Represents the additional area of a real estate property due to agreement.

No definition available.

Name:	axgn_AreaOfRealEstatePropertyAdditional
Namespace Prefix:	axgn_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

The period of time after which the reporting entity has the right to terminate the lease before the expiration of the lease term.

+ References

No definition available.

+ Details

Name:	axgn_EarlyTerminationPeriod
Namespace Prefix:	axgn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the notice period for termination of the agreement by either parties.

+ References

No definition available.

+ Details

Name:	axgn_NoticePeriodForTerminationOfAgreement
Namespace Prefix:	axgn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

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

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

- Details

Name:	us-gaap_LeaseArrangementTypeAxis=axgn_SHNMedicalOfficePropertiesTrustMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseArrangementTypeAxis=axgn_JaColeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseArrangementTypeAxis=axgn_AshleyAvenueLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseArrangementTypeAxis=axgn_HeightsUnionPremisesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

Commitments and Contingencies - Operating Leases (Details) $ in Thousands				12 Months Ended
	Nov. 19, 2018 USD ($) ft²	Oct. 26, 2018 ft²	Sep. 20, 2018 USD ($) ft²	Dec. 31, 2018 USD ($) ft²	Nov. 21, 2018 ft²	Jan. 23, 2017 ft²	Feb. 06, 2007 ft²
SNH
Commitments and Contingencies
Size of building space \| ft²				18,000			19,000
Additional leased office space in square feet \| ft²						1,400
SNH \| Minimum
Commitments and Contingencies
Annual lease expense				$ 353
SNH \| Maximum
Commitments and Contingencies
Annual lease expense				$ 363
Ja-Cole
Commitments and Contingencies
Size of building space \| ft²				12,500
Additional leased office space in square feet \| ft²					2,500
Ja-Cole \| Minimum
Commitments and Contingencies
Annual lease expense				$ 113
Ja-Cole \| Maximum
Commitments and Contingencies
Annual lease expense				116
Ashley Avenue Lease
Commitments and Contingencies
Size of building space \| ft²		15,000
Right to early termination of lease		18 months
Notice period for termination of contract		4 months
Ashley Avenue Lease \| Minimum
Commitments and Contingencies
Annual lease expense				381
Ashley Avenue Lease \| Maximum
Commitments and Contingencies
Annual lease expense				$ 360
Heights Union Premises
Commitments and Contingencies
Size of building space \| ft²			75,000
Heights Union Premises \| Minimum
Commitments and Contingencies
Annual lease expense			$ 2,400
Heights Union Premises \| Maximum
Commitments and Contingencies
Annual lease expense			$ 3,308
Second Expansion Lease [member] \| SNH
Commitments and Contingencies
Additional leased office space in square feet \| ft²	2,800
Second Expansion Lease [member] \| SNH \| Minimum
Commitments and Contingencies
Annual lease expense	$ 45
Second Expansion Lease [member] \| SNH \| Maximum
Commitments and Contingencies
Annual lease expense	$ 42
Third Expansion Lease [member] \| SNH
Commitments and Contingencies
Additional leased office space in square feet \| ft²	2,000
Third Expansion Lease [member] \| SNH \| Minimum
Commitments and Contingencies
Annual lease expense	$ 37
Third Expansion Lease [member] \| SNH \| Maximum
Commitments and Contingencies
Annual lease expense	$ 35