INTANGIBLE ASSETS

3 Months Ended

Mar. 31, 2015

INTANGIBLE ASSETS

INTANGIBLE ASSETS

5.INTANGIBLE ASSETS

Intangible assets on the Company’s condensed consolidated balance sheets consist of the following (in thousands):

		March 31, 2015							December 31, 2014
	Life	Gross Amount		Accumulated amortization			Net Book Value		Gross Amount		Accumulated amortization			Net Book Value
Customer lists	8 - 15 years	$	34,139	$	(6,179	)	$	27,960	$	34,379	$	(5,801	)	$	28,578
Trade name	10 years	4,775		(1,505		)	3,270		4,775		(1,409		)	3,366
Design and technologies	8 - 10 years	2,178		(1,470		)	708		2,425		(1,598		)	827
Patents		24		(5		)	19		24		(4		)	20
Total		$	41,116	$	(9,159	)	$	31,957	$	41,603	$	(8,812	)	$	32,791

Amortization expense for intangible assets was $662 and $678 for the quarters ending March 31, 2015 and 2014, respectively.

Estimated future intangible asset amortization expense as of March 31, 2015 is as follows (in thousands):

	Estimated Amortization Expense
Remainder of 2015	$	1,980
2016	2,640
2017	2,640
2018	2,640
2019	2,640
Thereafter	19,417
Total estimated amortization expense	$	31,957