FAIR VALUE AND DERIVATIVE INSTRUMENTS (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
Financial instruments
Cash and cash equivalents	$ 22,290	$ 34,722	$ 18,716	$ 26,855
Restricted cash	3,469	4,124
Contingent consideration	1,500	7,500
Foreign currency forward contracts, net	(72)	(587)
Recurring | Level 1
Financial instruments
Cash and cash equivalents	22,290	34,722
Cash and cash equivalents, fair value	22,290	34,722
Restricted cash	3,469	4,124
Restricted cash, fair value	3,469	4,124
Recurring | Level 2
Financial instruments
Foreign currency forward contracts	306	285
Foreign currency forward contracts, fair value	306	285
Variable interest rate debt	19,104	26,635
Variable interest rate debt, fair value	19,104	26,635
Foreign currency forward contracts	378	872
Foreign currency forward contracts, fair value	378	872
Recurring | Level 3
Financial instruments
Contingent consideration	1,500	7,500
Contingent Consideration, At Fair Value	$ 1,500	$ 7,500