Warrants issued

No definition available.

Name:	ACTG_WarrantsIssued
Namespace Prefix:	ACTG_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
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+ Details

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

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

- Definition

Number of new stock issued during the period.

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+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesNewIssues
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Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=ACTG_SeriesAWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SecuritiesFinancingTransactionAxis=ACTG_SeriesARedeemableConvertibleStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

10. SERIES A REDEEMABLE CONVERTIBLE PREFERRED STOCK (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended	11 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Nov. 18, 2019	Dec. 31, 2019
Securities Financing Transaction [Line Items]
Fair value of Series A embedded derivative	$ 29,513	$ 29,513		$ 17,974
Securities Purchase Agreement [Member] \| Starboard Value [Member]
Securities Financing Transaction [Line Items]
Stock issued			350,000
Securities Purchase Agreement [Member] \| Starboard Value [Member] \| Series A Warrants [Member]
Securities Financing Transaction [Line Items]
Warrants issued			5,000,000
Conversion price			$ 3.65
Series A Redeemable Convertible Stock [Member]
Securities Financing Transaction [Line Items]
Accrued and unpaid dividends	0	0
Accretion	700	1,300
Fair value of Series A embedded derivative	$ 29,500	$ 29,500