Accrued expenses (Tables)

6 Months Ended

Jun. 30, 2012

Accrued expenses

Schedule of accrued expenses

	June 30, 2012		December 31, 2011
Compensation and related benefits	$	496	$	86
Professional fees		133		520
Contract research organizations		63		217
Other expenses		39		23
Deferred rent		32		27
	$	763	$	873