Ur-Energy (URG) 10-K 1 Mar 19 2018 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Feb. 27, 2019	Jun. 30, 2018
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	FY
Entity Current Reporting Status	Yes
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Common Stock, Shares Outstanding		159,729,403
Entity Public Float			$ 81.2
Entity Registrant Name	UR-ENERGY INC
Entity Central Index Key	1,375,205
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 6,372,000	$ 3,879,000
Accounts receivable	31,000	33,000
Inventory	1,840,000	4,515,000
Prepaid expenses	847,000	741,000
Assets, Current, Total	9,090,000	9,168,000
Long-term inventory	12,852,000
Restricted cash	7,458,000	7,558,000
Mineral properties	45,805,000	44,677,000
Capital assets	25,158,000	26,961,000
Assets, Noncurrent, Total	91,273,000	79,196,000
Assets, Total	100,363,000	88,364,000
Current liabilities
Accounts payable and accrued liabilities	2,343,000	3,039,000
Current portion of notes payable	5,062,000	4,774,000
Environmental remediation accrual	77,000	72,000
Liabilities, Current, Total	7,482,000	7,885,000
Notes payable	9,600,000	14,662,000
Asset retirement obligations	30,384,000	27,036,000
Other liabilities - warrants	1,050,000
Liabilities, Noncurrent, Total	41,034,000	41,698,000
Liabilities	48,516,000	49,583,000
Share Capital
Common shares, without par value, unlimited shares authorized; shares issued and outstanding: 159,729,403 at December 31, 2018 and 146,531,933 at December 31, 2017	185,221,000	177,063,000
Warrants		4,109,000
Contributed surplus	19,930,000	15,454,000
Accumulated other comprehensive income	3,670,000	3,663,000
Deficit	(156,974,000)	(161,508,000)
Stockholders' Equity Attributable to Parent, Total	51,847,000	38,781,000
Liabilities and Equity, Total	100,363,000	88,364,000
Preferred Class A
Share Capital
Class A preferred shares, without par value, unlimited shares authorized; no shares issued and outstanding

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - shares	Dec. 31, 2018	Dec. 31, 2017
Common shares, Shares issued	159,729,403	146,531,933
Common shares, Shares outstanding	159,729,403	146,531,933
Preferred Class A
Class A preferred shares, shares issued	0	0
Class A preferred shares, shares outstanding	0	0

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Sales	$ 23,496	$ 38,368	$ 27,305
Cost of sales	(12,203)	(24,401)	(15,848)
Gross profit	11,293	13,967	11,457
Operating Expenses
Exploration and evaluation	(2,431)	(2,623)	(2,964)
Development	(1,654)	(4,340)	(2,886)
General and administrative	(5,393)	(5,090)	(4,740)
Accretion of asset retirement obligations	(508)	(527)	(534)
Write off of mineral properties			(62)
Income (loss) from operations	1,307	1,387	271
Net interest expense	(1,002)	(1,377)	(1,977)
Warrants mark to market adjustment	581		36
Loss on equity investment	(5)	(5)	(5)
Write-off of equity investments			(1,089)
Foreign exchange gain (loss)	43	(50)	(278)
Other income	3,610	121	15
Income (loss) before income taxes	4,534	76	(3,027)
Income tax recovery (net)			17
Net income (loss) for the period	$ 4,534	$ 76	$ (3,010)
Income (Loss) per common share:
Basic	$ 0.03	$ 0	$ (0.02)
Diluted	$ 0.03	$ 0	$ (0.02)
Weighted average number of common shares outstanding:
Basic	150,034,566	145,818,394	141,999,537
Diluted	151,598,180	147,533,966	141,999,537
COMPREHENSIVE INCOME (LOSS)
Net income (loss) for the period	$ 4,534	$ 76	$ (3,010)
Translation adjustment on foreign operations	7	59	247
Comprehensive income (loss) for the period	$ 4,541	$ 135	$ (2,763)

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Capital Stock	Warrants	Contributed Surplus [Member]	Accumulated Other Comprehensive Income	Deficit	Total
Beginning Balance at Dec. 31, 2015	$ 168,911	$ 4,175	$ 14,632	$ 3,357	$ (158,574)	$ 32,501
Beginning Balance (in shares) at Dec. 31, 2015	130,188,775
Exercise of stock options	$ 13		(4)			$ 9
Exercise of stock options (in shares)	16,620					16,620
Common shares issued for cash, net $857 of issue costs	$ 5,684					$ 5,684
Common shares issued for cash, net of issue costs (in shares)	13,085,979
Redemption of vested RSUs	$ (294)		350			56
Redemption of vested RSUs (in shares)	385,010
Expiry of warrants		(66)	66
Non-cash stock compensation			857			857
Net loss and comprehensive (loss) income				247	(3,010)	(2,763)
Ending Balance at Dec. 31, 2016	$ 174,902	4,109	15,201	3,604	(161,584)	36,232
Ending Balance (in shares) at Dec. 31, 2016	143,676,384
Exercise of stock options	$ 795		(253)			$ 542
Exercise of stock options (in shares)	871,717					871,717
Common shares issued for cash, net $857 of issue costs	$ 1,076					$ 1,076
Common shares issued for cash, net of issue costs (in shares)	1,536,169					1,536,169
Redemption of vested RSUs	$ 290		(385)			$ (95)
Redemption of vested RSUs (in shares)	447,663
Non-cash stock compensation			891			891
Net loss and comprehensive (loss) income				59	76	135
Ending Balance at Dec. 31, 2017	$ 177,063	4,109	15,454	3,663	(161,508)	$ 38,781
Ending Balance (in shares) at Dec. 31, 2017	146,531,933					146,531,933
Exercise of stock options	$ 415		(125)			$ 290
Exercise of stock options (in shares)	496,838					496,838
Common shares issued for cash, net $857 of issue costs	$ 7,399					$ 7,399
Common shares issued for cash, net of issue costs (in shares)	12,195,122
Redemption of vested RSUs	$ 344		(423)			(79)
Redemption of vested RSUs (in shares)	505,510
Expiry of warrants		$ (4,109)	4,109
Non-cash stock compensation			915			915
Net loss and comprehensive (loss) income				7	4,534	4,541
Ending Balance at Dec. 31, 2018	$ 185,221		$ 19,930	$ 3,670	$ (156,974)	$ 51,847
Ending Balance (in shares) at Dec. 31, 2018	159,729,403					159,729,403

Consolidated Statements of Sh_2

Consolidated Statements of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 29, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement Of Stockholders Equity [Abstract]
Stock issuance costs	$ 800	$ 902	$ 93	$ 884

Consolidated Statements of Cash

Consolidated Statements of Cash Flow - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash provided by (used in) Operating activities
Net income (loss) for the period	$ 4,534,000	$ 76,000	$ (3,010,000)
Items not affecting cash:
Stock based expense	915,000	891,000	857,000
Depreciation and amortization	3,603,000	4,890,000	5,144,000
Accretion of asset retirement obligation	508,000	527,000	534,000
Amortization of deferred loan costs	121,000	120,000	152,000
Provision for reclamation	5,000	(13,000)
Gain on monetization of contract	(3,540,000)
Write off of equity investments			1,089,000
Write off of mineral property			62,000
Warrants mark to market gain	(581,000)		(36,000)
Gain on disposition of assets	(2,000)	(2,000)	(14,000)
Loss (gain) on foreign exchange	45,000	53,000	280,000
Other loss	5,000	4,000	5,000
Income tax recovery			(17,000)
Change in non-cash working capital items:
Accounts receivable	2,000	(17,000)	(7,000)
Inventory	(10,177,000)	(406,000)	(765,000)
Prepaid expenses	(95,000)	109,000	(111,000)
Accounts payable and accrued liabilities	(706,000)	(606,000)	(773,000)
Net Cash Provided by (Used in) Operating Activities, Total	(5,363,000)	5,626,000	3,390,000
Investing activities
Mineral property costs	(31,000)	(18,000)
Proceeds from monetization of contract	3,540,000
Funding of equity investment	(5,000)	(5,000)	(5,000)
Proceeds from sale of property and equipment			91,000
Purchase of capital assets	(55,000)	(181,000)	(296,000)
Net Cash Provided by (Used in) Investing Activities, Total	3,449,000	(204,000)	(210,000)
Financing activities
Issuance of common shares for cash	10,000,000	1,169,000	6,568,000
Share issue costs	(902,000)	(93,000)	(884,000)
Proceeds from exercise of stock options	290,000	542,000	9,000
RSUs redeemed to pay withholding or paid in cash	(76,000)	(94,000)	(56,000)
Repayment of debt	(4,895,000)	(4,623,000)	(8,679,000)
Net Cash Provided by (Used in) Financing Activities, Total	4,417,000	(3,099,000)	(3,042,000)
Effects of foreign exchange rate changes on cash	(110,000)	5,000	(28,000)
Net change in cash, cash equivalents and restricted cash	2,393,000	2,328,000	110,000
Beginning cash, cash equivalents and restricted cash	11,437,000	9,109,000	8,999,000
Ending cash, cash equivalents and restricted cash	$ 13,830,000	$ 11,437,000	$ 9,109,000

Nature of Operations

Nature of Operations	12 Months Ended
	Dec. 31, 2018
Nature of Operations [Abstract]
Nature of operations	1. Nature of Operations Ur-Energy Inc. (the “Company”) was incorporated on March 22, 2004 under the laws of the Province of Ontario. The Company continued under the Canada Business Corporations Act on August 8, 2006. The Company is an Exploration Stage mining company, as defined by United States Securities and Exchange Commission (“SEC”) Industry Guide 7. The Company is engaged in uranium mining and recovery operations, with activities including the acquisition, exploration, development and production of uranium mineral resources located primarily in Wyoming. As of August 2013, the Company commenced uranium production at its Lost Creek Project in Wyoming. Due to the nature of the uranium mining methods used by the Company on the Lost Creek Property, and the definition of “mineral reserves” under National Instrument 43-101 (“NI 43-101”), which uses the Canadian Institute of Mining, Metallurgy and Petroleum (“CIM”) Definition Standards, the Company has not determined whether the properties contain mineral reserves. However, the Company’s “ Amended Preliminary Economic Assessment of the Lost Creek Property, Sweetwater County, Wyoming, ” as amended in non-substantive ways, February 8, 2016 (“Lost Creek PEA”) outlines the potential viability of the Lost Creek Property. The recoverability of amounts recorded for mineral properties is dependent upon the discovery of economic resources, the ability of the Company to obtain the necessary financing to develop the properties and upon attaining future profitable production from the properties or sufficient proceeds from disposition of the properties.

Liquidity Risk

Liquidity Risk	12 Months Ended
	Dec. 31, 2018
Liquidity Risk [Abstract]
Liquidity Risk	2. Liquidity Risk Our operations are based on a small number of large sales. As a result, our cash flow and therefore our current assets and working capital may vary widely during the year based on the timing of those sales. Virtually all of our sales are under contracts which specify delivery quantities, sales prices and payment dates. The only exceptions are spot sales which we are currently only making when advantageous. As a result, we are able to perform cash management functions over the course of an entire year and are less reliant on current commodity prices and market conditions. We monitor our cash projections on a weekly basis and have used various techniques to manage our cash flows including the assignment of deliveries, as we have done in the past, negotiating changes in delivery dates, purchasing inventory at favorable prices and raising capital. As at December 31, 2018, the Company’s financial liabilities consisted of trade accounts payable and accrued trade and payroll liabilities of $1.0 million which are due within normal trade terms of generally 30 to 60 days, a note payable of $15.0 million of which $5.2 million is due within 1 year, and asset retirement obligations with estimated completion dates until 2033. In addition, most of our current assets except for prepaid expenses are immediately realizable, if necessary, while our current liabilities include a substantial portion that is not due for a minimum of three months to over a year which, given the existence of our contracts and set prices, allows us to plan for those payments well in advance and address shortfalls, if any, well in advance. It is possible that additional funding might be sought. Although the Company has been successful in obtaining debt and raising equity financing in the past, there can be no guarantee that such funding will be available in the future.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2018
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	3. Basis of presentation These financial statements have been prepared by management in accordance with United States generally accepted accounting principles (“US GAAP”) and include all the assets, liabilities and expenses of the Company and its wholly-owned subsidiaries Ur-Energy USA Inc.; NFU Wyoming, LLC; Lost Creek ISR, LLC; NFUR Bootheel, LLC; Hauber Project LLC; NFUR Hauber, LLC; and Pathfinder Mines Corporation. All inter-company balances and transactions have been eliminated upon consolidation. Ur-Energy Inc. and its wholly-owned subsidiaries are collectively referred to herein as the “Company.” Exploration Stage The Company has established the existence of uranium resources for certain uranium projects, including the Lost Creek Property. The Company has not established proven or probable reserves, as defined by the SEC under Industry Guide 7, through the completion of a final or “bankable” feasibility study for any of its uranium projects, including the Lost Creek Property. Furthermore, the Company currently has no plans to establish proven or probable reserves for any of its uranium projects for which the Company plans on utilizing in situ recovery (“ISR”) mining, such as the Lost Creek Property or the Shirley Basin Project. As a result, and despite the fact that the Company commenced recovery of uranium at the Lost Creek Project in August 2013, the Company remains in the Exploration Stage as defined under Industry Guide 7, and will continue to remain in the Exploration Stage until such time proven or probable mineral reserves have been established. Since the Company commenced recovery of uranium at the Lost Creek Project without having established proven and probable reserves, any uranium resources established or extracted from the Lost Creek Project should not be in any way associated with having established proven or probable mineral reserves. Accordingly, information concerning mineral deposits set forth herein may not be comparable to information made public by companies that have reserves in accordance with United States standards. Use of estimates The preparation of consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. The most significant estimates management makes in the preparation of these consolidated financial statements relate to the fair value of stock-based compensation using the factors associated with the Black-Scholes calculations, estimation of the amount of recoverable uranium included in the in-process inventory, estimation of factors surrounding asset retirement obligations such as interest rates, discount rates and inflation rates, total cost and the time until the asset retirement commences and the offset of future income taxes through deferred tax assets. Actual results could differ from those estimates. Cash and cash equivalents Cash and cash equivalents consist of cash balances and highly liquid investments with original maturities of three months or less that are considered to be cash equivalents. Cash equivalents are held for the purpose of meeting short-term cash commitments rather than for investment or other purposes. Restricted cash is excluded from cash and cash equivalents and is included in other long-term assets Restricted cash Cash which secures various instruments including a state lease and surety bonds which secure reclamation obligations is shown as restricted cash. Inventory In-process inventory represents uranium that has been extracted from the wellfield and captured in the processing plant and is currently being transformed into a saleable product. Plant inventory is U 3 O 8 that is contained in yellowcake, which has been dried and packaged in drums, but not yet shipped to the conversion facility. The amount of U 3 O 8 in the plant inventory is determined by weighing and assaying the amount of U 3 O 8 packaged into drums at the plant. Conversion facility inventory is U 3 O 8 that has been shipped to the conversion facility. The amount of U 3 O 8 in the conversion facility inventory includes the amount of U 3 O 8 contained in drums shipped to the conversion facility plus or minus any final weighing and assay adjustments per the terms of the uranium supplier’s agreement with the conversion facility. The Company’s inventories are measured at the lower of cost or net realizable value and reflect the U 3 O 8 content in various stages of the production and sales process including in-process inventory, plant inventory and conversion facility inventory. Operating supplies are expensed when purchased. Mineral properties Acquisition costs of mineral properties are capitalized. When production is attained, amortization is calculated on a straight-line basis. The original estimated life for the Lost Creek Project was 10 years which is being used to amortize the mineral property acquisition costs. If properties are abandoned or sold, they are written off. If properties are considered to be impaired in value, the costs of the properties are written down to their estimated fair value at that time. Exploration, evaluation and development costs Exploration and evaluation expenses consist of labor, annual lease and maintenance fees and associated costs of the exploration geology department as well as exploration costs including drilling and analysis on properties which have not reached the permitting or operations stage. Development expense relates to the Company’s Lost Creek, LC East and Shirley Basin projects, which are more advanced in terms of permitting and preliminary economic assessments. Development expenses include all costs associated with exploring, delineating and permitting within those projects, the costs associated with the construction and development of permitted mine units including wells, pumps, piping, header houses, roads and other infrastructure related to the preparation of a mine unit to begin extraction operations as well as the cost of drilling and completing disposal wells. Capital assets Property, plant and equipment assets, including machinery, processing equipment, enclosures, vehicles and expenditures that extend the life of such assets, are recorded at cost including acquisition and installation costs. The enclosure costs include both the building housing and the processing equipment necessary for the extraction of uranium from impregnated water pumped in from the wellfield to the packaging of uranium yellowcake for delivery into sales. These enclosure costs are combined as the equipment and related installation associated with the equipment is an integral part of the structure itself. The costs of self-constructed assets include direct construction costs, direct overhead and allocated interest during the construction phase. Depreciation is calculated using a declining balance method for most assets with the exception of the plant enclosure and related equipment. Depreciation on the plant enclosure and related equipment is calculated on a straight-line basis. Estimated lives for depreciation purposes range from three years for computer equipment and software to 20 years for the plant enclosure and the name plate life of the related equipment. Impairment of long-lived assets The Company assesses the possibility of impairment in the net carrying value of its long-lived assets when events or circumstances indicate that the carrying amounts of the asset or asset group may not be recoverable. When potential impairment is indicated, management calculates the estimated undiscounted future net cash flows relating to the asset or asset group using estimated future prices, recoverable resources, and operating, capital and reclamation costs. When the carrying value of an asset exceeds the related undiscounted cash flows, the asset is written down to its estimated fair value, which is determined using discounted future cash flows or other measures of fair value. Asset retirement obligations For mining properties, various federal and state mining laws and regulations require the Company to reclaim the surface areas and restore groundwater quality to the pre-existing quality or class of use after the completion of mining. The Company records the fair value of an asset retirement obligation as a liability in the period in which it incurs an obligation associated with the retirement of tangible long-lived assets that result from the acquisition, construction, development and/or normal use of the assets. Asset retirement obligations consist of estimated final well closures, plant closure and removal and associated reclamation and restoration costs to be incurred by the Company in the future. The estimated fair value of the asset retirement obligation is based on the current cost escalated at an inflation rate and discounted at a credit adjusted risk-free rate. This liability is capitalized as part of the cost of the related asset and amortized over its remaining productive life. The liability accretes until the Company settles the obligation. Revenue recognition The Company adopted Topic 606 effective January 1, 2018. The Company purchases and produces U 3 O 8 and recognizes revenue at the point of transfer of control, and revenue will continue to be recognized at that point under the new standard. The adoption of the new standard had no impact on either our recognition processes or reporting. We elected the modified retrospective basis for implementing the standard. As we had no contracts that were affected by the implementation, there were no changes to prior financial reports. In addition, there is no change in our revenue recognition treatment in the current period. Our revenues are primarily derived from the sale of U 3 O 8 under either long-term (delivery in typically two to five years) or spot (immediate delivery) contracts with our customers. The contracts specify the quantity to be delivered, the price or specific calculation method of the price, payment terms and the year(s) of the delivery. There may be some variability in the dates of the delivery or the quantity to be delivered depending on the contract, but those issues are addressed before the delivery date. When a delivery is approved, the Company notifies the conversion facility with instructions for a title transfer to the customer. Revenue is recognized once a title transfer of the U 3 O 8 is confirmed by the conversion facility. We also receive a small amount of revenue from disposal fees. We have contracts with our customers which specify the type and volume of material which can be disposed. Monthly, we invoice those customers based on deliveries of material to the disposal site by the customer. Materials are measured and categorized at the time of delivery and verified by the customer. We recognize the revenue at the end of the month in which the material was received. Stock-based compensation Stock-based compensation cost from the issuance of stock options and restricted share units (“RSUs”) is measured at the grant date based on the fair value of the award and is recognized over the related service period. Stock-based compensation cost is charged to mine operations, exploration and evaluation, development, and general and administrative expense on the same basis as other compensation costs. Income taxes The Company accounts for income taxes under the asset and liability method which requires the recognition of deferred income tax assets and liabilities for the expected future tax consequences of temporary differences between the carrying amounts and tax bases of assets and liabilities. The Company provides a valuation allowance on deferred tax assets unless it is more likely than not that such assets will be realized. Earnings and loss per share calculations Diluted earnings per common share are calculated by including all options which are in-the-money based on the average stock price for the period as well as RSUs which were outstanding at the end of the quarter. The treasury stock method was applied to determine the dilutive number of options. Warrants are included only if the exercise price is less than the average stock price for the quarter. In periods of loss, the diluted loss per common share is equal to the basic loss per common share due to the anti-dilutive effect of all convertible securities. Classification of financial instruments The Company’s financial instruments consist of cash, short-term investments, accounts receivable, restricted cash, deposits, accounts payable and accrued liabilities, other liabilities and notes payable. The Company has made the following classifications for these financial instruments: · Cash, accounts receivable, restricted cash and deposits are recorded at amortized cost. Interest income is recorded using the effective interest rate method and is included in income for the period. · Accounts payable and accrued liabilities and notes payable are measured at amortized cost. · Other liabilities, which related to the derivative on the warrant issued in U.S. dollars, are adjusted to the market value using the Black-Sholes valuation method at the end of each reporting period. New accounting pronouncements which may affect future reporting In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) , which requires lessees to recognize all leases, including operating leases, unless the lease is a short-term lease. ASU 2016-02 also requires additional disclosures regarding leasing arrangements. ASU 2016-02 is effective for interim periods and fiscal years beginning after December 15, 2018, and early application is permitted. Now, the only leases we hold are for small office equipment, office space in one location and a limited number of leases on select mineral properties. The additional disclosures to reflect those leases will not have a material impact on our statement of financial position. New accounting pronouncements which were implemented this year In May 2014, the FASB issued Accounting Standards Update (“ASU”) 2014-09, “ Revenue from Contracts with Customers (Topic 606) .” The amendments in ASU 2014-09 affect any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of non-financial assets unless those contracts are within the scope of other standards ( e.g., insurance contracts or lease contracts). This ASU superseded the revenue recognition requirements in Topic 605, Revenue Recognition , and most industry-specific guidance, and creates a Topic 606, Revenue from Contracts with Customers. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of the promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The Company adopted Topic 606 effective January 1, 2018. The Company purchases and produces U 3 O 8 and recognizes revenue at the point of transfer of control; revenue will continue to be recognized at that point under the new standard. The adoption of the new standard had no impact on either our current or prior revenue recognition processes or reporting. Electing the modified retrospective basis for implementing the standard results in no changes to prior financial reports. Our revenues are primarily derived from the sale of U 3 O 8 under either long-term (delivery in typically two to five years) or spot (immediate delivery) contracts with our customers. The contracts specify the quantity to be delivered, the price or specific calculation method of the price, payment terms and the year(s) of the delivery. There may be some variability in the dates of the delivery or the quantity to be delivered depending on the contract, but those issues are addressed before the delivery date. When a delivery is approved, the Company notifies the conversion facility with instructions for a title transfer to the customer. Revenue is recognized once a title transfer of the U 3 O 8 is confirmed by the conversion facility. We also receive a small amount of revenue from disposal fees. We have contracts with our customers which specify the type and volume of material which can be disposed. Monthly, we invoice those customers based on deliveries of material to the disposal site by the customer. Materials are measured and categorized at the time of delivery and verified by the customer. We recognize the revenue at the end of the month in which the material was received. In January 2016, the FASB issued ASU 2016-1, Recognition and Measurement of Financial Assets and Financial Liabilities (Topic 825) . The amendments in this ASU supersede the guidance to classify equity securities with readily determinable fair values into different categories (that is, trading or available-for-sale) and require equity securities (including other ownership interests, such as partnerships, unincorporated joint ventures, and limited liability companies) to be measured at fair value with changes in the fair value recognized through net income. The amendments allow equity investments that do not have readily determinable fair values to be remeasured at fair value either upon the occurrence of an observable price change or upon identification of an impairment. The amendments also require enhanced disclosures about those investments. The amendments improve financial reporting by providing relevant information about an entity’s equity investments and reducing the number of items that are recognized in other comprehensive income. The Company adopted the amended Topic 825 effective January 1, 2018. The adoption of this guidance had no effect on our financial statements or other financial reporting.

Cash and Cash Equivalents

Cash and Cash Equivalents	12 Months Ended
	Dec. 31, 2018
Cash and Cash Equivalents [Abstract]
Cash and Cash Equivalents	4. Cash and cash equivalents The Company’s cash and cash equivalents consists of the following: As at December 31, 2018 December 31, 2017 $ $ Cash on deposit at banks 1,936 1,667 Money market funds 4,436 2,212 6,372 3,879

Inventory

Inventory	12 Months Ended
	Dec. 31, 2018
Inventory [Abstract]
Inventory	5. Inventory The Company’s inventory consists of the following: As at December 31, 2018 December 31, 2017 $ $ In-process inventory 160 315 Plant inventory 345 369 Conversion facility inventory 14,187 3,831 14,692 4,515 Inventory to be sold in 12 months 1,840 4,515 Long term inventory 12,852 - As of December 31, 2018, inventory was carried at the lower of cost or net realizable value. Adjustments to inventory to reflect the net realizable value are also included in Cost of Sales. For the year 2018, there was a write down of $318 thousand.

Restricted Cash

Restricted Cash	12 Months Ended
	Dec. 31, 2018
Restricted Cash [Abstract]
Restricted cash	6. Restricted Cash The Company’s restricted cash consists of the following: As at December 31, 2018 December 31, 2017 $ $ Money market account 7,458 7,458 Certificates of deposit - 100 7,458 7,558 (a) The bonding requirements for reclamation obligations on various properties have been agreed to by the Wyoming Department of Environmental Quality, Wyoming Uranium Recovery Program and United States Department of the Interior. The restricted money market accounts are pledged as collateral against performance surety bonds which are used to secure the potential costs of reclamation related to those properties. Surety bonds providing $29,880 of coverage towards specific reclamation obligations are collateralized by $7,444 of the restricted cash at December 31, 2018.

Mineral Properties

Mineral Properties	12 Months Ended
	Dec. 31, 2018
Mineral Properties [Abstract]
Mineral Properties	7. The Company’s mineral properties consist of the following: Lost Creek Pathfinder Other U.S. Property Mines Properties Total $ $ $ $ Balance, December 31, 2016 14,015 19,866 13,148 47,029 Acquisition costs - - 18 18 Change in estimated reclamation costs (note 12) 613 (165) - 448 Amortization (2,818) - - (2,818) Balance, December 31, 2017 11,810 19,701 13,166 44,677 Acquisition costs - - 31 31 Change in estimated reclamation costs (note 12) 2,577 263 - 2,840 Amortization (1,743) - - (1,743) Balance, December 31, 2018 12,644 19,964 13,197 45,805 United States Lost Creek Property The Company acquired certain Wyoming properties when Ur-Energy USA Inc. entered into the Membership Interest Purchase Agreement (“MIPA”) with New Frontiers Uranium, LLC in 2005. Under the terms of the MIPA, the Company purchased 100% of NFU Wyoming, LLC. Assets acquired in this transaction include the Lost Creek Project, other Wyoming properties and development databases. NFU Wyoming, LLC was acquired for aggregate consideration of $20 million plus interest. Since 2005, the Company has increased its holdings adjacent to the initial Lost Creek acquisition through staking additional claims and additional property purchases and leases. There is a royalty on each of the State of Wyoming sections under lease at the Lost Creek, LC West and EN Projects, as required by law. Other royalties exist on certain mining claims at the LC South, LC East and EN Projects. There are no royalties on the mining claims in the LC North or LC West Projects. In September 2013, after the Company commenced mineral extraction and production at the Lost Creek Project, it began amortizing the related mineral properties on a straight-line basis. Pathfinder Mines Corporation The Company acquired additional Wyoming properties when Ur-Energy USA Inc. closed a Share Purchase Agreement (“SPA”) with an AREVA Mining affiliate in December 2013. Under the terms of the SPA, the Company purchased Pathfinder Mines Corporation (“Pathfinder”) to acquire additional mineral properties. Assets acquired in this transaction include the Shirley Basin mine, portions of the Lucky Mc mine, machinery and equipment, vehicles, office equipment and development databases. Pathfinder was acquired for aggregate consideration of $6.7 million, a 5% production royalty under certain circumstances and the assumption of $5.7 million in estimated asset reclamation obligations. The purchase price allocation attributed $5.7 million to asset retirement obligations, $3.3 million to deferred tax liabilities, $15.3 million to mineral properties and the balance to the remaining assets and liabilities. The royalty expired on June 30, 2016. Other U.S. properties The other U.S. properties include the acquisition cost of several potential mineralized properties including the Lost Soldier Project. The Company continues to maintain those properties through claim payments, lease payments, insurance and other holding costs in anticipation of future exploration efforts. In June 2016, the Company decided to abandon its claims in the Hauber Project and wrote off $62 thousand being the carrying value of the investment in that project. Impairment testing The Company reviews the impairment indicators outlined in US GAAP guidance. As there were no impairment indicators identified, a complete analysis was not done this year on any of our properties. The Company’s accounting policy is to expense development costs including, but not limited to, production wells, header houses, piping and power as we have no proven and probable reserves.

Capital Assets

Capital Assets	12 Months Ended
	Dec. 31, 2018
Capital Assets
Capital Assets	8. Capital Assets The Company’s capital assets consist of the following: As of As of December 31, 2018 December 31, 2017 Accumulated Net Book Accumulated Net Book Cost Depreciation Value Cost Depreciation Value $ $ $ $ $ $ Rolling stock 3,432 3,290 142 3,388 3,184 204 Enclosures 32,991 8,530 24,461 32,991 6,880 26,111 Machinery and equipment 1,237 728 509 1,237 663 574 Furniture, fixtures and leasehold improvements 119 110 9 119 104 15 Information technology 1,127 1,090 37 1,120 1,063 57 38,906 13,748 25,158 38,855 11,894 26,961 Total depreciation expense was $1.9 million, $3.5 million and $3.8 million for the years ended December 31, 2018, 2017 and 2016, respectively.

Accounts Payable and Accrued Li

Accounts Payable and Accrued Liabilities	12 Months Ended
	Dec. 31, 2018
Accounts Payable and Accrued Liabilities [Abstract]
Accounts Payable and Accrued Liabilities	9. Accounts Payable and Accrued Liabilities Accounts payable and accrued liabilities consist of the following: As at December 31, 2018 December 31, 2017 $ $ Accounts payable 620 840 Payroll and other taxes 1,218 1,224 Severance and ad valorem tax payable 505 975 2,343 3,039

Notes Payable

Notes Payable	12 Months Ended
	Dec. 31, 2018
Notes Payable [Abstract]
Notes Payable	10. Notes Payable On October 15, 2013, the Sweetwater County Commissioners approved the issuance of a $34.0 million Sweetwater County, State of Wyoming, Taxable Industrial Development Revenue Bond (Lost Creek Project), Series 2013 (the “Sweetwater IDR Bond”) to the State of Wyoming, acting by and through the Wyoming State Treasurer, as purchaser. On October 23, 2013, the Sweetwater IDR Bond was issued and the proceeds were in turn loaned by Sweetwater County to Lost Creek ISR, LLC pursuant to a financing agreement dated October 23, 2013 (the “State Bond Loan”). The State Bond Loan calls for payments of interest at a fixed rate of 5.75% per annum on a quarterly basis commencing January 1, 2014. The principal is payable in 28 quarterly installments commencing January 1, 2015 and continuing through October 1, 2021. Deferred loan fees include legal fees, commissions, commitment fees and other costs associated with obtaining the various financings. Those fees amortizable within 12 months of December 31, 2018 are considered current. The following table lists the current and long-term portion of the Company’s debt instrument at December 31, 2018 and December 31, 2017: As at December 31, 2018 December 31, 2017 $ $ Current debt Sweetwater County Loan 5,183 4,895 Less deferred financing costs (121) (121) 5,062 4,774 Long term debt Sweetwater County Loan 9,813 14,996 Less deferred financing costs (213) (334) 9,600 14,662 Schedule of payments on outstanding debt as of December 31, 2018: Debt Total 2019 2020 2021 Maturity $ $ $ $ Sweetwater County Loan Principal 14,996 5,183 5,487 4,326 01-Oct-21 Interest 1,324 752 447 125 Total 16,320 5,935 5,934 4,451

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2018
Income Taxes
Income taxes	11. Income Taxes On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cut and Jobs Act (the “Tax Act”). The Tax Act makes broad and complex changes to the U.S. tax code that affects 2018. The Tax Act reduces the U.S. federal corporate tax rate from 35% to 21% for tax years beginning after December 31, 2017. In addition, the Tax Act makes certain changes to the depreciation rules and implements new limits on the deductibility of certain executive compensation. A reconciliation of income taxes at the statutory Canadian income tax rate to net income taxes included in the accompanying statements of operations is as follows: Year ended December 31, 2018 2017 2016 $ $ $ Income (loss) before income taxes 4,564 76 (3,027) Statutory rate Statutory rate 1,209 20 (804) State tax 335 - - Permanent differences (164) 91 154 True-Ups and Other 422 17,115 (110) Effect of Foreign Tax Rate Difference (379) 355 (28) Change in valuation allowance (1,423) (17,581) 771 Total - - (17) Deferred tax assets and liabilities reflect the net tax effects of net operating losses, credit carryforwards and temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and amounts used for income tax purposes. The components of the Company’s deferred tax assets and liabilities are as follows: As at December 31, 2018 2017 2016 $ $ $ Future income tax assets Deferred tax assets 10,162 9,617 15,344 Net operating loss carry forwards 27,554 30,250 41,634 Less: valuation allowance (37,716) (39,867) (56,978) Net future income tax assets - - - Based upon the level of historical taxable loss, management believes it is more likely than not that the Company will not realize the benefits of these deductible differences and accordingly has established a full valuation allowance as of December 31, 2018, 2017 and 2016. No deferred tax assets are therefore recognized at this point. Income tax recovery (expense) 2018 2017 2016 $ $ $ Current income tax recovery (expense) - - 17 - - 17 As of December 31, 2018, the Company had the following net operating loss carryforwards available: Income tax loss carry forwards Canadian (expiring 2026) 32,698,487 United States (expiring 2018 - 2031) 78,753,407 The Company follows a comprehensive model for recognizing, measuring, presenting and disclosing uncertain tax positions taken or expected to be taken on a tax return. Tax positions must initially be recognized in the financial statements when it is more likely than not the position will be sustained upon examination by the tax authorities. Such tax positions must initially and subsequently be measured as the largest amount of tax benefit that has a greater than 50% likelihood of being realized upon ultimate settlement with the tax authority assuming full knowledge of the position and relevant facts. The Company currently has no uncertain tax positions and is therefore not reflecting any adjustments for such in its deferred tax assets. There are open statutes of limitations for tax authorities in the U.S., Canada and state jurisdictions to audit the Company’s tax returns for the years ended December 31, 2015, 2016 and 2017. The Company’s policy is to account for income tax related interest and penalties in income tax expense in the accompanying statements of operations. There have been no income tax related interest or penalties assessed or recorded. Other comprehensive loss was not subject to income tax effects and is therefore shown net of taxes.

Asset Retirement Obligations

Asset Retirement Obligations	12 Months Ended
	Dec. 31, 2018
Asset Retirement Obligations [Abstract]
Asset Retirement and Reclamation Obligations	12. Asset Retirement Obligations Asset retirement obligations ("ARO") for the Lost Creek Project are equal to the present value of all estimated future costs required to remediate any environmental disturbances that exist as of the end of the period, using discount rates ranging from 0.1% to 3.2%. I ncluded in this liability are the costs of closure, reclamation, demolition and stabilization of the mine, processing plant, infrastructure, groundwater restoration and ongoing post-closure environmental monitoring and maintenance costs. At December 31, 2018, the total undiscounted amount of the future cash needs was estimated to be $18.4 million. The schedule of payments required to settle the ARO liability extends through 2033. The liability increased approximately $2.5 million based on the estimated remediation work to be completed at Lost Creek, as approved by the Wyoming Department of Environmental Quality in 2018, including the initial development completed on MU2 and the addition of NRC-required remediation costs resulting from regulatory changes to Guide 12. Asset retirement obligations for the Pathfinder properties are equal to the present value of all estimated future costs required to remediate any environmental disturbances that exist as of the end of the period, using discount rates of 2.16% to 3.0%. I ncluded in this liability are the costs of closure, reclamation, demolition and stabilization of the mines, processing plants, infrastructure, groundwater restoration, waste dumps and ongoing post-closure environmental monitoring and maintenance costs. At December 31, 2018, the total undiscounted amount of the future cash needs was estimated to be $12.0 million. The schedule of payments required to settle the ARO liability extends through 2033. The undiscounted future cash needs are based on information provided to the State of Wyoming in conjunction with annual reclamation bonding renewals. Increases in the estimated future cash needs are normally based on increased disturbances projected for the upcoming year. The restricted cash as discussed in note 6 is related to surety bonds which provide security to the related governmental agencies on these obligations. For the period ended Year ended December 31, 2018 December 31, 2017 $ $ Beginning of period 27,036 26,061 Change in estimated liability 2,840 448 Accretion expense 508 527 End of period 30,384 27,036

Other Liabilities

Other Liabilities	12 Months Ended
	Dec. 31, 2018
Other Liabilities [Abstract]
Other Liabilities	13. Other Liabilities As a part of the September 2018 public offering, we sold 13,062,878 warrants priced at $0.01 per warrant. Two warrants are redeemable for one Common Share of the Company’s stock at a price of $1.00 per full share. Because the warrants are priced in US$ and the functional currency of the Ur-Energy Inc. is C$, this created a derivative financial liability. The liability created and adjusted quarterly is a calculated fair value using the Black-Scholes technique described below as there is no active market for the warrants. Any income or loss is reflected in net income for the period. The initial valuation at the time of the offering was $2.212. The revaluation as of December 31, 2018 resulted in a gain of $581 for the period ended December 31, 2018 which is reflected on the statement of operations. The Black-Sholes calculations were based on the current market price, the remaining life to expiration, volatility ranging from 55.2% to 56.6% and a risk-free interest rate which ranged from 1.9% to 2.2%. In addition, as the liability exists in the Canadian parent company, both the liability and the gain or loss are subject to fluctuations in the exchange rate.

