RESTRICTED CASH (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 1,215	$ 937
Prepaid Expenses and Other Current Assets
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	241	228
Prepaid Expenses and Other Current Assets | Client guarantees
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	128	118
Prepaid Expenses and Other Current Assets | Others
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	113	110
Other Noncurrent Assets
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	974	709
Other Noncurrent Assets | Collateral accounts
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	558	229
Other Noncurrent Assets | Rental deposits
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 416	$ 480