| Component: (Network and Table) | |
|---|---|
| Network | 143 - Disclosure - Property Plant and Equipment (Detail) (http://www.amarincorp.com/taxonomy/role/DisclosurePropertyPlantAndEquipment) |
| Table | Schedule of Property, Plant and Equipment [Table] |
| Reporting Entity [Axis] | 0000897448 (http://www.sec.gov/CIK) |
| Legal Entity [Axis] | Entity [Domain] |
| Property, Plant and Equipment [Line Items] | Period [Axis] | |
|---|---|---|
2012-12-31 | 2011-12-31 | |
Leasehold improvements | 129,000 | 42,000 |
Computer equipment | 221,000 | 201,000 |
Furniture and fixtures | 243,000 | 77,000 |
Software | 502,000 | |
Property, plant and equipment, gross, total | 1,095,000 | 320,000 |
Accumulated depreciation and amortization | (356,000) | (176,000) |
Construction in Progress | 72,000 | 288,000 |
Property, plant and equipment, net | 811,000 | 432,000 |