INTANGIBLES AND OTHER ASSETS Goodwill and Intangible Assets Disclosure (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, cost	$ 13,569,000	$ 9,403,000
Finite-lived intangible assets, accumulated amortization	2,805,000	1,437,000
Finite-lived intangible assets, net book value	10,764,000	7,966,000
Amortization expense	1,400,000	1,300,000	100,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Amortization expense, 2013	1,700,000
Amortization expense, 2014	1,700,000
Amortization expense, 2015	1,700,000
Amortization expense, 2016	1,700,000
Amortization expense, 2017	1,700,000
Acquisitions of intangibles			0
Acquired technology
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, cost	9,009,000	6,535,000
Finite-lived intangible assets, accumulated amortization	1,910,000	911,000
Finite-lived intangible assets, net book value	7,099,000	5,624,000
Acquired technology | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	7 years
Acquired technology | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	8 years
Assay royalties
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, cost	1,434,000	1,434,000
Finite-lived intangible assets, accumulated amortization	410,000	205,000
Finite-lived intangible assets, net book value	1,024,000	1,229,000
Finite-lived intangible asset, useful life	7 years
Third party payor relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, cost	367,000	367,000
Finite-lived intangible assets, accumulated amortization	49,000	0
Finite-lived intangible assets, net book value	318,000	367,000
Finite-lived intangible asset, useful life	3 years
Tradenames and trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, cost	824,000	344,000
Finite-lived intangible assets, accumulated amortization	115,000	49,000
Finite-lived intangible assets, net book value	709,000	295,000
Finite-lived intangible asset, useful life	7 years
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, cost	652,000	0
Finite-lived intangible assets, accumulated amortization	11,000	0
Finite-lived intangible assets, net book value	641,000	0
Finite-lived intangible asset, useful life	15 years
Covenants not to compete
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, cost	184,000	0
Finite-lived intangible assets, accumulated amortization	15,000	0
Finite-lived intangible assets, net book value	169,000	0
Finite-lived intangible asset, useful life	3 years
Patents
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, cost	929,000	703,000
Finite-lived intangible assets, accumulated amortization	280,000	267,000
Finite-lived intangible assets, net book value	649,000	436,000
Intellectual property
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, cost	170,000	20,000
Finite-lived intangible assets, accumulated amortization	15,000	5,000
Finite-lived intangible assets, net book value	$ 155,000	$ 15,000
Finite-lived intangible asset, useful life	7 years