Shareholders' Equity and Capita

Shareholders' Equity and Capital Stock	12 Months Ended
	Dec. 31, 2018
Shareholders' Equity and Capital Stock [Abstract]
Shareholders' Equity and Capital Stock	14. Shareholders’ Equity and Capital Stock Common share issuances On August 19, 2014, we filed a universal shelf registration statement on Form S-3 in order that we may offer and sell, from time to time, in one or more offerings, at prices and terms to be determined, up to $100 million of our common shares, warrants to purchase our common shares, our senior and subordinated debt securities, and rights to purchase our common shares and/or our senior and subordinated debt securities. The registration statement became effective September 12, 2014. The 12,921,000 common shares offered in the February 2016 financing were sold for $0.50 per share raising $5.7 million (net of issue costs of $0.8 million) under the shelf registration statement. The registration statement expired in 2017 and was replaced by another shelf registration statement that will be available until August 3, 2020. We entered into an At Market Issuance Sales Agreement (“At Market Agreement”) with MLV & Co. LLC and B Riley FBR, Inc. (May 27, 2016, as amended August 2017), under which we may, from time to time, issue and sell common shares at market prices on the NYSE American or other U.S. market through the distribution agents for aggregate sales proceeds of up to $10,000,000. During 2016, we sold 164,979 Common Shares under the At Market Agreement at an average price of $0.65 per share for gross proceeds of $108 thousand. After deducting transaction fees and commissions we received net proceeds of $105 thousand. After deducting all other costs associated with the completion of the agreement and filing the related prospectus supplement, we received $13 thousand. During 2017, we sold 1,536,169 Common Shares under the At Market Agreement at an average price of $0.76 per share for gross proceeds of $1.2 million. After deducting transaction fees, commissions and all other costs associated with the completion of the agreement and filing the related prospectus supplement, we received net proceeds of $1.1 million. The Company did not sell any Common Shares under the At Market Agreement in 2018. In September 2018, we completed a US$10 million public offering of Common Shares, which included the offering of 12,195,122 Common Shares and accompanying warrants to purchase up to 6,097,561 Common Shares, at a combined public offering price of US$0.82 per Common Share and accompanying warrant. We also granted the underwriters a 30-day option to purchase up to 1,829,268 additional Common Shares and warrants to purchase up to an aggregate of 914,634 Common Shares on the same terms. The underwriters exercised a portion of their option to purchase additional securities at closing, acquiring 867,756 additional warrants to purchase an aggregate of 433,878 Common Shares. Including the partial exercise of the option, the Company issued a total of 12,195,122 Common Shares and 13,062,878 warrants to purchase up to 6,531,439 Common Shares. This offering was completed under the shelf registration statement. During the year ended December 31, 2018, the Company exchanged 505,510 Common Shares for vested RSUs. In addition, 496,838 stock options were exercised for proceeds of $0.3 million. During the year ended December 31, 2017, the Company exchanged 447,663 Common Shares for vested RSUs. In addition, 871,717 stock options were exercised for proceeds of $0.5 million. During the year ended December 31, 2016, the Company exchanged 385,010 Common Shares for vested RSUs. In addition, 16,620 stock options were exercised for proceeds of less than $0.1 million. Stock options In 2005, the Company’s Board of Directors approved the adoption of the Company's stock option plan (the “Option Plan”). Eligible participants under the Option Plan include directors, officers, employees and consultants of the Company. Following the May 2017 amendment of the Option Plan, grants of options will vest over a three-year period: 33.3% on the first anniversary, 33.3% on the second anniversary, and 33.4% on the third anniversary of the grant. The term of options remains unchanged. Activity with respect to stock options is summarized as follows: Weighted- average Options exercise price # $ Balance, December 31, 2015 9,974,407 0.88 Granted 3,062,542 0.57 Exercised (16,620) 0.58 Forfeited (788,883) 0.70 Expired (2,482,512) 1.56 Balance, December 31, 2016 9,748,934 0.63 Granted 2,666,644 0.69 Exercised (871,717) 0.62 Forfeited (536,178) 0.64 Expired (1,548,282) 0.71 Balance, December 31, 2017 9,459,401 0.70 Granted 2,182,955 0.70 Exercised (496,838) 0.58 Forfeited (275,085) 0.72 Expired (1,138,821) 0.83 Outstanding, December 31, 2018 9,731,612 0.64 The exercise price of a new grant is set at the closing price for the stock on the Toronto Stock Exchange (TSX) on the trading day immediately preceding the grant date so there is no intrinsic value as of the date of grant. The fair value of options vested during the year ended December 31, 2018 was $0.8 million. As of December 31, 2018, outstanding stock options are as follows: Options outstanding Options exercisable Weighted- Weighted- average average remaining Aggregate remaining Aggregate Exercise Number contractual intrinsic Number contractual intrinsic price of options life (years) value of options life (years) value Expiry $ $ $ 1.23 0.2 - 0.2 - 31-Mar-19 0.75 0.9 - 0.9 - 12-Dec-19 0.84 1.4 - 1.4 - 29-May-20 0.63 1.6 10 1.6 10 17-Aug-20 0.59 1.9 51 1.9 51 11-Dec-20 0.54 3.0 228 3.0 228 16-Dec-21 0.75 3.2 - 3.2 - 02-Mar-22 0.54 3.7 19 3.7 6 07-Sep-22 0.66 4.0 - 4.0 - 15-Dec-22 0.56 4.2 15 - - - 30-Mar-23 0.68 4.6 - - - - 20-Aug-23 0.67 5.0 - - - - 14-Dec-23 0.64 3.2 323 2.5 295 The aggregate intrinsic value of the options in the preceding table represents the total pre-tax intrinsic value for stock options with an exercise price less than the Company’s TSX closing stock price of CAD $0.89 as of the last trading day in the year ended December 31, 2018, that would have been received by the option holders had they exercised their options as of that date. There were 4,365,410 in-the-money stock options outstanding and 4,031,410 exercisable as of December 31, 2018. Restricted share units On June 24, 2010, the Company’s shareholders approved the adoption of the Company’s restricted share unit plan (the “RSU Plan”). The RSU Plan was approved most recently by our shareholders on May 5, 2016. Eligible participants under the RSU Plan include directors and employees, including officers, of the Company. Under the terms of the RSU Plan, RSUs vest 100% on the second anniversary of the date of the grant. The RSU Plan also provides for redemption, instead of cancellation, of outstanding RSUs at the date of redemption for retiring directors and executive officers, which is defined as a threshold of combined service and age of 65 years, and a minimum of five years of service to the Company. Upon RSU vesting, the holder of an RSU will receive one common share, for no additional consideration, for each RSU held. Activity with respect to RSUs is summarized as follows: Number Weighted of average grant RSUs date fair value Unvested, December 31, 2015 860,095 0.82 Granted 715,638 0.57 Vested (281,342) 0.81 Forfeited (20,401) 0.65 Unvested, December 31, 2016 1,273,990 0.60 Granted 541,658 0.69 Vested (575,818) 0.69 Forfeited (63,878) 0.58 Unvested, December 31, 2017 1,175,952 0.65 Granted 470,756 0.71 Vested (621,092) 0.63 Forfeited (40,120) 0.57 Unvested, December 31, 2018 985,496 0.67 As of December 31, 2018, outstanding RSUs are as follows: Number of Remaining Aggregate unvested life intrinsic Grant date RSUs (years) value $ December 15, 2017 516,226 0.96 336 August 20, 2018 239,423 1.64 156 December 14, 2018 229,847 1.96 149 985,496 1.36 641 As of March 30, 2018, one of our directors retired. Under the terms of our RSU Plan, his 62,000 outstanding RSUs automatically vested. In December 2018, 32,000 of the RSUs were redeemed for Common Shares commensurate with the redemption of the balance of that grant. The compensation committee will determine if he will receive stock or cash for the remaining RSUs to be redeemed in accordance with the related redemption date as set forth in the Plan. As of December 31, 2016, 8,374 RSUs had been vested and redeemed but not issued due to the timing of transferring them to the brokers designated by the related employees. They were subsequently issued in January and February 2017. As of December 31, 2015, 212,803 RSUs had been vested but not redeemed. In January 2016, 197,374 were redeemed for common shares while the balance of 15,429 were retained and not redeemed to pay the related taxes due on redemption. Warrants The warrants outstanding at December 31, 2017 were issued in Canadian dollars and have been converted to their US$ equivalent for presentation purposes. The warrants were issued in conjunction with a now repaid loan facility with RMB Australia Holdings. On September 25, 2018, the Company issued 13,062,878 warrants to purchase 6,531,439 of our Common Shares at $1.00 per full share (see note 13). The following represents warrant activity during the year ended December 31, 2018: Number Number of of shares to be issued Per share warrants upon exercise exercise price $ Outstanding, December 31, 2015 8,224,112 8,224,112 1.71 Expired (2,379,545) (2,379,545) 1.34 Outstanding, December 31, 2016 5,844,567 5,844,567 1.02 Outstanding, December 31, 2017 5,844,567 5,844,567 0.97 Granted 13,062,878 6,531,439 1.00 Expired (5,844,567) (5,844,567) 0.97 Outstanding, December 31, 2018 13,062,878 6,531,439 1.00 As of December 31, 2018, outstanding warrants are as follows: Remaining Aggregate Exercise Number contractual Intrinsic price of warrants life (years) Value Expiry $ $ 1.00 2.7 - 25-Sep-21 1.00 2.7 - Share-based compensation expense Stock-based compensation expense was $0.9 million, $0.9 million and $0.9 million for the years ended December 31, 2018, 2017 and 2016, respectively. As of December 31, 2018, there was approximately $1.2 million of total unrecognized compensation expense (net of estimated pre-vesting forfeitures) related to unvested share-based compensation arrangements granted under the Option Plan and $0.5 million under the RSU Plan. The expenses are expected to be recognized over a weighted-average period of 2.4 years and 1.5 years, respectively. Cash received from stock options exercised during the years ended December 31, 2018, 2017 and 2016 was $0.4 million, $0.5 million, and less than $0.1 million, respectively. Fair Value Calculations The initial fair value of RSUs, options and warrants granted during the years ended December 31, 2018, 2017 and 2016 was determined using the Black-Scholes option pricing model with the following assumptions: 2018 2017 2016 Expected option life (years) 3.74 - 3.79 3.73 - 3.74 3.72 Expected warrant life (years) 3.00 - - Expected volatility 54 - 57% 56 - 57% 57% Risk-free interest rate 1.9% - 2.2% 1.0% - 1.6% 1.0% Expected dividend rate 0% 0% 0% Forfeiture rate (options) 5.8% - 6.0% 5.3% - 6.0% 5.6% Forfeiture rate (warrants) 0% - - Forfeiture rate (RSUs) 5.5 - 5.9% 6.1% 6.2% The Company estimates expected volatility using daily historical trading data of the Company’s common shares, because this is recognized as a valid method used to predict future volatility. The risk-free interest rates are determined by reference to Canadian Treasury Note constant maturities that approximate the expected option term. The Company has never paid dividends and currently has no plans to do so. Share-based compensation expense is recognized net of estimated pre-vesting forfeitures, which results in recognition of expense on options that are ultimately expected to vest over the expected option term. Forfeitures were estimated using actual historical forfeiture experience. The fair value used for each RSU issued in 2018 ranged from CAD$0.91 to $0.93. The fair value used for each RSU issued in 2017 and 2016 was CAD$0.90 and CAD $0.73, respectively. Each of the issuance prices was the closing price of our Common Shares on the TSX as of the trading day immediately preceding the grant date.

Sales

Sales	12 Months Ended
	Dec. 31, 2018
Revenue [Abstract]
Sales	15. Sales Revenue is primarily derived from the sale of U 3 O 8 to domestic utilities under contracts or spot sales. Revenue consists of: Year ended December 31, 2018 2017 $ $ Sale of produced inventory Company A 237 - Company B - 1,777 Company C - 3,141 Company D - 7,821 237 12,739 Sales of purchased inventory Company B 15,636 15,340 Company C 7,580 10,212 23,216 25,552 Total sales 23,453 38,291 Disposal fee income 43 77 23,496 38,368

Other Income

Other Income	12 Months Ended
	Dec. 31, 2018
Other Income
Other Income	16. Other Income In June 2018, we monetized the present value from portions of agreements with one of our utility customers related to 165,000 pounds of U 3 O 8 to be delivered in 2021. We received proceeds of $3.5 million when the transaction was executed.

Supplementary Information For S

Supplementary Information For Statement of Cash Flows	12 Months Ended
	Dec. 31, 2018
Supplementary Information For Statement of Cash Flows
Supplementary Information For Statement of Cash Flows	17. Supplemental Information for Statement of Cash Flows Cash per the Statement of Cash Flows consists of the following: As at December 31, 2018 December 31, 2017 $ $ Cash and cash equivalents 6,372 3,879 Restricted cash 7,458 7,558 13,830 11,437

Financial instruments

Financial instruments	12 Months Ended
	Dec. 31, 2018
Financial instruments [Abstract]
Financial instruments	18. Financial instruments The Company’s financial instruments consist of cash and cash equivalents, accounts receivable, restricted cash, deposits, accounts payable and accrued liabilities and notes payable. The Company is exposed to risks related to changes in foreign currency exchange rates, interest rates and management of cash and cash equivalents and short-term investments. Credit risk Financial instruments that potentially subject the Company to concentrations of credit risk consist of cash and cash equivalents and restricted cash. These assets include Canadian dollar and U.S. dollar denominated certificates of deposits, money market accounts and demand deposits. These instruments are maintained at financial institutions in Canada and the United States. Of the amount held on deposit, approximately $0.7 million is covered by the Canada Deposit Insurance Corporation, the Securities Investor Protection Corporation or the United States Federal Deposit Insurance Corporation, leaving approximately $13.7 million at risk at December 31, 2018 should the financial institutions with which these amounts are invested be rendered insolvent. The Company does not consider any of its financial assets to be impaired as of December 31, 2018. Liquidity risk Liquidity risk is the risk that the Company will not be able to meet its financial obligations as they come due. The Company has financed its operations from its inception primarily through sales, the issuance of equity securities and debt instruments. Production commenced in August 2013 after receiving final operational clearance from the NRC. Product sales commenced in December 2013. As at December 31, 2018, the Company’s financial liabilities consisted of trade accounts payable and accrued trade and payroll liabilities of $1.0 million which are due within normal trade terms of generally 30 to 60 days, notes payable which will be payable over periods of 0 to 5 years, and asset retirement obligations with estimated completion dates until 2033. Market risk Market risk is the risk to the Company of adverse financial impacts due to changes in the fair value or future cash flows of financial instruments as a result of fluctuations in interest rates and foreign currency exchange rates. Interest rate risk Financial instruments that expose the Company to interest rate risk are its cash equivalents, deposits, restricted cash and debt financings. The Company’s objectives for managing its cash and cash equivalents are to maintain sufficient funds on hand at all times to meet day to day requirements and to place any amounts considered in excess of day to day requirements on short-term deposit with the Company's financial institutions so that they earn interest. Currency risk The Company maintains a balance of less than $0.2 million in foreign currency resulting in a low currency risk. Sensitivity analysis The Company has completed a sensitivity analysis to estimate the impact that a change in interest rates would have on the net loss of the Company. This sensitivity analysis shows that a change of +/- 100 basis points in interest rate would have 0.1 impact for the year ended December 31, 2018. The financial position of the Company may vary at the time that a change in interest rates occurs causing the impact on the Company’s results to differ from that shown above.

Commitments

Commitments	12 Months Ended
	Dec. 31, 2018
Commitments [Abstract]
Commitments	19. Commitments Under the terms of its operating lease for vehicles and the office premises in Casper, Wyoming, the Company is committed to minimum annual lease payments as follows: Year ended December 31, $ 2019 95 2020 and thereafter - 95 Rent expense under these agreements was $0.2 million, $0.2 million and $0.2 million for the years ended December 31, 2018, 2017 and 2016, respectively. Principal payments required under debt agreements are as follows: Year ended: 31-Dec-19 5,183 31-Dec-20 5,487 31-Dec-21 4,326 14,996 Off Take Sales Agreements As of December 31, 2018, we continue to have multiple off take sales agreements with various U.S. utilities. These agreements were completed between 2012 and 2016 for deliveries between 2019 and 2021 as follows: SUMMARY OF OFF TAKE SALES AGREEMENTS Production Year Total Pounds Uranium Concentrates Contractually Committed Expected revenue from current contracts 2019 500,000 pounds $ 24,713 2020 390,000 pounds $ 18,040 2021 25,000 pounds $ 1,306

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2018
Summary of Significant Accounting Policies [Abstract]
Basis of presentation	Basis of presentation These financial statements have been prepared by management in accordance with United States generally accepted accounting principles (“US GAAP”) and include all the assets, liabilities and expenses of the Company and its wholly-owned subsidiaries Ur-Energy USA Inc.; NFU Wyoming, LLC; Lost Creek ISR, LLC; NFUR Bootheel, LLC; Hauber Project LLC; NFUR Hauber, LLC; and Pathfinder Mines Corporation. All inter-company balances and transactions have been eliminated upon consolidation. Ur-Energy Inc. and its wholly-owned subsidiaries are collectively referred to herein as the “Company.”
Exploration Stage	Exploration Stage The Company has established the existence of uranium resources for certain uranium projects, including the Lost Creek Property. The Company has not established proven or probable reserves, as defined by the SEC under Industry Guide 7, through the completion of a final or “bankable” feasibility study for any of its uranium projects, including the Lost Creek Property. Furthermore, the Company currently has no plans to establish proven or probable reserves for any of its uranium projects for which the Company plans on utilizing in situ recovery (“ISR”) mining, such as the Lost Creek Property or the Shirley Basin Project. As a result, and despite the fact that the Company commenced recovery of uranium at the Lost Creek Project in August 2013, the Company remains in the Exploration Stage as defined under Industry Guide 7, and will continue to remain in the Exploration Stage until such time proven or probable mineral reserves have been established. Since the Company commenced recovery of uranium at the Lost Creek Project without having established proven and probable reserves, any uranium resources established or extracted from the Lost Creek Project should not be in any way associated with having established proven or probable mineral reserves. Accordingly, information concerning mineral deposits set forth herein may not be comparable to information made public by companies that have reserves in accordance with United States standards.
Use of estimates	Use of estimates The preparation of consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. The most significant estimates management makes in the preparation of these consolidated financial statements relate to the fair value of stock-based compensation using the factors associated with the Black-Scholes calculations, estimation of the amount of recoverable uranium included in the in-process inventory, estimation of factors surrounding asset retirement obligations such as interest rates, discount rates and inflation rates, total cost and the time until the asset retirement commences and the offset of future income taxes through deferred tax assets. Actual results could differ from those estimates.
Restricted cash	Cash and cash equivalents Cash and cash equivalents consist of cash balances and highly liquid investments with original maturities of three months or less that are considered to be cash equivalents. Cash equivalents are held for the purpose of meeting short-term cash commitments rather than for investment or other purposes. Restricted cash is excluded from cash and cash equivalents and is included in other long-term assets Restricted cash Cash which secures various instruments including a state lease and surety bonds which secure reclamation obligations is shown as restricted cash.
Inventory	Inventory In-process inventory represents uranium that has been extracted from the wellfield and captured in the processing plant and is currently being transformed into a saleable product. Plant inventory is U 3 O 8 that is contained in yellowcake, which has been dried and packaged in drums, but not yet shipped to the conversion facility. The amount of U 3 O 8 in the plant inventory is determined by weighing and assaying the amount of U 3 O 8 packaged into drums at the plant. Conversion facility inventory is U 3 O 8 that has been shipped to the conversion facility. The amount of U 3 O 8 in the conversion facility inventory includes the amount of U 3 O 8 contained in drums shipped to the conversion facility plus or minus any final weighing and assay adjustments per the terms of the uranium supplier’s agreement with the conversion facility. The Company’s inventories are measured at the lower of cost or net realizable value and reflect the U 3 O 8 content in various stages of the production and sales process including in-process inventory, plant inventory and conversion facility inventory. Operating supplies are expensed when purchased.
Mineral properties	Mineral properties Acquisition costs of mineral properties are capitalized. When production is attained, amortization is calculated on a straight-line basis. The original estimated life for the Lost Creek Project was 10 years which is being used to amortize the mineral property acquisition costs. If properties are abandoned or sold, they are written off. If properties are considered to be impaired in value, the costs of the properties are written down to their estimated fair value at that time.
Exploration, evaluation and development costs	Exploration, evaluation and development costs Exploration and evaluation expenses consist of labor, annual lease and maintenance fees and associated costs of the exploration geology department as well as exploration costs including drilling and analysis on properties which have not reached the permitting or operations stage. Development expense relates to the Company’s Lost Creek, LC East and Shirley Basin projects, which are more advanced in terms of permitting and preliminary economic assessments. Development expenses include all costs associated with exploring, delineating and permitting within those projects, the costs associated with the construction and development of permitted mine units including wells, pumps, piping, header houses, roads and other infrastructure related to the preparation of a mine unit to begin extraction operations as well as the cost of drilling and completing disposal wells.
Capital assets	Capital assets Property, plant and equipment assets, including machinery, processing equipment, enclosures, vehicles and expenditures that extend the life of such assets, are recorded at cost including acquisition and installation costs. The enclosure costs include both the building housing and the processing equipment necessary for the extraction of uranium from impregnated water pumped in from the wellfield to the packaging of uranium yellowcake for delivery into sales. These enclosure costs are combined as the equipment and related installation associated with the equipment is an integral part of the structure itself. The costs of self-constructed assets include direct construction costs, direct overhead and allocated interest during the construction phase. Depreciation is calculated using a declining balance method for most assets with the exception of the plant enclosure and related equipment. Depreciation on the plant enclosure and related equipment is calculated on a straight-line basis. Estimated lives for depreciation purposes range from three years for computer equipment and software to 20 years for the plant enclosure and the name plate life of the related equipment.
Impairment of long-lived assets	Impairment of long-lived assets The Company assesses the possibility of impairment in the net carrying value of its long-lived assets when events or circumstances indicate that the carrying amounts of the asset or asset group may not be recoverable. When potential impairment is indicated, management calculates the estimated undiscounted future net cash flows relating to the asset or asset group using estimated future prices, recoverable resources, and operating, capital and reclamation costs. When the carrying value of an asset exceeds the related undiscounted cash flows, the asset is written down to its estimated fair value, which is determined using discounted future cash flows or other measures of fair value.
Asset retirement obligation	Asset retirement obligations For mining properties, various federal and state mining laws and regulations require the Company to reclaim the surface areas and restore groundwater quality to the pre-existing quality or class of use after the completion of mining. The Company records the fair value of an asset retirement obligation as a liability in the period in which it incurs an obligation associated with the retirement of tangible long-lived assets that result from the acquisition, construction, development and/or normal use of the assets. Asset retirement obligations consist of estimated final well closures, plant closure and removal and associated reclamation and restoration costs to be incurred by the Company in the future. The estimated fair value of the asset retirement obligation is based on the current cost escalated at an inflation rate and discounted at a credit adjusted risk-free rate. This liability is capitalized as part of the cost of the related asset and amortized over its remaining productive life. The liability accretes until the Company settles the obligation.
Revenue recognition	Revenue recognition The Company adopted Topic 606 effective January 1, 2018. The Company purchases and produces U 3 O 8 and recognizes revenue at the point of transfer of control, and revenue will continue to be recognized at that point under the new standard. The adoption of the new standard had no impact on either our recognition processes or reporting. We elected the modified retrospective basis for implementing the standard. As we had no contracts that were affected by the implementation, there were no changes to prior financial reports. In addition, there is no change in our revenue recognition treatment in the current period. Our revenues are primarily derived from the sale of U 3 O 8 under either long-term (delivery in typically two to five years) or spot (immediate delivery) contracts with our customers. The contracts specify the quantity to be delivered, the price or specific calculation method of the price, payment terms and the year(s) of the delivery. There may be some variability in the dates of the delivery or the quantity to be delivered depending on the contract, but those issues are addressed before the delivery date. When a delivery is approved, the Company notifies the conversion facility with instructions for a title transfer to the customer. Revenue is recognized once a title transfer of the U 3 O 8 is confirmed by the conversion facility. We also receive a small amount of revenue from disposal fees. We have contracts with our customers which specify the type and volume of material which can be disposed. Monthly, we invoice those customers based on deliveries of material to the disposal site by the customer. Materials are measured and categorized at the time of delivery and verified by the customer. We recognize the revenue at the end of the month in which the material was received.
Stock-based compensation	Stock-based compensation Stock-based compensation cost from the issuance of stock options and restricted share units (“RSUs”) is measured at the grant date based on the fair value of the award and is recognized over the related service period. Stock-based compensation cost is charged to mine operations, exploration and evaluation, development, and general and administrative expense on the same basis as other compensation costs.
Income taxes	Income taxes The Company accounts for income taxes under the asset and liability method which requires the recognition of deferred income tax assets and liabilities for the expected future tax consequences of temporary differences between the carrying amounts and tax bases of assets and liabilities. The Company provides a valuation allowance on deferred tax assets unless it is more likely than not that such assets will be realized.
Earnings and loss per share calculations	Earnings and loss per share calculations Diluted earnings per common share are calculated by including all options which are in-the-money based on the average stock price for the period as well as RSUs which were outstanding at the end of the quarter. The treasury stock method was applied to determine the dilutive number of options. Warrants are included only if the exercise price is less than the average stock price for the quarter. In periods of loss, the diluted loss per common share is equal to the basic loss per common share due to the anti-dilutive effect of all convertible securities.
Classification of financial instruments	Classification of financial instruments The Company’s financial instruments consist of cash, short-term investments, accounts receivable, restricted cash, deposits, accounts payable and accrued liabilities, other liabilities and notes payable. The Company has made the following classifications for these financial instruments: · Cash, accounts receivable, restricted cash and deposits are recorded at amortized cost. Interest income is recorded using the effective interest rate method and is included in income for the period. · Accounts payable and accrued liabilities and notes payable are measured at amortized cost. · Other liabilities, which related to the derivative on the warrant issued in U.S. dollars, are adjusted to the market value using the Black-Sholes valuation method at the end of each reporting period.
New accounting pronouncements which may affect future reporting	New accounting pronouncements which may affect future reporting In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) , which requires lessees to recognize all leases, including operating leases, unless the lease is a short-term lease. ASU 2016-02 also requires additional disclosures regarding leasing arrangements. ASU 2016-02 is effective for interim periods and fiscal years beginning after December 15, 2018, and early application is permitted. Now, the only leases we hold are for small office equipment, office space in one location and a limited number of leases on select mineral properties. The additional disclosures to reflect those leases will not have a material impact on our statement of financial position. New accounting pronouncements which were implemented this year In May 2014, the FASB issued Accounting Standards Update (“ASU”) 2014-09, “ Revenue from Contracts with Customers (Topic 606) .” The amendments in ASU 2014-09 affect any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of non-financial assets unless those contracts are within the scope of other standards ( e.g., insurance contracts or lease contracts). This ASU superseded the revenue recognition requirements in Topic 605, Revenue Recognition , and most industry-specific guidance, and creates a Topic 606, Revenue from Contracts with Customers. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of the promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The Company adopted Topic 606 effective January 1, 2018. The Company purchases and produces U 3 O 8 and recognizes revenue at the point of transfer of control; revenue will continue to be recognized at that point under the new standard. The adoption of the new standard had no impact on either our current or prior revenue recognition processes or reporting. Electing the modified retrospective basis for implementing the standard results in no changes to prior financial reports. Our revenues are primarily derived from the sale of U 3 O 8 under either long-term (delivery in typically two to five years) or spot (immediate delivery) contracts with our customers. The contracts specify the quantity to be delivered, the price or specific calculation method of the price, payment terms and the year(s) of the delivery. There may be some variability in the dates of the delivery or the quantity to be delivered depending on the contract, but those issues are addressed before the delivery date. When a delivery is approved, the Company notifies the conversion facility with instructions for a title transfer to the customer. Revenue is recognized once a title transfer of the U 3 O 8 is confirmed by the conversion facility. We also receive a small amount of revenue from disposal fees. We have contracts with our customers which specify the type and volume of material which can be disposed. Monthly, we invoice those customers based on deliveries of material to the disposal site by the customer. Materials are measured and categorized at the time of delivery and verified by the customer. We recognize the revenue at the end of the month in which the material was received. In January 2016, the FASB issued ASU 2016-1, Recognition and Measurement of Financial Assets and Financial Liabilities (Topic 825) . The amendments in this ASU supersede the guidance to classify equity securities with readily determinable fair values into different categories (that is, trading or available-for-sale) and require equity securities (including other ownership interests, such as partnerships, unincorporated joint ventures, and limited liability companies) to be measured at fair value with changes in the fair value recognized through net income. The amendments allow equity investments that do not have readily determinable fair values to be remeasured at fair value either upon the occurrence of an observable price change or upon identification of an impairment. The amendments also require enhanced disclosures about those investments. The amendments improve financial reporting by providing relevant information about an entity’s equity investments and reducing the number of items that are recognized in other comprehensive income. The Company adopted the amended Topic 825 effective January 1, 2018. The adoption of this guidance had no effect on our financial statements or other financial reporting.

