CORTROPHIN PRE-LAUNCH CHARGES (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Cortrophin Pre Launch Charges	$ 37	$ 195	$ 8,275	$ 195
Maximum
Cortrophin Pre Launch Charges	$ 100

Amount of charges directly related to the Cortrophin pre-launch commercialization efforts, including but not limited to sales and marketing expenses.

No definition available.

Name:	anip_CortrophinPreLaunchCharges
Namespace Prefix:	anip_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration