The percent of total payment due to acquire property, plant and equipment.

No definition available.

Name:	lind_PaymentsToAcquirePropertyPlantAndEquipmentPercentPayment
Namespace Prefix:	lind_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The contract price of the vessel.

+ References

No definition available.

+ Details

Name:	lind_VesselContractPrice
Namespace Prefix:	lind_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of liabilities incurred to vendors for goods and services received, and accrued liabilities classified as other, payable within one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

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

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

+ Details

Name:	us-gaap_RoyaltyExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate total amount of expenses directly related to the marketing or selling of products or services.

+ References

No definition available.

+ Details

Name:	us-gaap_SellingAndMarketingExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	srt_OwnershipAxis=lind_MrBresslerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=lind_NaturalHabitatIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=lind_UlsteinVerftMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=lind_NationalGeographicMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=lind_WorldWildlifeFundMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=lind_ClassVesselMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 11 - Commitments and Contingencies (Details Textual) $ in Thousands, kr in Millions	1 Months Ended				3 Months Ended		9 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Sep. 30, 2019	Apr. 30, 2019	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Mar. 31, 2019 USD ($)	Feb. 25, 2019 NOK (kr)
Selling and Marketing Expense, Total					$ 2,128	$ 15,531	$ 18,413	$ 42,100
Mr. Bressler [Member] \| Natural Habitat, Inc [Member]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners					19.90%		19.90%
Ulstein Verft [Member]
Payments to Acquire Property, Plant and Equipment, Percent Payment		20.00%	20.00%	20.00%
Ulstein Verft [Member] \| Forecast [Member]
Payments to Acquire Property, Plant and Equipment, Percent Payment	10.00%
National Geographic [Member]
Royalty Expense					$ 0	1,700	$ 1,300	4,800
Accounts Payable and Other Accrued Liabilities, Current					0		0		$ 2,200
World Wildlife Fund [Member]
Selling and Marketing Expense, Total					$ 100	$ 300	$ 100	$ 700
Foreign Exchange Contract [Member] \| Ulstein Verft [Member]
Vessel, Contract Price \| kr											kr 1,291
Class Vessel [Member] \| Ulstein Verft [Member]
Vessel, Contract Price										$ 153,500