,000 shares to 200,000,000 shares. In addition, Torchlight’s Board of Directors formally declared the Preferred Dividend and set June 24, 2021 as the Dividend Record Date. On June 25, 2021, the Company declared a dividend, on a one-for-one basis , of shares of Series A Non-Voting Preferred Stock (the “Series A Preferred Stock”) to holders of record of Torchlight’s common stock as of June 24, 2021. This preferred stock entitles its holders to receive certain dividends based on the net proceeds of the sale of any assets that are used or held for use in the Company’s oil and gas exploration business (the “O&G Assets”), subject to certain holdbacks. Such asset sales must occur prior to the earlier of (i) December 31, 2021 or (ii) the date which is six months from the closing of the Arrangement, or such later date as may be agreed between the Company and the individual appointed to serve as the representative of the holders of Series A Preferred Stock (the “Sale Expiration Date”). The Series A Preferred Stock will automatically be cancelled once the entitled dividends have been paid. Pursuant to the Arrangement, the Company has reclassified the O&G Assets as assets held for sale since: (i) Management has committed to a plan to sell the assets; (ii) The assets are available for sale in their present condition; (iii) The sale is probable and is expected to close within 1 year; and (iv) The selling price is reasonable in relation to the asset’s current fair value. The Preferred stock liability is calculated as the estimated net proceeds from the sale the “O&G Assets” in addition to $ 5 million in expected costs associated with maintaining and selling the assets. 3 Goodwill Goodwill is attributed to the difference between, the total consideration calculated above and deemed to be transferred by the accounting acquirer (MMI) and, the total net assets of the accounting acquiree (Torchlight). Based on the market value of META's Stock on June 28, 2021, this resulted in total “consideration” being transferred to Torchlight of approximately $ 436.2 million. Further, the net assets of Torchlight acquired by MMI has been provisionally estimated to be approximately $ 217.4 million. The difference between the $ 436 million of consideration deemed to have been transferred and the $ 217.4 million of net assets acquired results in goodwill of approximately $ 218.8 million. Torchlight is delivering a NASDAQ listed legal entity in good standing that will provide the Company with ready access to significant capital sources in the future to fund its growth plans. The acquired goodwill will continue to be assessed for impairment in future periods.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2021
Related Party Transactions [Abstract]
Related party transactions	4. Related party transactions As of September 30, 2021 and December 31, 2020, receivables due from a related party (Lamda Guard Technologies Ltd, or “LGTL”) were $ 64,708 and $ nil , respectively. On March 16, 2021, MMI converted an amount of $ 290,230 owing to LGTL into 81,584 MMI common stock for a price per share of CA$ 4.51 . The conversion price of CA$ 4.51 per share represented a 10 % premium to the CA$ 4.10 closing price of MMI stock on the CSE at the close of business on March 12, 2021. MMI has recognized $ 225,986 in common stock in the condensed consolidated interim statements of changes in stockholders’ equity at fair value at the time of conversion and recorded the difference of $ 64,245 between the fair value of the common stock and the carrying value of the extinguished liability as a loss on debt settlement in the condensed consolidated interim statements of operations and comprehensive loss. As of September 30, 2021 and December 31, 2020, related party payables were $ Nil and $ 245,467 due to LGTL, respectively.

Inventory

Inventory	9 Months Ended
	Sep. 30, 2021
Inventory Disclosure [Abstract]
Inventory	5. Inventory Inventory consists of photosensitive materials, lenses, laser protection film and finished eyewear, and is comprised of the following: September 30, 2021 December 31, 2020 $ $ Raw materials 271,364 378,265 Supplies 13,891 14,414 Work in process 64,905 69,381 Finished goods 8,804 1,322 Total inventory 358,964 463,382

Property, plant and equipment,

Property, plant and equipment, net	9 Months Ended
	Sep. 30, 2021
Property, Plant and Equipment [Abstract]
Property, plant and equipment, net	6. Property, plant and equipment, net Property, plant and equipment consist of the following: Useful life September 30, 2021 December 31, 2020 (years) $ $ Computer equipment 3 - 5 246,854 163,856 Computer software 1 258,614 256,554 Manufacturing equipment 2 - 5 8,150,928 6,645,986 Office furniture 5 - 7 129,736 99,234 Enterprise Resource Planning software 5 210,105 210,254 Assets under construction N/A 4,653,338 424,393 13,649,575 7,800,277 Accumulated depreciation and impairment ( 6,123,586 ) ( 5,039,106 ) 7,525,989 2,761,171 Depreciation expense was $ 379,824 and $ 372,726 for the three months ended September 30, 2021 and 2020, respectively, and $ 1,103,651 and $ 1,184,772 for the nine months ended September 30, 2021 and 2020, respectively. Property, plant and equipment is pledged as security under a General Security Agreement (a “GSA”) signed in favor of the Royal Bank of Canada (“RBC”) on July 14, 2014, which is related to the Company’s corporate bank account and credit card and includes all property, plant and equipment and intangible assets.

Unsecured Convertible Promissor

Unsecured Convertible Promissory Notes	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Unsecured convertible promissory notes	7. Unsecured convertible promissory notes Nine months ended Year ended September 30, 2021 December 31, 2020 $ $ Bridge loan Torchlight Total Bridge loan Torchlight Total Beginning balance 538,020 665,215 1,203,235 — — — Issued 3,963,386 10,000,000 13,963,386 378,042 1,000,000 1,378,042 Interest accrued 17,804 329,965 347,769 2,698 12,701 15,399 Fair value loss (gain) 19,163,417 333,947 19,497,364 139,609 ( 354,839 ) ( 215,230 ) Unrealized fair value loss (gain) due to own credit risk — ( 5,554 ) ( 5,554 ) — 14,132 14,132 Unrealized foreign currency exchange gain — ( 258,480 ) ( 258,480 ) — ( 23,849 ) ( 23,849 ) Foreign currency translation adjustment ( 26,262 ) 257,544 231,282 17,671 17,070 34,741 Conversion to common stock ( 23,656,365 ) — ( 23,656,365 ) — — — Elimination pursuant to Torchlight RTO (note 3) — ( 11,322,637 ) ( 11,322,637 ) — — — Ending balance — — — 538,020 665,215 1,203,235 a) In November 2020, MMI entered into a commitment letter (the “Commitment Letter”) with a shareholder, pursuant to which the shareholder will provide up to CA$ 5,500,000 in debt financing (the “Bridge Loan”) to fund MMI’s continued operations while MMI worked toward completion of the Proposed Transaction with Torchlight. Pursuant to the Commitment Letter, MMI was able to draw up to CA$ 500,000 monthly beginning in November 2020. The Bridge Loan bore interest at the rate of 8 % per annum, payable monthly in arrears. The principal amount and any accrued but unpaid interest was due and payable on the 10th business day after the closing of the Proposed Transaction, or on November 29, 2022, if the Transaction did not close before that date. At the option of the holder, the Bridge Loan, or any portion of the Bridge Loan and accrued but unpaid interest was convertible into MMI Common Stock at a conversion price of CA$ 0.50 per share, subject to customary adjustments. MMI had the option to repay the Bridge Loan in whole or in part, without penalty, at any time on or after March 28, 2021 . MMI elected to measure the financial instrument at fair value. MMI subsequently remeasured the instrument on December 31, 2020 and recorded fair value loss of $ 139,609 in the statements of operations. There was no change in instrument specific credit risk. On February 16, 2021, the total Bridge Loan of $ 4,361,930 of principal and accrued interest was converted at CA$ 0.50 per share into 20,391,239 common stock, in accordance with the terms of the bridge financing. MMI has remeasured the instrument as of the conversion date and recognized a non-cash realized fair value loss of $ 19,163,417 and the full amount of $ 23,656,365 was reclassified into the condensed consolidated interim statements of changes in stockholders’ equity. b) On September 15, 2020, MMI entered into a non-binding Letter of Intent (the “LOI”) with Torchlight pursuant to which Torchlight loaned MMI three unsecured convertible promissory notes totaling $ 11,000,000 . These Unsecured Convertible Promissory Note bore interest at 8 % annually, with principal and interest due and payable on the maturity date. If MMI and Torchlight had not entered into a Definitive Agreement, or the Definitive Agreement were terminated, then the Unsecured Convertible Promissory Notes and all accrued and unpaid interest were convertible at the option of the holder into common stock of the Company at the conversion prices set out below. The Company had the option to repay all or part of the Unsecured Convertible Promissory Notes, plus any accrued and unpaid interest, without penalty on or after 120 days from the note issuance date. Tranche 1 Tranche 2 Tranche 3 Face value of notes issued $ 500,000 $ 500,000 $ 10,000,000 Issuance date September 20, 2020 December 16, 2020 February 18, 2021 Maturity date September 20, 2022 December 16, 2022 February 18, 2022 Interest rate 8 % 8 % 8 % Conversion price CA$ 0.35 CA$ 0.62 CA$ 2.80 The conversion option was a foreign currency embedded derivative as the note was denominated in USD and the conversion price was in Canadian dollars. MMI elected to measure the financial instrument at fair value. MMI subsequently remeasured the instrument on March 31, 2021 and recorded fair value gain of $ 197,527 , of which $ 5,554 was a gain recorded in other comprehensive income relating to instrument specific credit risk and $ 191,973 was a gain recorded in the statements of operations. As part of the closing of the Arrangement, the promissory notes were remeasured at fair value and a fair value loss of $ 525,920 was recorded in the statements of operations and comprehensive loss. The notes were considered part of the consideration transferred (see note 3) and were eliminated upon acquisition and subsequent consolidation. In addition, the related accumulated fair value losses in OCI of $ 9,011 were recycled to the statements of operations and comprehensive loss.

Secured Convertible Debentures

Secured Convertible Debentures	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Secured convertible debentures	8. Secured convertible debentures Nine months ended Year ended September 30, 2021 December 31, 2020 $ $ Beginning balance 5,545,470 — Issued — 3,630,019 Interest accrued 121,860 508,757 Interest paid ( 64,528 ) ( 285,154 ) Fair value loss 16,408,482 511,699 Fair value loss—own credit — 865,280 Foreign currency translation adjustment 107,498 314,869 Conversion to common stock ( 22,118,782 ) — Ending balance — 5,545,470 On April 3, 2020, MMI issued CA$ 5,000,000 in Secured Debentures to BDC Capital Inc.(“BDC”), a wholly owned subsidiary of the Business Development Bank of Canada. The Secured Debentures mature on October 31, 2024 , and bear interest at a rate of 10.0 % per annum, payable monthly in cash. In addition to the cash interest, the Secured Debentures accrued a non-compounding payment in kind (“PIK”) of 8 % per annum. The PIK may be reduced by up to 3 % (reduced to as low as 5 % per annum) upon meeting certain conditions. BDC may elect to have the PIK paid in cash. The Secured Debentures and the PIK are convertible in full or in part, at BDC’s option, into MMI common stock at any time prior to their maturity at a conversion price of CA$ 0.70 (the “Conversion Price”) or MMI may force the conversion of Secured Debentures if MMI’s common stock are trading on the CSE on a volume-weighted average price greater than 100 % of the Conversion Price (i.e. greater than CA$ 1.40 ) for any 20 consecutive trading days with a minimum daily volume of at least 100,000 Common Stock. MMI elected to measure the financial instrument at fair value. MMI subsequently remeasured the instrument on December 31, 2020 and recorded a fair value loss of $ 1,376,979 , of which $ 511,699 was recorded in other comprehensive income relating to instrument specific credit risk and $ 865,280 was recorded in the statements of operations. The secured debentures were subject to a covenant clause, whereby MMI is required to maintain a working capital ratio of no less than 3:1 . Working capital ratio excluded deferred revenue and deferred government assistance from current liabilities. MMI did not fulfil the ratio as required in the contract and consequently, the secured debentures were reclassified as a current liability as at December 31, 2020. On March 3, 2021, MMI forced the conversion of the Secured Debentures pursuant to the terms of the agreement with BDC. The total debentures balance of $ 3,910,954 was converted at CA$ 0.70 per share into 14,155,831 common shares. MMI remeasured the liability as of the conversion date and recognized a non-cash realized fair value loss of $ 16,408,482 and the full amount of $ 22,118,782 was reclassified into the condensed consolidated interim statements of changes in stockholders’ equity. All security interests held by BDC on assets of MMI were immediately discharged. In addition, the accumulated losses in OCI of $ 511,699 were recycled to the statements of operations and comprehensive loss.

Unsecured Convertible Debenture

Unsecured Convertible Debentures	9 Months Ended
	Sep. 30, 2021
Debt Instruments [Abstract]
Unsecured convertible debentures	9. Unsecured convertible debentures Unsecured convertible debentures (the “Unsecured Debentures”) consist of the following: Nine months ended Year ended September 30, 2021 December 31, 2020 $ $ Beginning balance 1,825,389 585,267 Issued — 693,784 Interest accrued 23,660 147,304 Fair value loss 3,914,931 189,708 Fair value loss due to own credit risk — 154,347 Foreign currency translation adjustment 5,495 54,979 Conversion to common stock ( 5,769,475 ) — Ending balance — 1,825,389 On December 10, 2019, an agreement was signed to convert an existing CA$ 250,000 short-term loan into an Unsecured Debenture, and also during December 2019, MMI issued an additional CA$ 500,000 in Unsecured Debentures to the same investor, under the same terms. During the year ended December 31, 2020, MMI issued an additional CA$ 950,000 in Unsecured Debentures to individuals and companies under the same terms as previous issues. The Unsecured Debentures bear interest at a fixed rate of 1 % per month, compounding monthly and have a maturity date of April 30, 2025 . Each Unsecured Debenture is convertible at the option of the holder into MMI common stock at a price of CA$ 0.70 per share. Following completion of the RTO, MMI may elect to repay the outstanding amounts owing under the Unsecured Debentures in cash or in stock at a conversion price of CA$ 0.70 upon meeting certain conditions or the holder can convert the Unsecured Debentures at CA$ 0.70 or the Unsecured Debentures can be converted at maturity at the greater of 80 % of the 10 day volume-weighted average price of the Resulting Issuer’s common stock or the closing price on the preceding trading day less the maximum permitted discount by the exchange. MMI elected to measure the financial instrument at fair value. MMI subsequently remeasured the instrument on December 31, 2020 and recorded a fair value loss of $ 344,055 , of which $ 154,347 was recorded in other comprehensive income relating to instrument specific credit risk and $ 189,708 was recorded in the statements of operations. On February 16, 2021, MMI converted $ 1,439,103 of principal and accrued interest of Unsecured Debentures at CA$ 0.70 per share into 5,105,338 common shares in accordance with the terms of their debt instruments. MMI has remeasured the liability as of the conversion date and recognized a non-cash realized fair value loss of $ 3,914,931 and the full amount of $ 5,769,475 was reclassified into the condensed consolidated interim statements of changes in stockholders’ equity. In addition, the accumulated losses in OCI of $ 154,347 were recycled to the statements of operations.

Long-Term Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Long-term debt	10. Long-term debt September 30, December 31, $ $ ACOA Business Development Program (“BDP”) 2012 interest-free loan 1 with a maximum contribution of CA$ 500,000 , repayable in monthly repayments commencing October 1, 2015 of CA$ 5,952 until June 1, 2023 . Loan repayments were temporarily paused effective April 1, 2020 until January 1, 2021 as a result of the COVID-19 outbreak. As at September 30, 2021, the amount drawn down on the loan, net of repayments, is CA$ 125,000 (2020 - CA$ 178,571 ). 92,606 129,384 ACOA Atlantic Innovation Fund (“AIF”) 2015 interest-free loan 1,2 with a maximum contribution of CA$ 3,000,000 . Annual repayments, commencing June 1, 2021 , are calculated as a percentage of gross revenue for the preceding fiscal year, at Nil when gross revenues are less than CA$ 1,000,000 , 5 % when gross revenues are less than CA$ 10,000,000 and greater than CA$ 1,000,000 , and CA$ 500,000 plus 1 % of gross revenues when gross revenues are greater than CA$ 10,000,000 . As at September 30, 2021, the amount drawn down on the loan is CA$ 3,000,000 (2020 - CA$ 3,000,000 ). 1,649,461 1,458,954 ACOA BDP 2018 interest-free loan 1,3 with a maximum contribution of CA$ 3,000,000 , repayable in monthly repayments commencing June 1, 2021 of CA$ 31,250 until May 1, 2029 . As at September 30, 2021, the amount drawn down on the loan, net of repayments, is CA$ 2,875,000 (2020 - CA$ 3,000,000 ). 1,336,370 1,285,307 ACOA BDP 2019 interest-free loan1 with a maximum contribution of CA$ 100,000 , repayable in monthly repayments commencing June 1, 2021 of CA$ 1,400 until May 1, 2027 . As at September 30, 2021, the amount drawn down on the loan, net of repayments, is CA$ 94,444 (2020 - CA$ 62,165 ). 42,888 30,138 ACOA Regional Relief and Recovery Fund (“RRRF”) 2020 interest-free loan with a maximum contribution of CA$ 390,000 , repayable on monthly repayments commencing April 1, 2023 of CA$ 11,000 until April 1, 2026 . As at September 30, 2021, the amount drawn down on the loan is CA$ 390,000 (2020 - $ Nil ). 109,536 — CAIXA Capital loan bearing interest at 6-month EURIBOR rate plus 4 % interest spread. The loan principal and interest are fully repayable on January 15, 2025 . On March 12, 2021, the principal loan balance with outstanding interest totaling $ 209,506 (EUR 171,080 ) was converted into MMI common stock at $ 3.87 per share 4 . Pursuant to the conversion, CAIXA Capital was issued 67,597 MMI common shares. — 130,265 3,230,861 3,034,048 Less: current portion 532,346 290,544 2,698,515 2,743,504 1 The Company was required to maintain a minimum balance of positive equity throughout the term of the loan. However, on November 14, 2019, ACOA waived this requirement for the period ending June 30, 2019 and for each period thereafter until the loan is fully repaid. 2 The carrying amount of the ACOA AIF loan is reviewed each reporting period and adjusted as required to reflect management’s best estimate of future cash flows, discounted at the original effective interest rate. 3 A portion of the ACOA BDP 2018 loan was used to finance the acquisition and construction of manufacturing equipment resulting in $ 425,872 was recorded as deferred government assistance, which is being amortized over the useful life of the associated equipment. The Company recorded the amortization expense for the nine months ended September 30, 2021 of $ 107,538 (nine months ended September 30, 2020—$ 100,968 ) as government assistance in the condensed consolidated interim statements of operations and comprehensive loss. 4 MMI has recognized the common stock issued in the consolidated statements of changes in stockholders’ equity at fair value at time of conversion to be $ 221,842 and recorded the difference of $ 88,763 between the fair value of the common stock and the carrying value of the long-term debt as loss on debt settlement in the condensed consolidated interim statements of operations and comprehensive loss.

Capital Stock

Capital Stock	9 Months Ended
	Sep. 30, 2021
Stockholders' Equity Note [Abstract]
Capital Stock	11. Capital stock Common stock Authorized: 1,000,000,000 common shares, $ 0.001 par value. All references to numbers of common shares and amounts in the condensed consolidated interim statements of changes in stockholder’s equity and in the notes to the condensed consolidated interim financial statements have been retroactively restated to reflect as if the Torchlight RTO had taken place as of the beginning of the earliest period presented. The numbers of common shares issued pre-CPM RTO have been multiplied by the 2.75 CPM conversion ratio and the 1.845 Torchlight conversion ratio while the numbers of common shares issued post-CPM RTO have been multiplied by the 1.845 Torchlight conversion ratio. In addition, the amounts of common shares issued pre-CPM RTO were calculated by multiplying the number of shares by 0.001 , the 2.75 CPM conversion ratio and the 1.845 Torchlight conversion ratio and the difference was recognized in additional paid in capital while the amounts of common shares issued post-CPM RTO were calculated by multiplying the number of shares by 0.001 and the 1.845 Torchlight conversion ratio and the difference were recognized in additional paid in capital. During the nine months ended September 30, 2021, the Company converted unsecured convertible promissory notes of $ 23,656,365 , secured convertible debentures of $ 22,118,782 , and unsecured convertible debentures of $ 5,769,475 into common stock. The Company remeasured the financial liabilities at fair value as of respective conversion dates and recognized a non-cash realized loss of $ 39,486,830 . The Company subsequently reclassified the remeasured liabilities into equity and recognized $ 39,652 in common stock and $ 51,504,970 in additional paid in capital. The number of shares issued was calculated as the total outstanding principal and interest of each liability divided by the conversion price stated in each respective instrument’s agreement. During the nine months ended September 30, 2021, the Company converted long-term debt of $ 133,080 and due to related party of $ 295,419 into common stock. The Company recorded the common stock issued at fair value using the Company’s share price at the time of conversion. The Company recognized $ 276 in common stock and $ 447,553 in additional paid in capital. The resulting net loss calculated as the difference between the fair value of common stock and the carrying value of the liabilities of $ 19,330 was recorded in other income in the condensed consolidated interim statements of operations and comprehensive loss. The number of shares issued was calculated as the total outstanding principal and interest of each liability multiplied by the agreed upon conversion price. During the nine months ended September 30, 2021, the Company issued 286,292 common shares at CA$ 0.58 per share as compensation in exchange for a fairness opinion obtained with respect to the Torchlight RTO. The company paid CA $ 90,000 in cash in 2020 and agreed to settle the remaining CA $ 90,000 in common stock. The Company recognized the share-based payment in trade and other payables in 2020 until the shares were issued in 2021. During the nine months ended September 30, 2021, the Company issued 148,368 common shares at $ 3.37 per share to a service provider. The total amount of $ 500,000 was recorded as prepaid expenses and is being amortized over the period of service. During the nine months ended September 30, 2021, and pursuant to the Torchlight acquisition, the Company recognized $ 369,631,002 in equity as the fair value of 82,813,994 common stock that was deemed to have been issued to Torchlight as part of the Torchlight RTO (note 3). Warrants Prior to completion of the CPM RTO on March 5, 2020, every two warrants had the right to purchase one MTI common share for CA$ 2.475 per share. Pursuant to the completion of the RTO on March 5, 2020, MTI warrants were adjusted such that one warrant has the right to purchase one MMI Common Share for CA$ 0.90 per share. On June 28, 2021 and pursuant to the completion of Torchlight RTO, each MMI warrant was converted into 1.845 META warrants and the exercise price was updated to be CA$ 0.49 . Also, as part of the Torchlight RTO, Torchlight outstanding warrants of 853,278 underwent a reverse stock split at a ratio of 2- 1 resulting in warrants of 426,639 and for an amount being recorded at $ 2,943,370 in additional paid in capital as part of the consideration transferred. The following table summarizes the changes in warrants of the Company: Nine months ended Year ended September 30, 2021 December 31, 2020 Number of Number of warrants 1 Amount 1 warrants 1 Amount 1 # $ # $ Balance, beginning of period 3,046,730 402,883 1,590,866 132,299 Issued 2,153,500 3,831,124 1,455,864 166,916 Adjustment to 2019 warrants — — — 103,668 Exercised ( 291,036 ) ( 41,242 ) — — Fair value of deemed issuance to Torchlight 426,639 2,943,370 — — Balance, end of period 5,335,833 7,136,135 3,046,730 402,883 1 All references to numbers of warrants have been retroactively restated to reflect as if Torchlight RTO had taken place as of the beginning of the earliest period presented. The numbers of warrants issued pre-CPM RTO have been divided by 2 , multiplied by the 2.75 CPM conversion ratio and the 1.845 Torchlight conversion ratio. There were no warrants issued post CPM RTO except for Torchlight warrants . During the three and nine months ended September 30, 2021, the Company granted 1,153,500 and 2,153,500 five-year warrants (three and nine months ended September 30, 2020 - Nil and 1,455,864 ) respectively, to purchase common stock to external consultants. The fair value of the 1,153,500 warrants issued during the three months ended September 30, 2021 was estimated to be $ 3,129,208 using the Black-Scholes option pricing model. The total amount has been recorded in General & Administrative expense in the condensed consolidated interim statements of operations and comprehensive loss. The fair value of the 1,000,000 warrants issued during the nine months ended September 30, 2021 (see section below titled ‘ correction of prior period immaterial errors’) was estimated to be $ 701,910 using the Monte Carlo Simulation model. The total amount has been recorded in General & Administrative expense in the condensed consolidated interim statements of operations and comprehensive loss. Correction of prior period immaterial error During Q3 2021, the Company determined that an error had been made in the prior period condensed consolidated interim financial statements for the period ended June 30, 2021. Previously granted warrants issued by the Company to an external consultant should have resulted in an expense being recorded by the Company (with the corresponding offset being recorded to Additional Paid-in Capital) in the amount of $ 701,910 in the condensed consolidated interim financial statements for the three and six months ended June 30, 2021. The Company has concluded that the error is immaterial to the previously issued condensed consolidated interim financial statements for the three and six months ended June 30, 2021, and has disclosed below the impact of the error to associated financial statement captions:  General & Administrative expense should have been $ 3,847,278 and $ 6,440,162 for the three and six months ended June 30, 2021 (previously reported as $ 3,145,368 and $ 5,738,252 respectively);  Net loss should have been $ 5,883,303 and $ 50,041,822 for the three and six months ended June 30, 2021 (previously reported as $ 5,181,393 and $ 49,339,912 respectively); and  Additional Paid-in Capital should have been $ 454,961,102 (previously reported as $ 454,259,192 ). The error will also be retrospectively revised in the comparative amount for the condensed consolidated interim financial statements for the three and six month period ending June 30, 2022, when filed. Broker warrants Prior to completion of the CPM RTO on March 5, 2020, every MTI broker warrant had the right to purchase one MTI common share for CA$ 1.70 per share. Pursuant to the completion of the RTO on March 5, 2020, each MTI broker warrant was converted into 1.845 MMI warrants, and the exercise price was updated to be CA$ 0.62 . On June 28, 2021, and pursuant to the completion of the Torchlight RTO, each MMI warrant was converted into 1.845 META warrants and the exercise price was updated to be CA$ 0.34 . The following table summarizes the changes in broker warrants of the Company: Nine months ended Year ended September 30, 2021 December 31, 2020 Number of Number of warrants 1 Amount 1 warrants 1 Amount 1 # $ # $ Balance, beginning of period 97,542 16,144 — — Issued — — 97,542 16,144 Exercised ( 61,331 ) ( 10,892 ) — — Balance, end of period 36,211 5,252 97,542 16,144 1 All references to numbers of broker warrants have been retroactively restated to reflect the number of stock of the legal parent (accounting acquiree) issuable following the reverse acquisition. The numbers of broker warrants issued pre-CPM RTO have been multiplied by the 2.75 CPM conversion ratio and the 1.845 Torchlight conversion ratio. There were no broker warrants issued post CPM RTO. The fair value of warrants and broker warrants that were issued and estimated using the Black-Scholes option pricing model have the following inputs and assumptions: Nine months ended Year ended September 30, 2021 December 31, 2020 Risk free interest rate 0.45 % - 0.98 % 0.80 % - 1.43 % Expected volatility 92 % 134 % Expected dividend yield 0 % 0 % Expected forfeiture rate 0 % 0 % Common stock price 5.31 1.70 Exercise price per common stock $ 0.85 - $ 4.50 $ 1.70 - $ 2.475 Expected term of warrants 2.20 - 5 years 2 years The fair value of warrants that were issued and estimated using the Monte Carlo Simulation have the following inputs and assumptions: Nine months ended September 30, 2021 Risk free interest rate 0.42 % Weighted average expected volatility 80 % Expected term of warrants 5 years

Share-Based Payments

Share-Based Payments	9 Months Ended
	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Share-based payments	12. Stock-based payments DSU Plan Each share option is convertible at the option of the holder into one common share of the Company. On March 28, 2013, the Company implemented a Deferred Stock Unit (DSU) Plan for its directors, employees and officers. Directors, employees and officers are granted DSUs of the Company with immediate vesting as a form of compensation. Each unit is convertible at the option of the holder into one common share of the Company. Eligible individuals are entitled to receive all DSUs (including dividends and other adjustments) no later than December 1st of the first calendar year commencing after the time of termination of their services. On March 5, 2020 and pursuant to the CPM RTO, each MTI DSU was converted into 2.75 MMI DSUs. On June 28, 2021 and pursuant to the Torchlight RTO, each MMI DSU was converted into 1.845 META DSUs. The following table summarizes the change in outstanding DSUs of the Company: Nine months ended Year ended September 30, 2021 December 31, 2020 # 1 # 1 Outstanding, beginning of period 3,455,224 3,977,820 Converted into common stock — ( 522,596 ) Outstanding, end of period 3,455,224 3,455,224 Information concerning units outstanding is as follows: September 30, 2021 December 31, 2020 Issue price Number of units 1 Number of units 1 CA$ 0.27 3,348,675 3,348,675 CA$ 0.51 106,549 106,549 3,455,224 3,455,224 1 All references to numbers of DSUs have been retroactively restated to reflect as if the Torchlight RTO had taken place as of the beginning of the earliest period presented. The numbers of DSUs issued pre-CPM RTO have been multiplied by the 2.75 CPM conversion ratio and the 1.845 Torchlight conversion ratio. There were no DSUs issued post-CPM RTO. Employee Stock Option Plan Each stock option is convertible at the option of the holder into one common share of the Company. The Company has an Employee Stock Option Plan [the “Plan”] for directors, officers, and employees. Unless otherwise determined by the Board of Directors, 25 % of the options shall vest and become exercisable on the first anniversary of the grant date and 75 % of the options issuable under the Plan shall vest and become exercisable in equal monthly installments over the three-year period commencing immediately after the first anniversary of the grant date. The option exercise price will not be less than the fair market value of a share on the grant date, as determined by the Board of Directors, taking into account any considerations which it determines to be appropriate at the relevant time. The exercise price of the stock options is equal to the market price of the underlying stock on the date of the grant. The contractual term of the stock options is 10 years and there are no cash settlement alternatives for the employees. During the year ended December 31, 2020, the Company’s existing MTI options were converted at a ratio of 2.75 MMI options for each MTI option pursuant to the CPM RTO. Also, as part of the CPM RTO, 1,291,500 stock options were issued to executives and directors of CPM. Additionally, and subsequent to the completion of the CPM RTO, the Company granted 13,402,080 options to employees and directors, 898,515 of which vested upon grant date and 12,503,565 of which vest over 1 - 4 years . Subsequent to the completion of the CPM RTO, 2,589,457 stock options were forfeited as a result of employee departures and 2,090,866 options expired unexercised. During the nine months ended September 30, 2021, the Company’s existing MMI options were converted at a ratio of 1.845 META options for each MMI option pursuant to the Torchlight RTO. Also, as part of the Torchlight RTO, Torchlight outstanding options of 3,000,000 underwent a reverse stock split at a ratio of 2-1 resulting in outstanding options of 1,500,000 and an amount of $ 9,397,988 was recorded in additional paid in capital as part of the consideration transferred. Total stock-based compensation expense included in the condensed consolidated interim statements of operations was as follows: Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Selling & Marketing 5,976 15,616 26,935 53,267 General & Administrative 93,453 266,338 434,135 729,688 Research & Development 101,347 112,913 383,489 261,508 200,776 394,867 844,559 1,044,463 The following table summarizes the change in outstanding stock options of the Company: Weighted Nine months Weighted Year average ended average ended exercise September 30, exercise December 31, stock Number of stock Number of Outstanding, beginning of period CA$ 0.33 24,477,507 CA$ 0.33 14,502,303 Issued to CPM executives and directors pursuant to CPM RTO — CA$ 0.19 1,291,500 Granted — CA$ 0.34 13,402,080 Exercised CA$ 0.34 ( 1,340,292 ) — Forfeited CA$ 0.34 ( 65,201 ) CA$ 0.34 ( 2,627,510 ) Expired — CA$ 0.27 ( 2,090,866 ) Fair value of deemed issuance to Torchlight US$ 1.75 1,500,000 — Outstanding, end of period CA$ 0.44 24,572,014 CA$ 0.33 24,477,507 Below is a summary of the outstanding options as at September 30, 2021: Exercise price Number outstanding 1 Number exercisable 1 CA$ 0.34 22,194,902 12,951,468 CA$ 0.15 558,112 558,113 CA$ 0.19 369,000 369,000 US$ 2.00 1,125,000 1,125,000 US$ 1.00 325,000 325,000 24,572,014 15,328,581 Below is a summary of the outstanding options as at December 31, 2020: Exercise price Number outstanding 1 Number exercisable 1 CA$ 0.34 23,550,394 9,636,758 CA$ 0.15 558,113 558,113 CA$ 0.19 369,000 369,000 24,477,507 10,563,871 1 All references to numbers of stock options have been retroactively restated to reflect as if the Torchlight RTO had taken place as of the beginning of the earliest period presented. The numbers of stock options issued pre-CPM RTO have been multiplied by the 2.75 CPM conversion ratio and the 1.845 Torchlight conversion ratio. The numbers of stock options issued post CPM RTO have been multiplied by the 1.845 Torchlight conversion ratio. The weighted average remaining contractual life for the stock options outstanding as at September 30, 2021 was 7.65 (December 31, 2020 – 8.36 ) years. There were 1,500,000 and 13,402,080 stock options granted with a weighted-average grant date fair value of $ 6.27 and $ 0.39 per share respectively during the nine months ended September 30, 2021 and the year ended December 31, 2020. The fair value of options granted was estimated at the grant date using the following weighted-average assumptions: Nine months ended Year ended September 30, 2021 December 31, 2020 Dividend yield [%] — — Volatility 84 % 52 %- 134 % Risk-free interest rate 0.73 % 0.73 % Expected term (in years) 1 year 7.48 years The expected life of the stock options is based on historical data and current expectations and is not necessarily indicative of exercise patterns that may occur. The expected volatility reflects the assumption that the historical volatility over a period similar to the life of the options is indicative of future trends, which may not necessarily be the actual outcome.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	13. Income taxes The Company estimates its annual effective income tax rate in recording its quarterly provision for income taxes in the various jurisdictions in which it operates. Statutory tax rate changes and other significant or unusual items are recognized as discrete items in the quarter in which they occur. The Company’s effective tax rate for the three and nine months ended September 30, 2021 and 2020 differs from the statutory rates due to valuation allowance as well as different domestic and foreign statutory tax rates. The Company recorded the following deferred tax recovery for the three and nine months ended September 30, 2021 and 2020 as follows: Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Deferred tax recovery 83,657 33,304 186,183 87,651 The Company has not yet been able to establish profitability or other sufficient significant positive evidence, to conclude that its deferred tax assets are more likely than not to be realized. Therefore, the Company continues to maintain a valuation allowance against its deferred tax assets.

Net loss per share

Net loss per share	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Net loss per share	14. Net loss per share The following table sets forth the calculation of basic and diluted net loss per share during the periods presented: Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Numerator: Net loss ( 11,425,248 ) ( 2,581,204 ) ( 61,467,070 ) ( 5,815,233 ) Denominator: Weighted-average shares, basic 280,080,786 155,913,202 216,135,190 131,557,607 Weighted-average shares, diluted 280,080,786 155,913,202 216,135,190 131,557,607 Net loss per share Basic ( 0.04 ) ( 0.02 ) ( 0.28 ) ( 0.04 ) Diluted ( 0.04 ) ( 0.02 ) ( 0.28 ) ( 0.04 ) The following potentially dilutive shares were not included in the calculation of diluted shares above as the effect would have been anti-dilutive: Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Convertible debt - 10,423,477 - 10,423,477 Options 24,572,014 19,885,297 24,572,014 19,885,297 Warrants 5,372,044 3,144,272 5,372,044 3,144,272 DSUs 3,455,224 3,455,224 3,455,224 3,455,224 33,399,282 36,908,270 33,399,282 36,908,270

Additional Cash Flow Informatio

Additional Cash Flow Information	9 Months Ended
	Sep. 30, 2021
Supplemental Cash Flow Elements [Abstract]
Additional Cash Flow Information	15. Additional cash flow information The net changes in non-cash working capital balances related to operations consist of the following: Nine months ended Nine months ended September 30, 2021 September 30, 2020 $ $ Grants receivable 38,544 ( 185,606 ) Inventory 103,831 ( 129,407 ) Other receivables ( 73,436 ) 25,583 Prepaid expenses ( 1,342,530 ) ( 73,946 ) Other current assets ( 598,307 ) 118,626 Trade payables ( 258,128 ) ( 1,302,225 ) Due from (to) related party ( 24,889 ) ( 9,349 ) Operating lease Right-of-use Asset 408,430 - Operating lease liabilities ( 18,382 ) - ( 1,764,867 ) ( 1,556,324 )

Fair value measurements

Fair value measurements	9 Months Ended
	Sep. 30, 2021
Financial Instruments Disclosure [Abstract]
Fair value measurements	16. Fair value measurements The Company uses a fair value hierarchy, based on the relative objectivity of inputs used to measure fair value, with Level 1 representing inputs with the highest level of objectivity and Level 3 representing the lowest level of objectivity. The fair values of cash and cash equivalents, restricted cash, grants and accounts receivables, due from (to) related parties and trade and other payables are classified at level 1 as they approximate their carrying values due to the short-term nature of these instruments. The current portion of long-term debt has been included in the below table. The fair values of convertible promissory notes secured convertible debentures and unsecured convertible debentures are classified at level 3 as they were accounted for under the fair value option election of ASC 825 and the estimated fair value was computed using significant inputs that are not observable in the market. The fair value of assets held for sale and preferred stock dividends are classified at level 3 as they are assessed on provisional basis until the company has additional information necessary to finalize those fair values. The company expects to complete the purchase price allocation as soon as practicable but no later than one year from the acquisition date (note 3). The fair values of the funding obligation, operating lease liabilities, and long-term debt are classified at Level 3 in the fair value hierarchy as each instrument is estimated based on unobservable inputs including discounted cash flows using the market rate, which is subject to similar risks and maturities with comparable financial instruments as at the reporting date. Carrying values and fair values of financial instruments that are not carried at fair value are as follows: September 30, 2021 December 31, 2020 Carrying value Fair value Carrying value Fair value Financial liability $ $ $ $ Funding obligation 868,169 617,264 776,884 571,839 Operating lease liabilities 2,753,990 1,605,511 270,581 270,641 Long-term debt 3,230,861 2,404,297 3,034,048 2,734,931

Revenue

Revenue	9 Months Ended
	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue	17. Revenue Revenue is disaggregated as follows: Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Product sales 297,431 982 321,431 2,904 Contract revenue 1 275,181 158,096 1,229,648 464,234 Other development revenue — 39,097 242,156 381,720 Development revenue 275,181 197,193 1,471,804 845,954 572,612 198,175 1,793,235 848,858 1 Contract revenue represents previously recorded deferred revenue that was recognized as revenue after satisfaction of performance obligations either through passage of time or after completion of specific performance milestones. Refer to note 18 for outstanding contracts.

Deferred Revenue

Deferred Revenue	9 Months Ended
	Sep. 30, 2021
Deferred Revenue Disclosure [Abstract]
Deferred Revenue	18. Deferred revenue Deferred revenue consists of the following: September 30, 2021 December 31, 2020 $ $ Covestro - Cooperation Framework 272,288 — Satair A/S-exclusive rights 739,568 815,310 Satair A/S-advance against PO 488,502 488,847 LM Aero-MetaSOLAR commercialization 230,600 646,135 US Deferred Revenue 75,000 75,000 Innovate UK-R&D tax credit 18,486 18,778 1,824,444 2,044,070 Less current portion 1,186,885 1,239,927 637,559 804,143

(Loss) Gain on financial instru

(Loss) Gain on financial instruments, net	9 Months Ended
	Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
(Loss) Gain on financial instruments, net	19. (Loss) Gain on financial instruments, net Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Loss on secured convertible promissory notes — — — ( 5,235 ) Loss on unsecured convertible promissory notes – Bridge loan — — ( 19,163,417 ) — Gain (Loss) on unsecured convertible promissory notes – Torchlight notes — 8,284 ( 343,197 ) 8,284 Gain (Loss) on secured convertible debentures — ( 96,931 ) ( 16,957,029 ) 685,792 Gain (Loss) on unsecured convertible debentures — ( 29,808 ) ( 4,076,448 ) 478,469 — ( 118,455 ) ( 40,540,091 ) 1,167,310

Leases

Leases	9 Months Ended
	Sep. 30, 2021
Leases [Abstract]
Leases	20. Leases On August 31, 2020, MMI signed a ten-year lease with a lessor in Halifax, Canada, commencing January 1, 2021, for an approximately 53,000 square foot facility, which will host the Company’s holography and lithography R&D labs and manufacturing operations. Commencing in September 2021, the Company was to pay monthly basic rent of CA$ 28,708 and additional rent for its proportionate share of operating costs and property taxes of CA$ 24,910 per month, subject to periodic adjustments. In conjunction with signing the lease, the Company entered into a loan agreement with the lessor in the amount of CA$ 500,000 to fund leasehold improvements. The Company has accounted for the lease as an operating lease and recorded a right-of-use (“ROU”) asset in the amount of $ 1,021,499 . The ROU asset is being amortized over the remaining lease term in an amount equal to the difference between the calculated straight-line expense of the total lease payments less the monthly interest calculated on the remaining lease liability. On June 9, 2021, MMI signed a lease amendment with the landlord to expand the leased space of the facility by approximately 15,000 square feet, reduce the annual rent for the 10-year term of the lease and obtain from the landlord CA$ 500,000 in cash to fund ongoing tenant improvements. In exchange, the landlord received 993,490 MMI common shares valued at CA$ 3.40 per share. The Lease Amendment was accounted for as a lease modification. As such, the operating lease liability was remeasured and the difference was recorded in ROU assets. On June 3, 2021, MMI signed a lease amendment with its lessor in Pleasanton, California to expand the leased space of the facility in the United States to include additional office space of 5,475 square feet, commencing from June 2021 onwards. Alongside this lease amendment, the durations of all of the leased spaces were also extended until August 31, 2024. The Lease Amendment was accounted for as a lease modification. As such, the operating lease liability was remeasured and the difference was recorded in ROU assets. These amendments required the Company to derecognize the existing right-of-use asset and operating lease liability, and recognize a new right-of-use asset and an operating lease liability commencing from June 2021. These amendments required the Company to derecognize the existing right-of-use asset and operating lease liability, and recognize a new right-of-use asset and an operating lease liability commencing from June 2021. The Company has one other noncancellable operating lease in the United States and United Kingdom. On September 16, 2021, the Company signed an agreement to extend the lease term of its existing leased premises at Pleasanton, California, from September 1, 2024 to September 30, 2026 . In addition, the Company also signed an agreement to lease an additional 8,904 square feet space at the same property to have a total leased area at Pleasanton of 19,506 square feet. The new lease commenced on October 1, 2021 and has the same expiry date as above. The lease amendment was accounted for as a lease modification. As such, the operating lease liability was remeasured and the difference was recorded in ROU asset as of September 30, 2021. On September 17, 2021, the Company entered into an lease agreement with Boxer Property Management Corp. to lease a space of 4,414 square feet at 85 Swanson Road, Boxborough, MA with a term of two years commencing on October 1, 2021 . The Company recognized a ROU asset and a liability of $ 132,780 as of September 30, 2021. Total operating lease expense included in the condensed consolidated interim statements of operations and comprehensive loss is as follows: Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Operating lease expense 196,547 69,455 515,084 207,808 Future minimum payments under non-cancelable operating lease obligations were as follows as of September 30, 2021: Remainder of 2021 170,660 2022 766,674 2023 760,951 2024 741,064 2025 764,748 Thereafter 1,935,263 Total minimum lease payments 5,139,360 Less: interest ( 2,385,370 ) Present value of net minimum lease payments 2,753,990 Less: current portion of lease liabilities ( 330,867 ) Total long-term lease liabilities 2,423,123

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	21. Commitments and contingencies Contractual Commitments and Purchase Obligations a) On January 29, 2021, the Company arranged an irrevocable standby letter of credit with Toronto Dominion Bank (“TD”) in favor of Covestro Deutschland AG (“Covestro”) for EUR 600,000 in relation to Cooperation Framework Agreement (“CFA”). In the event the Company fails to meet the performance milestones under the CFA, Covestro shall draw from the letter of credit with TD. The letter of credit was secured by restricted cash of CA$ 1,000,000 under a cash use agreement which has been recorded as long-term debt in the consolidated balance sheets. As of September 30, 2021, Covestro has issued certificates of reduction of $ 578,204 (EUR 375,000 ) to reduce the letter of credit after completion of certain performance milestones and an equal amount has been recorded as development revenue in the condensed consolidated interim statement of operations and comprehensive loss. As at September 30, 2021, the letter of credit has an outstanding amount of EUR 225,000 . b) During 2020, the Company signed a three-year supply deal with Covestro Deutschland AG, which provides early access to new photo-sensitive holographic film materials, the building block of MMI’s holographic product. This agreement will not only allow early access to Covestro’s R&D library of photopolymer films but will also accelerate MMI’s product development and speed of innovation. Target markets include photonics/optical filters and holographic optical elements, diffusers, laser eye protection, optical combiners, and AR (augmented reality) applications. c) During 2018, the Company arranged a guarantee/standby letter of credit with RBC in favor of Satair A/S for $ 500,000 in relation to an advance payment received. In the event the Company fails to deliver the product as per the contract or refuse to accept the return of the product as per the buyback clause of the contract or fails to repay the advance payment in accordance with the conditions of the agreement signed with Satair on September 18, 2018, Satair shall draw from the letter of credit with RBC. Borrowings from the letter of credit with RBC are repayable on demand. The letter of credit from RBC is secured by a performance security guarantee cover issued by Export Development of Canada. Further, this guarantee/standby letter of credit expires on October 5, 2021 . As at September 30, 2021, no amount has been drawn from the letter of credit with RBC. d) On December 8, 2016, the Company entered into a cooperation agreement with a large aircraft manufacturer to co-develop laser protection filters for space and aeronautical civil and military applications, METAAIR, and support the setup of manufacturing facilities for product certification and development. The cooperation agreement includes financial support provided to the Company in the form of non-recurring engineering costs of up to $ 4,000,000 to be released upon agreement of technical milestones in exchange for a royalty fee due by the Company on gross profit after sales and distribution costs. The total royalty fee to be paid may be adjusted based on the timing of the Company’s sales and the amount ultimately paid to the Company by large aircraft manufacturer to support the development.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2021
Subsequent Events [Abstract]
Subsequent Events	22. Subsequent events Subsequent to September 30, 2021, 136,964 stock options and 22,324 broker warrants were exercised. On August 5, 2021, the Company announced the signing of a definitive agreement to indirectly acquire Nanotech Security Corp. (“Nanotech”). Subject to the terms and conditions of the definitive agreement, a wholly-owned subsidiary of META will purchase 100 % of Nanotech’s common stock at CA$ 1.25 per share. In addition, Nanotech will repurchase restricted share units (“RSU”) to acquire 538,516 shares (subsequently determined to be 303,391 shares as of the transaction closing on October 5, 2021) of Nanotech common stock at a purchase price of CA$ 1.25 per RSU and in-the-money options to acquire 4,579,000 shares (subsequently determined to be 4,359,000 shares as of the transaction closing on October 5, 2021) of Nanotech common stock at a purchase price equal to CA$ 1.25 per option less the exercise price thereof. The consideration payable to securityholders under the arrangement will be payable in cash resulting in an estimated total purchase price of CA$ 90.8 million. The Company has completed the acquisition of Nanotech Security Corp. (“NTS”) on October 5, 2021 . Due to the timing of when the transaction closed, there remains insufficient information available to management to be able to complete the initial accounting for the business combination, and as such, the provisional purchase price allocation has not been disclosed.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Basis of presentation	Basis of presentation —These unaudited condensed consolidated interim financial statements and related notes are presented in accordance with accounting principles generally accepted in the United States of America (“US GAAP”). The Company’s fiscal year-end is December 31. These unaudited condensed consolidated interim financial statements do not include all of the information and notes required by US GAAP for annual financial statements. Accordingly, these unaudited condensed consolidated interim financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes for the year ended December 31, 2020 and 2019, filed with the Securities and Exchange Commission (“SEC”) on Form 8-K/A on August 17, 2021.
Functional and reporting currency	Functional and reporting currency —Items included in the condensed consolidated interim financial statements of each of the Company and its subsidiaries are measured using the currency of the primary economic environment in which the entity operates (the ‘functional currency’). The condensed consolidated interim financial statements are presented in US Dollars, which is the Company’s reporting currency.  transactions and balances - Foreign currency transactions are measured into the functional currency using the exchange rates prevailing at the dates of the associated transactions. Foreign exchange gains and losses resulting from the settlement of such transactions and from the measurement at quarter end exchange rates of monetary assets and liabilities denominated in foreign currencies are recognized in the statement of operations.  translation - The results and financial position of all subsidiaries that have a functional currency different from the presentation currency are translated into the presentation currency as follows:  Company’s assets and liabilities are translated at the closing rate at the date of the balance sheet;  Company’s income and expenses are translated at average exchange rates;  Company’s all resulting exchange differences are recognized in other comprehensive income, a separate component of equity.
Principles of consolidation	Principles of consolidation - These condensed consolidated interim financial statements include all of the accounts of Torchlight Energy Resources, Inc. and its wholly owned subsidiaries: Torchlight Energy, Inc., Torchlight Energy Operating, LLC, Hudspeth Oil Corporation, and Torchlight Hazel LLC. as well as Metamaterial Exchangeco Inc., 2798831 Ontario Inc. (“Callco”), Metamaterial Inc., Metamaterial Technologies Canada Inc., Metamaterial Technologies USA Inc., Medical Wireless Sensing Limited, Lamda Guard Inc., Lamda Lux Inc., and Lamda Solar Inc. (the “Subsidiaries”). All intercompany balances and transactions have been eliminated upon consolidation.
Use of estimates	Use of estimates - The preparation of the condensed consolidated interim financial statements in conformity with US GAAP requires management to make estimates and certain assumptions that affect the amounts reported in these condensed consolidated interim financial statements and accompanying notes. Actual results could differ from these estimates. Significant items subject to such estimates and assumptions include the valuation of financial instruments measured at fair value, goodwill impairment, lease liabilities and right-of-use assets, and stock-based compensation.
Assets Held for Sale	Assets Held for Sale - Assets held for sale are measured at the lower of their carrying amount or fair value less cost to sell. See Note 3 for further discussion of assets held for sale.
Goodwill	Goodwill - Goodwill represents the excess of the purchase price of all acquisitions over the estimated fair value of the net assets acquired. The Company evaluates goodwill for impairment at least annually or more frequently whenever events or changes in circumstances indicate that the asset may be impaired, or in the case of goodwill, the fair value of the reporting unit is below its carrying amount. When impairment indicators are identified, the Company compares the reporting unit’s fair value to its carrying amount, including goodwill. An impairment loss is recognized as the difference, if any, between the reporting unit’s carrying amount and its fair value, to the extent the difference does not exceed the total amount of goodwill allocated to the reporting unit.
Other Significant Accounting Policies	Other significant accounting policies - Other than Assets held for sale and goodwill, the Company’s accounting policies have not materially changed during the nine months ended September 30, 2021 from those disclosed in the consolidated financial statements for the year ended December 31, 2020 filed in Form 8-K/A.
Recently adopted accounting pronouncements	Recently adopted accounting pronouncements ASU 2019-12 – Income Taxes (ACS 740) Effective January 1, 2021 , the Company adopted ASU 2019-12 on a prospective basis. The new standard was issued in December 2019 with the intent of simplifying the accounting for income taxes. The accounting update removes certain exceptions to the general principles in ASC 740 Income Taxes and provides simplification by clarifying and amending existing guidance. The adoption of this ASU did not have a material impact on the Company's condensed consolidated interim financial statements. ASU 2020-09 – Debt (ACS 470) In October 2020, the FASB issued ASU 2020-09, Debt- Debt (Topic 470): Amendments to SEC Paragraphs Pursuant to SEC Release No. 33-10762 (“ASU 2020-09”). The amendments in ASU 2020-09 amend rules focused on the provision of material, relevant, and decision-useful information regarding guarantees and other credit enhancements and eliminate prescriptive requirements that have imposed unnecessary burdens and incentivized issuers of securities with guarantees and other credit enhancements to offer and sell those securities on an unregistered basis. The adopted amendments relate to the financial disclosure requirements for guarantors and issuers of guaranteed securities registered or being registered in Rule 3-10 of Regulation S-X, and affiliates whose securities collateralize securities registered or being registered in Rule 3-16 of Regulation S-X. The amendments in ASU 2020-09 are effective for public business entities for annual periods beginning after December 15, 2020. The Company has evaluated the provisions of ASU 2020-09 and noted no material impact on the Company's condensed consolidated interim financial statements or disclosures from the adoption of this ASU. ASU 2020-10 – Codification improvements In October 2020, the FASB issued ASU 2020-10, Codification Improvements, which updated various codification topics by clarifying or improving disclosure requirements to align with the SEC’s regulations. The amendments in ASU 2020-10 are effective for annual periods beginning after December 15, 2020, for public business entities. The Company adopted ASU 2020-10 on January 1, 2021 and its adoption did not have a material effect on the Company's condensed consolidated interim financial statements and related disclosures.

Reverse Take-Over Transaction_2

Reverse Take-Over Transaction (Torchlight RTO) (Tables)	9 Months Ended
	Sep. 30, 2021
Reverse Take Over Transaction [Abstract]
Summary of Purchase Price Consideration to Assets Acquired, Based On Fair Values	The following table summarizes the preliminary allocation of the purchase price to the assets acquired on a relative fair value basis: Amount ($) Fair value of deemed issuance of MMI’s stock – Common Stock 82,814 Fair value of deemed issuance of MMI’s stock – Additional paid in capital 357,206,830 Fair value of Torchlight’s outstanding warrants – Additional paid in capital 2,943,370 Fair value of Torchlight’s outstanding options – Additional paid in capital 9,397,988 Total Effect on Equity 369,631,002 Effective settlement of notes payable by MMI to Torchlight 1 ( 11,322,637 ) Preferred stock liability 2 77,906,354 436,214,719 Net assets (liabilities) of Torchlight: Cash and cash equivalents 146,954,733 Other assets 354,662 Oil and natural gas properties 2 72,797,392 Accounts payable ( 2,698,650 ) Other liabilities ( 21,937 ) Goodwill 3 218,828,519 436,214,719

Inventory (Tables)

Inventory (Tables)	9 Months Ended
	Sep. 30, 2021
Inventory Disclosure [Abstract]
Summary of Inventory	Inventory consists of photosensitive materials, lenses, laser protection film and finished eyewear, and is comprised of the following: September 30, 2021 December 31, 2020 $ $ Raw materials 271,364 378,265 Supplies 13,891 14,414 Work in process 64,905 69,381 Finished goods 8,804 1,322 Total inventory 358,964 463,382

Property, plant and equipment_2

Property, plant and equipment, net (Tables)	9 Months Ended
	Sep. 30, 2021
Property, Plant and Equipment [Abstract]
Schedule of Property and Equipment	Property, plant and equipment consist of the following: Useful life September 30, 2021 December 31, 2020 (years) $ $ Computer equipment 3 - 5 246,854 163,856 Computer software 1 258,614 256,554 Manufacturing equipment 2 - 5 8,150,928 6,645,986 Office furniture 5 - 7 129,736 99,234 Enterprise Resource Planning software 5 210,105 210,254 Assets under construction N/A 4,653,338 424,393 13,649,575 7,800,277 Accumulated depreciation and impairment ( 6,123,586 ) ( 5,039,106 ) 7,525,989 2,761,171

Unsecured Convertible Promiss_2

Unsecured Convertible Promissory Notes (Tables)	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Schedule of Commercial Paper Roll Forward	Nine months ended Year ended September 30, 2021 December 31, 2020 $ $ Bridge loan Torchlight Total Bridge loan Torchlight Total Beginning balance 538,020 665,215 1,203,235 — — — Issued 3,963,386 10,000,000 13,963,386 378,042 1,000,000 1,378,042 Interest accrued 17,804 329,965 347,769 2,698 12,701 15,399 Fair value loss (gain) 19,163,417 333,947 19,497,364 139,609 ( 354,839 ) ( 215,230 ) Unrealized fair value loss (gain) due to own credit risk — ( 5,554 ) ( 5,554 ) — 14,132 14,132 Unrealized foreign currency exchange gain — ( 258,480 ) ( 258,480 ) — ( 23,849 ) ( 23,849 ) Foreign currency translation adjustment ( 26,262 ) 257,544 231,282 17,671 17,070 34,741 Conversion to common stock ( 23,656,365 ) — ( 23,656,365 ) — — — Elimination pursuant to Torchlight RTO (note 3) — ( 11,322,637 ) ( 11,322,637 ) — — — Ending balance — — — 538,020 665,215 1,203,235
Schedule of Commercial Paper	Tranche 1 Tranche 2 Tranche 3 Face value of notes issued $ 500,000 $ 500,000 $ 10,000,000 Issuance date September 20, 2020 December 16, 2020 February 18, 2021 Maturity date September 20, 2022 December 16, 2022 February 18, 2022 Interest rate 8 % 8 % 8 % Conversion price CA$ 0.35 CA$ 0.62 CA$ 2.80

Secured Convertible Debentures

Secured Convertible Debentures (Tables)	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Schedule of Secured Convertible Debentures	Nine months ended Year ended September 30, 2021 December 31, 2020 $ $ Beginning balance 5,545,470 — Issued — 3,630,019 Interest accrued 121,860 508,757 Interest paid ( 64,528 ) ( 285,154 ) Fair value loss 16,408,482 511,699 Fair value loss—own credit — 865,280 Foreign currency translation adjustment 107,498 314,869 Conversion to common stock ( 22,118,782 ) — Ending balance — 5,545,470

Unsecured Convertible Debentu_2

Unsecured Convertible Debentures (Tables)	9 Months Ended
	Sep. 30, 2021
Debt Instruments [Abstract]
Summary of Unsecured Convertible Debentures	Unsecured convertible debentures (the “Unsecured Debentures”) consist of the following: Nine months ended Year ended September 30, 2021 December 31, 2020 $ $ Beginning balance 1,825,389 585,267 Issued — 693,784 Interest accrued 23,660 147,304 Fair value loss 3,914,931 189,708 Fair value loss due to own credit risk — 154,347 Foreign currency translation adjustment 5,495 54,979 Conversion to common stock ( 5,769,475 ) — Ending balance — 1,825,389

Long-Term Debt (Tables)

Long-Term Debt (Tables)	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Summary of Long Team Debt	September 30, December 31, $ $ ACOA Business Development Program (“BDP”) 2012 interest-free loan 1 with a maximum contribution of CA$ 500,000 , repayable in monthly repayments commencing October 1, 2015 of CA$ 5,952 until June 1, 2023 . Loan repayments were temporarily paused effective April 1, 2020 until January 1, 2021 as a result of the COVID-19 outbreak. As at September 30, 2021, the amount drawn down on the loan, net of repayments, is CA$ 125,000 (2020 - CA$ 178,571 ). 92,606 129,384 ACOA Atlantic Innovation Fund (“AIF”) 2015 interest-free loan 1,2 with a maximum contribution of CA$ 3,000,000 . Annual repayments, commencing June 1, 2021 , are calculated as a percentage of gross revenue for the preceding fiscal year, at Nil when gross revenues are less than CA$ 1,000,000 , 5 % when gross revenues are less than CA$ 10,000,000 and greater than CA$ 1,000,000 , and CA$ 500,000 plus 1 % of gross revenues when gross revenues are greater than CA$ 10,000,000 . As at September 30, 2021, the amount drawn down on the loan is CA$ 3,000,000 (2020 - CA$ 3,000,000 ). 1,649,461 1,458,954 ACOA BDP 2018 interest-free loan 1,3 with a maximum contribution of CA$ 3,000,000 , repayable in monthly repayments commencing June 1, 2021 of CA$ 31,250 until May 1, 2029 . As at September 30, 2021, the amount drawn down on the loan, net of repayments, is CA$ 2,875,000 (2020 - CA$ 3,000,000 ). 1,336,370 1,285,307 ACOA BDP 2019 interest-free loan1 with a maximum contribution of CA$ 100,000 , repayable in monthly repayments commencing June 1, 2021 of CA$ 1,400 until May 1, 2027 . As at September 30, 2021, the amount drawn down on the loan, net of repayments, is CA$ 94,444 (2020 - CA$ 62,165 ). 42,888 30,138 ACOA Regional Relief and Recovery Fund (“RRRF”) 2020 interest-free loan with a maximum contribution of CA$ 390,000 , repayable on monthly repayments commencing April 1, 2023 of CA$ 11,000 until April 1, 2026 . As at September 30, 2021, the amount drawn down on the loan is CA$ 390,000 (2020 - $ Nil ). 109,536 — CAIXA Capital loan bearing interest at 6-month EURIBOR rate plus 4 % interest spread. The loan principal and interest are fully repayable on January 15, 2025 . On March 12, 2021, the principal loan balance with outstanding interest totaling $ 209,506 (EUR 171,080 ) was converted into MMI common stock at $ 3.87 per share 4 . Pursuant to the conversion, CAIXA Capital was issued 67,597 MMI common shares. — 130,265 3,230,861 3,034,048 Less: current portion 532,346 290,544 2,698,515 2,743,504 1 The Company was required to maintain a minimum balance of positive equity throughout the term of the loan. However, on November 14, 2019, ACOA waived this requirement for the period ending June 30, 2019 and for each period thereafter until the loan is fully repaid. 2 The carrying amount of the ACOA AIF loan is reviewed each reporting period and adjusted as required to reflect management’s best estimate of future cash flows, discounted at the original effective interest rate. 3 A portion of the ACOA BDP 2018 loan was used to finance the acquisition and construction of manufacturing equipment resulting in $ 425,872 was recorded as deferred government assistance, which is being amortized over the useful life of the associated equipment. The Company recorded the amortization expense for the nine months ended September 30, 2021 of $ 107,538 (nine months ended September 30, 2020—$ 100,968 ) as government assistance in the condensed consolidated interim statements of operations and comprehensive loss. 4 MMI has recognized the common stock issued in the consolidated statements of changes in stockholders’ equity at fair value at time of conversion to be $ 221,842 and recorded the difference of $ 88,763 between the fair value of the common stock and the carrying value of the long-term debt as loss on debt settlement in the condensed consolidated interim statements of operations and comprehensive loss.

Capital Stock (Tables)

Capital Stock (Tables)	9 Months Ended
	Sep. 30, 2021
Class of Warrant or Right [Line Items]
Summary of Changes in Warrant	The following table summarizes the changes in warrants of the Company: Nine months ended Year ended September 30, 2021 December 31, 2020 Number of Number of warrants 1 Amount 1 warrants 1 Amount 1 # $ # $ Balance, beginning of period 3,046,730 402,883 1,590,866 132,299 Issued 2,153,500 3,831,124 1,455,864 166,916 Adjustment to 2019 warrants — — — 103,668 Exercised ( 291,036 ) ( 41,242 ) — — Fair value of deemed issuance to Torchlight 426,639 2,943,370 — — Balance, end of period 5,335,833 7,136,135 3,046,730 402,883 1 All references to numbers of warrants have been retroactively restated to reflect as if Torchlight RTO had taken place as of the beginning of the earliest period presented. The numbers of warrants issued pre-CPM RTO have been divided by 2 , multiplied by the 2.75 CPM conversion ratio and the 1.845 Torchlight conversion ratio. There were no warrants issued post CPM RTO except for Torchlight warrants
Summary of Changes in Broken Warrant	The following table summarizes the changes in broker warrants of the Company: Nine months ended Year ended September 30, 2021 December 31, 2020 Number of Number of warrants 1 Amount 1 warrants 1 Amount 1 # $ # $ Balance, beginning of period 97,542 16,144 — — Issued — — 97,542 16,144 Exercised ( 61,331 ) ( 10,892 ) — — Balance, end of period 36,211 5,252 97,542 16,144 1 All references to numbers of broker warrants have been retroactively restated to reflect the number of stock of the legal parent (accounting acquiree) issuable following the reverse acquisition. The numbers of broker warrants issued pre-CPM RTO have been multiplied by the 2.75 CPM conversion ratio and the 1.845 Torchlight conversion ratio. There were no broker warrants issued post CPM RTO.
Summary of Option Pricing Model	The fair value of warrants and broker warrants that were issued and estimated using the Black-Scholes option pricing model have the following inputs and assumptions: Nine months ended Year ended September 30, 2021 December 31, 2020 Risk free interest rate 0.45 % - 0.98 % 0.80 % - 1.43 % Expected volatility 92 % 134 % Expected dividend yield 0 % 0 % Expected forfeiture rate 0 % 0 % Common stock price 5.31 1.70 Exercise price per common stock $ 0.85 - $ 4.50 $ 1.70 - $ 2.475 Expected term of warrants 2.20 - 5 years 2 years The fair value of warrants that were issued and estimated using the Monte Carlo Simulation have the following inputs and assumptions: Nine months ended September 30, 2021 Risk free interest rate 0.42 % Weighted average expected volatility 80 % Expected term of warrants 5 years

Share-Based Payments (Tables)

Share-Based Payments (Tables)	9 Months Ended
	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Summary of change in outstanding share DSU	The following table summarizes the change in outstanding DSUs of the Company: Nine months ended Year ended September 30, 2021 December 31, 2020 # 1 # 1 Outstanding, beginning of period 3,455,224 3,977,820 Converted into common stock — ( 522,596 ) Outstanding, end of period 3,455,224 3,455,224
Summary of equity instruments other than options DSU shares outstanding	Information concerning units outstanding is as follows: September 30, 2021 December 31, 2020 Issue price Number of units 1 Number of units 1 CA$ 0.27 3,348,675 3,348,675 CA$ 0.51 106,549 106,549 3,455,224 3,455,224 1 All references to numbers of DSUs have been retroactively restated to reflect as if the Torchlight RTO had taken place as of the beginning of the earliest period presented. The numbers of DSUs issued pre-CPM RTO have been multiplied by the 2.75 CPM conversion ratio and the 1.845 Torchlight conversion ratio. There were no DSUs issued post-CPM RTO.
Summary of stock-based compensation expenses	Total stock-based compensation expense included in the condensed consolidated interim statements of operations was as follows: Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Selling & Marketing 5,976 15,616 26,935 53,267 General & Administrative 93,453 266,338 434,135 729,688 Research & Development 101,347 112,913 383,489 261,508 200,776 394,867 844,559 1,044,463
Summary of change in share outstanding options	The following table summarizes the change in outstanding stock options of the Company: Weighted Nine months Weighted Year average ended average ended exercise September 30, exercise December 31, stock Number of stock Number of Outstanding, beginning of period CA$ 0.33 24,477,507 CA$ 0.33 14,502,303 Issued to CPM executives and directors pursuant to CPM RTO — CA$ 0.19 1,291,500 Granted — CA$ 0.34 13,402,080 Exercised CA$ 0.34 ( 1,340,292 ) — Forfeited CA$ 0.34 ( 65,201 ) CA$ 0.34 ( 2,627,510 ) Expired — CA$ 0.27 ( 2,090,866 ) Fair value of deemed issuance to Torchlight US$ 1.75 1,500,000 — Outstanding, end of period CA$ 0.44 24,572,014 CA$ 0.33 24,477,507
Summary of stock options outstanding	Below is a summary of the outstanding options as at September 30, 2021: Exercise price Number outstanding 1 Number exercisable 1 CA$ 0.34 22,194,902 12,951,468 CA$ 0.15 558,112 558,113 CA$ 0.19 369,000 369,000 US$ 2.00 1,125,000 1,125,000 US$ 1.00 325,000 325,000 24,572,014 15,328,581 Below is a summary of the outstanding options as at December 31, 2020: Exercise price Number outstanding 1 Number exercisable 1 CA$ 0.34 23,550,394 9,636,758 CA$ 0.15 558,113 558,113 CA$ 0.19 369,000 369,000 24,477,507 10,563,871 1 All references to numbers of stock options have been retroactively restated to reflect as if the Torchlight RTO had taken place as of the beginning of the earliest period presented. The numbers of stock options issued pre-CPM RTO have been multiplied by the 2.75 CPM conversion ratio and the 1.845 Torchlight conversion ratio. The numbers of stock options issued post CPM RTO have been multiplied by the 1.845 Torchlight conversion ratio.
Summary of fair value grant using weighted-average assumptions	The fair value of options granted was estimated at the grant date using the following weighted-average assumptions: Nine months ended Year ended September 30, 2021 December 31, 2020 Dividend yield [%] — — Volatility 84 % 52 %- 134 % Risk-free interest rate 0.73 % 0.73 % Expected term (in years) 1 year 7.48 years

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Summary Of Deferred Tax Expense Benefit	The Company recorded the following deferred tax recovery for the three and nine months ended September 30, 2021 and 2020 as follows: Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Deferred tax recovery 83,657 33,304 186,183 87,651

Net loss per share (Tables)

Net loss per share (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Summary Basic and Diluted Net Loss Per Share	The following table sets forth the calculation of basic and diluted net loss per share during the periods presented: Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Numerator: Net loss ( 11,425,248 ) ( 2,581,204 ) ( 61,467,070 ) ( 5,815,233 ) Denominator: Weighted-average shares, basic 280,080,786 155,913,202 216,135,190 131,557,607 Weighted-average shares, diluted 280,080,786 155,913,202 216,135,190 131,557,607 Net loss per share Basic ( 0.04 ) ( 0.02 ) ( 0.28 ) ( 0.04 ) Diluted ( 0.04 ) ( 0.02 ) ( 0.28 ) ( 0.04 )
Summary of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following potentially dilutive shares were not included in the calculation of diluted shares above as the effect would have been anti-dilutive: Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Convertible debt - 10,423,477 - 10,423,477 Options 24,572,014 19,885,297 24,572,014 19,885,297 Warrants 5,372,044 3,144,272 5,372,044 3,144,272 DSUs 3,455,224 3,455,224 3,455,224 3,455,224 33,399,282 36,908,270 33,399,282 36,908,270

Additional Cash Flow Informat_2

Additional Cash Flow Information (Tables)	9 Months Ended
	Sep. 30, 2021
Supplemental Cash Flow Elements [Abstract]
Summary Of Cash Flow, Operating Capital	The net changes in non-cash working capital balances related to operations consist of the following: Nine months ended Nine months ended September 30, 2021 September 30, 2020 $ $ Grants receivable 38,544 ( 185,606 ) Inventory 103,831 ( 129,407 ) Other receivables ( 73,436 ) 25,583 Prepaid expenses ( 1,342,530 ) ( 73,946 ) Other current assets ( 598,307 ) 118,626 Trade payables ( 258,128 ) ( 1,302,225 ) Due from (to) related party ( 24,889 ) ( 9,349 ) Operating lease Right-of-use Asset 408,430 - Operating lease liabilities ( 18,382 ) - ( 1,764,867 ) ( 1,556,324 )

Fair value measurements (Tables

Fair value measurements (Tables)	9 Months Ended
	Sep. 30, 2021
Financial Instruments Disclosure [Abstract]
Summary of Fair Value of Financial Instruments	September 30, 2021 December 31, 2020 Carrying value Fair value Carrying value Fair value Financial liability $ $ $ $ Funding obligation 868,169 617,264 776,884 571,839 Operating lease liabilities 2,753,990 1,605,511 270,581 270,641 Long-term debt 3,230,861 2,404,297 3,034,048 2,734,931

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Summary of Revenue Disaggregated	Revenue is disaggregated as follows: Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Product sales 297,431 982 321,431 2,904 Contract revenue 1 275,181 158,096 1,229,648 464,234 Other development revenue — 39,097 242,156 381,720 Development revenue 275,181 197,193 1,471,804 845,954 572,612 198,175 1,793,235 848,858 1 Contract revenue represents previously recorded deferred revenue that was recognized as revenue after satisfaction of performance obligations either through passage of time or after completion of specific performance milestones. Refer to note 18 for outstanding contracts.

Deferred Revenue (Tables)

Deferred Revenue (Tables)	9 Months Ended
	Sep. 30, 2021
Deferred Revenue Disclosure [Abstract]
Summary Of Deferred Revenue	Deferred revenue consists of the following: September 30, 2021 December 31, 2020 $ $ Covestro - Cooperation Framework 272,288 — Satair A/S-exclusive rights 739,568 815,310 Satair A/S-advance against PO 488,502 488,847 LM Aero-MetaSOLAR commercialization 230,600 646,135 US Deferred Revenue 75,000 75,000 Innovate UK-R&D tax credit 18,486 18,778 1,824,444 2,044,070 Less current portion 1,186,885 1,239,927 637,559 804,143

(Loss) Gain on financial inst_2

(Loss) Gain on financial instruments, net (Tables)	9 Months Ended
	Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of (Loss) Gain on Financial Instruments, Net	Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Loss on secured convertible promissory notes — — — ( 5,235 ) Loss on unsecured convertible promissory notes – Bridge loan — — ( 19,163,417 ) — Gain (Loss) on unsecured convertible promissory notes – Torchlight notes — 8,284 ( 343,197 ) 8,284 Gain (Loss) on secured convertible debentures — ( 96,931 ) ( 16,957,029 ) 685,792 Gain (Loss) on unsecured convertible debentures — ( 29,808 ) ( 4,076,448 ) 478,469 — ( 118,455 ) ( 40,540,091 ) 1,167,310

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2021
Leases [Abstract]
Summary Of Future Minimum Payments Under Non-cancelable Operating Lease Obligations	Future minimum payments under non-cancelable operating lease obligations were as follows as of September 30, 2021: Remainder of 2021 170,660 2022 766,674 2023 760,951 2024 741,064 2025 764,748 Thereafter 1,935,263 Total minimum lease payments 5,139,360 Less: interest ( 2,385,370 ) Present value of net minimum lease payments 2,753,990 Less: current portion of lease liabilities ( 330,867 ) Total long-term lease liabilities 2,423,123
Summary of Operating Lease Expense	Total operating lease expense included in the condensed consolidated interim statements of operations and comprehensive loss is as follows: Three months ended Nine months ended September 30, September 30, 2021 2020 2021 2020 Operating lease expense 196,547 69,455 515,084 207,808

Corporate Information - Additio

Corporate Information - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2021
Arrangement Agreement [Member] | Torchlight [Member]
Date of acquisition agreement	Dec. 14, 2020

Significant Accounting Polici_3

Significant Accounting Policies - Additional Information (Details)	Sep. 30, 2021
ASU 2019-12 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 1, 2021
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true
ASU 2020-10 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 1, 2021
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true

Reverse Take-Over Transaction_3

Reverse Take-Over Transaction (Torchlight RTO) - Summary of Purchase Price to Assets Acquired, On Relative Fair Values Basis (Detail)	9 Months Ended
	Sep. 30, 2021USD ($)
Business Acquisition [Line Items]
Fair value of deemed issuance of MMI's stock	$ 436,214,719
Total Effect on Equity	369,631,002
Effective settlement of notes payable by MMI to Torchlight	(11,322,637)
Preferred stock liability	77,906,354
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Goodwill	218,828,518
Torchlight [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Cash and cash equivalents	146,954,733
Other assets	354,662
Accounts payable	(2,698,650)
Other liabilities	(21,937)
Goodwill	218,828,519
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	436,214,719
Torchlight [Member] | Oil And Natural Gas Properties [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Oil and natural gas properties	72,797,392
Common Stock [Member]
Business Acquisition [Line Items]
Fair value of deemed issuance of MMI's stock	82,814
Additional Paid-in Capital [Member]
Business Acquisition [Line Items]
Fair value of deemed issuance of MMI's stock	357,206,830
Additional Paid-in Capital [Member] | Torchlight [Member]
Business Acquisition [Line Items]
Fair value of Torchlight's outstanding warrants – Additional paid in capital	2,943,370
Fair value of Torchlight's outstanding options – Additional paid in capital	$ 9,397,988

Reverse Take-Over Transaction_4

Reverse Take-Over Transaction (Torchlight RTO) - Additional Information (Detail)	Jun. 28, 2021USD ($)$ / sharesshares	Jun. 25, 2021shares	Sep. 30, 2021USD ($)$ / shares	Sep. 30, 2021USD ($)$ / shares	Sep. 30, 2020USD ($)	Jun. 11, 2021$ / sharesshares	Dec. 31, 2020$ / shares
Business Acquisition [Line Items]
Common stock, shares par value | $ / shares			$ 0.001	$ 0.001			$ 0
Goodwill			$ 218,828,518	$ 218,828,518
Proforma Business acquisition increase in Revenue				5,977	$ 191,819
Proforma Business acquisition in increase in loss				$ 6,768,457	$ 7,878,064
Decrease in other assets			146,761
Increase in accounts payable			1,067,791
Increase in Goodwill			1,214,552
Torchlight [Member]
Business Acquisition [Line Items]
Reverse stock split ratio				0.5
Business combination shares equity interest issued or issuable | shares	44,885,634
Business acquisition share price | $ / shares	$ 7.96
Preferred stock shares authorized | shares						10,000,000
Expected costs in maintaining and selling the assets				$ 5,000,000
Goodwill			218,828,519	218,828,519
Business Acquisition Percentage Of Voting Interests Acquired	70.00%
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	$ 357,289,644
Torchlight [Member] | Commercial Paper [Member]
Business Acquisition [Line Items]
Business Combination, Separately Recognized Transactions, Liabilities Recognized			$ 11,000,000	$ 11,000,000
Increase In The Authorized Number Of Shares [Member] | Torchlight [Member]
Business Acquisition [Line Items]
Preferred stock shares authorized | shares						200,000,000
Preferred stock par or stated value per share | $ / shares						$ 0.001
Meta [Member] | Torchlight [Member]
Business Acquisition [Line Items]
Business combination shares equity interest issued or issuable | shares		196,968,803
Business combination total consideration transferred value	436,214,719
Business combination Portion of the total consideration transferred	436,200,000
Business combination recognized identifiable assets acquired and liabilities assumed net	217,400,000
Goodwill	$ 218,800,000
Former Security Holders Of Meta [Member] | Resulting Issuer [Member] | Meta [Member]
Business Acquisition [Line Items]
Equity method investment, ownership percentage			70.00%	70.00%
Holders Of Torchlight [Member]
Business Acquisition [Line Items]
Reverse stock split ratio		0.5
Arrangement Agreement [Member] | Torchlight [Member]
Business Acquisition [Line Items]
Date of acquisition agreement				Dec. 14, 2020
Arrangement Agreement [Member] | Meta [Member] | As Part Of Conversion [Member]
Business Acquisition [Line Items]
Common stock, conversion basis				1.845
Common stock, shares par value | $ / shares			$ 0.001	$ 0.001
Series A Preferred Stock [Member] | Holders Of Torchlight [Member]
Business Acquisition [Line Items]
Basis for preference dividend declaration		one-for-one basis
Series A Non Voting Preferred Stock [Member] | Holders Of Torchlight [Member]
Business Acquisition [Line Items]
Dividend record date		Jun. 25, 2021

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($)		Mar. 16, 2021	Mar. 12, 2021	Sep. 30, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Due from related party, current				$ 64,708
Due to related party, current					$ 245,467
Common Stock [Member]
Related Party Transaction [Line Items]
Stock issued during period for conversion of related party debt, Shares	[1]			150,522
Lamda Guard Technologies Ltd LGTL [Member]
Related Party Transaction [Line Items]
Due from related party, current				$ 64,708	0
Due to related party, current					$ 245,467
Lamda Guard Technologies Ltd LGTL [Member] | Conversion Of Related Party Amount Into Shares [Member]
Related Party Transaction [Line Items]
Conversion of stock, Amount converted		$ 290,230
Adjustments to shares issued for conversion of related party debt				$ 64,245
Lamda Guard Technologies Ltd LGTL [Member] | Conversion Of Related Party Amount Into Shares [Member] | Common Stock [Member]
Related Party Transaction [Line Items]
Stock issued during period for conversion of related party debt, Shares		81,584		225,986
Shares issued price per share		$ 4.51	$ 4.51
Percentage of premium on share price			10.00%
Share price			$ 4.10
Directors [Member]
Related Party Transaction [Line Items]
Due to related party, current				$ 0
[1]	Retroactively restated from the earliest period presented for the Torchlight RTO (“Reverse acquisition”) and CPM RTO (“Reverse Recapitalization”) as described in Note 3

Inventory - Summary of Inventor

Inventory - Summary of Inventory (Detail) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 271,364	$ 378,265
Supplies	13,891	14,414
Work in process	64,905	69,381
Finished goods	8,804	1,322
Total inventory	$ 358,964	$ 463,382

Property, plant and equipment_3

Property, plant and equipment, net - Schedule of Property and Equipment (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 13,649,575	$ 7,800,277
Accumulated depreciation and impairment	(6,123,586)	(5,039,106)
Property, Plant and Equipment, Net	7,525,989	2,761,171
Computer equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 246,854	163,856
Computer equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Computer equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Computer software [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 258,614	256,554
Property, Plant and Equipment, Useful Life	1 year
Manufacturing equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 8,150,928	6,645,986
Manufacturing equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Manufacturing equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Office furniture [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 129,736	99,234
Office furniture [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Office furniture [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Enterprise Resource Planning software [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 210,105	210,254
Property, Plant and Equipment, Useful Life	5 years
Assets under construction [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 4,653,338	$ 424,393

Property and Equipment - Additi

Property and Equipment - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Property, Plant and Equipment [Abstract]
Depreciation	$ 379,824	$ 372,726	$ 1,103,651	$ 1,184,772

