Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
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-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

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Balance Type:	debit
Period Type:	duration

- Definition

Line Of Credit Facility, Accordion Feature, Increase Limit

+ References

No definition available.

+ Details

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Namespace Prefix:	vldr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Details

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Balance Type:
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- Details

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- Details

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- Details

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- Details

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Credit Facilities and Notes Payable (Details) - USD ($)		1 Months Ended	3 Months Ended
Credit Facilities and Notes Payable (Details) - USD ($)	Apr. 08, 2020	Feb. 28, 2022	Mar. 31, 2022
PPP Loans
Line of Credit Facility [Line Items]
Loan proceeds received	$ 10,000,000
Gain on forgiveness of debt			$ 10,100,000
Line of Credit \| 2020 Revolving Line
Line of Credit Facility [Line Items]
Outstanding borrowings under facility			$ 0
Line of Credit \| Revolving Credit Facility \| 2020 Revolving Line
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 25,000,000
Option to increase the maximum borrowing capacity, additional amount		$ 15,000,000
Unused revolving line facility fee percentage		0.0015%
Line of Credit \| Revolving Credit Facility \| 2020 Revolving Line \| Prime Rate
Line of Credit Facility [Line Items]
Applicable margin on variable rate		0.015%
Line of Credit \| Revolving Credit Facility \| 2020 Revolving Line \| SOFR
Line of Credit Facility [Line Items]
Applicable margin on variable rate		0.025%
Line of Credit \| Letter of Credit \| 2020 Revolving Line
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 5,000,000