Supplemental Balance Sheet Information

3 Months Ended

Mar. 31, 2014

Organization Consolidation And Presentation Of Financial Statements [Abstract]

4.	Supplemental Balance Sheet Information

Prepaid expenses and other current assets consist of the following:


	March 31, 2014		December 31, 2013
Prepaid clinical, manufacturing, and scientific costs	$	5,957	$	3,960
Interest receivable		828		859
Prepaid insurance		923		958
Other		1,217		840

	$	8,925	$	6,617

Other non-current assets consist of the following:


	March 31, 2014		December 31, 2013
Restricted cash	$	2,151	$	1,935
Other		80		52

	$	2,231	$	1,987

Restricted cash relates to deposits associated with construction activities at our new Bogart, GA facility and a long-term letter of credit associated with our headquarters in Lexington, MA.

Accrued expenses consist of the following:


	March 31, 2014		December 31, 2013
Accrued compensation and benefits	$	2,760	$	3,244
Clinical, manufacturing and scientific costs		7,399		6,587
Professional fees		1,011		568
Accrued capital expenditures		1,592		—
Other		1,167		722

	$	13,929	$	11,121