COMMITMENTS AND CONTINGENCIES (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Future minimum lease payments for all operating leases
2013 (remainder)	$ 4,351,000		$ 4,351,000
2014	9,855,000		9,855,000
2015	8,304,000		8,304,000
2016	4,687,000		4,687,000
2017	3,922,000		3,922,000
Thereafter	36,263,000		36,263,000
Total	67,382,000		67,382,000
Operating leases
Rental expense for operating leases	2,500,000	2,200,000	4,600,000	4,400,000
Estimated sublease income anticipated to be received in next 12 months	$ 58,000		$ 58,000