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Acquisition of Assets (Details) (USD $)
Jan. 30, 2013
Business Acquisition [Line Items]  
Material inventory $ 223,000antb_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsInventory1
Fixed assets 264,000antb_BusinessAcquisitionPurchasePriceAllocationFixedAssets
Intangible assets 13,000antb_BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsOtherThanGoodwill1
Business Acquisitions Cost Of Acquired Entity Purchase Price $ 500,000antb_BusinessAcquisitionsCostOfAcquiredEntityPurchasePrice