Other Intangible Assets

9 Months Ended

Sep. 30, 2015

(9)Other Intangible Assets

The carrying values of the Company’s definite lived intangible assets as of September 30, 2015 and December 31, 2014, are as follows (in thousands):

Estimated useful life	Patents			Non- Compete			Customer List			Total
	14 years			5 years			5 years
Gross amount at September 30, 2015	$	429		$	512		$	2,046		$	2,987
Accumulated amortization at September 30, 2015	(429		)	(372		)	(1,471		)	(2,272		)
Net balance at September 30, 2015	$	—		$	140		$	575		$	715

Gross amount at December 31, 2014	$	429		$	512		$	2,046		$	2,987
Accumulated amortization at December 31, 2014	(429		)	(325		)	(1,280		)	(2,034		)
Net balance at December 31, 2014	$	—		$	187		$	766		$	953

Amortization expense related to intangible assets was approximately $79,000 and $81,000 for the three-month periods ended September 30, 2015 and 2014, respectively, and $238,000 and $313,000 for the nine-month periods ended September 30, 2015 and 2014, respectively. The estimated remaining amortization expense as of September 30, 2015 is as follows (in thousands):

Remainder of:
2015	$	79
2016	318
2017	318
Total	$	715