Accumulated intangible asset amortization Finite-Lived Intangible Assets, Accumulated Amortization Loss Contingency, Cancellation Fee Ending Amount Loss Contingency, Cancellation Fee Ending Amount Loss Contingency, Cancellation Fee Ending Amount Deferred Tax Assets, Accrued Expenses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Repayment of borrowed SWU inventory [Member] Repayment of borrowed SWU inventory [Member] Repayment of borrowed SWU inventory Expected return on plan assets (gains) Defined Benefit Plan, Expected Return (Loss) on Plan Assets Schedule of Expected Benefit Payments [Table Text Block] Schedule of Expected Benefit Payments [Table Text Block] Award Timing Predetermined Award Timing Predetermined [Flag] Entity File Number Entity File Number Excess of Capital over Par Value [Member] Additional Paid-in Capital [Member] Tabular List, Table Tabular List [Table Text Block] Defined Benefit Plan, Plan Assets, Target Allocation, Percentage Defined Benefit Plan, Plan Assets, Target Allocation, Percentage New Accounting Pronouncements, Policy [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] Restricted Stock or Unit Expense Restricted Stock or Unit Expense Schedule of Financial Instruments Recorded at Fair Value Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Stock Issued During Period, Value, Gross Stock Issued During Period, Value, Gross Stock Issued During Period, Value, Gross Employee Restricted Stock Units [Member] Employee Restricted Stock Units [Member] Employee Restricted Stock Units Debt Securities [Member] Debt Securities [Member] Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Revenue from Contract with Customer Revenue from Contract with Customer [Text Block] Payables under SWU purchase agreements – increase (decrease) Increase (Decrease) in Accounts Payable, Trade Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Stock, Class of Stock [Table] Stock, Class of Stock [Table] Defined Benefit Plan, Plan Assets, Category [Table] Defined Benefit Plan, Plan Assets, Category [Table] Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Current Income Tax Expense (Benefit) Current Income Tax Expense (Benefit) Accounts Payable and Accrued Liabilities [Abstract] Accounts Payable and Accrued Liabilities [Abstract] Adjustment to Compensation, Amount Adjustment to Compensation Amount Revenue Concentration Risk, Percentage Pension Plan, Defined Benefit [Member] Pension Plan, Defined Benefit [Member] Pension Plan [Member] Options with exercise price greater than market price Options with exercise price greater than market price Options with exercise price greater than market price Employee Stock Option [Member] Share-Based Payment Arrangement, Option [Member] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Cash and Cash Equivalents, Policy [Policy Text Block] Cash and Cash Equivalents, Policy [Policy Text Block] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Defined Benefit Plan, Ultimate Health Care Cost Trend Rate Defined Benefit Plan, Ultimate Health Care Cost Trend Rate Total stockholders' deficit Beginning Balance Ending Balance Equity, Attributable to Parent Measurement Frequency [Axis] Measurement Frequency [Axis] Insider Trading Policies and Procedures [Line Items] NEW YORK NEW YORK Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] Common Stock, Shares Authorized Common Stock, Shares Authorized Segment Reporting Information, Revenue for Reportable Segment [Abstract] Segment Reporting Information, Revenue for Reportable Segment [Abstract] Stock Issued During Period, Shares, New Issues Stock Issued During Period, Shares, New Issues Board Restricted Stock Units [Member] Board Restricted Stock Units [Member] Board Restricted Stock Units Concentration Risk, Credit Risk, Policy [Policy Text Block] Concentration Risk, Credit Risk, Policy [Policy Text Block] LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT) Liabilities and Equity [Abstract] State and Local Jurisdiction [Member] State and Local Jurisdiction [Member] Statement [Table] Gain Contingencies [Table] Cover [Abstract] Cover [Abstract] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Maximum [Member] Maximum [Member] Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Average useful life of finite-lived intangible assets Average useful life of finite-lived intangible assets Finite-Lived Intangible Asset, Useful Life Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Net Restricted Stock Restricted Stock [Member] Advances from customers Customer Advances, Current Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Debt, long-term and short-term, combined carrying value Debt, Long-Term and Short-Term, Combined Amount Separative work units valuation change in period Borrowed inventory valuation change in period Borrowed inventory valuation change in period Technical Solutions Segment [Member] Technical Solutions Segment [Member] Technical Solutions Segment