XML 86 R32.htm IDEA: XBRL DOCUMENT

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Significant Accounting Policies

Schedule of estimated useful lives of property and equipment including leasehold improvements

Asset classification		Estimated useful life (in years)

Lab equipment		3 - 7
IT equipment		3 - 7
Leaseholds improvements		Lesser of useful life or lease term
Furniture and fixtures		3 - 7

Schedule of entity's financial statement activity related to Silver Creek during these periods

(in thousands)	Non-controlling Interest

Balance at December 31, 2009	$	—
Acquisition of Silver Creek preferred stock		1,082
Net loss attributable to Silver Creek		(55	)

Balance at December 31, 2010	$	1,027
Net loss attributable to Silver Creek		(453	)

Balance at December 31, 2011	$	574
Net loss attributable to Silver Creek		(477	)

Balance at December 31, 2012	$	97

- Definition

The tabular disclosure of the effects of any changes in a parent's ownership interest in a subsidiary on the equity attributable to the parent if the ownership interests in a subsidiary changes during the period. The changes represented by this element did not result in the deconsolidation of the subsidiary.

+ References+ Details

- Definition

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References+ Details