Ur-Energy (URG) 10-Q 27 Jul 18 2018 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 26, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Entity Current Reporting Status	Yes
Entity Common Stock, Shares Outstanding		146,715,824
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 ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents (note 3)	$ 7,530	$ 3,879
Accounts receivable	37	33
Inventory (note 4)		4,515
Prepaid expenses	777	741
Assets, Current, Total	8,344	9,168
Long-term inventory (note 4)	9,804
Restricted cash (note 5)	7,459	7,558
Mineral properties (note 6)	43,871	44,677
Capital assets (note 7)	26,072	26,961
Assets, Noncurrent, Total	87,206	79,196
Assets, Total	95,550	88,364
Current liabilities
Accounts payable and accrued liabilities (note 8)	2,654	3,039
Current portion of notes payable (note 9)	4,916	4,774
Environmental remediation accrual	72	72
Liabilities, Current, Total	7,642	7,885
Notes payable (note 9)	12,167	14,662
Asset retirement obligations (note 10)	27,322	27,036
Liabilities	47,131	49,583
Share Capital
Common shares, without par value, unlimited shares authorized; shares issued and outstanding: 146,715,824 at June 30, 2018 and 146,531,933 at December 31, 2017	177,221	177,063
Warrants	1,006	4,109
Contributed surplus	19,061	15,454
Accumulated other comprehensive income	3,630	3,663
Deficit	(152,499)	(161,508)
Stockholders'Equity Attributable to Parent, Total	48,419	38,781
Liabilities and Equity, Total	95,550	88,364
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	Jun. 30, 2018	Dec. 31, 2017
Common shares, without par value	$ 0	$ 0
Common shares, Shares issued	146,715,824	146,531,933
Common shares, Shares outstanding	146,715,824	146,531,933
Preferred Class A
Class A preferred shares, without par value	$ 0	$ 0
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	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Sales (note 12)	$ 3,807	$ 11,821	$ 23,479	$ 26,649
Cost of sales	(2,225)	(6,573)	(11,983)	(12,868)
Gross profit	1,582	5,248	11,496	13,781
Operating Expenses
Exploration and evaluation	(606)	(691)	(1,372)	(1,603)
Development	(440)	(1,829)	(872)	(2,045)
General and administrative	(1,098)	(963)	(3,020)	(2,677)
Accretion of asset retirement obligations (Note 10)	(126)	(134)	(252)	(266)
Income (loss) from operations	(688)	1,631	5,980	7,190
Net interest expense	(261)	(353)	(549)	(731)
Loss on equity investment	(4)		(5)
Foreign exchange gain	4	(25)	10	(17)
Other income	3,540	63	3,573	63
Net income for the period	$ 2,591	$ 1,316	$ 9,009	$ 6,505
Income (Loss) per common share:
Basic	$ 0.02	$ 0.01	$ 0.06	$ 0.04
Diluted	$ 0.02	$ 0.01	$ 0.06	$ 0.04
Weighted average number of common shares outstanding:
Basic	146,699,582	145,873,898	146,634,457	145,502,117
Diluted	148,495,249	151,669,010	148,430,124	151,297,229
COMPREHENSIVE INCOME (LOSS)
Net income for the period	$ 2,591	$ 1,316	$ 9,009	$ 6,505
Translation adjustment on foreign operations	(12)	29	(33)	18
Comprehensive income (loss) for the period	$ 2,579	$ 1,345	$ 8,976	$ 6,523

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - 6 months ended Jun. 30, 2018 - USD ($) $ in Thousands	Capital Stock	Warrants	Contributed Surplus [Member]	Accumulated Other Comprehensive Income	Deficit	Total
Beginning Balance at Dec. 31, 2017	$ 177,063	$ 4,109	$ 15,454	$ 3,663	$ (161,508)	$ 38,781
Beginning Balance (in shares) at Dec. 31, 2017	146,531,933,000					146,531,933
Exercise of stock options	$ 162		(49)			$ 113
Exercise of stock options (in shares)	183,891,000					183,891
Common shares issued for cash, net $88 of issue costs	$ (4)					$ (4)
Common shares issued for cash, net of issue costs (in shares)						1,536,169
Redemption of vested RSUs			(13)			$ (13)
Expiry of warrants		(3,103)	3,103
Non-cash stock compensation			566			566
Net loss and comprehensive (loss) income				(33)	9,009	8,976
Ending Balance at Jun. 30, 2018	$ 177,221	$ 1,006	$ 19,061	$ 3,630	$ (152,499)	$ 48,419
Ending Balance (in shares) at Jun. 30, 2018	146,715,824,000					146,715,824

Consolidated Statements of Sha6

Consolidated Statements of Shareholders' Equity (Parenthetical) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Statement Of Stockholders Equity [Abstract]
Stock issuance costs	$ 4

Consolidated Statements of Cash

Consolidated Statements of Cash Flow - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash provided by (used in) Operating activities
Net income for the period	$ 9,009	$ 6,505
Items not affecting cash:
Stock based expense	566	506
Depreciation and amortization	1,805	2,538
Accretion of asset retirement obligation	252	266
Amortization of deferred loan costs	60	60
Provision for reclamation		(6)
Gain on monetization of contract	(3,540)
Gain on disposition of assets	(2)
Gain on foreign exchange	(11)	18
Other loss	5
Change in non-cash working capital items:
Accounts receivable	(4)	2
Inventory	(5,289)	(3,342)
Prepaid expenses	(186)	(45)
Accounts payable and accrued liabilities	(252)	235
Net Cash Provided by (Used in) Operating Activities, Total	2,413	6,737
Investing activities
Mineral property costs	(15)	(6)
Proceeds from monetization of contract	3,540
Funding of equity investment	(4)
Purchase of capital assets	(44)	(107)
Net Cash Provided by (Used in) Investing Activities, Total	3,477	(113)
Financing activities
Issuance of common shares for cash		1,169
Share issue costs	(4)	(43)
Proceeds from exercise of stock options	113	348
RSUs redeemed to pay withholding or paid in cash	(13)	(52)
Repayment of debt	(2,413)	(2,279)
Net Cash Provided by (Used in) Financing Activities, Total	(2,317)	(857)
Effects of foreign exchange rate changes on cash	(21)	1
Net change in cash, cash equivalents and restricted cash	3,552	5,768
Beginning cash, cash equivalents and restricted cash	11,437
Ending cash, cash equivalents and restricted cash (note 13)	$ 14,989	$ 14,877

Nature of Operations

Nature of Operations	6 Months Ended
	Jun. 30, 2018
Nature of Operations [Abstract]
Nature of operations	1. Ur-Energy Inc. (the “Company”) was incorporated on March 22, 2004 under the laws of the Province of Ontario. The Company was continued under the Canada Business Corporations Act on August 8, 2006. Headquartered in Littleton, Colorado, the Company is an exploration stage mining company, as defined by U.S. 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 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, ” 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.

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2018
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Basis of presentation These unaudited interim consolidated financial statements do not conform in all respects to the requirements of United States generally accepted accounting principles (“US GAAP”) for annual financial statements. The unaudited interim financial statements reflect all normal adjustments which in the opinion of management are necessary for a fair statement of the results for the periods presented. These unaudited interim consolidated financial statements should be read in conjunction with the audited annual consolidated financial statements for the year ended December 31, 2017. We apply the same accounting policies as in the prior year other than as noted below. The year-end balance sheet data were derived from the audited financial statements and certain information and footnote disclosures required by US GAAP have been condensed or omitted. 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 on the balance sheet, 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. As at June 30, 2018, the Company’s only leases are for vehicles, equipment, and office space in one location. 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 point of transfer of control so 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, which, electing the retrospective basis for implementing the standard, results in no changes to prior financial reporting. 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. 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	6 Months Ended
	Jun. 30, 2018
Cash and Cash Equivalents [Abstract]
Cash and Cash Equivalents	3. The Company’s cash and cash equivalents consist of the following: As at June 30, 2018 December 31, 2017 $ $ Cash on deposit at banks 2,649 1,667 Money market funds 4,881 2,212 7,530 3,879

Inventory

Inventory	6 Months Ended
	Jun. 30, 2018
Inventory [Abstract]
Inventory	4. Inventory The Company’s inventory consists of the following: As at June 30, 2018 December 31, 2017 $ $ In-process inventory 518 315 Plant inventory 548 369 Conversion facility inventory 8,738 3,831 9,804 4,515 The Company’s classification of its inventory as either short or In conjunction with our lower of cost or net realizable value calculations, the Company reduced the inventory valuation by $98 for the six months ended June 30, 2018.

Restricted Cash

Restricted Cash	6 Months Ended
	Jun. 30, 2018
Restricted Cash [Abstract]
Restricted cash	5. Restricted Cash The Company’s restricted cash consists of the following: As at June 30, 2018 December 31, 2017 $ $ Money market account 7,459 7,458 Certificates of deposit - 100 7,459 7,558 The bonding requirements for reclamation obligations on various properties have been agreed to by the Wyoming Department of Environmental Quality (“WDEQ”), the Bureau of Land Management (“BLM”) and the Nuclear Regulatory Commission (“NRC”) as applicable. 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 $27.1 million of coverage towards specific reclamation obligations are collateralized by $7.4 million of the restricted cash at June 30, 2018.

Mineral Properties

Mineral Properties	6 Months Ended
	Jun. 30, 2018
Mineral Properties [Abstract]
Mineral Properties	6 . Mineral Properties The Company’s mineral properties consist of the following: Lost Creek Pathfinder Other U.S. Property Mines Properties Total $ $ $ $ Balance, December 31, 2017 11,810 19,701 13,166 44,677 Acquisition costs - - 31 31 Change in estimated reclamation costs (note 10) 34 - 34 Amortization (871) - - (871) Balance, June 30, 2018 10,973 19,701 13,197 43,871 Lost Creek Property The Company acquired certain Wyoming properties in 2005 when Ur-Energy USA Inc. 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. Currently, there are no royalties on the mining claims in the Lost Creek, LC North or LC West Projects. Pathfinder Mines 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 . At June 30, 2016, the royalty expired and was terminated.

Capital Assets

Capital Assets	6 Months Ended
	Jun. 30, 2018
Capital Assets
Capital Assets	7. The Company’s capital assets consist of the following: As of As of June 30, 2018 December 31, 2017 Accumulated Net Book Accumulated Net Book Cost Depreciation Value Cost Depreciation Value $ $ $ $ $ $ Rolling stock 3,432 3,239 193 3,388 3,184 204 Enclosures 32,991 7,705 25,286 32,991 6,880 26,111 Machinery and equipment 1,237 696 541 1,237 663 574 Furniture, fixtures and leasehold improvements 119 107 12 119 104 15 Information technology 1,121 1,081 40 1,120 1,063 57 38,900 12,828 26,072 38,855 11,894 26,961

Accounts Payable and Accrued Li

Accounts Payable and Accrued Liabilities	6 Months Ended
	Jun. 30, 2018
Accounts Payable and Accrued Liabilities [Abstract]
Accounts Payable and Accrued Liabilities	8. Accounts payable and accrued liabilities consist of the following: As at June 30, 2018 December 31, 2017 $ $ Accounts payable 642 840 Payroll and other taxes 1,317 1,224 Severance and ad valorem tax payable 695 975 2,654 3,039

Notes Payable

Notes Payable	6 Months Ended
	Jun. 30, 2018
Notes Payable [Abstract]
Notes Payable	9. 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 financing. Those fees amortizable within 12 months of June 30, 2018 are considered current. The following table lists the current (within 12 months) and long term portion of the Company’s debt instrument: As at June 30, 2018 December 31, 2017 $ $ Current debt Sweetwater County Loan 5,037 4,895 Less deferred financing costs (121) (121) 4,916 4,774 Long term debt Sweetwater County Loan 12,441 14,996 Less deferred financing costs (274) (334) 12,167 14,662 Schedule of payments on outstanding debt as of June 30, 2018: Debt Total 2018 2019 2020 2021 Maturity $ $ $ $ $ Sweetwater County Loan Principal 17,478 2,482 5,183 5,487 4,326 01-Oct-21 Interest 1,809 485 752 447 125 Total 19,287 2,967 5,935 5,934 4,451

Asset Retirement Obligations

Asset Retirement Obligations	6 Months Ended
	Jun. 30, 2018
Asset Retirement Obligations [Abstract]
Asset Retirement and Reclamation Obligations	10. Asset retirement obligations ("ARO") relate to the Lost Creek mine and Pathfinder projects and 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 discounted at a risk-free rate. Included in this liability are the costs of closure, reclamation, demolition and stabilization of the mines, processing plants, infrastructure, aquifer restoration, waste dumps and ongoing post-closure environmental monitoring and maintenance costs. At June 30, 2018, the total undiscounted amount of the future cash needs was estimated to be $27.0 million. The schedule of payments required to settle the ARO liability extends through 2033. The restricted cash as discussed in note 5 is related to the surety bonds which provide security to the governmental agencies on these obligations. For the period ended June 30, 2018 December 31, 2017 $ $ Beginning of period 27,036 26,061 Change in estimated liability 34 448 Accretion expense 252 527 End of period 27,322 27,036

Shareholders' Equity and Capita

Shareholders' Equity and Capital Stock	6 Months Ended
	Jun. 30, 2018
Shareholders' Equity and Capital Stock [Abstract]
Shareholders' Equity and Capital Stock	11. Stock options In 2005, the Company’s Board of Directors approved the adoption of the Company's stock option plan (the “Option Plan”). The Option Plan was most recently approved by the shareholders, including certain amendments, on May 18, 2017. Eligible participants under the Option Plan include directors, officers, employees and consultants of the Company. Under the terms of the Option Plan, stock options granted prior to the May 2017 amendment generally vest with Option Plan participants as follows: 10% at the date of grant; 22% four and one-half months after grant; 22% nine months after grant; 22% thirteen and one-half months after grant; and the balance of 24% eighteen months after the date of grant. Following the May 2017 amendment of the Option Plan, future 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, 2017 9,459,401 0.70 Granted 200,000 0.60 Exercised (183,891) 0.61 Forfeited (184,548) 0.74 Expired (336,060) 0.59 Outstanding, June 30, 2018 8,954,902 0.67 The exercise price of a new grant is set at the closing price for the shares 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 six months ended June 30, 2018 was $0.5 million. As of June 30, 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 $ $ $ 0.94 0.1 - 0.1 - 01-Aug-18 0.91 0.5 - 0.5 - 27-Dec-18 1.28 0.8 - 0.8 - 31-Mar-19 0.77 1.5 - 1.5 - 12-Dec-19 0.87 1.9 - 1.9 - 29-May-20 0.65 2.1 16 2.1 16 17-Aug-20 0.61 2.5 61 2.5 61 11-Dec-20 0.55 3.5 298 3.5 298 16-Dec-21 0.77 3.7 - 3.7 - 02-Mar-22 0.55 4.2 22 - - 07-Sep-22 0.68 4.5 4.5 15-Dec-22 0.58 4.7 17 - - 30-Mar-23 0.67 3.0 414 2.5 375 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 Cdn$0.89 as of the last trading day in the period ended June 30, 2018, that would have been received by the option holders had they exercised their options as of that date. The total number of in-the-money stock options outstanding as of June 30, 2018 was 4,694,331. The total number of in-the-money stock options exercisable as of June 30, 2018 was 4,294,331. We elect to estimate the number of awards expected to vest in lieu of accounting for forfeitures when they occur. 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 by our shareholders most recently on May 5, 2016. Eligible participants under the RSU Plan include directors and employees of the Company. RSUs in a grant redeem on the second anniversary of the grant. 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, 2017 1,175,952 0.65 Vested (80,514) 0.63 Forfeited (12,434) 0.63 Unvested, June 30, 2018 1,083,004 0.61 As of June 30, 2018, outstanding RSUs are as follows: Number of Remaining Aggregate unvested life intrinsic Grant date RSUs (years) value $ December 16, 2016 584,096 0.46 397 December 15, 2017 498,908 1.46 339 1,083,004 0.95 736 As of March 30, 2018, one of our directors retired. Under the terms of our RSU Plan, his 62,000 outstanding RSUs automatically vest. The compensation committee will determine if he will receive stock or cash for the units redeemed in accordance with the redemption dates as set forth in the Plan. Warrants The following represents warrant activity during the period ended June 30, 2018: Number Weighted- of average warrants exercise price $ Outstanding, December 31, 2017 5,844,567 0.97 Expired (4,294,167) 0.94 Outstanding, June 30, 2018 1,550,400 0.95 As of June 30, 2018, outstanding warrants are as follows: Remaining Aggregate Exercise Number contractual Intrinsic price of warrants life (years) Value Expiry $ $ 0.95 0.2 - 27-Aug-18 0.95 0.2 - Share-based compensation expense Share-based compensation expense was $0.4 million and $0.6 million for the three and six months ended June 30, 2018 and $0.4 million and $0.7 million for the three and six months ended June 30, 2017, respectively. As of June 30, 2018, there was approximately $0.7 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 $0.4 million under the RSU Plan. The expenses are expected to be recognized over a weighted-average period of 2.4 years and 1.2 years, respectively. Cash received from stock options exercised totaled $0.1 million for the three and six months ended June 30, 2018 and $Nil and $0.3 million for the three and six months ended June 30, 2017, respectively. Fair value calculations The initial fair value of options and RSUs granted is determined using the Black-Scholes option pricing model for options and the intrinsic pricing model for RSUs. There were no RSUs granted in either the six months ended June 30, 2018 or the six months ended June 30, 2017. The assumptions used for the options granted during the six months ended June 30, 2018 and June 30, 2017 were as follows: Six months ended June 30, Six months ended June 30, 2018 2017 Expected option life (years) 3.74 3.70 Expected volatility 54.59% 57.45% Risk-free interest rate 1.90% 1.00% Expected dividend rate 0% 0% Forfeiture rate 6.0% 5.4% 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.

Sales

Sales	6 Months Ended
	Jun. 30, 2018
Revenue [Abstract]
Sales	12. Sales Sales have been derived from U 3 O 8 being sold to domestic utilities, primarily under term contracts, as well as to a trader through spot sales. Disaggregation of Revenues The following table presents our revenues disaggregated by revenue source and type of revenue for each revenue source: Sales consist of: Six months ended June 30, 2018 2017 $ $ Sale of produced inventory Company A 237 - Company B - 3,141 Company C - 1,777 237 4,918 Sales of purchased inventory Company C 15,636 15,340 Company B 7,580 6,358 23,216 21,698 Total sales 23,453 26,616 Disposal fee income 26 33 23,479 26,649 The names of the individual companies have not been disclosed for reasons of confidentiality.

