Common Stock, Par value.

No definition available.

Name:	allr_CommonStockValueOne
Namespace Prefix:	allr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Conversion price percentage.

+ References

No definition available.

+ Details

Name:	allr_ConversionPricePercentage
Namespace Prefix:	allr_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Credit risk percentage.

+ References

No definition available.

+ Details

Name:	allr_CreditRiskPercentage
Namespace Prefix:	allr_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Fees payable percentage.

+ References

No definition available.

+ Details

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Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Finance cost amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	allr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Interest accrues actual payment percentage.

+ References

No definition available.

+ Details

Name:	allr_InterestAccruesActualPaymentPercentage
Namespace Prefix:	allr_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Net carrying amount of liability.

+ References

No definition available.

+ Details

Name:	allr_NetCarryingAmountOfLiability
Namespace Prefix:	allr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of principal notes.

+ References

No definition available.

+ Details

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Namespace Prefix:	allr_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Received cash percentage.

+ References

No definition available.

+ Details

Name:	allr_ReceivedCashPercentage
Namespace Prefix:	allr_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
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-Section S99
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-Subparagraph (SX 210.5-02(29))
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Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
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-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (c)
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Balance Type:	na
Period Type:	instant

- Definition

The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only.

+ References

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

- Definition

Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second and third rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Carrying amount of the unpaid portion of the fee payable to the managing member or general partner for management of the fund or trust.

+ References

No definition available.

+ Details

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

- Definition

The percentage of weighted average cost inventory present at the reporting date when inventory is valued using different valuation methods.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of remaining performance obligation to total remaining performance obligation not recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(1)
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- Definition

The fair value of stock issued in noncash financing activities.

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Balance Type:	credit
Period Type:	duration

Convertible Debt (Details) $ / shares in Units, kr in Thousands, $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	Mar. 31, 2020 USD ($) $ / shares	Mar. 31, 2020 SEK (kr)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Mar. 31, 2020 kr / shares	Mar. 31, 2020 SEK (kr)	Dec. 31, 2019 USD ($)
Debt Disclosure [Abstract]
Stock issued	$ 10,100	kr 100,000
Common Stock, Par value	$ 1,010								kr 10,000
Fees payable percentage	5.00%	5.00%
Fees payable	$ 10,100
Installments amount	$ 252
Percentage of principal notes	5.00%	5.00%
Conversion price percentage	95.00%	95.00%
Conversion Price \| (per share)	$ 0.01							kr 0.05
Repayments of debt	$ 4	kr 25
Interest accrues actual payment percentage	8.00%	8.00%
Weighted average cost of capital percentage	15.00%								15.00%
Credit risk percentage	1.00%	1.00%
Recognized gain percentage	9.00%								9.00%
Stock issued	$ 10,100		$ 3,157		$ 3,157		$ 1,624		kr 100,000	$ 924
Received cash percentage	95.00%	95.00%
Fair value recognized gain					9
Finance cost amount				$ 475	298	$ 475
Net carrying amount of liability							$ 1,327