Line of credit borrowing base percentage.

No definition available.

Name:	lsf_LineOfCreditBorrowingBasePercentage
Namespace Prefix:	lsf_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of equity offerings eligible to be subscribed for by the lender.

+ References

No definition available.

+ Details

Name:	lsf_PercentageOfEquityOfferingsEligibleToBeSubscribedForByTheLender
Namespace Prefix:	lsf_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of outstanding capital stock eligbile to issued pursuant to mergers equipment loan financing.

+ References

No definition available.

+ Details

Name:	lsf_PercentageOfOutstandingCapitalStockEligbileToIssuedPursuantToMergersEquipmentLoanFinancing
Namespace Prefix:	lsf_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Receivables overdue period.

+ References

No definition available.

+ Details

Name:	lsf_ReceivablesOverduePeriod
Namespace Prefix:	lsf_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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
-Subparagraph (SX 210.5-02(22))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

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

- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of interest rate for borrowing under credit facility. Includes, but is not limited to, terms and method for determining interest rate.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateDescription
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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

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

- Definition

The carrying value as of the balance sheet date of the noncurrent portion 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
-Subparagraph (SX 210.5-02.22)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 45
-Paragraph 14
-URI https://asc.fasb.org/extlink&oid=99376301&loc=d3e1336-112600

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 45
-Paragraph 13
-URI https://asc.fasb.org/extlink&oid=99376301&loc=d3e1314-112600

+ Details

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

- Definition

Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

+ References

No definition available.

+ Details

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

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=lsf_WellsFargoBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=lsf_FirstInterstateBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=lsf_EastAssetManagementLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	lsf_InterestRateAxis=lsf_InterestRateInTheEventOfDefaultMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	lsf_LineOfCreditBorrowingBaseAxis=lsf_EligibleAccountsReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	lsf_LineOfCreditBorrowingBaseAxis=lsf_InventoryAndPrepaidInventoryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=lsf_SecondaryLineOfCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Revolving Lines of Credit - Additional Information (Detail) - USD ($)		3 Months Ended	6 Months Ended
	Sep. 02, 2021	Mar. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Maximum [Member]
Line of Credit Facility [Line Items]
Percentage of outstanding capital stock eligible to issued to directors officers pursuant to plan			5.00%
Wells Fargo Bank [Member] \| Secured Overnight Financing Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument variable interest rate spread	1.50%
Wells Fargo Bank [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit maximum borrowing capacity			$ 9,500,000
Line of credit facility interest rate description	Simple Secured Overnight Financing Rate (“SOFR”) plus 1.5% per annum
Line of credit facility maturity date	Aug. 31, 2022
Line of credit			0	$ 0
First Interstate Bank [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit maximum borrowing capacity			$ 5,000,000
Line of credit facility interest rate description			LIBOR plus 2.0%
Debt instrument variable interest rate spread		2.00%
East Asset Management LLC [Member]
Line of Credit Facility [Line Items]
Percentage of equity offerings eligible to be subscribed for by the lender			20.00%
Percentage of outstanding capital stock eligible to issued pursuant to mergers equipment loan financing			10.00%
East Asset Management LLC [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit net of current portion				0
Line of credit facility maturity date			Aug. 10, 2022
Line of credit interest rate in the event of default			15.00%
East Asset Management LLC [Member] \| Revolving Credit Facility [Member] \| Interest Rate In The Event Of Default [Member]
Line of Credit Facility [Line Items]
Line of credit interest rate in the event of default			20.00%
East Asset Management LLC [Member] \| Revolving Credit Facility [Member] \| Eligible Accounts Receivable [Member]
Line of Credit Facility [Line Items]
Line of credit borrowing base percentage			90.00%
Receivables overdue period			90 days
East Asset Management LLC [Member] \| Revolving Credit Facility [Member] \| Inventory And Prepaid Inventory [Member]
Line of Credit Facility [Line Items]
Line of credit borrowing base percentage			90.00%
East Asset Management LLC [Member] \| Revolving Credit Facility [Member] \| Maximum [Member]
Line of Credit Facility [Line Items]
Line of credit maximum borrowing capacity			$ 10,000,000
East Asset Management LLC [Member] \| Revolving Credit Facility [Member] \| Minimum [Member]
Line of Credit Facility [Line Items]
Line of credit maximum borrowing capacity			3,000,000
East Asset Management LLC [Member] \| Secondary Line Of Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit maximum borrowing capacity			$ 200,000
Line of credit				$ 0