COMMITMENTS AND CONTINGENCIES (Details) (USD $)	12 Months Ended			1 Months Ended		1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2011 1330 and 1360 O'Brien Drive sqft	Jan. 31, 2012 1430 O'Brien Drive sqft	Apr. 30, 2012 New lease Newark sqft Item	Dec. 31, 2013 New lease Newark	Dec. 31, 2012 New lease Newark
Leases
Square feet agreed to lease				46,000	9,000	52,500
Lease extension term				12 months
Additional square feet obligated to lease						8,000
Number of lease renewal terms						1
Lease renewal option period						5 years
Lease renewal, minimum notice period prior to lease expiration						12 months
Lease termination penalty interest (as a percent)						8.00%
Future aggregate amount payable as rent over the remaining term of the lease	$ 13,308,000						$ 13,300,000
Deferred rent							1,500,000	900,000
Rent Expense	1,000,000	2,300,000	1,500,000
Future minimum payments under operating leases for facilities
2014	1,178,000
2015	1,233,000
2016	1,440,000
2017	1,485,000
Thereafter	7,972,000
Total	13,308,000						13,300,000
Cash contributions from landlords	$ 5,000,000	$ 1,300,000