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	12 Months Ended
	Dec. 31, 2018
Cash and Cash Equivalents [Abstract]
Schedule Of Cash and Cash Equivalents	As at December 31, 2018 December 31, 2017 $ $ Cash on deposit at banks 1,936 1,667 Money market funds 4,436 2,212 6,372 3,879

Inventory (Tables)

Inventory (Tables)	12 Months Ended
	Dec. 31, 2018
Inventory [Abstract]
Schedule of Inventory, Current	As at December 31, 2018 December 31, 2017 $ $ In-process inventory 160 315 Plant inventory 345 369 Conversion facility inventory 14,187 3,831 14,692 4,515 Inventory to be sold in 12 months 1,840 4,515 Long term inventory 12,852 -

Restricted Cash (Tables)

Restricted Cash (Tables)	12 Months Ended
	Dec. 31, 2018
Restricted Cash [Abstract]
Schedule of Restricted Cash and Cash Equivalents	As at December 31, 2018 December 31, 2017 $ $ Money market account 7,458 7,458 Certificates of deposit - 100 7,458 7,558 The bonding requirements for reclamation obligations on various properties have been agreed to by the Wyoming Department of Environmental Quality, Wyoming Uranium Recovery Program and United States Department of the Interior. The restricted money market accounts are pledged as collateral against performance surety bonds which are used to secure the potential costs of reclamation related to those properties. Surety bonds providing $29,880 of coverage towards specific reclamation obligations are collateralized by $7,444 of the restricted cash at December 31, 2018

Mineral Properties (Tables)

Mineral Properties (Tables)	12 Months Ended
	Dec. 31, 2018
Mineral Properties [Abstract]
Mineral Property	Lost Creek Pathfinder Other U.S. Property Mines Properties Total $ $ $ $ Balance, December 31, 2016 14,015 19,866 13,148 47,029 Acquisition costs - - 18 18 Change in estimated reclamation costs (note 12) 613 (165) - 448 Amortization (2,818) - - (2,818) Balance, December 31, 2017 11,810 19,701 13,166 44,677 Acquisition costs - - 31 31 Change in estimated reclamation costs (note 12) 2,577 263 - 2,840 Amortization (1,743) - - (1,743) Balance, December 31, 2018 12,644 19,964 13,197 45,805

Capital Assets (Tables)

Capital Assets (Tables)	12 Months Ended
	Dec. 31, 2018
Capital Assets
Capital assets	As of As of December 31, 2018 December 31, 2017 Accumulated Net Book Accumulated Net Book Cost Depreciation Value Cost Depreciation Value $ $ $ $ $ $ Rolling stock 3,432 3,290 142 3,388 3,184 204 Enclosures 32,991 8,530 24,461 32,991 6,880 26,111 Machinery and equipment 1,237 728 509 1,237 663 574 Furniture, fixtures and leasehold improvements 119 110 9 119 104 15 Information technology 1,127 1,090 37 1,120 1,063 57 38,906 13,748 25,158 38,855 11,894 26,961

Accounts Payable and Accrued _2

Accounts Payable and Accrued Liabilities (Tables)	12 Months Ended
	Dec. 31, 2018
Accounts Payable and Accrued Liabilities [Abstract]
Schedule of Accounts Payable and Accrued Liabilities	As at December 31, 2018 December 31, 2017 $ $ Accounts payable 620 840 Payroll and other taxes 1,218 1,224 Severance and ad valorem tax payable 505 975 2,343 3,039

Notes Payable (Tables)

Notes Payable (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Payable [Abstract]
Schedule of Debt	As at December 31, 2018 December 31, 2017 $ $ Current debt Sweetwater County Loan 5,183 4,895 Less deferred financing costs (121) (121) 5,062 4,774 Long term debt Sweetwater County Loan 9,813 14,996 Less deferred financing costs (213) (334) 9,600 14,662
Schedule Of Outstanding Debt	Debt Total 2019 2020 2021 Maturity $ $ $ $ Sweetwater County Loan Principal 14,996 5,183 5,487 4,326 01-Oct-21 Interest 1,324 752 447 125 Total 16,320 5,935 5,934 4,451

Income taxes (Tables)

Income taxes (Tables)	12 Months Ended
	Dec. 31, 2018
Income Taxes
Schedule of Effective Income Tax Rate Reconciliation	Year ended December 31, 2018 2017 2016 $ $ $ Income (loss) before income taxes 4,564 76 (3,027) Statutory rate Statutory rate 1,209 20 (804) State tax 335 - - Permanent differences (164) 91 154 True-Ups and Other 422 17,115 (110) Effect of Foreign Tax Rate Difference (379) 355 (28) Change in valuation allowance (1,423) (17,581) 771 Total - - (17)
Schedule of Deferred Tax Assets and Liabilities	As at December 31, 2018 2017 2016 $ $ $ Future income tax assets Deferred tax assets 10,162 9,617 15,344 Net operating loss carry forwards 27,554 30,250 41,634 Less: valuation allowance (37,716) (39,867) (56,978) Net future income tax assets - - -
Summary of Valuation Allowance	Income tax recovery (expense) 2018 2017 2016 $ $ $ Current income tax recovery (expense) - - 17 - - 17
Summary of Operating Loss Carryforwards [Table Text Block]	Income tax loss carry forwards Canadian (expiring 2026) 32,698,487 United States (expiring 2018 - 2031) 78,753,407

Asset Retirement Obligations (T

Asset Retirement Obligations (Tables)	12 Months Ended
	Dec. 31, 2018
Asset Retirement Obligations [Abstract]
Schedule of Asset Retirement Obligations	For the period ended Year ended December 31, 2018 December 31, 2017 $ $ Beginning of period 27,036 26,061 Change in estimated liability 2,840 448 Accretion expense 508 527 End of period 30,384 27,036

Shareholders' Equity and Capi_2

Shareholders' Equity and Capital Stock (Tables) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Shareholders' Equity and Capital Stock [Abstract]
Schedule of Share-based Compensation, Stock Options, Activity	Weighted- average Options exercise price # $ Balance, December 31, 2015 9,974,407 0.88 Granted 3,062,542 0.57 Exercised (16,620) 0.58 Forfeited (788,883) 0.70 Expired (2,482,512) 1.56 Balance, December 31, 2016 9,748,934 0.63 Granted 2,666,644 0.69 Exercised (871,717) 0.62 Forfeited (536,178) 0.64 Expired (1,548,282) 0.71 Balance, December 31, 2017 9,459,401 0.70 Granted 2,182,955 0.70 Exercised (496,838) 0.58 Forfeited (275,085) 0.72 Expired (1,138,821) 0.83 Outstanding, December 31, 2018 9,731,612 0.64
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range	Options outstanding Options exercisable Weighted- Weighted- average average remaining Aggregate remaining Aggregate Exercise Number contractual intrinsic Number contractual intrinsic price of options life (years) value of options life (years) value Expiry $ $ $ 1.23 0.2 - 0.2 - 31-Mar-19 0.75 0.9 - 0.9 - 12-Dec-19 0.84 1.4 - 1.4 - 29-May-20 0.63 1.6 10 1.6 10 17-Aug-20 0.59 1.9 51 1.9 51 11-Dec-20 0.54 3.0 228 3.0 228 16-Dec-21 0.75 3.2 - 3.2 - 02-Mar-22 0.54 3.7 19 3.7 6 07-Sep-22 0.66 4.0 - 4.0 - 15-Dec-22 0.56 4.2 15 - - - 30-Mar-23 0.68 4.6 - - - - 20-Aug-23 0.67 5.0 - - - - 14-Dec-23 0.64 3.2 323 2.5 295
Schedule of Share-based Compensation, Restricted Stock Units Award Activity	Number Weighted of average grant RSUs date fair value Unvested, December 31, 2015 860,095 0.82 Granted 715,638 0.57 Vested (281,342) 0.81 Forfeited (20,401) 0.65 Unvested, December 31, 2016 1,273,990 0.60 Granted 541,658 0.69 Vested (575,818) 0.69 Forfeited (63,878) 0.58 Unvested, December 31, 2017 1,175,952 0.65 Granted 470,756 0.71 Vested (621,092) 0.63 Forfeited (40,120) 0.57 Unvested, December 31, 2018 985,496 0.67
Schedule Of Share-Based Compensation, Shares Authorized Under Restricted Stock Units, By Grant Date	Number of Remaining Aggregate unvested life intrinsic Grant date RSUs (years) value $ December 15, 2017 516,226 0.96 336 August 20, 2018 239,423 1.64 156 December 14, 2018 229,847 1.96 149 985,496 1.36 641
Schedule Of Share-Based Compensation, Warrants, Activity	Number Number of of shares to be issued Per share warrants upon exercise exercise price $ Outstanding, December 31, 2015 8,224,112 8,224,112 1.71 Expired (2,379,545) (2,379,545) 1.34 Outstanding, December 31, 2016 5,844,567 5,844,567 1.02 Outstanding, December 31, 2017 5,844,567 5,844,567 0.97 Granted 13,062,878 6,531,439 1.00 Expired (5,844,567) (5,844,567) 0.97 Outstanding, December 31, 2018 13,062,878 6,531,439 1.00
Schedule Of Share-based Compensation Shares Authorized Under Warrants Plans by exercise price range	Remaining Aggregate Exercise Number contractual Intrinsic price of warrants life (years) Value Expiry $ $ 1.00 2.7 - 25-Sep-21 1.00 2.7 -
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	2018 2017 2016 Expected option life (years) 3.74 - 3.79 3.73 - 3.74 3.72 Expected warrant life (years) 3.00 - - Expected volatility 54 - 57% 56 - 57% 57% Risk-free interest rate 1.9% - 2.2% 1.0% - 1.6% 1.0% Expected dividend rate 0% 0% 0% Forfeiture rate (options) 5.8% - 6.0% 5.3% - 6.0% 5.6% Forfeiture rate (warrants) 0% - - Forfeiture rate (RSUs) 5.5 - 5.9% 6.1% 6.2%
Long term debt	$ 14,996

Sales (Tables)

Sales (Tables)	12 Months Ended
	Dec. 31, 2018
Revenue [Abstract]
Schedule Of Revenue	Year ended December 31, 2018 2017 $ $ Sale of produced inventory Company A 237 - Company B - 1,777 Company C - 3,141 Company D - 7,821 237 12,739 Sales of purchased inventory Company B 15,636 15,340 Company C 7,580 10,212 23,216 25,552 Total sales 23,453 38,291 Disposal fee income 43 77 23,496 38,368

Supplementary Information For_2

Supplementary Information For Statement of Cash Flows (Tables)	12 Months Ended
	Dec. 31, 2018
Supplementary Information For Statement of Cash Flows
Cash per the Statement of Cash Flows	As at December 31, 2018 December 31, 2017 $ $ Cash and cash equivalents 6,372 3,879 Restricted cash 7,458 7,558 13,830 11,437

Commitments (Tables)

Commitments (Tables)	12 Months Ended
	Dec. 31, 2018
Commitments [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	Year ended December 31, $ 2019 95 2020 and thereafter - 95
Schedule of Maturities of Long-term Debt	Year ended: 31-Dec-19 5,183 31-Dec-20 5,487 31-Dec-21 4,326 14,996
Summary of Off-Take Sales Agreements	SUMMARY OF OFF TAKE SALES AGREEMENTS Production Year Total Pounds Uranium Concentrates Contractually Committed Expected revenue from current contracts 2019 500,000 pounds $ 24,713 2020 390,000 pounds $ 18,040 2021 25,000 pounds $ 1,306

Nature of Operations (Details)

Nature of Operations (Details)	12 Months Ended
	Dec. 31, 2018
Nature of Operations [Abstract]
Date of incorporation	Mar. 22, 2004
Operations Commenced Date	Aug. 1, 2013

Liquidity Risk (Details)

Liquidity Risk (Details) $ in Millions	Dec. 31, 2018USD ($)
Liquidity Risk [Abstract]
Trade accounts payable, accrued trade and payroll liabilities	$ 1
Notes Payable	15
Notes payable due within 1 year	$ 5.2

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Summary of Significant Accounting Policies [Abstract]
Restricted cash	$ 7,458,000	$ 7,558,000

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Deferred financing costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Current deferred financing costs	$ 121	$ 121
Deferred financing costs	$ 213	$ 334
Computer Equipment [Member]
Estimated life	3 years
Software [Member]
Estimated life	3 years
Lost Creek Project
Estimated life	10 years
Maximum | Plant enclosure and equipment
Estimated life	20 years

Cash and Cash Equivalents (Deta

Cash and Cash Equivalents (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Cash and Cash Equivalents [Abstract]
Cash on deposit at banks	$ 1,936,000	$ 1,667,000
Money market funds	4,436,000	2,212,000
Cash and cash equivalents	$ 6,372,000	$ 3,879,000

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Inventory
Inventory, Net, Total	$ 14,692	$ 4,515
Inventory Current	1,840	4,515
Inventory, Noncurrent	12,852
Reduction in inventory valuation	318,000
In Process Inventory [Member]
Inventory
Inventory, Net, Total	160	315
Plant Inventory [Member]
Inventory
Inventory, Net, Total	345	369
Conversion Facility Inventory [Member]
Inventory
Inventory, Net, Total	$ 14,187	$ 3,831

Restricted Cash (Details)

Restricted Cash (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Restricted Cash
Restricted cash	$ 7,458,000	$ 7,558,000
Reclamation bonding requirement	29,880,000
Certificate of deposit [Member]
Restricted Cash
Restricted cash		100,000
Money Market Funds [Member]
Restricted Cash
Restricted cash	7,458,000	$ 7,458,000
Money Market Funds [Member] | Surety Bond [Member]
Restricted Cash
Restricted cash pledged as collateral	$ 7,444,000

Mineral Properties - rollforwar

Mineral Properties - rollforward (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Balance at beginning of period	$ 44,677,000	$ 47,029,000
Acquisition costs	31,000	18,000
Increase in reclamation costs	2,840,000	448,000
Change in estimated reclamation costs (Note 13)	2,840,000	448,000
Amortization	(1,743,000)	(2,818,000)
Balance at end of period	45,805,000	44,677,000
Lost Creek Project
Balance at beginning of period	11,810,000	14,015,000
Increase in reclamation costs	2,577,000
Change in estimated reclamation costs (Note 13)	2,500,000	613,000
Amortization	(1,743,000)	(2,818,000)
Balance at end of period	12,644,000	11,810,000
Pathfinder properties
Balance at beginning of period	19,701,000	19,866,000
Increase in reclamation costs	263,000	(165,000)
Balance at end of period	19,964,000	19,701,000
Other U.S. Properties [Member]
Balance at beginning of period	13,166,000	13,148,000
Acquisition costs	31,000	18,000
Balance at end of period	$ 13,197,000	$ 13,166,000

Mineral Properties (Details)

Mineral Properties (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2005
Revenue, Net, Total			$ 23,496	$ 38,368	$ 27,305
Write-off of equity investments (note 8)					$ 1,089
Other U.S. Properties [Member]
Write-off of equity investments (note 8)		$ 62
Nfu Wyoming LLC | Lost Creek Project
Percentage of asset acquired						100.00%
Aggregate consideration						$ 20,000
Nfu Wyoming LLC | Mining Claims In LC North LC East or LC West
Revenue, Net, Total			$ 0
Pathfinder Mines Corporation
Aggregate consideration	$ 6,700
Royalty (as a percent)	5.00%
Estimated asset reclamation obligation	$ 5,700
Deferred tax liabilities	3,300
Mineral properties	$ 15,300

Capital Assets (Details)

Capital Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Capital Assets
Cost	$ 38,906	$ 38,855
Accumulated Depreciation	13,748	11,894
Net Book Value	25,158	26,961
Depreciation expense	1,900	3,500	$ 3,800
Rolling stock [Member]
Capital Assets
Cost	3,432	3,388
Accumulated Depreciation	3,290	3,184
Net Book Value	142	204
Building Enclosures [Member]
Capital Assets
Cost	32,991	32,991
Accumulated Depreciation	8,530	6,880
Net Book Value	24,461	26,111
Machinery and equipment [Member]
Capital Assets
Cost	1,237	1,237
Accumulated Depreciation	728	663
Net Book Value	509	574
Furniture, fixtures and leasehold improvements [Member]
Capital Assets
Cost	119	119
Accumulated Depreciation	110	104
Net Book Value	9	15
Information technology [Member]
Capital Assets
Cost	1,127	1,120
Accumulated Depreciation	1,090	1,063
Net Book Value	$ 37	57
Capital Assets [Member]
Capital Assets
Depreciation expense		$ 3,000

Accounts Payable and Accrued _3

Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Accounts Payable and Accrued Liabilities [Abstract]
Accounts payable	$ 620	$ 840
Severance and ad valorem tax payable	505	975
Payroll and other taxes	1,218	1,224
Accounts payable and accrued liabilities	$ 2,343	$ 3,039

Notes Payable - Current vs Long

Notes Payable - Current vs Long-term (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current debt
Less deferred financing costs	$ (121)	$ (121)
Long-term Debt, Current Maturities, Total	5,062	4,774
Long term debt
Less deferred financing costs	(213)	(334)
Long-term Debt	9,600	14,662
Sweetwater IDR Bond [Member]
Current debt
Current Debt	5,183	4,895
Long term debt
Long term debt	$ 9,813	$ 14,996

Notes Payable - Maturity table

Notes Payable - Maturity table (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Notes Payable
Total	$ 16,320
Sweetwater IDR Bond [Member]
Notes Payable
Principal	14,996
Interest	$ 1,324
Debt Instrument, Maturity Date	Oct. 1, 2021
2,017
Notes Payable
Total	$ 5,935
2017 | Sweetwater IDR Bond [Member]
Notes Payable
Principal	5,183
Interest	752
2,018
Notes Payable
Total	5,934
2018 | Sweetwater IDR Bond [Member]
Notes Payable
Principal	5,487
Interest	447
2,019
Notes Payable
Total	4,451
2019 | Sweetwater IDR Bond [Member]
Notes Payable
Principal	4,326
Interest	$ 125

Notes Payable (Details)

Notes Payable (Details) $ in Thousands	Oct. 15, 2013USD ($)	Dec. 31, 2018USD ($)	Jan. 31, 2015item	Dec. 31, 2013
Notes Payable
Proceeds from Issuance of Long-term Debt	$ 34,000
Fixed interest rate (as a percent)				5.75%
Number of installments | item			28
Sweetwater IDR Bond [Member]
Notes Payable
Maturity Date		Oct. 1, 2021
Periodic payment amount		$ 14,996

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Taxes
Federal corporate tax rate	21.00%	35.00%
Uncertain tax positions	$ 0
Income tax related interest or penalties assessed or recorded	$ 0

Income Taxes - reconciliation (

Income Taxes - reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Taxes
Loss before income taxes	$ 4,564	$ 76	$ (3,027)
Statutory rate	21.00%	35.00%
Statutory rate	26.50%	26.50%	26.50%
Expected recovery of income tax	$ 1,209	$ 20	$ (804)
Effect of foreign tax rate differences	335
Non-deductable amounts	(164)	91	154
Effect of changes in enacted future rates from Tax Reform	422	17,115	(110)
Effect of changes in enacted future rates	(379)	355	(28)
Change in valuation allowance	$ (1,423)	$ (17,581)	771
Effect of income tax reconciliation before recovery of income taxes			(17)
Current Income Tax Expense (Benefit), Total			$ (17)

Income Taxes - deferred tax com

Income Taxes - deferred tax components (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017
Income Taxes
Deferred tax assets	$ 15,344	$ 10,162	$ 9,617
Net operating loss carry forwards	41,634	27,554	30,250
Less: valuation allowance	(56,978)	(37,716)	(39,867)
Deferred Tax Assets, Total
Valuation Allowance [Abstract]
Current income tax expense	17
Effect of income tax reconciliation before recovery of income taxes	$ 17

Income Taxes (Details)

Income Taxes (Details) $ in Thousands	Dec. 31, 2018USD ($)
UNITED STATES
Income Tax Loss Carryforward [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	$ 78,753,407
CANADA
Income Tax Loss Carryforward [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	$ 32,698,487

Asset Retirement Obligations (D

Asset Retirement Obligations (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Change in estimated liability	$ 2,840,000	$ 448,000
Lost Creek Project
Estimated Future Cash Undiscounted Amount	18,400,000
Change in estimated liability	$ 2,500,000	$ 613,000
Lost Creek Project | Minimum
Discount Rate Of Asset Retirement Obligations	0.10%
Lost Creek Project | Maximum
Discount Rate Of Asset Retirement Obligations	3.20%
Pathfinder properties
Estimated Future Cash Undiscounted Amount	$ 12,000,000
Pathfinder properties | Minimum
Discount Rate Of Asset Retirement Obligations	2.16%
Pathfinder properties | Maximum
Discount Rate Of Asset Retirement Obligations	3.00%

Asset Retirement Obligations -

Asset Retirement Obligations - Rollfoward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Asset Retirement Obligation Rollforward
Beginning of period	$ 27,036	$ 26,061
Change in estimated liability	2,840	448
Accretion expense	508	527	$ 534
End of period	$ 30,384	$ 27,036	$ 26,061

Other Liabilities (Details)

Other Liabilities (Details) $ / shares in Units, $ in Thousands	1 Months Ended	4 Months Ended	12 Months Ended
	Sep. 30, 2018item$ / sharesshares	Dec. 31, 2018USD ($)$ / shares	Dec. 31, 2018USD ($)$ / shares	Dec. 31, 2016USD ($)$ / shares	Dec. 31, 2017$ / shares	Dec. 31, 2015$ / shares
Other Liabilities
Exercise price		$ 1	$ 1	$ 1.02	$ 0.97	$ 1.71
Warrants mark to market adjustment | $			$ 581	$ 36
Warrants
Other Liabilities
Number of securities called by each warrant | shares	0.5
Warrants sold | shares	13,062,878
Sale price (per warrant)	$ 0.01
Exercise price	1
Initial warrant liability (per share)	$ 2.212
Number of warrants redeemable shares | item	2
Warrants mark to market adjustment | $		$ 581
Minimum | Warrants
Other Liabilities
Volatility rate (as percentage)		55.20%
Risk-free interest rate (as percentage)		1.90%
Maximum | Warrants
Other Liabilities
Volatility rate (as percentage)		56.60%
Risk-free interest rate (as percentage)		2.20%

Shareholders' Equity and Capi_3

Shareholders' Equity and Capital Stock - Non-compensation transactions (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 29, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Aug. 19, 2014
Shareholders' Equity and Capital Stock [Abstract]
Common shares issued value		$ 7,399	$ 1,076	$ 5,684
Shares Authorized Value					$ 100,000
Gross proceeds	$ 5,700		1,200	108
Net proceeds			1,100	105
Amount received after deducting other costs				$ 13
Sale of Stock, Number of Shares Issued in Transaction	12,921,000			164,979
Stock issuance costs	$ 800	$ 902	$ 93	$ 884
Sale of Stock, Price Per Share	$ 0.50			$ 0.65

Shareholders' Equity and Capi_4

Shareholders' Equity and Capital Stock - options activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Options Rollforward
Outstanding, Beginning Balance	9,459,401	9,748,934	9,974,407
Granted, Options	2,182,955	2,666,644	3,062,542
Exercised, Options	(496,838)	(871,717)	(16,620)
Forfeited, Options	(275,085)	(536,178)	(788,883)
Expired, Options	(1,138,821)	(1,548,282)	(2,482,512)
Outstanding Ending Balance, Options	9,731,612	9,459,401	9,748,934
Outstanding, Beginning Balance, Weighted-average exercise price	$ 0.70	$ 0.63	$ 0.88
Granted, Weighted-average exercise price	0.70	0.69	0.57
Exercised, Weighted-average exercise price	0.58	0.62	0.58
Forfeited, Weighted-average exercise price	0.72	0.64	0.70
Expired, Weighted-average exercise price	0.83	0.71	1.56
Outstanding Ending Balance, Weighted-average exercise price	0.64	$ 0.70	$ 0.63
Grant date intrinsic value	$ 0

Shareholders' Equity and Capi_5

Shareholders' Equity and Capital Stock - o/s options (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Outstanding Stock Options
Exercise price	$ 0.64	$ 0.70	$ 0.63	$ 0.88
Number of options, Outstanding	9,731,612	9,459,401	9,748,934	9,974,407
Weighted- average remaining contractual life (years), Outstanding	3 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding	$ 323,000
Number of options, Exercisable	6,117,506
Weighted- average remaining contractual life (years), Exercisable	2 years 6 months
Aggregate Intrinsic Value, Exercisable	$ 295,000
Exercise price $1.23
Outstanding Stock Options
Exercise price	$ 1.23
Number of options, Outstanding	100,000
Weighted- average remaining contractual life (years), Outstanding	2 months 12 days
Number of options, Exercisable	100,000
Weighted- average remaining contractual life (years), Exercisable	2 months 12 days
Expiry	Mar. 31, 2019
Exercise price $0.75
Outstanding Stock Options
Exercise price	$ 0.75
Number of options, Outstanding	724,274
Weighted- average remaining contractual life (years), Outstanding	10 months 24 days
Number of options, Exercisable	724,274
Weighted- average remaining contractual life (years), Exercisable	10 months 24 days
Expiry	Dec. 12, 2019
Exercise price $0.84
Outstanding Stock Options
Exercise price	$ 0.84
Number of options, Outstanding	200,000
Weighted- average remaining contractual life (years), Outstanding	1 year 4 months 24 days
Number of options, Exercisable	200,000
Weighted- average remaining contractual life (years), Exercisable	1 year 4 months 24 days
Expiry	May 29, 2020
Exercise price $0.63
Outstanding Stock Options
Exercise price	$ 0.63
Number of options, Outstanding	568,602
Weighted- average remaining contractual life (years), Outstanding	1 year 7 months 6 days
Aggregate Intrinsic Value, Outstanding	$ 10,000
Number of options, Exercisable	568,602
Weighted- average remaining contractual life (years), Exercisable	1 year 7 months 6 days
Aggregate Intrinsic Value, Exercisable	$ 10,000
Expiry	Aug. 17, 2020
Exercise price $0.59
Outstanding Stock Options
Exercise price	$ 0.59
Number of options, Outstanding	984,878
Weighted- average remaining contractual life (years), Outstanding	1 year 10 months 24 days
Aggregate Intrinsic Value, Outstanding	$ 51,000
Number of options, Exercisable	984,878
Weighted- average remaining contractual life (years), Exercisable	1 year 10 months 24 days
Aggregate Intrinsic Value, Exercisable	$ 51,000
Expiry	Dec. 11, 2020
Exercise price $0.54
Outstanding Stock Options
Exercise price	$ 0.54
Number of options, Outstanding	2,411,930
Weighted- average remaining contractual life (years), Outstanding	3 years
Aggregate Intrinsic Value, Outstanding	$ 228,000
Number of options, Exercisable	2,411,930
Weighted- average remaining contractual life (years), Exercisable	3 years
Aggregate Intrinsic Value, Exercisable	$ 228,000
Expiry	Dec. 16, 2021
Exercise price $0.75
Outstanding Stock Options
Exercise price	$ 0.75
Number of options, Outstanding	300,000
Weighted- average remaining contractual life (years), Outstanding	3 years 2 months 12 days
Number of options, Exercisable	300,000
Weighted- average remaining contractual life (years), Exercisable	3 years 2 months 12 days
Expiry	Mar. 2, 2022
Exercise price $0.54
Outstanding Stock Options
Exercise price	$ 0.54
Number of options, Outstanding	200,000
Weighted- average remaining contractual life (years), Outstanding	3 years 8 months 12 days
Aggregate Intrinsic Value, Outstanding	$ 19,000
Number of options, Exercisable	66,000
Weighted- average remaining contractual life (years), Exercisable	3 years 8 months 12 days
Aggregate Intrinsic Value, Exercisable	$ 6,000
Expiry	Sep. 7, 2022
Exercise price $0.66
Outstanding Stock Options
Exercise price	$ 0.66
Number of options, Outstanding	2,064,916
Weighted- average remaining contractual life (years), Outstanding	4 years
Number of options, Exercisable	761,822
Weighted- average remaining contractual life (years), Exercisable	4 years
Expiry	Dec. 15, 2022
Exercise price $0.56
Outstanding Stock Options
Exercise price	$ 0.56
Number of options, Outstanding	200,000
Weighted- average remaining contractual life (years), Outstanding	4 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding	$ 15,000
Exercise Price $0.67
Outstanding Stock Options
Exercise price	$ 0.67
Number of options, Outstanding	919,358
Weighted- average remaining contractual life (years), Outstanding	5 years
Expiry	Dec. 14, 2023
Exercise Price $0.68
Outstanding Stock Options
Exercise price	$ 0.68
Number of options, Outstanding	1,057,654
Weighted- average remaining contractual life (years), Outstanding	4 years 7 months 6 days
In-The-Money Option
Outstanding Stock Options
Aggregate Intrinsic Value, Outstanding	$ 4,365,410
Number of options, Exercisable	4,031,410

Shareholders' Equity and Capi_6

Shareholders' Equity and Capital Stock - RSU activity (Details) - $ / shares	1 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
RSU Rollforward
Number of RSUs Unvested, Beginning Balance		1,175,952	1,273,990	860,095
Granted, RSU		470,756	541,658	715,638
Number of RSUs Vested	(62,000)	(621,092)	(575,818)	(281,342)
Number of RSUs Forfeited		(40,120)	(63,878)	(20,401)
Number of RSUs Unvested, Ending Balance		985,496	1,175,952	1,273,990
Number of RSUs Unvested, Beginning Balance, Weighted average grant date fair value		$ 0.65	$ 0.60	$ 0.82
Granted, Weighted average grant date fair value		0.71	0.69	0.57
Vested, Weighted average grant date fair value		0.63	0.69	0.81
Forfeited, Weighted average grant date fair value		0.57	0.58	0.65
Number of RSUs Unvested, Ending Balance, Weighted Average Grant Date Fair Value		$ 0.67	$ 0.65	$ 0.60