UF6 units borrowed in period UF6 units borrowed in period UF6 units borrowed in period Retirement Benefits [Abstract] Retirement Benefits [Abstract] Series B Preferred Stock [Member] Series B Preferred Stock [Member] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Audit Information [Abstract] Audit Information [Abstract] Subordination to credit facility, facility total Subordination to credit facility, facility total Subordination to credit facility, facility total Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Proceeds from Sale of Property, Plant, and Equipment Proceeds from Sale of Property, Plant, and Equipment Claim filed, unrecorded gain contingency, Gain Contingency, Unrecorded Amount Advances from customers, noncurrent, change Advances from customers, noncurrent, change Advances from customers, noncurrent, change Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Option Indexed to Issuer's Equity, Type [Domain] Option Indexed to Issuer's Equity, Type [Domain] Exercise Price Range [Axis] Exercise Price Range [Axis] Debt Conversion, Name [Domain] Debt Conversion, Name [Domain] Operating Lease, Liability, Current Operating Lease, Liability, Current Reclassification of stock-based compensation from liability to equity Reclassification of stock-based compensation from liability to equity Reclassification of stock-based compensation from liability to equity Document Fiscal Period Focus Document Fiscal Period Focus Company paid [Member] Company paid [Member] Paid from Company assets Summary of Significant Accounting Policies [Abstract] Summary of Significant Accounting Policies [Abstract] Summary of Significant Accounting Policies [Abstract] Other Significant Noncash Transaction [Axis] Other Significant Noncash Transaction [Axis] Award Timing Method Award Timing Method [Text Block] Award Type [Axis] Award Type [Axis] UF6 repaid in period, value UF6 repaid in period, value UF6 repaid in period, value Stock-based Compensation, Policy [Policy Text Block] Share-Based Payment Arrangement [Policy Text Block] Trading Symbol Trading Symbol Lessee, Operating Lease, Liability, Payments, Due Year Four Lessee, Operating Lease, Liability, to be Paid, Year Four Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Deposits for financial assurance Deposits Assets, Current Entity Address, City or Town Entity Address, City or Town Loss Contingency, Possible Loss Not Accrued Loss Contingency, Range of Possible Loss, Portion Not Accrued Class of Financing Receivable, Type [Axis] Class of Financing Receivable [Axis] Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Deferred Tax Assets, Net of Valuation Allowance Deferred Tax Assets, Net of Valuation Allowance Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Statement of Income Location, Balance [Domain] Statement of Income Location, Balance [Domain] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Emerging Growth Company Entity Emerging Growth Company Long-Term Debt, Maturity, Year Three Long-Term Debt, Maturity, Year Three Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Billed Contracts Receivable Billed Contracts Receivable Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Debt Issuance Costs, Net Debt Issuance Costs, Net Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months Defined Benefit Plan, Expected Future Benefit Payment, Year One Stock Appreciation Rights Expense Stock Appreciation Rights Expense Stock Appreciation Rights Expense Debt Conversion Description [Axis] Debt Conversion Description [Axis] Common Stock, Shares, Outstanding Common Stock, Shares, Outstanding Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Share-Based Payment Arrangement, Option, Exercise Price Range [Table] accrued loss accrued loss accrued loss Share-based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Remaining Contractual Term Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Remaining Contractual Term Class of Financing Receivable, Type [Domain] Class of Financing Receivable [Domain] Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Increase (decrease) in deferred tax asset valuation allowance Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Deferred Revenue and Advances from Customers - Current and Noncurrent Deferred Revenue and Advances from Customers - Current and Noncurrent Deferred Revenue and Advances from Customers - Current and Noncurrent Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Other current assets Prepaid Expense and Other Assets, Current Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Debt Instrument, Interest Rate, Effective Percentage Debt Instrument, Interest Rate, Effective Percentage Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Payable Under Purchase Agreement Payable Under Purchase Agreement Payable Under Purchase Agreement Provision (benefit) for income taxes Provision (benefit) for income taxes Provision (benefit) for income taxes Income Tax Expense (Benefit) Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Common Class B [Member] Common Class B [Member] Preferred Stock, Shares Issued Preferred stock, shares issued Preferred Stock, Shares Issued Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Subsegments [Axis] Subsegments [Axis] Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Disclosure Items [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Property, Plant and Equipment, Gross Property, Plant and Equipment, Gross Contract Estimated Fee Contract Estimated Fee Contract Estimated Fee Uranium inventory Uranium Inventory Carrying amount as of the balance sheet date of uranium inventory. Uranium is held in the form of natural uranium and as the uranium component of low enriched uranium. Uranium inventory is valued at the lower of cost or market. 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Other financial assurance [Member] Other financial assurance [Member] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Depreciation Depreciation Depreciation Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Equity Components [Axis] Equity Components [Axis] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Convertible Debt Convertible Debt [Member] Other Foreign Other Foreign [Member] Other Foreign [Member] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Product [Member] Product [Member] Number of Reportable Segments Number of Reportable Segments Compensation and Employee Benefit Plans Compensation and Employee Benefit Plans [Text Block] 2022 Award 2022 Award [Member] 2022 Award Industry of Counterparty, Type [Axis] Industry of Counterparty, Type [Axis] Entity Address, State or Province Entity Address, State or Province Postretirement health and life benefit obligations Liability, Other Postretirement Defined Benefit Plan, Noncurrent Tax Year 2018 [Member] Tax Year 2018 [Member] Defined Benefit Plan, Expected Future Benefit Payment, Year Four Defined Benefit Plan, Expected Future Benefit Payment, Year Four Deferred costs – increase (decrease) Increase (Decrease) in Deferred Charges Total current liabilities Liabilities, Current Uranium owed to customers and suppliers Uranium owed to customers and suppliers Uranium owed to customers and suppliers Stock Repurchase Price per Share Stock Repurchase Price per Share Stock Repurchase Price per Share Deferred Tax Assets, Inventory Deferred Tax Assets, Inventory Individual: Individual [Axis] Defined Contribution Plan, Cost Defined Contribution Plan, Cost Income Tax Jurisdiction [Domain] Income Tax Jurisdiction [Domain] Share-based Payment Arrangement, Stock Appreciation Right, Activity [Table Text Block] Share-Based Payment Arrangement, Stock Appreciation Right, Activity [Table Text Block] Document Annual Report Document Annual Report Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Deferred Tax Asset, In-Process Research and Development Deferred Tax Asset, In-Process Research and Development Entity Interactive Data Current Entity Interactive Data Current Mutual Fund [Member] Mutual Fund [Member] Gross Proceeds from Issuance of Common Stock Gross Proceeds from Issuance of Common Stock Gross Proceeds from Issuance of Common Stock Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Remaining Contractual Term Defined Benefit Plan, Funded (Unfunded) Status of Plan Defined Benefit Plan, Funded (Unfunded) Status of Plan Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Other Significant Noncash Transaction, Name [Domain] Other Significant Noncash Transaction, Name [Domain] Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount Government cost obligation Government cost obligation Government cost obligation on contract Finite-Lived Intangible Assets, Remaining Amortization Period Finite-Lived Intangible Assets, Remaining Amortization Period Statement [Table] Disaggregation of Revenue [Table] Deferred Tax Assets, Net Operating Loss and Credit Carryforwards Deferred Tax Assets, Operating Loss Carryforwards Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment Government [Member] Government [Member] Convertible Notes Payable, Current Convertible Notes Payable, Current Nonmonetary transaction, amount of barter transaction Nonmonetary Transaction, Amount of Barter Transaction Defined Benefit Plan, Expected Future Benefit Payment, Year Two Defined Benefit Plan, Expected Future Benefit Payment, Year Two Other long-term assets Other Assets, Noncurrent Customer [Domain] Customer [Domain] Entity Central Index Key Entity Central Index Key Distributed earnings allocable to warrant modification Distributed earnings allocable to warrant modification Distributed earnings allocable to warrant modification PEO Name PEO Name Debt Instrument, Convertible, Conversion Price Debt Instrument, Convertible, Conversion Price Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount 2025 Award 2025 Award [Member] 2025 Award Defined Benefit Plan [Table] Defined Benefit Plan [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Nonqualified Plan [Member] Nonqualified Plan [Member] Deferred revenue and advances from customers Contract with Customer, Liability, Current Deferred revenue, revenue recognized Deferred Revenue, Revenue Recognized Uranium inventory net of liability Uranium inventory net of liability Uranium inventory net of liability Exercise price of warrant Class of Warrant or Right, Exercise Price of Warrants or Rights Class of Warrant or Right, Exercise Price of Warrants or Rights Separative Work Units [Member] Separative Work Units [Member] Separative Work Units (SWU) [Member] - SWU is a standard unit of measurement that represents the effort required to transform a given amount of natural uranium into two components: enriched uranium having a higher percentage of the uranium-235 isotope (“U235”) and depleted uranium having a lower percentage of U235. The SWU contained in LEU is calculated using an industry standard formula based on the physics of enrichment. The amount of enrichment deemed to be contained in LEU under this formula is commonly referred to as its SWU component and the quantity of natural uranium used in the production of LEU under this formula is referred to as its uranium component. 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Description [Abstract] Retirement Benefits, Description [Abstract] Qualified Plan [Member] Qualified Plan [Member] Operating Loss Carryforwards, No Expiration Operating Loss Carryforwards, No Expiration Operating Loss Carryforwards, No Expiration Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Legal Entity Type of Counterparty [Domain] Legal Entity Type of Counterparty [Domain] Entity Address, Address Line One Entity Address, Address Line One Advanced technology license and decommissioning costs Research and Development Expense Accumulated Other Comprehensive Income (Loss) [Member] AOCI Attributable to Parent [Member] Distributed earnings allocable to retired preferred shares Preferred Stock Dividends and Other Adjustments Other Preferred Stock Dividends and Adjustments Amortization of prior service costs (credits), net Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Industry Sector [Axis] Industry Sector [Axis] Schedule of Stock by Class [Table Text Block] Schedule of Stock by Class [Table Text Block] Fair Value as of Grant Date Award Grant Date Fair Value Equity issuance costs included in accounts payable and accrued liabilities [Member] Deferred financing costs included in accounts payable and accrued liabilities [Member] Deferred financing costs included in accounts payable and accrued liabilities [Member] Schedule of Income Per Share [Table] Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Operating Loss Carryforwards Operating Loss Carryforwards Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Fair Value, Inputs, Level 1, 2 and 3 [Member] Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Labor and Related Expense Labor and Related Expense Aggregate Value, Preferred Stock Transactions Aggregate Value, Preferred Stock Transactions Aggregate Value, Preferred Stock Transactions Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Statement [Table] Impairment Effects on Earnings Per Share [Table] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Other Significant Noncash Transaction, Value of Consideration Received Other Significant Noncash Transaction, Value of Consideration Received Direct Costs of Stock Issuance Direct Costs of Stock Issuance Direct Costs of Stock Issuance Long-term debt, fair value Long-Term Debt, Fair Value Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Counterparty Name [Domain] Counterparty Name [Domain] Lessee, Operating Lease, Liability, Payments, Due Year Two Lessee, Operating Lease, Liability, to be Paid, Year Two Government spending authorization Government spending authorization Government spending authorization on contract Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Defined Benefit Plan, Expected Future Benefit Payment, Year Three Defined Benefit Plan, Expected Future Benefit Payment, Year Three Contract revenue portion after next twelve months Contract revenue portion after next twelve months Contract revenue portion after next twelve months Accumulated Depreciation, Depletion and Amortization, Sale or Disposal of Property, Plant and Equipment Accumulated Depreciation, Depletion and Amortization, Sale or Disposal of Property, Plant and Equipment Ten Largest Customers Ten Largest Customers [Member] Ten Largest Customers Non-PEO NEO Non-PEO NEO [Member] HALEU Enrichment Contract HALEU Enrichment Contract [Member] HALEU Enrichment Contract Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Conversion of interest payable-in-kind to long-term debt Notes Issued Preferred Stock, Dividend Rate, Percentage Preferred Stock, Dividend Rate, Percentage Technical Solutions Segment [Member] Contract Services