Document And Entity Information
Note To Financial Statement Details Textual
Significant Accounting Policies
Note 2 - Summary of Significant Accounting Policies
U.S. Federal statutory tax rate
Note 4 - Stockholders' Equity
Note 5 - Income Taxes
Note 6 - Inventory
Note 7 - Other Current Assets
crvw_AllowanceForSystemRemovalCurrent
Allowance For System Removal, Current
The amount of allowance related to the removal of equipment related to subscription services not renewed or expired.
Note 8 - Property and Equipment
Long-term Liabilities:
Note 9 - Other Assets
crvw_NumberOfMajorCustomers
Number of Major Customers
Represents the number of major customers accounting for 10% or more of the specified concentration risk benchmark, which includes, but not limited to, sales revenue, accounts receivable, etc.
Note 10 - Other Current Liabilities
Income Tax Disclosure [Text Block]
Note 11 - Commitments and Contingencies
Note 12 - Lease
Note 14 - Segment Reporting
Note 2 - Summary of Significant Accounting Policies - Disaggregation of Revenue (Details)
Note 2 - Summary of Significant Accounting Policies - Schedule of Contract Liabilities (Details)
us-gaap_LiabilitiesCurrent
Total current liabilities
Schedule of Maturities of Long-Term Debt [Table Text Block]
Note 2 - Summary of Significant Accounting Policies - Schedule of Performance Obligations (Details)
Note 2 - Summary of Significant Accounting Policies - Schedule of Performance Obligations 2 (Details)
Note 2 - Summary of Significant Accounting Policies - Schedule of Performance Obligations (Details) (Parentheticals)
Other current liabilities
TOTAL OTHER CURRENT LIABILITIES
Note 2 - Summary of Significant Accounting Policies - Schedule of Capitalized Costs (Details)
Note 4 - Stockholders' Equity - Warrant Activity (Details)
Customer One [Member]
Represents the first customer.
Note 4 - Stockholders' Equity - Option Activity (Details)
Note 5 - Income Taxes - Provision for Income Taxes (Details)
Sales Based Contract Revenue [Member]
The sales based contract revenue.
Allowance For System Removal [Policy Text Block]
The policy describing the allowance for system removal.
Schedule of Other Current Assets [Table Text Block]
Note 5 - Income Taxes - Schedule of Income Tax Reconciliation (Details)
The 2009 Stock Option Plan [Member]
Represents the The 2009 Stock Option Plan.
Note 5 - Income Taxes - Deferred Tax Assets and Liabilities (Details)
Note 6 - Inventory - Schedule of Inventory (Details)
The 2015 Stock Option Plan [Member]
Represents the The 2015 Stock Option Plan.
Note 7 - Other Current Assets - Schedule of Other Current Assets (Details)
Note 8 - Property and Equipment - Schedule of Property and Equipment (Details)
Note 9 - Other Assets - Schedule of Intangible Assets (Details)
Note 9 - Other Assets - Schedule of Other Assets (Details)
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
Note 10 - Other Current Liabilities - Schedule of Other Current Liabilities (Details)
The 2007 Stock Option Plan [Member]
Represents the 2007 stock option plan.
Note 11 - Commitments and Contingencies - Future Debt Payments (Details)
Note 12 - Lease - Operating Lease Asset and Liability (Details)
Note 12 - Lease - Schedule of Lease Maturities (Details)
Note 12 - Lease - Operating Lease Cash Flows (Details)
Note 14 - Segment Reporting - Schedule of Segment Reporting Information (Details)
Notes To Financial Statements
The 2016 Stock Option Plan [Member]
Represents the The 2016 Stock Option Plan.
Notes To Financial Statements [Abstract]
The 2020 Stock Option Plan [Member]
Represents the The 2020 Stock Option Plan.
Expired, exercise price (in dollars per share)
The cost per security expired during the period.
crvw_ClassOfWarrantOrRightsNumberOfSecuritiesExpired
Expired (in shares)
The number of securities expired during the period.
Vested and Exercisable, exercise price (in dollars per share)
Vested and Exercisable, remaining contractual life (Year)
Notes payable
Vested and Exercisable, aggregate intrinsic value
Vested and Exercisable (in shares)
Balance, remaining contractual life (Year)
Balance, aggregate intrinsic value
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Balance, exercise price (in dollars per share)
Balance, exercise price (in dollars per share)
Forfeited/Expired, exercise price (in dollars per share)
Granted, exercise price (in dollars per share)
Exercised, exercise price (in dollars per share)
crvw_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour
Thereafter
Amount of lessee\'s undiscounted obligation for lease payment for operating lease due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
Accrued interest payable
Lessee, Operating Leases [Text Block]
Accounts payable
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Balance (in shares)
Balance (in shares)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
Forfeited/Expired (in shares)
Trademarks [Member]
Other accrued liabilities
Deferred officer compensation(1)
us-gaap_PolicyTextBlockAbstract
Accounting Policies
Accrued paid time off
Allowance for system removal
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)
Other Intangible Assets [Member]
us-gaap_PaymentsToAcquireIntangibleAssets
Patent, trademark, and other intangible asset costs
us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Purchase of property and equipment
Right of use leased asset acquired via operating lease liability
SUPPLEMENTAL SCHEDULE OF NON-CASH FINANCING ACTIVITES:
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)
Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]
Current Liabilities:
us-gaap_IncreaseDecreaseInOperatingLeaseLiability
Operating lease liability
us-gaap_Assets
Total assets
Patents [Member]
Plan Name [Axis]
Plan Name [Domain]
The 2024 Stock Option Plan [Member]
Represents the 2024 stock option plan.
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount
Other Assets Disclosure [Text Block]
Rent
Operating Lease, Expense
Other Current Assets [Text Block]
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)
Deferred tax effects of state net operating loss true-ups
The amount of deferred tax adjustments related to the income tax reconciliation.
us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
Share-Based Payment Arrangement, Expense, Tax Benefit
Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Sales Based Software Bundle [Member]
Represents sales based software bundle.
Subscription Based Lease [Member]
Represents subscription based lease.
Sales Based Equipment Package [Member]
Represents sales based equipment package.
Business Description and Basis of Presentation [Text Block]
Award Type [Domain]
Effective Income Tax Rate Reconciliation [Table]
Amortization of deferred installation costs
The amount of amortization charged against earnings during the period for deferred installation costs.
Award Type [Axis]
Net loss
Net Loss
us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Accumulated amortization
us-gaap_FiniteLivedIntangibleAssetsNet
Intangible assets, net
Intangible assets, net
us-gaap_FiniteLivedIntangibleAssetsGross
Cost
Share-Based Payment Arrangement, Option [Member]
Warrant [Member]
Inventory [Axis]
crvw_CapitalizedContractCostExpenseRecognized
Transfer to expense
Represents the amount of capitalized contract cost recognized as an expense during the period.
Inventory [Domain]
Additions
crvw_CapitalizedContractCostAdditions
Represents the amount of additions to capitalized contract costs during the period.
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
crvw_WorkingCapitalDeficit
Working Capital (Deficit)
Represents the amount of working capital (deficit).
Sales Based Contracts [Member]
Relating to sales based contracts.
Subscription Based Contract [Member]
Relating to subscription based contracts.
Additions
Represents the amount of additions to contracts with customers classified as a liability.
Office Space Lease [Member]
Relating to the office space lease.
Equipment Components [Member]
Relating to equipment components.
Granted, remaining contractual life (Year)
Weighted average remaining contractual term for option awards granted during period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
Test Equipment [Member]
Relating to test equipment.
Network Equipment [Member]
Relating to network equipment.
Commitments and Contingencies Disclosure [Text Block]
us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Less: accumulated depreciation
Property and equipment, net
TOTAL PROPERTY AND EQUIPMENT
Other Parties [Member]
Represents the other parties.
Warrants, remaining contractual life (Year)
Represents the weighted average remaining contractual life of warrants or rights.
Related and Other Parties [Member]
Represents the related and other parties.
Schedule of Other Current Liabilities [Table Text Block]
The tabular disclosure of other current liabilities.
Property and equipment, gross
Patents and Trademarks [Member]
Relating to patents and trademarks.
Warehouse Equipment [Member]
Relating to warehouse equipment.
California Franchise Tax Board [Member]
Long-Term Debt, Type [Axis]
Long-Term Debt, Type [Domain]
Operating Lease, Cash Flows [Table Text Block]
Table disclosing the cash flows related to the operating lease.
Operating Lease, Assets and Liabilities [Table Text Block]
Represents the information pertaining to the operating lease assets and liabilities and their location in the balance sheet
Deferred Sales Commissions [Member]
Relating to deferred sales commissions.
Deferred Installation Costs [Member]
Relating to deferred installation costs.
Security Deposits [Member]
Relating to security deposits.
Prepaid License Fee [Member]
Relating to prepaid license fees.
Other assets, gross
Represents the amount of noncurrent assets classified as other before amortization.
Other assets, amortization
Represents the amount of accumulated amortization on noncurrent assets classified as other.
CASH FLOWS FROM INVESTING ACTIVITIES
PDL Credit Agreement [Member]
Relating to the PDL Credit Agreement.
Accrued interest
us-gaap_IncreaseDecreaseInInterestPayableNet
Loans Payable [Member]
us-gaap_IncomeTaxExpenseBenefit
Benefit from (provision for) income taxes
Total
Accounts payable
us-gaap_IncreaseDecreaseInAccountsPayable
us-gaap_OperatingExpenses
Total operating expenses
Payroll taxes
General and administration
Heath insurance
Unusual Risk or Uncertainty [Table]
Cash
us-gaap_InterestExpenseNonoperating
Interest expense
Other current liabilities
us-gaap_IncreaseDecreaseInOtherCurrentLiabilities
Salary and wages
Network operations
us-gaap_AllocatedShareBasedCompensationExpense
Share-Based Payment Arrangement, Expense
Amendment Flag
Capitalized research expenses
The deferred tax assets of capitalized research expenses.
City Area Code
Use of Estimates, Policy [Policy Text Block]
New Accounting Pronouncements, Policy [Policy Text Block]
us-gaap_SharesOutstanding
Balance (in shares)
Balance (in shares)
Common stock shares outstanding (in shares)
Common Stock, Shares, Outstanding (in shares)
Preferred stock, shares outstanding (in shares)
Preferred Stock, Shares Outstanding (in shares)
Current Fiscal Year End Date
us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent
Operating Lease, Weighted Average Discount Rate, Percent
Document Fiscal Period Focus
Document Fiscal Year Focus
Document Period End Date
crvw_ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance
Contract With Customer Liability Revenue Recognized Including Opening Balance
Transfer to revenue
The liability revenue from the contract with customers that was recognized including the opening balance.
us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1
Operating Lease, Weighted Average Remaining Lease Term (Year)
Entity File Number
Entity Emerging Growth Company
Document Type
Entity Small Business
Entity Shell Company
Document Information [Line Items]
Document Information [Table]
Entity Public Float
Entity Filer Category
Debt Instrument [Axis]
Entity Current Reporting Status
Debt Instrument, Name [Domain]
Entity Voluntary Filers
Entity Well-known Seasoned Issuer
us-gaap_CapitalizedComputerSoftwareAdditions
Capitalized Computer Software, Additions
us-gaap_CapitalizedContractCostGross
Balance, beginning of period
Balance, end of period
Award Timing MNPI Disclosure [Text Block]
us-gaap_ConcentrationRiskPercentage1
Concentration Risk, Percentage
us-gaap_IncreaseDecreaseInAccountsReceivable
Accounts receivable
ecd_AwardTmgMnpiCnsdrdFlag
Award Timing MNPI Considered [Flag]
Entity Tax Identification Number
Entity Central Index Key
Insider Trading Policies and Procedures [Line Items]
Depreciation and amortization
Entity Registrant Name
us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition
Stock based compensation
ecd_InsiderTrdPoliciesProcAdoptedFlag
Insider Trading Policies and Procedures Adopted [Flag]
Lease liabilities
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from lease liabilities.
Entity [Domain]
Customer Concentration Risk [Member]
Legal Entity [Axis]
Capitalized Contract Cost [Table Text Block]
Disallowed interest
Amount of disallowed interest nondeductible expense.
Entity Address, Address Line One
ecd_NonRule10b51ArrTrmntdFlag
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Amortization of intangible assets
Amortization of Intangible Assets
Entity Address, City or Town
ecd_Rule10b51ArrTrmntdFlag
Rule 10b5-1 Arrangement Terminated [Flag]
ecd_Rule10b51ArrAdoptedFlag
Rule 10b5-1 Arrangement Adopted [Flag]
Entity Address, Postal Zip Code
Entity Address, State or Province
ecd_NonRule10b51ArrAdoptedFlag
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Concentration Risk Type [Axis]
Material Terms of Trading Arrangement [Text Block]
us-gaap_AllowanceForDoubtfulAccountsReceivable
Accounts Receivable, Allowance for Credit Loss
Concentration Risk Type [Domain]
Entity Common Stock, Shares Outstanding
Trading Arrangements, by Individual [Table]
us-gaap_AdvertisingExpense
Advertising Expense
Revenue Benchmark [Member]
Accounts Receivable [Member]
us-gaap_IncreaseDecreaseInOtherCurrentAssets
Other current assets
Professional fees
Tax Credits - R&D
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.
us-gaap_IncreaseDecreaseInInventories
Inventory
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Domain]
Local Phone Number
us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
Exercised (in shares)
us-gaap_TableTextBlock
Notes Tables
us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Line of Credit Facility, Maximum Borrowing Capacity
Related and Nonrelated Parties [Axis]
Related and Nonrelated Parties [Domain]
Granted (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)
Sales and marketing
Line of Credit Facility, Lender [Domain]
Lender Name [Axis]
Other segment expenses
us-gaap_LiabilitiesAndStockholdersEquity
Total liabilities and stockholders' deficit
us-gaap_IncreaseDecreaseInContractWithCustomerAsset
Contract assets
Research and development
Accumulated deficit
Twelfth Credit Agreement Amendment [Member]
Related to Twelfth Credit Agreement Amendment.
Deferred Clinical Training Costs [Member]
Relating to deferred clinical training costs.
Debt Disclosure [Text Block]
Changes in operating assets and liabilities:
us-gaap_DisclosureTextBlockAbstract
Notes to Financial Statements
Substantial Doubt about Going Concern [Text Block]
Inventory Disclosure [Text Block]
Operating lease liability, net of current portion
Schedule of Inventory, Current [Table Text Block]
Inventory, Current [Table]
Present value of future minimum lease payments
us-gaap_OperatingLeaseLiability
Total lease liability
Subsequent Event [Table]
Operating lease liability
Subsequent Events [Text Block]
Operating lease asset
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue
Total minimum lease payments
us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
Less effects of discounting
us-gaap_DeferredIncomeTaxExpenseBenefit
Sub-total:
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree
2028
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour
2029
Fair Value of Financial Instruments, Policy [Policy Text Block]
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
2026
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
2027
Stock based compensation related to options granted and warrants issued
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]
Other assets, net
Lessee, Leases [Policy Text Block]
us-gaap_FiniteLivedIntangibleAssetUsefulLife
Finite-Lived Intangible Asset, Useful Life (Year)
Earnings Per Share, Policy [Policy Text Block]
Operating expenses:
Income Tax, Policy [Policy Text Block]
Debt Conversion [Table]
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Research and Development Expense, Policy [Policy Text Block]
Depreciation
Depreciation
us-gaap_AssetsCurrent
Total current assets
Share-Based Payment Arrangement [Policy Text Block]
Equity [Text Block]
us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill
Impairment of Intangible Assets (Excluding Goodwill)
Advertising Cost [Policy Text Block]
us-gaap_AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment
Total other assets
Common stock - par value $0.001; 800,000,000 shares authorized; 583,880,748 issued and outstanding
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Common stock shares authorized (in shares)
Common Stock, Shares Authorized (in shares)
Common stock shares issued (in shares)
Common Stock, Shares, Issued (in shares)
Common stock par value (in dollars per share)
Common Stock, Par or Stated Value Per Share (in dollars per share)
us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount
us-gaap_DeferredTaxAssetsValuationAllowance
Valuation allowance for deferred tax assets
Statistical Measurement [Domain]
Lessee, Lease, Description [Table]
us-gaap_OperatingLeasePayments
Operating cash flows for operating leases
Maximum [Member]
Minimum [Member]
Weighted Average [Member]
Product and Service [Axis]
Other current assets
TOTAL OTHER CURRENT ASSETS
Product and Service [Domain]
Deferred tax assets, net of valuation allowance
us-gaap_DeferredTaxAssetsNet
Statistical Measurement [Axis]
Debt, Policy [Policy Text Block]
Preferred stock - par value $0.001; 20,000,000 shares authorized; no shares issued and outstanding
Preferred stock, shares issued (in shares)
Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]
Sales tax overpayment
Other prepaid expenses
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]
Property, Plant and Equipment Disclosure [Text Block]
Property, Plant and Equipment [Table Text Block]
us-gaap_DeferredTaxAssetsGross
Total deferred tax assets
Preferred stock, shares authorized (in shares)
Preferred Stock, Shares Authorized (in shares)
Total Inventory
Inventory
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share (in dollars per share)
Prepaid insurance
Customer [Axis]
Customer [Domain]
Intangible assets
Fixed assets
Reconciliation of Revenue from Segments to Consolidated [Table]
Accrued liabilities
us-gaap_PropertyPlantAndEquipmentUsefulLife
Property, Plant and Equipment, Useful Life (Year)
Deferred revenue
us-gaap_IncreaseDecreaseInDeferredRevenue
CASH FLOWS FROM OPERATING ACTIVITIES
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Revenue [Policy Text Block]
Statement [Line Items]
us-gaap_NumberOfOperatingSegments
Number of Operating Segments
Furniture and Fixtures [Member]
Accounts receivable
us-gaap_NumberOfReportableSegments
Number of Reportable Segments
Additional paid in capital
Stock based compensation
Revenues:
Stockholders' Deficit:
Leasehold Improvements [Member]
Property, Plant and Equipment, Policy [Policy Text Block]
Property, Plant and Equipment [Table]
Long-Lived Tangible Asset [Axis]
Other income and (expense)
us-gaap_NonoperatingIncomeExpense
Total other income (expense)
Long-Lived Tangible Asset [Domain]
Segment Reporting Disclosure [Text Block]
Research and development credit carry-forward
Current Assets:
State net operating loss carry-forwards
Schedule of Other Assets, Noncurrent [Table Text Block]
Other Assets:
us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
Cash, beginning of year
Cash, end of year
Federal net operating loss carry-forwards
Inventory, Policy [Policy Text Block]
Interest income
us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
Increase (decrease) in cash
us-gaap_NetCashProvidedByUsedInFinancingActivities
Net cash flows (used in) in financing activities
us-gaap_Liabilities
Total liabilities
Commitments and Contingencies (Note 11)
us-gaap_OperatingIncomeLoss
Operating income (loss)
Other income and (expense)
us-gaap_NetCashProvidedByUsedInOperatingActivities
Net cash provided by (used in) operating activities
us-gaap_NetCashProvidedByUsedInInvestingActivities
Net cash (used in) investing activities
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
Paid time off
Amount of expense for paid time off.
Installation expenses
Amount of expenses for installation.
us-gaap_ContractWithCustomerLiability
Balance, beginning of period
Balance, end of period
us-gaap_InterestPayableCurrentAndNoncurrent
Interest Payable
Portable Units [Member]
Represents portable units inventory.
Mobile Car Units [Member]
Represents mobile car units inventory.
Concentration Risk, Credit Risk, Policy [Policy Text Block]
Nonrelated Party [Member]
Disallowed interest, percent
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to disallowed interest.
Tax Credits - R&D, percent
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.
Tranche One [Member]
Represents information pertaining to tranche one.
Deferred tax effects of state net operating loss true-ups, percent
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deferred tax adjustments.
Cost of Goods and Service [Policy Text Block]
Cost of equipment
Equipment costs
Retained Earnings [Member]
Revenues:
Total revenue
Total revenues
us-gaap_CurrentStateAndLocalTaxExpenseBenefit
State income tax, net of federal benefit
State income tax, net of federal benefit
us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Additional Paid-in Capital [Member]
us-gaap_CurrentFederalTaxExpenseBenefit
Federal
Common Stock [Member]
Federal
us-gaap_DeferredFederalIncomeTaxExpenseBenefit
Equity Components [Axis]
Equity Component [Domain]
Total
Stock, Class of Stock [Table]
us-gaap_CurrentIncomeTaxExpenseBenefit
Sub-total:
Satisfaction period (Year)
us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Warrants, exercise price (in dollars per share)
Warrants, exercise price (in dollars per share)
Performance obligation
Revenue, Remaining Performance Obligation, Amount
us-gaap_NotesPayable
Notes Payable
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Loss before taxes
us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Warrants (in shares)
Warrants (in shares)
Deferred revenue
Deferred revenue
us-gaap_DeferredRevenueNoncurrent
ICFR Auditor Attestation Flag
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]
State and Local Jurisdiction [Member]
Vehicles [Member]
Income Tax Authority, Name [Axis]
Income Tax Authority, Name [Domain]
Income Tax Jurisdiction [Axis]
Income Tax Jurisdiction [Domain]
Disaggregation of Revenue [Table Text Block]
Domestic Tax Jurisdiction [Member]
Office Equipment [Member]
us-gaap_RepaymentsOfLongTermDebt
Repayment of vehicle loan
Document Annual Report
Accounts Receivable [Policy Text Block]
Entity Incorporation, State or Country Code
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]
us-gaap_OpenTaxYear
Open Tax Year
Document Transition Report
Document Financial Statement Error Correction [Flag]
Entity Interactive Data Current
Related Party [Member]
Auditor Name
Auditor Firm ID
Auditor Location
us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)
us-gaap_OperatingLossCarryforwards
Operating Loss Carryforwards
Asset Class [Axis]
Asset Class [Domain]
Statement [Table]
Statement of Financial Position [Abstract]
Weighted average number of common shares outstanding, basic and diluted (in shares)
Other, net, percent
us-gaap_EffectiveIncomeTaxRateContinuingOperations
Income tax expense (benefit), percent
Net loss per share (in dollars per share)
State Rate Change Adjustment, percent
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
State Return to Provision Adjustments, percent
Change in State Valuation Allowance, percent
Statement of Cash Flows [Abstract]
Contract with Customer, Basis of Pricing [Axis]
Contract with Customer, Basis of Pricing [Domain]
Lease Contractual Term [Domain]
Statement of Stockholders' Equity [Abstract]
Lease Contractual Term [Axis]
Income Statement [Abstract]
us-gaap_LesseeOperatingLeaseRemainingLeaseTerm
Lessee, Operating Lease, Remaining Lease Term (Month)
2026
Contract with Customer, Sales Channel [Axis]
Contract with Customer, Sales Channel [Domain]
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Other, percent
Other, percent
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Accounting Standards Update and Change in Accounting Principle [Table]
Offsetting Liabilities [Table]
State and Local Income Taxes, percent
Other Commitments [Table]
us-gaap_LiabilitiesNoncurrent
Total long-term liabilities
Other, net
CASH FLOWS FROM FINANCING ACTIVITIES
Other liability
U.S. Federal statutory tax rate, percent
All Other States [Member]
Represents all other states.
State Rate Change Adjustment
crvw_PolicyTable
Texas Tax Authority [Member]
Represents Texas Tax Authority.
State Return to Provision Adjustments
Change in State Valuation Allowance
Georgia Tax Authority [Member]
Represents Georgia Tax Authority.
Offsetting Assets [Table]
Non-cash lease expense
us-gaap_StockholdersEquity
Total stockholders' deficit
Balance
Balance
Other
Other
Class of Stock [Axis]
Accrued interest
State and Local Income Taxes