Supplementary Information For S

Supplementary Information For Statement of Cash Flows	6 Months Ended
	Jun. 30, 2018
Supplementary Information For Statement of Cash Flows
Supplementary Information For Statement of Cash Flows	13. Cash per the Statement of Cash Flows consists of the following: As at June 30, 2018 June 30, 2017 $ $ Cash and cash equivalents 7,530 7,320 Restricted cash 7,459 7,557 14,989 14,877

Financial instruments

Financial instruments	6 Months Ended
	Jun. 30, 2018
Financial instruments [Abstract]
Financial instruments	14. 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 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 deposit, money market accounts and demand deposits. These instruments are maintained at financial institutions in Canada and the U.S. 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 U.S. Federal Deposit Insurance Corporation, leaving approximately $14.3 million at risk at June 30, 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 June 30, 2018. All of the Company’s customers have Moody’s Baa or greater ratings and purchase from the Company under contracts with set prices and payment terms. Liquidity risk Liquidity risk is the risk that the Company will not be able to meet its financial obligations as they come due. As at June 30, 2018, the Company’s financial liabilities consisted of trade accounts payable and accrued trade and payroll liabilities of $1.1 million which are due within normal trade terms of generally 30 to 60 days and a note payable which will be payable over a period of approximately three years. On May 27, 2016, we entered into an At Market Issuance Sales Agreement with MLV & Co. LLC and B Riley FBR, Inc., 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. We have not used the facility in 2018. During 2017, we sold 1,536,169 Common Shares under the sales agreement at an average price of $0.76 per share for gross proceeds of $1.2 million. After deducting transaction fees and commissions we received net proceeds of $1.1 million. In 2018, we paid additional fees for the renewal of the agreement. We expect that any major capital projects will be funded by operating cash flow, cash on hand or additional financing as required. If these cash sources are not sufficient, certain capital projects could be delayed, or alternatively we may need to pursue additional debt or equity financing to which there is no assurance that such financing will be available at all or on terms acceptable to us. 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 a negligible effect on either the six months ended June 30, 2018 or the comparable six months in 2017. 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.

Summary of Significant Accoun22

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2018
Summary of Significant Accounting Policies [Abstract]
Basis of presentation	Basis of presentation These unaudited interim consolidated financial statements do not conform in all respects to the requirements of United States generally accepted accounting principles (“US GAAP”) for annual financial statements. The unaudited interim financial statements reflect all normal adjustments which in the opinion of management are necessary for a fair statement of the results for the periods presented. These unaudited interim consolidated financial statements should be read in conjunction with the audited annual consolidated financial statements for the year ended December 31, 2017. We apply the same accounting policies as in the prior year other than as noted below. The year-end balance sheet data were derived from the audited financial statements and certain information and footnote disclosures required by US GAAP have been condensed or omitted.
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 on the balance sheet, 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. As at June 30, 2018, the Company’s only leases are for vehicles, equipment, and office space in one location. 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 point of transfer of control so 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, which, electing the retrospective basis for implementing the standard, results in no changes to prior financial reporting. 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. 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)	6 Months Ended
	Jun. 30, 2018
Cash and Cash Equivalents [Abstract]
Schedule Of Cash and Cash Equivalents	As at June 30, 2018 December 31, 2017 $ $ Cash on deposit at banks 2,649 1,667 Money market funds 4,881 2,212 7,530 3,879

Inventory (Tables)

Inventory (Tables)	6 Months Ended
	Jun. 30, 2018
Inventory [Abstract]
Schedule of Inventory, Current	As at June 30, 2018 December 31, 2017 $ $ In-process inventory 518 315 Plant inventory 548 369 Conversion facility inventory 8,738 3,831 9,804 4,515

Restricted Cash (Tables)

Restricted Cash (Tables)	6 Months Ended
	Jun. 30, 2018
Restricted Cash [Abstract]
Schedule of Restricted Cash and Cash Equivalents	As at June 30, 2018 December 31, 2017 $ $ Money market account 7,459 7,458 Certificates of deposit - 100 7,459 7,558

Mineral Properties (Tables)

Mineral Properties (Tables)	6 Months Ended
	Jun. 30, 2018
Mineral Properties [Abstract]
Mineral Property	Lost Creek Pathfinder Other U.S. Property Mines Properties Total $ $ $ $ Balance, December 31, 2017 11,810 19,701 13,166 44,677 Acquisition costs - - 31 31 Change in estimated reclamation costs (note 10) 34 - 34 Amortization (871) - - (871) Balance, June 30, 2018 10,973 19,701 13,197 43,871

Capital Assets (Tables)

Capital Assets (Tables)	6 Months Ended
	Jun. 30, 2018
Capital Assets
Capital assets	As of As of June 30, 2018 December 31, 2017 Accumulated Net Book Accumulated Net Book Cost Depreciation Value Cost Depreciation Value $ $ $ $ $ $ Rolling stock 3,432 3,239 193 3,388 3,184 204 Enclosures 32,991 7,705 25,286 32,991 6,880 26,111 Machinery and equipment 1,237 696 541 1,237 663 574 Furniture, fixtures and leasehold improvements 119 107 12 119 104 15 Information technology 1,121 1,081 40 1,120 1,063 57 38,900 12,828 26,072 38,855 11,894 26,961

Accounts Payable and Accrued 28

Accounts Payable and Accrued Liabilities (Tables)	6 Months Ended
	Jun. 30, 2018
Accounts Payable and Accrued Liabilities [Abstract]
Schedule of Accounts Payable and Accrued Liabilities	As at June 30, 2018 December 31, 2017 $ $ Accounts payable 642 840 Payroll and other taxes 1,317 1,224 Severance and ad valorem tax payable 695 975 2,654 3,039

Notes Payable (Tables)

Notes Payable (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Payable [Abstract]
Schedule of Debt	As at June 30, 2018 December 31, 2017 $ $ Current debt Sweetwater County Loan 5,037 4,895 Less deferred financing costs (121) (121) 4,916 4,774 Long term debt Sweetwater County Loan 12,441 14,996 Less deferred financing costs (274) (334) 12,167 14,662
Schedule Of Outstanding Debt	Debt Total 2018 2019 2020 2021 Maturity $ $ $ $ $ Sweetwater County Loan Principal 17,478 2,482 5,183 5,487 4,326 01-Oct-21 Interest 1,809 485 752 447 125 Total 19,287 2,967 5,935 5,934 4,451

Asset Retirement Obligations (T

Asset Retirement Obligations (Tables)	6 Months Ended
	Jun. 30, 2018
Asset Retirement Obligations [Abstract]
Schedule of Asset Retirement Obligations	For the period ended June 30, 2018 December 31, 2017 $ $ Beginning of period 27,036 26,061 Change in estimated liability 34 448 Accretion expense 252 527 End of period 27,322 27,036

