Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Feb. 24, 2021	Jun. 30, 2020
Document Information [Line Items]
Entity Central Index Key	0000898437
Entity Registrant Name	Anika Therapeutics, Inc.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2020
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Document Transition Report	false
Entity File Number	001-14027
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	04-3145961
Entity Address, Address Line One	32 Wiggins Avenue
Entity Address, City or Town	Bedford
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01730
City Area Code	781
Local Phone Number	457-9000
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	ANIK
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 530,765,794
Entity Common Stock, Shares Outstanding		14,329,618