v3.22.2.2

Deferred charges and leasehold improvements (Details Narrative) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Deferred charges of dry-docking and special survey costs	$ 35,949	$ 27,344
Eurochampion 2004, Euronike, Archangel, Alaska, Artic, Antartic and Sakura Princess [Member]
Property, Plant and Equipment [Line Items]
Leasehold Improvements, Gross	$ 9,117	$ 6,953

X

- Definition

The carrying amount of deferred costs.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredCostsCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

+ Details

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

X

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

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=tnp_Eurochampion2004EuronikeArchangelAlaskaArcticSakuraPrincessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: