COMMITMENTS AND CONTINGENCIES (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Future minimum lease payments for all operating leases
2012(remainder)	$ 4,277,000		$ 4,277,000
2013	8,206,000		8,206,000
2014	8,404,000		8,404,000
2015	6,814,000		6,814,000
2016	1,381,000		1,381,000
Thereafter	183,000		183,000
Total	29,265,000		29,265,000
Operating leases
Rental expense for operating leases	2,200,000	2,000,000	4,400,000	4,000,000
Estimated sublease income expected to be received over next three years	793,000		793,000
Estimated sublease income anticipated to be received in next 12 months	$ 260,000		$ 260,000