Shareholders' Equity and Capi_7

Shareholders' Equity and Capital Stock - o/s RSUs (Details) - USD ($) $ in Thousands	Dec. 14, 2018	Aug. 22, 2018	Aug. 17, 2015	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
RSUs
Grant date		Aug. 20, 2018
Number of unvested units		239,423		985,496	1,175,952	1,273,990	860,095
Remaining life (years)		1 year 7 months 21 days		1 year 4 months 10 days
Aggregate Intrinsic Value		$ 156		$ 641
December 16, 2016
RSUs
Grant date			Dec. 15, 2017
Number of unvested units			516,226
Remaining life (years)			11 months 16 days
Aggregate Intrinsic Value			$ 336
Share-Based Compensation Arrangement By Share-Based Number Four Member
RSUs
Grant date	Dec. 14, 2018
Number of unvested units	229,847
Remaining life (years)	1 year 11 months 16 days
Aggregate Intrinsic Value	$ 149

Shareholders' Equity and Capi_8

Shareholders' Equity and Capital Stock - warrants activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2016	Sep. 25, 2018
Class of Warrant or Right
Outstanding Beginning Balance, Warrants	5,844,567	8,224,112
Granted, Warrants	13,062,878
Expired, Warrants	(5,844,567)	(2,379,545)
Outstanding Ending Balance, Warrants	13,062,878	5,844,567
Outstanding Beginning Balance, Number of shares to be issued upon exercise	5,844,567	8,224,112
Granted, Number of shares to be issued upon exercise	6,531,439
Expired, Number of shares to be issued upon exercise	(5,844,567)	(2,379,545)
Ending Balance, Numeber of shares to be issued upon exercise	6,531,439	5,844,567
Outstanding Beginning Balance, Weighted-average exercise price	$ 0.97	$ 1.71
Granted, Weighted-average exercise price	1
Expired, Weighted-average exercise price	0.97	(1.34)
Outstanding Ending Balance, Weighted-average exercise price	$ 1	$ 1.02
Warrants
Class of Warrant or Right
Number of common shares for warrants to purchase			6,097,561

Shareholders' Equity and Capi_9

Shareholders' Equity and Capital Stock - o/s warrants (Details) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Class of Warrant or Right
Exercise price	$ 1	$ 0.97	$ 1.02	$ 1.71
Number of warrants	13,062,878	5,844,567	5,844,567	8,224,112
$0.91 [Member]
Class of Warrant or Right
Exercise price	$ 1
Number of warrants	13,062,878
Remaining contractual life (years)	2 years 8 months 12 days
Expiry	Sep. 25, 2021
$0.95 [Member]
Class of Warrant or Right
Exercise price	$ 1
Number of warrants	13,062,878
Remaining contractual life (years)	2 years 8 months 12 days

Shareholders' Equity and Cap_10

Shareholders' Equity and Capital Stock - addl information (Details) $ / shares in Units, $ in Thousands	Sep. 25, 2018$ / sharesshares	May 27, 2016USD ($)	Dec. 31, 2018$ / sharesshares	Sep. 30, 2018USD ($)$ / sharesshares	Mar. 31, 2018shares	Jan. 31, 2016shares	Jan. 31, 2015shares	Dec. 31, 2017$ / sharesshares	Dec. 31, 2018USD ($)itemshares	Dec. 31, 2017USD ($)shares	Dec. 31, 2016USD ($)shares	Dec. 31, 2018USD ($)$ / sharesshares	Dec. 31, 2017$ / sharesshares	Dec. 31, 2016$ / sharesshares	Dec. 31, 2016$ / sharesshares	Dec. 31, 2015$ / sharesshares
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Intrinsic Value | $												$ 323
Common Stock Shares Issued In Exchange Of Restricted Shares Units			32,000,000			197,374	197,374		505,510	447,663	385,010
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period									496,838	871,717	16,620
Stock Issued During Period, Shares, New Issues										1,536,169
Share Price | (per share)	$ 0.82		$ 0.89										$ 0.76
Payments Of Stock Issuance Costs | $									$ 902	$ 93	$ 884
Proceeds from Issuance of Private Placement | $		$ 10,000		$ 10,000
Option period for underwriters				30 days
Option to purchase additional common shares by underwriters				1,829,268
Warrant to purchase additional common shares by underwriters				914,634
Additional warrants acquired by underwriters				867,756
Common shares purchased by acquiring additional warrants by underwriters				433,878
Number of RSUs Vested					62,000				621,092	575,818	281,342
Stock Issued During Period, Value, New Issues | $									$ 7,399	$ 1,076	$ 5,684
Threshold of combined service and age | item									65
Percent or RSUs that vest					62,000				621,092	575,818	281,342
Minimum Service For RSU Plan									5 years
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Number								9,459,401				9,731,612	9,459,401	9,748,934	9,748,934	9,974,407
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number												6,117,506
Stock based compensation | $									$ 915	$ 891	$ 857
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value | $									800
Proceeds from Stock Options Exercised | $									$ 290	$ 542	$ 9
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period									470,756	541,658	715,638
Granted, Options									2,182,955	2,666,644	3,062,542
RSUs vested but not redeemed (in shares)														8,374	8,374
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares												$ 1	$ 0.97		$ 1.02	$ 1.71
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price | $ / shares								$ 0.90						$ 0.73
Capital Stock
Stockholder's Equity Note [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period									496,838	871,717	16,620
Stock Issued During Period, Shares, New Issues	12,195,122								12,195,122	1,536,169	13,085,979
Stock Issued During Period, Value, New Issues | $									$ 7,399	$ 1,076	$ 5,684
Warrants
Stockholder's Equity Note [Line Items]
Number of securities called by each warrant				0.5
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares				$ 1
In Money Stock Option [Member]
Stockholder's Equity Note [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options | $												$ 1,200
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition									2 years 4 months 24 days
Restricted Stock Units (RSUs) [Member]
Stockholder's Equity Note [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options | $												$ 500
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition									1 year 6 months
RSUs vested but not redeemed (in shares)														212,803	212,803
RSUs redeemed against tax effect (in shares)											15,429
Restricted Stock Units (RSUs) [Member] | Capital Stock
Stockholder's Equity Note [Line Items]
Number of securities called by each warrant												1
Employee Stock Option [Member]
Stockholder's Equity Note [Line Items]
Vesting period								3 years
Proceeds from Stock Options Exercised | $									$ 400	$ 500	$ 100
First Anniversary [Member] | Employee Stock Option [Member]
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Percentage								33.30%
Second Anniversary [Member]
Stockholder's Equity Note [Line Items]
Number of RSUs Vested									100
Percent or RSUs that vest									100
Second Anniversary [Member] | Employee Stock Option [Member]
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Percentage								33.30%
Third Anniversary (Member) | Employee Stock Option [Member]
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Percentage								33.40%
Maximum | Restricted Stock Units (RSUs) [Member]
Stockholder's Equity Note [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price | $ / shares			0.93
Minimum
Stockholder's Equity Note [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price | $ / shares			$ 0.91

Shareholders' Equity and Cap_11

Shareholders' Equity and Capital Stock - assumptions (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility, Minimum	54.00%	56.00%
Expected volatility, Maximum	57.00%	57.00%
Expected volatility			57.00%
Risk-free interest rate			1.00%
Risk-free interest rate, Minimum	1.90%	1.00%
Risk-free interest rate, Maximum	2.20%	1.60%
Expected dividend rate	0.00%	0.00%	0.00%
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected award life (in years)			3 years 8 months 19 days
Forfeiture rate (as a percent)			5.60%
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeiture rate (as a percent)		6.10%	6.20%
Warrants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected award life (in years)	3 years
Forfeiture rate (as a percent)	0.00%
Maximum | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected award life (in years)	3 years 9 months 15 days	3 years 8 months 27 days
Forfeiture rate (as a percent)	6.00%	6.00%
Maximum | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeiture rate (as a percent)	5.90%
Minimum | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected award life (in years)	3 years 8 months 27 days	3 years 8 months 23 days
Forfeiture rate (as a percent)	5.80%	5.30%
Minimum | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeiture rate (as a percent)	5.50%

Sales (Details)

Sales (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Sales
Sales	$ 23,496	$ 38,368	$ 27,305
Disposal fee income	43	77
Sales Revenue, Goods, Net [Member]
Sales
Sales	23,453	38,291
Company A [Member] | Sales Revenue, Goods, Net [Member]
Sales
Sales	237
Company B [Member]
Sales
Sales		1,777
Company B [Member] | Sale Of Purchased Inventory [Member]
Sales
Sales	15,636	15,340
Company C [Member] | Sales Revenue, Goods, Net [Member]
Sales
Sales		3,141
Company C [Member] | Sale Of Purchased Inventory [Member]
Sales
Sales	7,580	10,212
Company D [Member] | Sales Revenue, Goods, Net [Member]
Sales
Sales		7,821
Company A, B, C, D, E [Member] | Sales Revenue, Goods, Net [Member]
Sales
Sales	237	12,739
Company B and C [Member] | Sale Of Purchased Inventory [Member]
Sales
Sales	$ 23,216	$ 25,552
Customer Concentration Risk [Member]
Sales
Concentration Risk, Percentage	100.00%	100.00%
Disposal Fee Income Concentration Risk Percentage	0.2	0.2
Customer Concentration Risk [Member] | Sales Revenue, Goods, Net [Member]
Sales
Total sales, risk percent	99.80%	99.80%
Customer Concentration Risk [Member] | Company A [Member] | Sales Revenue, Goods, Net [Member]
Sales
Concentration Risk, Percentage	1.00%	0.00%
Customer Concentration Risk [Member] | Company B [Member]
Sales
Concentration Risk, Percentage	0.00%	4.60%
Customer Concentration Risk [Member] | Company B [Member] | Sale Of Purchased Inventory [Member]
Sales
Concentration Risk, Percentage	66.50%	40.00%
Customer Concentration Risk [Member] | Company C [Member] | Sales Revenue, Goods, Net [Member]
Sales
Concentration Risk, Percentage	0.00%	8.20%
Customer Concentration Risk [Member] | Company C [Member] | Sale Of Purchased Inventory [Member]
Sales
Concentration Risk, Percentage	32.30%	26.60%
Customer Concentration Risk [Member] | Company D [Member] | Sales Revenue, Goods, Net [Member]
Sales
Concentration Risk, Percentage	0.00%	20.40%
Customer Concentration Risk [Member] | Company A, B, C, D, E [Member] | Sales Revenue, Goods, Net [Member]
Sales
Concentration Risk, Percentage	1.00%	33.20%
Customer Concentration Risk [Member] | Company B and C [Member] | Sale Of Purchased Inventory [Member]
Sales
Concentration Risk, Percentage	98.80%	66.60%

Other Income (Details)

Other Income (Details) $ in Millions	Jun. 30, 2018USD ($)lb
Other Income
Amount of quantity (weight) obligated to deliver in 2021 | lb	165,000
Deferred revenue received | $	$ 3.5

Supplementary Information For_3

Supplementary Information For Statement of Cash Flows (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Supplementary Information For Statement of Cash Flows
Cash and cash equivalents	$ 6,372,000	$ 3,879,000
Restricted cash	7,458,000	7,558,000
Total	$ 13,830,000	$ 11,437,000	$ 9,109,000	$ 8,999,000

Financial instruments (Details)

Financial instruments (Details) $ / shares in Units, $ in Thousands	Sep. 25, 2018$ / sharesshares	Feb. 29, 2016USD ($)	Dec. 31, 2018USD ($)itemshares	Dec. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2016USD ($)shares	Dec. 31, 2018$ / shares	Dec. 31, 2018USD ($)
Financial Instruments
Cash, insured amount							$ 700
Cash, uninsured amount							13,700
Common shares issued for cash, net of issue costs (in shares) | shares				1,536,169
Common shares issued value			$ 7,399	$ 1,076	$ 5,684
Stock issuance costs		$ 800	$ 902	$ 93	$ 884
Share Price | (per share)	$ 0.82			$ 0.76		$ 0.89
Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Change In Basis Points | item			100
Credit Availability Concentration Risk
Financial Instruments
Accounts Payable, Trade, Current							1,000
Interest Rate Risk
Financial Instruments
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Discount Rate							100
Minimum
Financial Instruments
Financial Liabilities Trade Terms Period			30 days
Minimum | Credit Availability Concentration Risk
Financial Instruments
Debt Instrument, Term			0 years
Financial Liabilities Trade Terms Period			30 days
Maximum
Financial Instruments
Financial Liabilities Trade Terms Period			60 days
Maximum | Credit Availability Concentration Risk
Financial Instruments
Debt Instrument, Term			5 years
Financial Liabilities Trade Terms Period			60 days
Maximum | Currency Risk
Financial Instruments
Foreign Currency Cash And Cash Equivalents At Carrying Value							$ 200
Capital Stock
Financial Instruments
Common shares issued for cash, net of issue costs (in shares) | shares	12,195,122		12,195,122	1,536,169	13,085,979
Common shares issued value			$ 7,399	$ 1,076	$ 5,684

Commitments - Lease table (Deta

Commitments - Lease table (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating leases
2,019	$ 95
Minimum annual lease payments	95
Operating Leases, Rent Expense	$ 200	$ 200	$ 200

Commitments - Schedule of Debt

Commitments - Schedule of Debt Principal Payments (Details) $ in Thousands	Dec. 31, 2018USD ($)
Commitments [Abstract]
December 31, 2019	$ 5,183
December 31, 2020	5,487
December 31, 2021	4,326
Long term debt	$ 14,996

Commitments - Off Take Sales Ag

Commitments - Off Take Sales Agreements (Details) lb in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)lb
Commitments [Abstract]
2019 Commitment (in pounds) | lb	500
2020 Commitment (in pounds) | lb	390
2021 Commitment (in pounds) | lb	25
2019 Commitment (in dollars) | $	$ 24,713
2020 Commitment (in dollars) | $	18,040
2021 Commitment (in dollars) | $	$ 1,306