RESTRUCTURING - Summary of reconciliation of recorded liabilities as presented in condensed consolidated balance sheets (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]
Accrued salaries, wages and payroll taxes	$ 2,432	$ 2,929
Other long-term liabilities	274	356
Facility Elimination
Restructuring Cost and Reserve [Line Items]
Accrued salaries, wages and payroll taxes	39
Other long-term liabilities	104
Restructuring Reserve	$ 143