Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets

Intangible Assets

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

4.	Intangible Assets

The following table summarizes information relating to the Company’s definite-lived intangible assets:

	March 31, 2018									December 31, 2017
	Useful		Gross					Net		Gross					Net
	Lives		Carrying		Accumulated			Carrying		Carrying		Accumulated			Carrying
Intangibles (amount in thousands)	(Years)		Amount		Amortization			Amount		Amount		Amortization			Amount

Patent		1-17	$	673	$	(314	)	$	359	$	657	$	(306	)	$	351
Software		3		410		(400	)		10		410		(398	)		12
Customer relationships		12		3,370		(2,307	)		1,063		3,370		(2,246	)		1,124
Permit		10		545		(496	)		49		545		(483	)		62
Total			$	4,998	$	(3,517	)	$	1,481	$	4,982	$	(3,433	)	$	1,549

The intangible assets noted above are amortized on a straight-line basis over their useful lives with the exception of customer relationships which are being amortized using an accelerated method. The Company has only one definite-lived permit that is subject to amortization.

The following table summarizes the expected amortization over the next five years for our definite-lived intangible assets (including the one definite-lived permit):

	Amount
Year	(In thousands)

2018 (remaining)	$	251
2019		254
2020		218
2121		198
2022		173

Amortization expenses relating to the definite-lived intangible assets as discussed above were $84,000 and $94,000 for the three months ended March 31, 2018 and 2017, respectively.