Unsecured Convertible Promiss_3

Unsecured Convertible Promissory Notes - Schedule of Commercial Paper Roll Forward (Detail) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Schedule Of Commercial Paper Roll Forward [Line Items]
Beginning balance	$ 1,203,235
Ending balance		$ 1,203,235
Commercial Paper [Member]
Schedule Of Commercial Paper Roll Forward [Line Items]
Beginning balance	1,203,235	0
Issued	13,963,386	1,378,042
Interest accrued	347,769	15,399
Fair value loss (gain)	19,497,364	(215,230)
Unrealized fair value loss (gain) due to own credit risk	(5,554)	14,132
Unrealized foreign currency exchange gain	(258,480)	(23,849)
Foreign currency translation adjustment	231,282	34,741
Conversion to common stock	(23,656,365)	0
Elimination pursuant to Torchlight RTO	(11,322,637)
Ending balance	0	1,203,235
Bridge Loan [Member] | Commercial Paper [Member]
Schedule Of Commercial Paper Roll Forward [Line Items]
Beginning balance	538,020	0
Issued	3,963,386	378,042
Interest accrued	17,804	2,698
Fair value loss (gain)	19,163,417	139,609
Unrealized fair value loss (gain) due to own credit risk	0	0
Foreign currency translation adjustment	(26,262)	17,671
Conversion to common stock	(23,656,365)	0
Ending balance	0	538,020
Torchlight [Member] | Commercial Paper [Member]
Schedule Of Commercial Paper Roll Forward [Line Items]
Beginning balance	665,215	0
Issued	10,000,000	1,000,000
Interest accrued	329,965	12,701
Fair value loss (gain)	333,947	(354,839)
Unrealized fair value loss (gain) due to own credit risk	(5,554)	14,132
Unrealized foreign currency exchange gain	(258,480)	(23,849)
Foreign currency translation adjustment	257,544	17,070
Elimination pursuant to Torchlight RTO	(11,322,637)
Ending balance	$ 0	$ 665,215

Unsecured Convertible Promiss_4

Unsecured Convertible Promissory Notes - Schedule of Commercial Paper Roll Forward (Parenthetical) (Detail)	Mar. 03, 2021USD ($)	Feb. 16, 2021USD ($)shares	Nov. 30, 2020CAD ($)$ / shares	Sep. 30, 2021USD ($)	Dec. 31, 2020USD ($)	Feb. 16, 2021$ / shares	Sep. 15, 2020USD ($)
Short-term Debt [Line Items]
Fair value gain loss due to fair value option measurement	$ 16,408,482
Bridge Loan [Member]
Short-term Debt [Line Items]
Debt instrument conversion price | $ / shares						$ 0.50
Bridge Loan [Member] | Minimum [Member]
Short-term Debt [Line Items]
Long term debt maturity date				Mar. 28, 2021
Bridge Loan [Member] | Commitment Letter [Member]
Short-term Debt [Line Items]
Debt instrument conversion price | $ / shares			$ 0.50
Fair value gain loss due to fair value option measurement					$ 139,609
Amount of debt instrument converted		$ 4,361,930
Debt instrument conversion, Number of shares converted | shares		20,391,239
Debt securities realized gain loss		$ 19,163,417
Line of credit facility, maximum borrowing capacity			$ 5,500,000
Proceeds from line of credit per month			$ 500,000
Line of credit facility, interest rate during period			8.00%
Bridge Loan [Member] | Commitment Letter [Member] | Recycled To Statements Of Operation [Member]
Short-term Debt [Line Items]
Fair value gain loss attributable to instrument-specific credit risk in other comprehensive income		$ 23,656,365
Commercial Paper [Member]
Short-term Debt [Line Items]
Fair value gain loss due to fair value option measurement				$ 525,920
Other comprehensive income loss financial liability fair value option unrealized gain loss arising during period after tax				5,554	(14,132)
Commercial Paper [Member] | Torchlight [Member]
Short-term Debt [Line Items]
Fair value gain loss attributable to instrument-specific credit risk in other comprehensive income				9,011
Fair value gain loss due to fair value option measurement				191,973
Financial instruments fair value option total unrealized gain loss instrument specific credit risk				197,527
Other comprehensive income loss financial liability fair value option unrealized gain loss arising during period after tax				$ 5,554	$ (14,132)
Commercial Paper [Member] | Non Binding Letter Of Intent LOI [Member]
Short-term Debt [Line Items]
Debt instrument face amount							$ 11,000,000
Short term debt, Bearing fixed interest percentage							8.00%

Unsecured Convertible Promiss_5

Unsecured Convertible Promissory Notes - Schedule of Commercial Paper (Detail) - 9 months ended Sep. 30, 2021 - Commercial Paper [Member]	$ / shares	USD ($)
Debt Conversion Tranche One [Member]
Schedule Of Commercial Paper [Line Items]
Face value of notes issued | $		$ 500,000
Issuance date	Sep. 20, 2020
Maturity date	Sep. 20, 2022
Interest rate		8.00%
Conversion price | $ / shares	$ 0.35
Debt Conversion Tranche Two [Member]
Schedule Of Commercial Paper [Line Items]
Face value of notes issued | $		$ 500,000
Issuance date	Dec. 16, 2020
Maturity date	Dec. 16, 2022
Interest rate		8.00%
Conversion price | $ / shares	$ 0.62
Debt Conversion Tranche Three [Member]
Schedule Of Commercial Paper [Line Items]
Face value of notes issued | $		$ 10,000,000
Issuance date	Feb. 18, 2021
Maturity date	Feb. 18, 2022
Interest rate		8.00%
Conversion price | $ / shares	$ 2.80

Secured Convertible Debenture_2

Secured Convertible Debentures - Schedule of Secured Convertible Debentures (Detail) - USD ($)	9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Schedule Of Convertible Debt Current Roll Forward [Line Items]
Beginning balance	$ 5,545,470
Interest paid	(64,528)	$ (114,040)
Ending balance			$ 5,545,470
Secured Convertible Debentures [Member]
Schedule Of Convertible Debt Current Roll Forward [Line Items]
Beginning balance	5,545,470
Issued			3,630,019
Interest accrued	121,860		508,757
Interest paid	(64,528)		(285,154)
Fair value loss	16,408,482		511,699
Fair value loss--own credit			865,280
Foreign currency translation adjustment	107,498		314,869
Conversion to common stock	$ (22,118,782)
Ending balance			$ 5,545,470

Secured Convertible Debenture_3

Secured Convertible Debentures - Additional Information (Detail)	Mar. 03, 2021USD ($)shares	Feb. 16, 2021USD ($)	Apr. 03, 2020CAD ($)d$ / sharesshares	Sep. 30, 2021USD ($)	Dec. 31, 2020USD ($)	Mar. 03, 2021$ / shares	Jun. 30, 2020
Debt Instrument [Line Items]
Change in fair value attributable to instrument-specific credit risk of liabilities measured at fair value under the fair value option recognized in other comprehensive income		$ 3,914,931
Fair value gain loss on financial instruments recognized in earnings	$ 16,408,482
BDC Capital Inc [Member]
Debt Instrument [Line Items]
Non compounding interest percentage payment in kind			8.00%
BDC Capital Inc [Member] | Reduced Rate of Interest [Member]
Debt Instrument [Line Items]
Non compounding interest percentage payment in kind							5.00%
Maximum [Member] | BDC Capital Inc [Member]
Debt Instrument [Line Items]
Percentage reduction in non compounding interest rate			3.00%
Secured Convertible Debentures [Member]
Debt Instrument [Line Items]
Change in fair value attributable to instrument-specific credit risk of liabilities measured at fair value under the fair value option recognized in other comprehensive income				$ 511,699	$ 511,699
Fair value gain loss on financial instruments recognized in earnings					865,280
Debt Instrument, Covenant Description			The secured debentures were subject to a covenant clause, whereby MMI is required to maintain a working capital ratio of no less than 3:1.
Working capital ratio			3:1
Financial instruments fair value option total unrealized gain loss instrument specific credit risk					$ 1,376,979
Secured Convertible Debentures [Member] | BDC Capital Inc [Member]
Debt Instrument [Line Items]
Debt instrument face amount			$ 5,000,000
Debt instrument maturity date			Oct. 31, 2024
Debt instrument fixed rate			10.00%
Secured Convertible Debentures [Member] | Conversion of Secured Debentures And PIK [Member] | Prospective Conversion Of Debt Into Equity [Member]
Debt Instrument [Line Items]
Debt consecutive trading days | d			20
Minimum trading volume of common shares per day for determining the conversion price | shares			100,000
Secured Convertible Debentures [Member] | Conversion Of Secured Debentures [Member] | Actual Conversion Of Secured Debt Instruments [Member]
Debt Instrument [Line Items]
Debt instrument conversion price per share | $ / shares						$ 0.70
Debt instrument conversion converted instrument amount	$ 3,910,954
Debt Conversion, common Shares Issued | shares	14,155,831
Reclassification out of accumulated other comprehehsive income into income statement on conversion into equity	$ 22,118,782
Secured Convertible Debentures [Member] | Minimum [Member] | Conversion of Secured Debentures And PIK [Member] | Prospective Conversion Of Debt Into Equity [Member]
Debt Instrument [Line Items]
Debt instrument conversion price per share | $ / shares			$ 0.70
Debt instrument convertible threshold percentage of stock price trigger			100.00%
Volume weighted average share price triggering conversion of debt instruments | $ / shares			$ 1.40

Unsecured Convertible Debentu_3

Unsecured Convertible Debentures - Summary of Unsecured Convertible Debentures (Detail) - Unsecured Convertible Debentures [Member]	9 Months Ended	12 Months Ended
	Sep. 30, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2020CAD ($)	Dec. 31, 2019CAD ($)
Debt Instrument [Line Items]
Beginning balance	$ 1,825,389	$ 585,267
Issued		693,784	$ 950,000	$ 500,000
Interest accrued	23,660	147,304
Fair value loss	3,914,931	189,708
Fair value loss due to own credit risk		154,347
Foreign currency translation adjustment	5,495	54,979
Conversion to common shares	$ (5,769,475)
Ending balance		$ 1,825,389

Unsecured Convertible Debentu_4

Unsecured Convertible Debentures - Additional Information (Detail)	Mar. 03, 2021USD ($)	Feb. 16, 2021USD ($)shares	Dec. 10, 2019CAD ($)	Sep. 30, 2021d$ / shares	Dec. 31, 2020USD ($)	Dec. 31, 2020CAD ($)	Dec. 31, 2019CAD ($)	Feb. 16, 2021$ / shares
Debt Instrument [Line Items]
Other comprehensive income loss financial liability fair value option unrealized gain loss arising during period after tax		$ 3,914,931
Fair value option changes in fair value gain loss recognized in the income statement	$ 16,408,482
Unsecured Convertible Debentures [Member]
Debt Instrument [Line Items]
Proceeds from issuance of unsecured debenture					$ 693,784	$ 950,000	$ 500,000
Debt instrument fixed rate				1.00%
Maturity date				Apr. 30, 2025
Debt instrument conversion price | $ / shares				$ 0.70				$ 0.70
Debt instrument convertible threshold percentage of stock price trigger				80.00%
Thershold trading days | d				10
Debt Conversion, principal and accrued interest of Unsecured Debentures		$ 1,439,103	$ 250,000
Debt conversion, common shares issued | shares		5,105,338
Accumulated losses		$ 154,347
Financial instruments fair value option total unrealized gain loss instrument specific credit risk					344,055
Other comprehensive income loss financial liability fair value option unrealized gain loss arising during period after tax					154,347
Fair value option changes in fair value gain loss recognized in the income statement					$ 189,708
Stock issued during the period conversion of convertible securities net of adjustments		$ 5,769,475

Long-Term Debt - Summary of Lon

Long-Term Debt - Summary of Long Team Debt (Detail) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term Debt	$ 3,230,861	$ 3,034,048
Long-term Debt, Current Maturities	532,346	290,544
Long-term Debt, Excluding Current Maturities	2,698,515	2,743,504
ACOA Business Development Program ("BDP") 2012 [Member]
Debt Instrument [Line Items]
Long-term Debt	92,606	129,384
ACOA Atlantic Innovation Fund ("AIF") 2015 [Member]
Debt Instrument [Line Items]
Long-term Debt	1,649,461	1,458,954
ACOA BDP 2018 [Member]
Debt Instrument [Line Items]
Long-term Debt	1,336,370	1,285,307
ACOA BDP 2019 [Member]
Debt Instrument [Line Items]
Long-term Debt	42,888	30,138
ACOA Regional Relief and Recovery Fund ("RRRF") 2020 [Member]
Debt Instrument [Line Items]
Long-term Debt	109,536	0
CAIXA Capital loan [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 0	$ 130,265

Long-Term Debt - Summary of L_2

Long-Term Debt - Summary of Long Team Debt (Parenthetical) (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2021USD ($)$ / shares	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)$ / sharesshares	Sep. 30, 2021CAD ($)shares	Sep. 30, 2021EUR (€)shares	Sep. 30, 2020USD ($)	Sep. 30, 2020CAD ($)	Sep. 30, 2021CAD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2020CAD ($)
Debt Instrument [Line Items]
Revenues	$ 572,612	$ 198,175	$ 1,793,235			$ 848,858
ACOA Business Development Program ("BDP") 2012 [Member]
Debt Instrument [Line Items]
Long term debt maturity date	Jun. 1, 2023		Jun. 1, 2023					Jun. 1, 2023
Debt annual principal repayments commencement date			Oct. 1, 2015	Oct. 1, 2015	Oct. 1, 2015
Maximum contribution								$ 500,000
Principal periodic payment				$ 5,952
Frequency of payment			monthly	monthly	monthly
Amount drawn down								125,000		$ 178,571
ACOA Atlantic Innovation Fund ("AIF") 2015 [Member]
Debt Instrument [Line Items]
Debt annual principal repayments commencement date			Jun. 1, 2021	Jun. 1, 2021	Jun. 1, 2021
Maximum contribution								3,000,000
Frequency of payment			Annual	Annual	Annual
Long Term debt cumulative drawdown amount								$ 3,000,000		3,000,000
ACOA Atlantic Innovation Fund ("AIF") 2015 [Member] | Gross Revenues Are Less Than Canadian Dollar 1,000,000 [Member]
Debt Instrument [Line Items]
Percentage of annual principal repayments			0.00%	0.00%	0.00%
ACOA Atlantic Innovation Fund ("AIF") 2015 [Member] | Gross Revenues Are Less Than Canadian Dollar 1,000,000 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Revenues							$ 1,000,000
ACOA Atlantic Innovation Fund ("AIF") 2015 [Member] | Gross Revenues Are Less Than Canadian Dollar 10,000,000 And Greater Than Canadian Dollar 1,000,000 [Member]
Debt Instrument [Line Items]
Percentage of annual principal repayments						5.00%	5.00%
Revenues							$ 10,000,000
ACOA Atlantic Innovation Fund ("AIF") 2015 [Member] | Gross Revenues Are Less Than Canadian Dollar 10,000,000 And Greater Than Canadian Dollar 1,000,000 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Revenues							10,000,000
ACOA Atlantic Innovation Fund ("AIF") 2015 [Member] | Gross Revenue Are Greater Than Canadian Dollar 10,000,000 [Member]
Debt Instrument [Line Items]
Principal periodic payment							$ 500,000
Percentage of variable annual principal repayment						1.00%	1.00%
Revenues							$ 1,000,000
ACOA BDP 2018 [Member]
Debt Instrument [Line Items]
Long term debt maturity date	May 1, 2029		May 1, 2029					May 1, 2029
Debt annual principal repayments commencement date			Jun. 1, 2021	Jun. 1, 2021	Jun. 1, 2021
Maximum contribution								$ 3,000,000
Principal periodic payment				$ 31,250
Frequency of payment			monthly	monthly	monthly
Deferred government assistance	$ 425,872		$ 425,872
Amortization of deferred government assistance			$ 107,538			$ 100,968
Long Term debt cumulative drawdown amount								$ 2,875,000		3,000,000
ACOA BDP 2019 [Member]
Debt Instrument [Line Items]
Long term debt maturity date	May 1, 2027		May 1, 2027					May 1, 2027
Debt annual principal repayments commencement date			Jun. 1, 2021	Jun. 1, 2021	Jun. 1, 2021
Maximum contribution								$ 100,000
Principal periodic payment				$ 1,400
Frequency of payment			monthly	monthly	monthly
Amount drawn down								$ 94,444		$ 62,165
ACOA Regional Relief and Recovery Fund ("RRRF") 2020 [Member]
Debt Instrument [Line Items]
Long term debt maturity date	Apr. 1, 2026		Apr. 1, 2026					Apr. 1, 2026
Debt annual principal repayments commencement date			Apr. 1, 2023	Apr. 1, 2023	Apr. 1, 2023
Maximum contribution								$ 390,000
Principal periodic payment				$ 11,000
Frequency of payment			monthly	monthly	monthly
Amount drawn down								$ 390,000	$ 0
CAIXA Capital loan [Member]
Debt Instrument [Line Items]
Long term debt maturity date	Jan. 15, 2025		Jan. 15, 2025					Jan. 15, 2025
Base rate			4.00%	4.00%	4.00%
Debt Conversion, principal and accrued interest oustanding			$ 209,506		€ 171,080
Conversion price | $ / shares	$ 3.87		$ 3.87
Debt conversion, common shares issued | shares			67,597	67,597	67,597
Debt conversion fair value settlement			$ 88,763
Amount of debt instrument converted			$ 221,842

