INTANGIBLES AND OTHER ASSETS Goodwill and Intangible Assets Disclosure (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 13,615,000	$ 13,569,000
Finite-lived intangible assets, accumulated amortization	3,253,000	2,805,000
Finite-lived intangible assets, net book value	10,362,000	10,764,000
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
Amortization of intangible assets	500,000	300,000
Intangibles - acquired technology
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	9,009,000	9,009,000
Finite-lived intangible assets, accumulated amortization	2,226,000	1,910,000
Finite-lived intangible assets, net book value	6,783,000	7,099,000
Intangibles - acquired technology | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	7 years
Intangibles - acquired technology | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	8 years
Intangibles - assay royalties
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	1,434,000	1,434,000
Finite-lived intangible assets, accumulated amortization	461,000	410,000
Finite-lived intangible assets, net book value	973,000	1,024,000
Finite-lived intangible asset, useful life	7 years
Third party payor relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	367,000	367,000
Finite-lived intangible assets, accumulated amortization	55,000	49,000
Finite-lived intangible assets, net book value	312,000	318,000
Finite-lived intangible asset, useful life	15 years
Intangibles - tradenames and trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	824,000	824,000
Finite-lived intangible assets, accumulated amortization	145,000	115,000
Finite-lived intangible assets, net book value	679,000	709,000
Finite-lived intangible asset, useful life	7 years
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	652,000	652,000
Finite-lived intangible assets, accumulated amortization	22,000	11,000
Finite-lived intangible assets, net book value	630,000	641,000
Finite-lived intangible asset, useful life	15 years
Covenants not to compete
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	184,000	184,000
Finite-lived intangible assets, accumulated amortization	31,000	15,000
Finite-lived intangible assets, net book value	153,000	169,000
Finite-lived intangible asset, useful life	3 years
Patents
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	975,000	929,000
Finite-lived intangible assets, accumulated amortization	293,000	280,000
Finite-lived intangible assets, net book value	682,000	649,000
Intellectual property
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	170,000	170,000
Finite-lived intangible assets, accumulated amortization	20,000	15,000
Finite-lived intangible assets, net book value	$ 150,000	$ 155,000
Finite-lived intangible asset, useful life	7 years