FAIR VALUE AND DERIVATIVE INSTRUMENTS (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Financial instruments
Restricted cash	$ 2,845	$ 2,634
Foreign currency forward contracts, net	(403)	(205)
Transfer of asset from level 1 to level 2	0	0
Transfer of asset from level 2 to level 1	0	0
Transfer of assets from level 3 to other levels	0	0
Transfer of assets from other levels to level 3	0	0
Transfer of liabilities from level 1 to level 2	0	0
Transfer of liabilities from level 2 to level 1	0	0
Transfer of liabilities from level 3 to other levels	0	0
Transfer of liabilities from other levels to level 3	0	0
Recurring | Total
Financial instruments
Cash and cash equivalents	18,716	26,855
Restricted cash	2,845	2,634
Notes payable to bank	(17,060)	(11,500)
Variable interest rate debt	(29,906)	(8,489)
Contingent purchase price payment	(7,000)	(7,484)
Foreign currency forward contracts, net	(403)	(205)
Recurring | Level 1
Financial instruments
Cash and cash equivalents	18,716	26,855
Restricted cash	2,845	2,634
Recurring | Level 2
Financial instruments
Notes payable to bank	(17,060)	(11,500)
Variable interest rate debt	(29,006)	(8,489)
Foreign currency forward contracts, net	(403)	(205)
Recurring | Level 3
Financial instruments
Contingent purchase price payment	$ (7,000)	$ (7,484)