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Note 13 - Shareholder Rights Plan (Details Textual) - Shareholder Rights Plan Two Thousand Eight [Member] - $ / shares | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Apr. 04, 2008
Exercise Price per Share | $ 75 |
Stock Redemption Price per Share | 0.01 |
Series B Junior Participating Preferred Stock [Member] |  |
Exercise Price per Share | 175,000 |
Stock Redemption Price per Share | $ 0.01 |
Maximum [Member] |  |
Stock Holders Rights Plan Exercisability Threshold Percentage |  | 15.00%
Stockholder Rights Plan Exercise Trigger Threshold Percentage Voting Stock Ownership Offer |  | 15.00%
Percentage of Beneficial Ownership Interests | 50.00% |

X
- Definition the per share amount at which grantees can acquire shares of common stock by exercise of stock. + References No definition available. + Details
Name: | anik_ExercisePricePerShare
Namespace Prefix: | anik_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of beneficial ownership interests. + References No definition available. + Details
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Namespace Prefix: | anik_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The threshold percentage of stock holders rights plan exercisability. + References No definition available. + Details
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Namespace Prefix: | anik_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The price per share at which the stock of the entity is redeemed or may be called at. + References No definition available. + Details
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Namespace Prefix: | anik_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The threshold percentage of stockholder rights plan exercise trigger for voting stock ownership offer. + References No definition available. + Details
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Namespace Prefix: | anik_
Data Type: | num:percentItemType
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Period Type: | instant

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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
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X
- Details
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Namespace Prefix: |
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Period Type: |