Business combination, operating expenses.

No definition available.

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Namespace Prefix:	IDXG_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479

+ Details

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

- Definition

Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph b
-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

+ Details

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

- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

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Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_StatementEquityComponentsAxis=IDXG_UnderwriterWarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=IDXG_AsuragenAndRedpathMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_TypeOfArrangementAxis=IDXG_TerminationAgreementMember
Namespace Prefix:
Data Type:	na
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Period Type:

Fair Value Measurements (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Jun. 21, 2017	Mar. 31, 2017
Business combination, contingent consideration liabilities	$ 232	$ 260
Reduction in the fair value of the contingent consideration	(5,795)	(11,860)
Pre-Funded Warrants [Member]
Warrant to purchase shares of common stock			2,600,000
Underwriter Warrants[Member]
Warrant to purchase shares of common stock			575,000
Asuragen and Redpath [Member]
Reduction in the fair value of the contingent consideration		$ 11,900
RedPath Integrated Pathology, Inc [Member] \| Termination Agreement [Member]
Business combination, contingent consideration liabilities				$ 6,000
Business combination, operating expenses	$ 5,800