RESTRICTED CASH (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 967	$ 1,189
Other assets
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	671	942
Other assets | Collateral accounts
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	117	557
Other assets | Rental deposits
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	554	385
Prepaid and other
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	296	247
Prepaid and other | Other
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	113	108
Prepaid and other | Client guarantees
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 183	$ 139