FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Fair value
Financial assets
Collateral security account	$ 3,164	$ 3,166
Financial liabilities
Fixed rate debentures	2,885	2,035
Line of credit	81,500	94,500
Carrying amount
Financial assets
Collateral security account	3,164	3,166
Financial liabilities
Fixed rate debentures	1,636	1,636
Line of credit	$ 81,500	$ 94,500