Capital Stock - Additional Info

Capital Stock - Additional Information (Detail)

Jun. 28, 2021USD ($)shares

Jun. 25, 2021shares

Mar. 05, 2020$ / sharesshares

Sep. 30, 2021USD ($)$ / sharesshares

Jun. 30, 2021USD ($)

Sep. 30, 2020USD ($)shares

Jun. 30, 2021USD ($)

Sep. 30, 2021USD ($)$ / sharesshares

Sep. 30, 2020USD ($)shares

Dec. 31, 2020USD ($)$ / sharesshares

Jun. 28, 2021$ / shares

Mar. 05, 2020$ / sharesshares

Class of Stock [Line Items]

Common stock, shares authorized | shares

1,000,000,000

1,000,000,000

1,000,000,000

Common stock, shares par value | $ / shares

$ 0.001

$ 0.001

$ 0

Stock issued during period value, conversion of commercial paper

[1]

$ 23,656,365

$ 3,939,447

Stock issued during period value, conversion of secured convertible debentures

[1]

22,118,782

Stock issued during period value, conversion of unsecured convertible debentures

[1]

5,769,475

Gain loss on common shares and liabilities carrying value differences

$ 19,330

Class of warrants or rights, conversion basis

1.845

Term of warrants

5 years

5 years

Issuance of warrants

$ 701,910

$ 701,910

149,994

[1]

General & Administrative

$ 9,776,850

3,847,278

$ 1,463,255

6,440,162

$ 16,217,012

4,620,907

Net loss

11,425,248

[1]

5,883,303

$ 2,581,204

[1]

50,041,822

61,467,070

[1]

5,815,233

[1]

Additional paid-in capital

$ 459,129,666

454,961,102

454,961,102

$ 459,129,666

$ 29,021,974

Error Correction, Previously Immaterial [true false]

true

true

Previously Reported [Member]

Class of Stock [Line Items]

General & Administrative

3,145,368

5,738,252

Net loss

(5,181,393)

(49,339,912)

Additional paid-in capital

$ 454,259,192

$ 454,259,192

Black-Scholes Option Pricing Model [Member] | General & Administrative

Class of Stock [Line Items]

Estimated fair value of warrants

$ 3,129,208

$ 3,129,208

Service Provider [Member]

Class of Stock [Line Items]

Prepaid expenses

$ 500,000

$ 500,000

Torchlight [Member]

Class of Stock [Line Items]

Common stock, coversion ratio

0.5

Business combination equity interest issued or issuable fair value

$ 357,289,644

Business combination equity interest issued or issuable number of shares | shares

44,885,634

Broker Warrants [Member]

Class of Stock [Line Items]

Issued warrants | shares

97,542

0.62 CAD [Member]

Class of Stock [Line Items]

Warrants, exercise price | $ / shares

$ 0.34

Meta [Member] | Torchlight [Member]

Class of Stock [Line Items]

Stock shares issued during the period shares due to differences in fair value | shares

286,292

Business acquisition share price due to difference in fair value | $ / shares

$ 0.58

$ 0.58

Payment made towards fair value adjustment

$ 90,000

Business acquisition consideration payable fair value adjustment

$ 90,000

$ 90,000

Business combination equity interest issued or issuable number of shares | shares

196,968,803

Prior to Completion of the CPM RTO [Member]

Class of Stock [Line Items]

Common stock, conversion basis

every two warrants had the right to purchase one MTI common share

Factor to be considered for the issuance of warrants

2

Prior to Completion of the CPM RTO [Member] | CPM Conversion Ratio [Member]

Class of Stock [Line Items]

Common stock, coversion ratio

2.75

Warrant conversion ratio

2.75

Prior to Completion of the CPM RTO [Member] | Torch Light Conversion Ratio [Member]

Class of Stock [Line Items]

Common stock, coversion ratio

1.845

Warrant conversion ratio

1.845

Prior to Completion of the CPM RTO [Member] | Broker Warrants [Member]

Class of Stock [Line Items]

Common stock, conversion basis

every MTI broker warrant had the right to purchase one MTI common share

Prior to Completion of the CPM RTO [Member] | Broker Warrants [Member] | CPM Conversion Ratio [Member]

Class of Stock [Line Items]

Warrant conversion ratio

2.75

Prior to Completion of the CPM RTO [Member] | Broker Warrants [Member] | Torch Light Conversion Ratio [Member]

Class of Stock [Line Items]

Warrant conversion ratio

1.845

Prior to Completion of the CPM RTO [Member] | Common Stock Shares Issued Pre CPM RTO [Member] | Torch Light Conversion Ratio [Member]

Class of Stock [Line Items]

Common stock, coversion ratio

1.845

Pursuant to Completion of the RTO [Member]

Class of Stock [Line Items]

Common stock, conversion basis

one warrant has the right to purchase one MMI Common Share

Pursuant to Completion of the RTO [Member] | Broker Warrants [Member]

Class of Stock [Line Items]

Class of warrants or rights, conversion basis

1.845

Warrants, exercise price | $ / shares

$ 0.62

Torchlight RTO [Member] | Torchlight [Member]

Class of Stock [Line Items]

Class of warrants or rights outstanding shares | shares

853,278

Torchlight RTO [Member] | Meta [Member]

Class of Stock [Line Items]

Warrants, conversion basis

1.845

Post Completion Of CPM RTO [Member] | Torch Light Conversion Ratio [Member]

Class of Stock [Line Items]

Common stock, coversion ratio

1.845

Post Completion Of CPM RTO [Member] | Common Stock Shares Issued Pre CPM RTO [Member]

Class of Stock [Line Items]

Factor considered for common stock issuance

0.001

Post Completion Of CPM RTO [Member] | Common Stock Shares Issued Post CPM RTO [Member]

Class of Stock [Line Items]

Factor considered for common stock issuance

0.001

Post Completion Of CPM RTO [Member] | Common Stock Shares Issued Post CPM RTO [Member] | Torch Light Conversion Ratio [Member]

Class of Stock [Line Items]

Common stock, coversion ratio

1.845

Deemed Issue [Member] | Meta [Member] | Torchlight [Member]

Class of Stock [Line Items]

Business combination equity interest issued or issuable fair value

$ 369,631,002

$ 369,631,002

Business combination equity interest issued or issuable number of shares | shares

82,813,994

Common Stock [Member]

Class of Stock [Line Items]

Stock issued during period value, conversion of commercial paper

[1]

$ 20,391

$ 17,752

Stock issued during period value, conversion of secured convertible debentures

[1]

14,156

Stock issued during period value, conversion of unsecured convertible debentures

[1]

5,105

Conversion of long-term debt

133,080

Long-term debt due to related party

$ 295,419

Common Stock [Member] | Service Provider [Member]

Class of Stock [Line Items]

Common stock issued to service provider | shares

148,368

Share price | $ / shares

$ 3.37

$ 3.37

Common Stock [Member] | Unsecured Convertible Promissory Notes [Member]

Class of Stock [Line Items]

Stock issued during period value, conversion of commercial paper

$ 23,656,365

Common Stock [Member] | Secured Convertible Debentures [Member]

Class of Stock [Line Items]

Stock issued during period value, conversion of secured convertible debentures

22,118,782

Common Stock [Member] | Unsecured Convertible Debentures [Member]

Class of Stock [Line Items]

Stock issued during period value, conversion of unsecured convertible debentures

5,769,475

Common Stock [Member] | Unsecured Convertible Promissory Note Secured Convertible Debentures And Unsecured Convertible Debentures [Member]

Class of Stock [Line Items]

Stock issued during period value, conversion of secured convertible debentures

39,652

Unrealized gain loss on conversion of financial liabilities into equity

39,486,830

Common Stock [Member] | Long Term Debt And Due To Related Party [Member]

Class of Stock [Line Items]

Stock issued during period value, conversion of secured convertible debentures

$ 276

Common Stock [Member] | Prior to Completion of the CPM RTO [Member]

Class of Stock [Line Items]

Number of securities called by warrant | shares

1

1

Common Stock [Member] | Prior to Completion of the CPM RTO [Member] | Broker Warrants [Member]

Class of Stock [Line Items]

Number of securities called by one warrant | shares

1

1

Common Stock [Member] | Prior to Completion of the CPM RTO [Member] | Share Price for Conversion [Member]

Class of Stock [Line Items]

Share price | $ / shares

$ 2.475

Common Stock [Member] | Prior to Completion of the CPM RTO [Member] | Share Price for Conversion [Member] | Broker Warrants [Member]

Class of Stock [Line Items]

Share price | $ / shares

$ 1.70

Common Stock [Member] | Pursuant to Completion of the RTO [Member]

Class of Stock [Line Items]

Number of securities called by warrant | shares

1

1

Common Stock [Member] | Pursuant to Completion of the RTO [Member] | Share Price for Conversion [Member]

Class of Stock [Line Items]

Share price | $ / shares

$ 0.90

Warrant [Member]

Class of Stock [Line Items]

Issued warrants | shares

1,153,500

0

2,153,500

1,455,864

1,455,864

Class of warrants or rights outstanding shares | shares

426,639

Warrant [Member] | Black-Scholes Option Pricing Model [Member]

Class of Stock [Line Items]

Issued warrants | shares

1,153,500

Warrant [Member] | Monte Carlo Simulation [Member]

Class of Stock [Line Items]

Issued warrants | shares

1,000,000

Warrant [Member] | Monte Carlo Simulation [Member] | General & Administrative

Class of Stock [Line Items]

Estimated fair value of warrants

$ 701,910

$ 701,910

Warrant [Member] | Torchlight RTO [Member]

Class of Stock [Line Items]

Warrants, exercise price | $ / shares

$ 0.49

Additional Paid-in Capital [Member]

Class of Stock [Line Items]

Stock issued during period value, conversion of commercial paper

[1]

23,635,974

$ 3,921,695

Stock issued during period value, conversion of secured convertible debentures

[1]

22,104,626

Stock issued during period value, conversion of unsecured convertible debentures

[1]

5,764,370

Class of warrants or rights outstanding

$ 2,943,370

Issuance of warrants

[1]

$ 149,994

Additional Paid-in Capital [Member] | Unsecured Convertible Promissory Note Secured Convertible Debentures And Unsecured Convertible Debentures [Member]

Class of Stock [Line Items]

Stock issued during period value, conversion of secured convertible debentures

51,504,970

Additional Paid-in Capital [Member] | Long Term Debt And Due To Related Party [Member]

Class of Stock [Line Items]

Stock issued during period value, conversion of secured convertible debentures

$ 447,553

[1]

Retroactively restated from the earliest period presented for the Torchlight RTO (“Reverse acquisition”) and CPM RTO (“Reverse Recapitalization”) as described in Note 3

Capital Stock - Summary of Chan

Capital Stock - Summary of Changes in Warrant (Detail) - Warrant [Member] - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Class of Warrant or Right [Line Items]
Balance, beginning of period, shares			3,046,730	1,590,866	1,590,866
Balance, beginning of period			$ 402,883	$ 132,299	$ 132,299
Issued, shares	1,153,500	0	2,153,500	1,455,864	1,455,864
Issued			$ 3,831,124		$ 166,916
Adjustment to 2019 warrants					$ 103,668
Exercised, shares			(291,036)
Exercised			$ (41,242)
Fair value of deemed issuance to Torchlight, shares			426,639
Fair value of deemed issuance to Torchlight			$ 2,943,370
Balance, end of period, shares	5,335,833		5,335,833		3,046,730
Balance, end of period	$ 7,136,135		$ 7,136,135		$ 402,883

Capital Stock - Summary of Ch_2

Capital Stock - Summary of Changes in Broken Warrant (Detail) - Broker Warrants [Member] - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Class of Warrant or Right [Line Items]
Balance, beginning of period, shares	97,542	0
Balance, beginning of period	$ 16,144	$ 0
Issued, shares		97,542
Issued		$ 16,144
Exercised, shares	(61,331)
Exercised	$ (10,892)
Balance, end of period, shares	36,211	97,542
Balance, end of period	$ 5,252	$ 16,144

Capital Stock - Summary of Blac

Capital Stock - Summary of Black-Scholes Option Pricing Model (Detail)	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expected term of warrants	5 years
Black-Scholes Option Pricing Model [Member] | Expected volatility [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants and rights outstanding, measurement input	0.92	1.34
Black-Scholes Option Pricing Model [Member] | Expected dividend yield [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants and rights outstanding, measurement input	0	0
Black-Scholes Option Pricing Model [Member] | Common stock price [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants and rights outstanding, measurement input	0	0
Black-Scholes Option Pricing Model [Member] | Common share price [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants and rights outstanding, measurement input	5.31	1.70
Black-Scholes Option Pricing Model [Member] | Expected term of warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expected term of warrants		2 years
Black-Scholes Option Pricing Model [Member] | Minimum [Member] | Risk free interest rate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants and rights outstanding, measurement input	0.0045	0.0080
Black-Scholes Option Pricing Model [Member] | Minimum [Member] | Exercise price per common stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants and rights outstanding, measurement input	0.85	1.70
Black-Scholes Option Pricing Model [Member] | Minimum [Member] | Expected term of warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expected term of warrants	2 years 2 months 12 days
Black-Scholes Option Pricing Model [Member] | Maximum [Member] | Risk free interest rate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants and rights outstanding, measurement input	0.0098	0.0143
Black-Scholes Option Pricing Model [Member] | Maximum [Member] | Exercise price per common stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants and rights outstanding, measurement input	4.50	2.475
Black-Scholes Option Pricing Model [Member] | Maximum [Member] | Expected term of warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expected term of warrants	5 years

Capital Stock - Summary of Mont

Capital Stock - Summary of Monte Carlo Simulation (Detail)	Sep. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expected term of warrants	5 years
Monte Carlo Simulation [Member] | Risk free interest rate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants and rights outstanding, measurement input	0.42
Monte Carlo Simulation [Member] | Expected term of warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expected term of warrants	5 years
Monte Carlo Simulation [Member] | Weighted Average [Member] | Expected volatility [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants and rights outstanding, measurement input	80

Share-Based Payments - Addition

Share-Based Payments - Additional Information (Detail)	Jun. 28, 2021	Mar. 05, 2020	Sep. 30, 2021USD ($)$ / sharesshares	Dec. 31, 2020$ / sharesshares
Shares granted during period				13,402,080
Share based payment options, forfeited			65,201	2,627,510
Share based payment options, expired				2,090,866
Equity interest in business combination fair value disclosure | $			$ 436,214,719
Torchlight [Member]
Reverse stock split ratio			0.5
Torchlight [Member] | Before Stock Split [Member]
Share based compensation by share based payment arrangement non vested options outstanding			3,000,000
Torchlight [Member] | After Stock Split [Member]
Share based compensation by share based payment arrangement non vested options outstanding			1,500,000
Pursuant To The CPM RTO [Member] | Torch Light Conversion Ratio [Member]
Share based payment award conversion ratio			1.845
As Part Of RTO [Member]
Stock issued during period shares under ESOP			1,291,500
Prior To Completion Of The CPM RTO [Member] | CPM Conversion Ratio [Member]
Share based payment award conversion ratio			2.75
Reverse stock split ratio			2.75
Prior To Completion Of The CPM RTO [Member] | Torch Light Conversion Ratio [Member]
Share based payment award conversion ratio			1.845
Reverse stock split ratio			1.845
Additional Paid-in Capital [Member]
Equity interest in business combination fair value disclosure | $			$ 357,206,830
Additional Paid-in Capital [Member] | Torchlight [Member] | Meta [Member] | Options [Member]
Equity interest in business combination fair value disclosure | $			$ 9,397,988
Stock Options [Member]
Shares granted during period			1,500,000	13,402,080
Weighted average remaining contractual life			7 years 7 months 24 days	8 years 4 months 9 days
Weighted average grant date fair value | $ / shares			$ 6.27	$ 0.39
DSU Plan [Member] | Phantom Share Units (PSUs) [Member] | Pursuant To The CPM RTO [Member]
Share based payment award, Conversion basis		2.75
DSU Plan [Member] | Phantom Share Units (PSUs) [Member] | Torchlight RTO [Member]
Share based payment award, Conversion basis	1.845
Employee Stock Option Plan [Member]
Share based payment award, Conversion basis				2.75
Number of years determining share based payment award exercisable, Term			3 years
Share based payment award, Contractual term			10 years
Shares granted during period			13,402,080
Employee Stock Option Plan [Member] | Maximum [Member]
Share based payment, vesting period			4 years
Employee Stock Option Plan [Member] | Minimum [Member]
Share based payment, vesting period			1 year
Employee Stock Option Plan [Member] | Vested Upon Grant [Member]
Number of shares vested			898,515
Employee Stock Option Plan [Member] | Vested Over One To Four Years [Member]
Number of shares vested			12,503,565
Employee Stock Option Plan [Member] | Cash Settlement Under Stock Option Plan [Member]
Payments to employee | $			$ 0
Employee Stock Option Plan [Member] | Exercisable On The First Anniversary [Member]
Share based payment award, Vesting rights percentage			25.00%
Employee Stock Option Plan [Member] | Exercisable In Equal Monthly Installments Over Three Year Period Commencing Immediately After First Anniversary [Member]
Share based payment award, Vesting rights percentage			75.00%
Employee Stock Option Plan [Member] | Completion Of RTO [Member]
Share based payment options, forfeited			2,589,457
Share based payment options, expired			2,090,866

Share-Based Payments - Summary

Share-Based Payments - Summary of Change in Outstanding Share DSU (Detail) - DSU Plan [Member] - shares	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Schedule Of Equity Instruments Other Than Options DSU Shares Outstanding Roll Forward [Line Items]
Outstanding, beginning of period	3,455,224	3,977,820
Converted in to common stock	0	(522,596)
Outstanding, end of period	3,455,224	3,455,224

Share-Based Payments - Summar_2

Share-Based Payments - Summary of Equity Instruments Other than Options DSU Shares Outstanding (Detail) - DSU Plan [Member] - shares	Sep. 30, 2021	Dec. 31, 2020
Schedule Of Equity Instruments Other Than Options DSU Shares Outstanding [Line Items]
Number of units	3,455,224	3,455,224
Issue Price CA$0.27 [Member]
Schedule Of Equity Instruments Other Than Options DSU Shares Outstanding [Line Items]
Number of units	3,348,675	3,348,675
Issue Price CA$0.51 [Member]
Schedule Of Equity Instruments Other Than Options DSU Shares Outstanding [Line Items]
Number of units	106,549	106,549

Share-Based Payments - Summar_3

Share-Based Payments - Summary of Equity Instruments Other than Options DSU Shares Outstanding (Parenthetical) (Detail) - DSU Plan [Member] - $ / shares	Sep. 30, 2021	Dec. 31, 2020
Issue Price CA$0.27 [Member]
Schedule Of Equity Instruments Other Than Options DSU Shares Outstanding [Line Items]
Shares issued, price per share	$ 0.27	$ 0.27
Issue Price CA$0.51 [Member]
Schedule Of Equity Instruments Other Than Options DSU Shares Outstanding [Line Items]
Shares issued, price per share	$ 0.51	$ 0.51

Share-Based Payments - Summar_4

Share-Based Payments - Summary of Stock-Based Compensation Expenses (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 200,776	$ 394,867	$ 844,559	$ 1,044,463
Selling & Marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	5,976	15,616	26,935	53,267
General & Administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	93,453	266,338	434,135	729,688
Research & Development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 101,347	$ 112,913	$ 383,489	$ 261,508

Share-Based Payments - Summar_5

Share-Based Payments - Summary of Change in Share Outstanding Options (Detail)	9 Months Ended	12 Months Ended
	Sep. 30, 2021$ / sharesshares	Dec. 31, 2020$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, beginning of period | $ / shares	$ 0.33	$ 0.33
Issued to CPM executives and directors pursuant to CPM RTO | $ / shares		0.19
Granted | $ / shares		0.34
Exercised | $ / shares	0.34
Forfeitures | $ / shares	0.34	0.34
Expired | $ / shares		0.27
Fair value of deemed issuance to Torchlight | $ / shares	1.75
Outstanding, end of period | $ / shares	$ 0.44	$ 0.33
Outstanding, beginning of period | shares	24,477,507	14,502,303
Issued to CPM executives and directors pursuant to CPM RTO | shares		1,291,500
Granted | shares		13,402,080
Exercised | shares	(1,340,292)
Forfeitures | shares	(65,201)	(2,627,510)
Expired | shares		(2,090,866)
Fair value of deemed issuance to Torchlight | shares	1,500,000
Outstanding, end of period | shares	24,572,014	24,477,507

Share-Based Payments - Summar_6

Share-Based Payments - Summary of Stock Options Outstanding (Detail) - shares	Sep. 30, 2021	Dec. 31, 2020
Schedule of Stock Options Outstanding [Line Items]
Number outstanding	24,572,014	24,477,507
Number exercisable	15,328,581	10,563,871
CA$0.15 [Member]
Schedule of Stock Options Outstanding [Line Items]
Number outstanding	558,112	558,113
Number exercisable	558,113	558,113
CA$0.19 [Member]
Schedule of Stock Options Outstanding [Line Items]
Number outstanding	369,000	369,000
Number exercisable	369,000	369,000
CA$0.34 [Member]
Schedule of Stock Options Outstanding [Line Items]
Number outstanding	22,194,902	23,550,394
Number exercisable	12,951,468	9,636,758
US$2 [Member]
Schedule of Stock Options Outstanding [Line Items]
Number outstanding	1,125,000
Number exercisable	1,125,000
US$1 [Member]
Schedule of Stock Options Outstanding [Line Items]
Number outstanding	325,000
Number exercisable	325,000

Share-Based Payments - Summar_7

Share-Based Payments - Summary of Stock Options Outstanding (Parenthetical) (Detail) - $ / shares	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Stock Options Outstanding [Line Items]
Exercise price	$ 0.44	$ 0.33	$ 0.33
CA$0.15 [Member]
Schedule Of Stock Options Outstanding [Line Items]
Exercise price	0.15	0.15
CA$0.19 [Member]
Schedule Of Stock Options Outstanding [Line Items]
Exercise price	0.19	0.19
CA$0.34 [Member]
Schedule Of Stock Options Outstanding [Line Items]
Exercise price	0.34	$ 0.34
US$1 [Member]
Schedule Of Stock Options Outstanding [Line Items]
Exercise price	1
US$2 [Member]
Schedule Of Stock Options Outstanding [Line Items]
Exercise price	$ 2

Share-Based Payments - Summar_8

Share-Based Payments - Summary of fair value grant using weighted-average assumptions (Detail)	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Schedule Of Share Based Payment Award Stock Options Valuation Assumptions [Line Items]
Volatility	84.00%
Expected volatility for options,minimum		52.00%
Expected volatility for options,maximum		134.00%
Risk-free interest rate	0.73%	0.73%
Expected term (in years)	1 year	7 years 5 months 23 days

Income Taxes - Summary Of Defer

Income Taxes - Summary Of Deferred Tax Expense Benefit (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Deferred tax recovery	$ 83,657	$ 33,304	$ 186,183	$ 87,651

Net loss per share - Summary Ba

Net loss per share - Summary Basic and Diluted Net Loss Per Share (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator:
Net loss	$ (11,425,248)	$ (2,581,204)	$ (61,467,070)	$ (5,815,233)
Denominator:
Weighted-average shares, basic	280,080,786	155,913,202	216,135,190	131,557,607
Weighted-average shares, diluted	280,080,786	155,913,202	216,135,190	131,557,607
Net loss per share
Basic	$ (0.04)	$ (0.02)	$ (0.28)	$ (0.04)
Diluted	$ (0.04)	$ (0.02)	$ (0.28)	$ (0.04)

Net loss per share - Summary of

Net loss per share - Summary of Antidilutive Securities Excluded from Computation of Earnings Per Share (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	33,399,282	36,908,270	33,399,282	36,908,270
Convertible Debt Securities [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		10,423,477		10,423,477
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	24,572,014	19,885,297	24,572,014	19,885,297
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	5,372,044	3,144,272	5,372,044	3,144,272
Deferred Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3,455,224	3,455,224	3,455,224	3,455,224

Additional Cash Flow Informat_3

Additional Cash Flow Information - Summary of Cash Flow, Operating Capital (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Increase (Decrease) in Operating Capital [Abstract]
Grants receivable	$ 38,544	$ (185,606)
Inventory	103,831	(129,407)
Other receivables	(73,436)	25,583
Prepaid expenses	(1,342,530)	(73,946)
Other current assets	(598,307)	118,626
Trade payables	(258,128)	(1,302,225)
Due from (to) related party	(24,889)	(9,349)
Operating lease Right-of-use Asset	408,430
Operating lease liabilities	(18,382)
Total	$ (1,764,867)	$ (1,556,324)

Fair value measurements - Summa

Fair value measurements - Summary of Fair Value of Financial Instruments (Detail) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Funding obligation	$ 868,169	$ 776,884
Operating lease liabilities	2,753,990	270,581
Long-term debt	3,230,861	3,034,048
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Funding obligation	617,264	571,839
Operating lease liabilities	1,605,511	270,641
Long-term debt	$ 2,404,297	$ 2,734,931

Revenue - Summary of Revenue Di

Revenue - Summary of Revenue Disaggregated (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 572,612	$ 198,175	$ 1,793,235	$ 848,858
Product sales [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	297,431	982	321,431	2,904
Contract revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	275,181	158,096	1,229,648	464,234
Other development revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		39,097	242,156	381,720
Development revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 275,181	$ 197,193	$ 1,471,804	$ 845,954

Deferred Revenue - Summary of D

Deferred Revenue - Summary of Deferred Revenue (Detail) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Deferred Revenue Arrangement [Line Items]
Deferred Revenue	$ 1,824,444	$ 2,044,070
Less current portion	1,186,885	1,239,927
Deferred Revenue, Noncurrent	637,559	804,143
Covestro - Cooperation Framework [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue	272,288
Satair A/S-Exclusive Rights [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue	739,568	815,310
Satair A/S-Advance Against PO [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue	488,502	488,847
LM Aero-MetaSOLAR Commercialization [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue	230,600	646,135
US Deferred Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue	75,000	75,000
Innovate UK-R&D Tax Credit [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue	$ 18,486	$ 18,778

(Loss) Gain on financial inst_3

(Loss) Gain on financial instruments, net - Summary of (Loss) Gain on Financial Instruments, Net (Detail) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Loss on secured convertible promissory notes			$ (5,235)
Gain (Loss) on secured convertible debentures	$ (96,931)	$ (16,957,029)	685,792
Gain (Loss) on unsecured convertible debentures	(29,808)	(4,076,448)	478,469
Gain (Loss) on derivative instruments, net	(118,455)	(40,540,091)	1,167,310
Bridge Loan [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on unsecured convertible promissory notes		(19,163,417)
Torchlight Notes [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on unsecured convertible promissory notes	$ 8,284	$ (343,197)	$ 8,284

Leases - Summary of Operating L

Leases - Summary of Operating Lease Expense (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Lease, Cost [Abstract]
Operating lease expense	$ 196,547	$ 69,455	$ 515,084	$ 207,808

Leases - Summary of Future Mini

Leases - Summary of Future Minimum Payments Under Non-cancelable Operating Lease Obligations (Detail) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Remainder of 2021	$ 170,660
2022	766,674
2023	760,951
2024	741,064
2025	764,748
Thereafter	1,935,263
Total minimum lease payments	5,139,360
Less: interest	(2,385,370)
Present value of net minimum lease payments	2,753,990
Less: current portion of lease liabilities	(330,867)	$ (150,802)
Total long-term lease liabilities	$ 2,423,123	$ 119,779

Leases - Additional Information

Leases - Additional Information (Detail)	Sep. 17, 2021ft²	Sep. 16, 2021ft²	Jun. 09, 2021CAD ($)ft²$ / sharesshares	Sep. 30, 2021CAD ($)	Sep. 30, 2021USD ($)ft²	Jan. 01, 2021ft²	Aug. 31, 2020CAD ($)
Lease, term of contract							10 years
Land under lease | ft²		19,506				53,000
Operating lease, right-of-use asset					$ 1,021,499
Operating lease liability					$ 2,753,990
Additional land under lease | ft²		8,904
Area of Land | ft²					5,475
Lease expiry date		Sep. 1, 2024
Lease extended expiry date		Sep. 30, 2026
Lease commencement date		Oct. 1, 2021
Leasehold Improvements [Member]
Property subject to or available for lease							$ 500,000
Lease Amendment [Member]
Lease, term of contract			10 years
Lease Amendment [Member] | Expanded Area [Member]
Land under lease | ft²			15,000
Cash Received To Fund Ongoing Tenant Improvements [Member]
Operating lease liability			$ 500,000
Stock Issued In Exchange For Tenant Improvements Received [Member]
Stock issued during period, shares | shares			993,490
Shares issued, price per share | $ / shares			$ 3.40
Monthly Payment [Member]
Rent expenses				$ 28,708
Monthly Payment [Member] | Payment For Proportionate Share Of Operating Costs And Property Taxes [Member]
Rent expenses				$ 24,910
Boxer Property Management Corp [Member]
Lease, term of contract	2 years
Land under lease | ft²	4,414
Operating lease, right-of-use asset					$ 132,780
Operating lease liability					$ 132,780
Lease commencement date	Oct. 1, 2021

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2021EUR (€)	Sep. 30, 2021EUR (€)	Jan. 29, 2021CAD ($)	Jan. 29, 2021EUR (€)	Dec. 31, 2020USD ($)	Dec. 31, 2018USD ($)
Contractual obligation	$ 868,169					$ 776,884
Cooperation Framework Agreement CFA [Member] | Letter of Credit [Member]
Line of credit facility | €			€ 225,000
Cooperation Framework Agreement CFA [Member] | Letter of Credit [Member] | Restricted Cash [Member]
Debt instrument, collateral amount				$ 1,000,000
Co Operation Agreement [Member]
Contractual obligation	4,000,000
Covestro Deutschland AG Covestro [Member] | Cooperation Framework Agreement CFA [Member] | Letter of Credit [Member]
Line of credit facility, decrease	578,204	€ 375,000
Cash transferred from restricted cash to cash and cash equivalents	578,204		€ 375,000
Toronto Dominion Bank TD [Member] | Covestro Deutschland AG Covestro [Member] | Cooperation Framework Agreement CFA [Member] | Letter of Credit [Member]
Line of credit facility, maximum borrowing capacity | €					€ 600,000
RBC [Member] | Satair [Member] | Letter of Credit [Member]
Line of credit facility, maximum borrowing capacity							$ 500,000
Line of credit facility	$ 0
Debt instrument expiry date	Oct. 5, 2021	Oct. 5, 2021

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - CAD ($) $ / shares in Units, $ in Millions	Oct. 05, 2021	Oct. 01, 2021	Aug. 05, 2021	Sep. 30, 2021
Subsequent Event [Line Items]
Exercise of stock options, Shares				1,340,292
Nanotech Security Corp [Member]
Subsequent Event [Line Items]
Percentage of voting equity interests acquired			100.00%
Business acquisition share price			$ 1.25
Business combination, consideration transferred			$ 90.8
Business acquisition effective date			Oct. 5, 2021
Nanotech common shares [Member] | Restricted Stock Units (RSUs) [Member] | Nanotech Security Corp [Member]
Subsequent Event [Line Items]
Business acquisition share price			$ 1.25
Repurchase of restricted stock units to purchase common stock			538,516
Nanotech common shares [Member] | Money Options [Member] | Nanotech Security Corp [Member]
Subsequent Event [Line Items]
Business acquisition share price			$ 1.25
Money options to acquire shares of common stock			4,579,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Exercise of stock options, Shares		136,964
Exercise of broker warrants, Shares		22,324
Subsequent Event [Member] | Nanotech common shares [Member] | Restricted Stock Units (RSUs) [Member] | Nanotech Security Corp [Member]
Subsequent Event [Line Items]
Repurchase of restricted stock units to purchase common stock	303,391
Subsequent Event [Member] | Nanotech common shares [Member] | Money Options [Member] | Nanotech Security Corp [Member]
Subsequent Event [Line Items]
Money options to acquire shares of common stock	4,359,000