ACCOUNTING POLICIES (Details 2) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014 bank	Dec. 31, 2013 bank
Allowance for doubtful accounts
Normal credit term granted to customers	30 days
Allowance for doubtful accounts receivable	$ 367	$ 152
Concentration of credit risk
Number of banks who hold majority of cash and cash equivalents	2	2
Prepaid inventories, net
Prepaid inventories	1,723	1,804
Prepaids and other assets
Total prepaids and other assets	$ 14,143	$ 10,298