COMMITMENTS AND CONTINGENCIES (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Future minimum lease payments, Capital Lease
2014	$ 2,178,000
2015	2,142,000
2016	2,100,000
2017	1,504,000
2018	1,461,000
Thereafter	14,453,000
Total future minimum lease payments	23,838,000
Less: amount representing interest	(5,415,000)
Present value of future minimum lease payments	18,423,000
Less: current portion	(1,288,000)	(1,000,000)
Long-term capital lease obligation	17,135,000	18,613,000
Future minimum lease payments, Other Operating Leases
2014	2,137,000
2015	1,552,000
2016	1,552,000
2017	1,552,000
2018	1,057,000
Total future minimum lease payments	7,850,000
Rental expense	5,100,000	5,100,000	5,300,000
Other Operating Leases, Affiliate
Future minimum lease payments, Other Operating Leases
2014	240,000
Total future minimum lease payments	240,000
Other Operating Leases, Others
Future minimum lease payments, Other Operating Leases
2014	1,897,000
2015	1,552,000
2016	1,552,000
2017	1,552,000
2018	1,057,000
Total future minimum lease payments	$ 7,610,000