Segment [Member] Contract Services Segment [Member] Land [Member] Land [Member] Equity Award [Domain] Award Type [Domain] Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months Lessee, Operating Lease, Liability, to be Paid, Year One Equity Awards Adjustments Equity Awards Adjustments [Member] Leasehold Improvements [Member] Leasehold Improvements [Member] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Compensation Amount Outstanding Recovery Compensation Amount Subsegments [Domain] Subsegments [Domain] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Retirement Plan Type [Domain] Retirement Plan Type [Domain] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Preferred Stock, Liquidation Amount per Share Preferred Stock, Liquidation Amount per Share Preferred Stock, Liquidation Amount per Share Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Exchange of preferred stock for common stock and common stock warrant Exchange of preferred stock for common stock and common stock warrant Exchange of preferred stock for common stock and common stock warrant Portion of Defined Benefit Plan, Benefit Obligation related to Remeasurement Portion of Defined Benefit Plan, Benefit Obligation related to Remeasurement Portion of Defined Benefit Plan, Benefit Obligation related to Remeasurement Accumulated other comprehensive income (loss), net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax Long-Term Debt, Maturity, Year One Long-Term Debt, Maturity, Year One Belgium BELGIUM Financial Instruments [Domain] Financial Instruments [Domain] Long-Term Debt, Maturity, Year Five Long-Term Debt, Maturity, Year Five Phase 2 Phase 2 [Member] Phase 2 Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Inventories Inventories Inventory, Net Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Minimum [Member] Minimum [Member] Defined Benefit Plan, Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate Defined Benefit Plan, Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate Uranium feed receivable Uranium feed receivable Uranium feed receivable Performance Condition, Minimum Net Income Performance Condition, Minimum Net Income Performance Condition, Minimum Net Income Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Company Selected Measure Name Company Selected Measure Name Debt Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Operating Lease, Payments Operating Lease, Payments Stock Appreciation Rights (SARs) [Member] Stock Appreciation Rights (SARs) [Member] Collateral [Domain] Collateral Held [Domain] Current Foreign Tax Expense (Benefit) Current Foreign Tax Expense (Benefit) Tax Period [Axis] Tax Period [Axis] Short-term inventory loan Short-term inventory loan Short-term inventory loan Collateral for Inventory Loan Collateral for Inventory Loan [Member] Collateral for Inventory Loan Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Average number of shares outstanding, diluted Average number of shares outstanding, diluted Weighted Average Number of Shares Outstanding, Diluted Segment Reporting, Policy [Policy Text Block] Segment Reporting, Policy [Policy Text Block] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Entity Small Business Entity Small Business Payments of Stock Issuance Costs Payments of Stock Issuance Costs Statement [Line Items] Income Tax Disclosure [Abstract] Disposal of right to use lease assets [Member] Disposal of right to use lease assets [Member] Disposal of right to use lease assets Schedule of Changes in Projected Benefit Obligations [Table Text Block] Schedule of Changes in Projected Benefit Obligations [Table Text Block] Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding Current State and Local Tax Expense (Benefit) Current State and Local Tax Expense (Benefit) Document Transition Report Document Transition Report Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Underlying Securities Award Underlying Securities Amount Revenue, nonmonetary transaction Nonmonetary Transaction, Gross Operating Revenue Recognized Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Deferred compensation asset Cash Surrender Value, Fair Value Disclosure Income Taxes Income Tax Disclosure [Text Block] Common Class A [Member] Common Class A [Member] Geographic Distribution [Domain] Geographic Distribution [Domain] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Share-based Compensation Arrangement by Share-based 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Amounts owed are satisfied when fabricator orders future bulk deliveries. 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SWU is held as the SWU component of low enriched uranium. A SWU is the standard measure of uranium enrichment using a standard formula derived from the physics of enrichment. SWU costs are based on production costs and purchase costs. SWU inventory is valued at the lower of cost or market. 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