Shareholders' Equity and Capi31

Shareholders' Equity and Capital Stock (Tables)	6 Months Ended
	Jun. 30, 2018
Shareholders' Equity and Capital Stock [Abstract]
Schedule of Share-based Compensation, Stock Options, Activity	Weighted- average Options exercise price # $ Balance, December 31, 2017 9,459,401 0.70 Granted 200,000 0.60 Exercised (183,891) 0.61 Forfeited (184,548) 0.74 Expired (336,060) 0.59 Outstanding, June 30, 2018 8,954,902 0.67
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 $ $ $ 0.94 0.1 - 0.1 - 01-Aug-18 0.91 0.5 - 0.5 - 27-Dec-18 1.28 0.8 - 0.8 - 31-Mar-19 0.77 1.5 - 1.5 - 12-Dec-19 0.87 1.9 - 1.9 - 29-May-20 0.65 2.1 16 2.1 16 17-Aug-20 0.61 2.5 61 2.5 61 11-Dec-20 0.55 3.5 298 3.5 298 16-Dec-21 0.77 3.7 - 3.7 - 02-Mar-22 0.55 4.2 22 - - 07-Sep-22 0.68 4.5 4.5 15-Dec-22 0.58 4.7 17 - - 30-Mar-23 0.67 3.0 414 2.5 375
Schedule of Share-based Compensation, Restricted Stock Units Award Activity	Number Weighted of average grant RSUs date fair value $ Unvested, December 31, 2017 1,175,952 0.65 Vested (80,514) 0.63 Forfeited (12,434) 0.63 Unvested, June 30, 2018 1,083,004 0.61
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 16, 2016 584,096 0.46 397 December 15, 2017 498,908 1.46 339 1,083,004 0.95 736
Schedule Of Share-Based Compensation, Warrants, Activity	Number Weighted- of average warrants exercise price $ Outstanding, December 31, 2017 5,844,567 0.97 Expired (4,294,167) 0.94 Outstanding, June 30, 2018 1,550,400 0.95
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 $ $ 0.95 0.2 - 27-Aug-18 0.95 0.2 -
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	Six months ended June 30, Six months ended June 30, 2018 2017 Expected option life (years) 3.74 3.70 Expected volatility 54.59% 57.45% Risk-free interest rate 1.90% 1.00% Expected dividend rate 0% 0% Forfeiture rate 6.0% 5.4%

Sales (Tables)

Sales (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue [Abstract]
Schedule Of Revenue	Six months ended June 30, 2018 2017 $ $ Sale of produced inventory Company A 237 - Company B - 3,141 Company C - 1,777 237 4,918 Sales of purchased inventory Company C 15,636 15,340 Company B 7,580 6,358 23,216 21,698 Total sales 23,453 26,616 Disposal fee income 26 33 23,479 26,649

Supplementary Information For33

Supplementary Information For Statement of Cash Flows (Tables)	6 Months Ended
	Jun. 30, 2018
Supplementary Information For Statement of Cash Flows
Cash per the Statement of Cash Flows	As at June 30, 2018 June 30, 2017 $ $ Cash and cash equivalents 7,530 7,320 Restricted cash 7,459 7,557 14,989 14,877

Nature of Operations (Details)

Nature of Operations (Details)	6 Months Ended
	Jun. 30, 2018
Nature of Operations [Abstract]
Date of incorporation	Mar. 22, 2004

Summary of Significant Accoun35

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Summary of Significant Accounting Policies [Abstract]
Restricted cash	$ 7,459	$ 7,558	$ 7,557

Cash and Cash Equivalents (Deta

Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Cash and Cash Equivalents [Abstract]
Cash on deposit at banks	$ 2,649	$ 1,667
Money market funds	4,881	2,212
Cash and cash equivalents	$ 7,530	$ 3,879	$ 7,320

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Inventory
Inventory, Net, Total		$ 4,515
Inventory, Noncurrent	$ 9,804
Reduction in inventory valuation	98
In Process Inventory [Member]
Inventory
Inventory, Net, Total		315
Inventory, Noncurrent	518
Plant Inventory [Member]
Inventory
Inventory, Net, Total		369
Inventory, Noncurrent	548
Conversion Facility Inventory [Member]
Inventory
Inventory, Net, Total		$ 3,831
Inventory, Noncurrent	$ 8,738

Restricted Cash (Details)

Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Restricted Cash
Restricted cash	$ 7,459	$ 7,558	$ 7,557
Surety Bond [Member]
Restricted Cash
Reclamation bonding requirement	27,100
Certificate of deposit [Member]
Restricted Cash
Restricted cash		100
Money Market Funds [Member]
Restricted Cash
Restricted cash	7,459	$ 7,458
Money Market Funds [Member] | Surety Bond [Member]
Restricted Cash
Restricted cash pledged as collateral	$ 7,400

Mineral Properties - rollforwar

Mineral Properties - rollforward (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Balance at beginning of period	$ 44,677
Acquisition costs	31
Increase in reclamation costs	34
Change in estimated reclamation costs (Note 13)	34	$ 448
Amortization	(871)
Balance at end of period	43,871	44,677
Lost Creek Property
Balance at beginning of period	11,810
Increase in reclamation costs	34
Amortization	(871)
Balance at end of period	10,973	11,810
Path Finder Mines [Member]
Balance at beginning of period	19,701
Balance at end of period	19,701	19,701
Other U.S. Properties [Member]
Balance at beginning of period	13,166
Acquisition costs	31
Balance at end of period	$ 13,197	$ 13,166

Mineral Properties (Details)

Mineral Properties (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2005
Aggregate consideration	$ 6.7
Royalty (as a percent)	5.00%
Estimated asset reclamation obligation	$ 5.7
Nfu Wyoming LLC
Percentage of asset acquired		100.00%
Aggregate consideration		$ 20

Capital Assets (Details)

Capital Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Capital Assets
Cost	$ 38,900	$ 38,855
Accumulated Depreciation	12,828	11,894
Net Book Value	26,072	26,961
Rolling stock [Member]
Capital Assets
Cost	3,432	3,388
Accumulated Depreciation	3,239	3,184
Net Book Value	193	204
Building Enclosures [Member]
Capital Assets
Cost	32,991	32,991
Accumulated Depreciation	7,705	6,880
Net Book Value	25,286	26,111
Machinery and equipment [Member]
Capital Assets
Cost	1,237	1,237
Accumulated Depreciation	696	663
Net Book Value	541	574
Furniture, fixtures and leasehold improvements [Member]
Capital Assets
Cost	119	119
Accumulated Depreciation	107	104
Net Book Value	12	15
Information technology [Member]
Capital Assets
Cost	1,121	1,120
Accumulated Depreciation	1,081	1,063
Net Book Value	$ 40	$ 57

