Long-lived intangible assets as of September 30, 2015 and December 31, 2014 consisted of the following:



	Dollars in Thousands
	September 30, 2015
	Cost		Accumulated Amortization		Impairment Charge		Net Book Value
Intangibles—technology	$	9,009	$	4,611	$	4,398	$	—
Intangibles—assay royalties	1,434		973		461		—
Intangibles—third party payor relationships	367		116		251		—
Intangibles—tradenames and trademarks	824		439		385		—
Intangibles—customer relationships	652		130		522		—
Intangibles—covenants not to compete	184		184		—		—
Patents	1,083		229		148		706
Intellectual property	466		172		—		294
	$	14,019	$	6,854	$	6,165	$	1,000



	Dollars in Thousands
	December 31, 2014
	Cost		Accumulated Amortization		Net Book Value
Intangibles—technology	$	9,009	$	3,995	$	5,014
Intangibles—assay royalties	1,434		819		615
Intangibles—third party payor relationships	367		98		269
Intangibles—tradenames and trademarks	824		351		473
Intangibles—customer relationships	652		98		554
Intangibles—covenants not to compete	184		138		46
Patents	815		87		728
Intellectual property	266		86		180
	$	13,551	$	5,672	$	7,879




	Estimated Useful Life
Technology	7-10 years
Assay royalties	7 years
Third party payor relationships	15 years
Tradenames and trademarks	7 years
Customer relationships	15 years
Covenants not to compete	3 years
Patents	Life of the patent
Intellectual property	7 years