RESTRUCTURING CHARGES (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended						3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 Severance and related costs	Dec. 31, 2011 Facility closure costs	Dec. 31, 2011 Other	Dec. 31, 2010 Diagnostic tools Employee	Dec. 31, 2011 Diagnostic tools	Dec. 31, 2010 Diagnostic tools
Restructuring Cost and Reserve [Line Items]
Number of severed employees							5
Restructuring Charges	$ 0	$ 41	$ 138				$ 100	$ 12	$ 73
Costs Incurred in the year ended December 31, 2011		41		0	28	13
Cumulative Costs Incurred at December 31, 2011		179		53	74	52
Total Expected Costs		$ 179		$ 53	$ 74	$ 52