RESTRICTED CASH (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 939	$ 1,595
Other Noncurrent Assets [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	764	1,420
Other Noncurrent Assets [Member] | Collateral accounts
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	115	618
Other Noncurrent Assets [Member] | Rental deposits
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	649	802
Prepaid Expenses and Other Current Assets [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	175	175
Prepaid Expenses and Other Current Assets [Member] | Others
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	133	123
Prepaid Expenses and Other Current Assets [Member] | Client guarantees
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 42	$ 52