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Note 11 - Accrued Expenses (Details Textual) - USD ($) $ in Millions	Mar. 09, 2018	Mar. 08, 2018	Sep. 30, 2018
Recall Payable			$ 0.3
Former Chief Executive Officer [Member]
Severance Benefit, For A One Year Post Retirement Consulting Agreement		$ 0.3
Severance Benefit Following Retirement	$ 1.7
Severance Benefit Following Retirement, Term	1 year 180 days

X

- Definition

The amount of recall expense that has been accrued, but not yet paid.

+ References

No definition available.

+ Details

Name:	anik_RecallPayable
Namespace Prefix:	anik_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of severance benefit provided following a person's retirement.

+ References

No definition available.

+ Details

Name:	anik_SeveranceBenefitFollowingRetirement
Namespace Prefix:	anik_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The period of time for the severance benefit to be paid following retirement.

+ References

No definition available.

+ Details

Name:	anik_SeveranceBenefitFollowingRetirementTerm
Namespace Prefix:	anik_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of severance benefit provided in a one-year post-retirement consulting agreement.

+ References

No definition available.

+ Details

Name:	anik_SeveranceBenefitForAOneYearPostRetirementConsultingAgreement
Namespace Prefix:	anik_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_TitleOfIndividualAxis=anik_FormerChiefExecutiveOfficerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: