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Note 10 - Fair Value Measurements - Summary of Financial Assets and Liabilities Measured At Fair Value On a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Investments:
Cash surrender value of life insurance policies - deferred compensation plan	$ 17,773	$ 26,167
Marketable securities - other	2	3
Liabilities:
Deferred compensation plan	18,144	20,271
Fair Value, Inputs, Level 1 [Member]
Investments:
Cash surrender value of life insurance policies - deferred compensation plan	0	0
Marketable securities - other	2	3
Liabilities:
Deferred compensation plan	0	0
Fair Value, Inputs, Level 2 [Member]
Investments:
Cash surrender value of life insurance policies - deferred compensation plan	17,773	26,167
Marketable securities - other	0	0
Liabilities:
Deferred compensation plan	18,144	20,271
Fair Value, Inputs, Level 3 [Member]
Investments:
Cash surrender value of life insurance policies - deferred compensation plan	0	0
Marketable securities - other	0	0
Liabilities:
Deferred compensation plan	$ 0	$ 0

X

- Definition

Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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

X

- Definition

Amount of investment in marketable security.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.4)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

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

X

- Definition

Of the fair value of financial obligations, this element represents the portion associated with deferred compensation plans.

+ References

No definition available.

+ Details

Name:	xpro_FinancialLiabilitiesFairValueDisclosureDeferredCompensationPlans
Namespace Prefix:	xpro_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: