LINE OF CREDIT (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2013
Line of Credit Facility [Line Items]
Outstanding amount under line of credit facility	$ 23,450,000	$ 21,350,000
Sovereign Revolving Facility [Member]
Line of Credit Facility [Line Items]
Expiration date of revolving credit facility	Dec. 31, 2016
Interest rate on revolving credit facility (in hundredths)		3.25%
Outstanding amount under line of credit facility		21,400,000
Sovereign Revolving Facility [Member] | Term loan[Member]
Line of Credit Facility [Line Items]
Revolving credit facility under credit agreement	18,000,000
Term loan	3,900,000
Number of term loans under the credit agreement	2
Sovereign Revolving Facility [Member] | Restated Agreement [Member]
Line of Credit Facility [Line Items]
Revolving credit facility under credit agreement	$ 35,000,000