Property and equipment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended	21 Months Ended
Dec. 31, 2012	Dec. 31, 2012
Property and equipment
Less: accumulated depreciation	$ (93)	$ (93)
Property and equipment, net	756	756
Depreciation expense	93	93
Laboratory equipment
Property and equipment
Property and equipment, gross	663	663
Furniture and equipment
Property and equipment
Property and equipment, gross	101	101
Computer equipment
Property and equipment
Property and equipment, gross	7	7
Leasehold improvements
Property and equipment
Property and equipment, gross	$ 78	$ 78

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

+ References+ Details

Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References+ Details

- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References+ Details