Accounts Payable and Accrued 42

Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Accounts Payable and Accrued Liabilities [Abstract]
Accounts payable	$ 642	$ 840
Severance and ad valorem tax payable	1,317	1,224
Payroll and other taxes	695	975
Accounts payable and accrued liabilities	$ 2,654	$ 3,039

Notes Payable - Current vs Long

Notes Payable - Current vs Long-term (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current debt
Less deferred financing costs	$ (121)	$ (121)
Long-term Debt, Current Maturities, Total	4,916	4,774
Long term debt
Less deferred financing costs	(274)	(334)
Long-term Debt	12,167	14,662
Sweetwater IDR Bond [Member]
Current debt
Current Debt	5,037	4,895
Long term debt
Long term debt	$ 12,441	$ 14,996

Notes Payable - Maturity table

Notes Payable - Maturity table (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Notes Payable
Total	$ 19,287
Sweetwater IDR Bond [Member]
Notes Payable
Principal	17,478
Interest	1,809
2,017
Notes Payable
Total	2,967
2017 | Sweetwater IDR Bond [Member]
Notes Payable
Principal	2,482
Interest	485
2,018
Notes Payable
Total	5,935
2018 | Sweetwater IDR Bond [Member]
Notes Payable
Principal	5,183
Interest	752
2,019
Notes Payable
Total	5,934
2019 | Sweetwater IDR Bond [Member]
Notes Payable
Principal	5,487
Interest	447
2,020
Notes Payable
Total	4,451
2020 | Sweetwater IDR Bond [Member]
Notes Payable
Principal	4,326
Interest	$ 125

Notes Payable (Details)

Notes Payable (Details) $ / shares in Units, $ in Thousands	Oct. 15, 2013USD ($)	Jun. 30, 2018USD ($)$ / shares	Dec. 31, 2017$ / shares	Oct. 23, 2013item
Notes Payable
Class Of Warrant Or Right, Exercise Price Of Warrants Or Rights | $ / shares		$ 0.95	$ 0.97
Sweetwater IDR Bond [Member]
Notes Payable
Proceeds from Issuance of Long-term Debt	$ 34,000
Periodic payment amount		$ 17,478
Due Quarterly Commencing From January 1, 2014 [Member] | Sweetwater IDR Bond [Member]
Notes Payable
Fixed interest rate (as a percent)				5.75%
Due Quarterly Commencing From January 1, 2015 [Member] | Sweetwater IDR Bond [Member]
Notes Payable
Number of installments | item				28

Asset Retirement Obligations (D

Asset Retirement Obligations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Asset Retirement Obligation Rollforward
Estimated Future Cash Undiscounted Amount	$ 27,000		$ 27,000
Beginning of year			27,036	$ 26,061	$ 26,061
Change in estimated liability			34		448
Accretion expense	126	$ 134	252	$ 266	527
End of year	$ 27,322		$ 27,322		$ 27,036

Shareholders' Equity and Capi47

Shareholders' Equity and Capital Stock - options activity (Details)	6 Months Ended
	Jun. 30, 2018$ / sharesshares
Options Rollforward
Outstanding, Beginning Balance | shares	9,459,401
Granted, Options | shares	200,000
Exercised, Options | shares	(183,891)
Forfeited, Options | shares	(184,548)
Expired, Options | shares	(336,060)
Outstanding Ending Balance, Options | shares	8,954,902
Outstanding, Beginning Balance, Weighted-average exercise price	$ 0.70
Granted, Weighted-average exercise price	0.60
Exercised, Weighted-average exercise price	0.61
Forfeited, Weighted-average exercise price	0.74
Expired, Weighted-average exercise price	0.59
Outstanding Ending Balance, Weighted-average exercise price	0.67
Grant date intrinsic value	$ 0

Shareholders' Equity and Capi48

Shareholders' Equity and Capital Stock - o/s options (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Outstanding Stock Options
Exercise price	$ 0.67	$ 0.70
Number of options, Outstanding	8,954,902	9,459,401
Weighted- average remaining contractual life (years), Outstanding	3 years
Aggregate Intrinsic Value, Outstanding	$ 414
Number of options, Exercisable	6,487,254
Weighted- average remaining contractual life (years), Exercisable	2 years 6 months
Aggregate Intrinsic Value, Exercisable	$ 375
Exercise price $0.96
Outstanding Stock Options
Exercise price	$ 0.94
Number of options, Outstanding	100,000
Weighted- average remaining contractual life (years), Outstanding	1 month 6 days
Number of options, Exercisable	100,000
Weighted- average remaining contractual life (years), Exercisable	1 month 6 days
Expiry	Aug. 1, 2018
Exercise price $0.93
Outstanding Stock Options
Exercise price	$ 0.91
Number of options, Outstanding	702,761
Weighted- average remaining contractual life (years), Outstanding	6 months
Number of options, Exercisable	702,761
Weighted- average remaining contractual life (years), Exercisable	6 months
Expiry	Dec. 27, 2018
Exercise price $1.30
Outstanding Stock Options
Exercise price	$ 1.28
Number of options, Outstanding	100,000
Weighted- average remaining contractual life (years), Outstanding	9 months 18 days
Number of options, Exercisable	100,000
Weighted- average remaining contractual life (years), Exercisable	9 months 18 days
Expiry	Mar. 31, 2019
Exercise price $0.79
Outstanding Stock Options
Exercise price	$ 0.77
Number of options, Outstanding	742,162
Weighted- average remaining contractual life (years), Outstanding	1 year 6 months
Number of options, Exercisable	742,162
Weighted- average remaining contractual life (years), Exercisable	1 year 6 months
Expiry	Dec. 12, 2019
Exercise price $0.88
Outstanding Stock Options
Exercise price	$ 0.87
Number of options, Outstanding	200,000
Weighted- average remaining contractual life (years), Outstanding	1 year 10 months 24 days
Number of options, Exercisable	200,000
Weighted- average remaining contractual life (years), Exercisable	1 year 10 months 24 days
Expiry	May 29, 2020
Exercise price $0.67
Outstanding Stock Options
Exercise price	$ 0.65
Number of options, Outstanding	604,782
Weighted- average remaining contractual life (years), Outstanding	2 years 1 month 6 days
Aggregate Intrinsic Value, Outstanding	$ 16
Number of options, Exercisable	604,782
Weighted- average remaining contractual life (years), Exercisable	2 years 1 month 6 days
Aggregate Intrinsic Value, Exercisable	$ 16
Expiry	Aug. 17, 2020
Exercise price $0.62
Outstanding Stock Options
Exercise price	$ 0.61
Number of options, Outstanding	1,021,690
Weighted- average remaining contractual life (years), Outstanding	2 years 6 months
Aggregate Intrinsic Value, Outstanding	$ 61
Number of options, Exercisable	1,021,690
Weighted- average remaining contractual life (years), Exercisable	2 years 6 months
Aggregate Intrinsic Value, Exercisable	$ 61
Expiry	Dec. 11, 2020
Exercise price $0.57
Outstanding Stock Options
Exercise price	$ 0.55
Number of options, Outstanding	2,667,859
Weighted- average remaining contractual life (years), Outstanding	3 years 6 months
Aggregate Intrinsic Value, Outstanding	$ 298
Number of options, Exercisable	2,667,859
Weighted- average remaining contractual life (years), Exercisable	3 years 6 months
Aggregate Intrinsic Value, Exercisable	$ 298
Expiry	Dec. 16, 2021
Exercise price $0.79
Outstanding Stock Options
Exercise price	$ 0.77
Number of options, Outstanding	300,000
Weighted- average remaining contractual life (years), Outstanding	3 years 8 months 12 days
Number of options, Exercisable	228,000
Weighted- average remaining contractual life (years), Exercisable	3 years 8 months 12 days
Expiry	Mar. 2, 2022
Exercise price $0.57
Outstanding Stock Options
Exercise price	$ 0.55
Number of options, Outstanding	200,000
Weighted- average remaining contractual life (years), Outstanding	4 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding	$ 22
Expiry	Sep. 7, 2022
Exercise Price $0.70
Outstanding Stock Options
Exercise price	$ 0.68
Number of options, Outstanding	2,115,648
Weighted- average remaining contractual life (years), Outstanding	4 years 6 months
Number of options, Exercisable	120,000
Weighted- average remaining contractual life (years), Exercisable	4 years 6 months
Expiry	Dec. 15, 2022
Exercise Price $0.60
Outstanding Stock Options
Exercise price	$ 0.58
Number of options, Outstanding	200,000
Weighted- average remaining contractual life (years), Outstanding	4 years 8 months 12 days
Aggregate Intrinsic Value, Outstanding	$ 17
Expiry	Mar. 30, 2023

Shareholders' Equity and Capi49

Shareholders' Equity and Capital Stock - RSU activity (Details)	6 Months Ended
	Jun. 30, 2018$ / sharesshares
RSU Rollforward
Number of RSUs Unvested, Beginning Balance | shares	1,175,952
Number of RSUs Vested | shares	(80,514)
Number of RSUs Forfeited | shares	(12,434)
Number of RSUs Unvested, Ending Balance | shares	1,083,004
Number of RSUs Unvested, Beginning Balance, Weighted average grant date fair value | $ / shares	$ 0.65
Vested, Weighted average grant date fair value | $ / shares	0.63
Forfeited, Weighted average grant date fair value | $ / shares	0.63
Number of RSUs Unvested, Ending Balance, Weighted Average Grant Date Fair Value | $ / shares	$ 0.61

Shareholders' Equity and Capi50

Shareholders' Equity and Capital Stock - o/s RSUs (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
RSUs
Number of unvested units	1,083,004	1,175,952
Remaining life (years)	11 months 12 days
Aggregate Intrinsic Value	$ 736
December 16, 2016
RSUs
Number of unvested units	584,096
Remaining life (years)	5 months 16 days
Aggregate Intrinsic Value	$ 397
December 15, 2017
RSUs
Number of unvested units	498,908
Remaining life (years)	1 year 5 months 16 days
Aggregate Intrinsic Value	$ 339

Shareholders' Equity and Capi51

Shareholders' Equity and Capital Stock - warrants activity (Details)	6 Months Ended
	Jun. 30, 2018$ / sharesshares
Shareholders' Equity and Capital Stock [Abstract]
Outstanding Beginning Balance, Warrants | shares	5,844,567
Cancelled, Warrants | shares	(4,294,167)
Outstanding Ending Balance, Warrants | shares	1,550,400
Outstanding Beginning Balance, Weighted-average exercise price | $ / shares	$ 0.97
Cancelled, Weighted-average exercise price | $ / shares	0.94
Outstanding Ending Balance, Weighted-average exercise price | $ / shares	$ 0.95

Shareholders' Equity and Capi52

Shareholders' Equity and Capital Stock - o/s warrants (Details) - $ / shares	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Class of Warrant or Right
Exercise price	$ 0.95	$ 0.97
Number of warrants	1,550,400	5,844,567
$0.95 [Member]
Class of Warrant or Right
Exercise price	$ 0.95
Number of warrants	1,550,400
Remaining contractual life (years)	2 months 12 days
Expiry	Aug. 27, 2018
$1.04 [Member]
Class of Warrant or Right
Exercise price	$ 0.95
Number of warrants	1,550,400
Remaining contractual life (years)	2 months 12 days

Shareholders' Equity and Capi53

Shareholders' Equity and Capital Stock - addl information (Details) $ / shares in Units, $ in Thousands	3 Months Ended					6 Months Ended
	Jun. 30, 2018USD ($)	Mar. 30, 2018shares	Jun. 30, 2017USD ($)	Mar. 31, 2017shares	Mar. 31, 2016shares	Jun. 30, 2018USD ($)shares	Jun. 30, 2017USD ($)	Jun. 30, 2018$ / shares	Jun. 30, 2018USD ($)$ / sharesshares	Dec. 31, 2017$ / sharesshares
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Intrinsic Value | $									$ 414
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period						183,891
Stock Issued During Period, Shares, New Issues						1,536,169
Share Price | (per share)								$ 0.89	$ 0.76
Payments Of Stock Issuance Costs | $						$ 4	$ 43
Number of RSUs Vested						80,514
Stock Issued During Period, Value, New Issues | $						$ (4)
Percent or RSUs that vest						80,514
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Number									8,954,902	9,459,401
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number									6,487,254
Stock based compensation | $	$ 400		$ 400			$ 566	506
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value | $						500
Proceeds from Stock Options Exercised | $						$ 113	$ 348
Granted, Options						200,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares									$ 0.95	$ 0.97
Capital Stock
Stockholder's Equity Note [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period						183,891,000
Stock Issued During Period, Value, New Issues | $						$ (4)
In Money Stock Option [Member]
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Number									4,694,331
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options | $									$ 700
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]
Number of RSUs Vested		62,000
Percent or RSUs that vest		62,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options | $									$ 400
Granted, Options				0	0
Restricted Stock Units (RSUs) [Member] | Capital Stock
Stockholder's Equity Note [Line Items]
Number of securities called by each unit									1
Grant Date [Member] | Employee Stock Option [Member]
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Percentage						10.00%
Four and One Half Months After Grant [Member] | Restricted Stock Units (RSUs) [Member]
Stockholder's Equity Note [Line Items]
Stock Option Vesting Period						4 months 15 days
Four and One Half Months After Grant [Member] | Employee Stock Option [Member]
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Percentage						22.00%
Nine Months After Grant [Member] | Employee Stock Option [Member]
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Percentage						22.00%
Thirteen and One Half Months After Grant [Member] | Restricted Stock Units (RSUs) [Member]
Stockholder's Equity Note [Line Items]
Stock Option Vesting Period						13 months 15 days
Thirteen and One Half Months After Grant [Member] | Employee Stock Option [Member]
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Percentage						22.00%
Eighteen Months After Date Of Grant [Member] | Employee Stock Option [Member]
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Percentage						24.00%
First Anniversary [Member]
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Percentage						33.30%
First Anniversary [Member] | Employee Stock Option [Member]
Stockholder's Equity Note [Line Items]
Stock Option Vesting Period						3 years
Second Anniversary [Member]
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Percentage						33.30%
Third Anniversary (Member)
Stockholder's Equity Note [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Percentage						33.40%

Shareholders' Equity and Capi54

Shareholders' Equity and Capital Stock - assumptions (Details)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
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 12 days
Expected volatility	54.59%
Expected dividend rate	0.00%
Risk-free interest rate, Minimum	1.90%	1.00%
Risk-free interest rate, Maximum	1.90%	1.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	55.00%	57.00%
Forfeiture rate (options)	6.00%	5.40%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected award life (in years)	3 years 8 months 27 days
Expected volatility	55.00%	57.00%
Risk-free interest rate	1.90%
Forfeiture rate (options)	6.00%	5.40%

Sales (Details)

Sales (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Sales
Revenue, Net, Total	$ 3,807	$ 11,821	$ 23,479	$ 26,649
Disposal fee income			26	33
Sales Revenue, Goods, Net [Member]
Sales
Sales Revenue, Goods, Net			237	4,918
Sale Of Purchased Inventory [Member]
Sales
Sales Revenue, Goods, Net			23,216	21,698
Company B [Member]
Sales
Sales Revenue, Goods, Net				3,141
Company B [Member] | Sale Of Purchased Inventory [Member]
Sales
Sales Revenue, Goods, Net			7,580	6,358
Company C [Member]
Sales
Sales Revenue, Goods, Net				1,777
Company C [Member] | Sale Of Purchased Inventory [Member]
Sales
Sales Revenue, Goods, Net			15,636	15,340
Company E [Member] | Sales Revenue, Goods, Net [Member]
Sales
Sales Revenue, Goods, Net			237
Company A, B, C, D [Member]
Sales
Sales Revenue, Goods, Net			$ 23,453	$ 26,616
Customer Concentration Risk [Member]
Sales
Concentration Risk, Percentage			100.00%	100.00%
Disposal Fees Concentration Risk Percentage			0.10%	0.10%
Customer Concentration Risk [Member] | Sales Revenue, Goods, Net [Member]
Sales
Concentration Risk, Percentage			1.00%	18.50%
Customer Concentration Risk [Member] | Sale Of Purchased Inventory [Member]
Sales
Concentration Risk, Percentage			98.90%	81.40%
Customer Concentration Risk [Member] | Company B [Member]
Sales
Concentration Risk, Percentage			0.00%	11.80%
Customer Concentration Risk [Member] | Company B [Member] | Sale Of Purchased Inventory [Member]
Sales
Concentration Risk, Percentage			32.30%	23.80%
Customer Concentration Risk [Member] | Company C [Member]
Sales
Concentration Risk, Percentage			0.00%	6.70%
Customer Concentration Risk [Member] | Company C [Member] | Sale Of Purchased Inventory [Member]
Sales
Concentration Risk, Percentage			66.60%	57.60%
Customer Concentration Risk [Member] | Company E [Member] | Sales Revenue, Goods, Net [Member]
Sales
Concentration Risk, Percentage			1.00%	0.00%
Customer Concentration Risk [Member] | Company A, B, C, D [Member]
Sales
Concentration Risk, Percentage			99.90%	99.90%

Supplementary Information For56

Supplementary Information For Statement of Cash Flows (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2015
Supplementary Information For Statement of Cash Flows
Cash and cash equivalents	$ 7,530	$ 3,879	$ 7,320
Restricted cash	7,459	7,558	7,557
Total	$ 14,989	$ 11,437	$ 14,877	$ 9,109

Financial instruments (Details)

Financial instruments (Details) - 6 months ended Jun. 30, 2018	USD ($)itemshares	$ / shares	USD ($)$ / shares
Financial Instruments
Cash, insured amount			$ 700,000
Sales agreement maximum sales proceeds of stock issuance and sales	$ 10,000,000
Common shares issued for cash, net of issue costs (in shares) | shares	1,536,169
Common shares issued value	$ (4,000)
Stock issuance costs	4,000
Share Price | (per share)		$ 0.89	$ 0.76
Proceeds from shares issued	$ 1,100,000
Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Change In Basis Points | item	100
Credit Concentration Risk
Financial Instruments
Cash, uninsured amount			$ 14,300,000
Minimum
Financial Instruments
Financial Liabilities Trade Terms Period	30 days
Minimum | Credit Availability Concentration Risk
Financial Instruments
Debt Instrument, Term	3 years
Maximum
Financial Instruments
Financial Liabilities Trade Terms Period	60 days
Capital Stock
Financial Instruments
Common shares issued value	$ (4,000)