Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets [Abstract]

Change in Net Carrying Amount of Goodwill

The change in the net carrying amount of goodwill from January 1, 2017 through December 31, 2018 was comprised of the following items:

(in thousands)

	Performance Improvement Solutions		Nuclear Industry Training and Consulting		Total
Net book value at January 1, 2017	$	-	$	5,612	$	5,612
Acquisition		-		2,819		2,819
Dispositions		-		-		-
Goodwill impairment loss		-		-		-
Net book value at December 31, 2017	$	-	$	8,431	$	8,431
Acquisition		4,739		-		4,739
Dispositions		-		-		-
Goodwill impairment loss		-		-		-
Net book value at December 31, 2018	$	4,739	$	8,431	$	13,170

Definite-Lived Intangible Assets

The following table shows the gross carrying amount and accumulated amortization of definite-lived intangible assets:

(in thousands)	As of December 31, 2018
	Gross Carrying Amount		Accumulated Amortization			Net
Amortized intangible assets:
Customer relationships	$	6,831	$	(2,375	)	$	4,456
Trade names		1,295		(318	)		977
Developed technology		471		(471	)		-
Non-contractual customer relationships		433		(433	)		-
Noncompete agreement		221		(35	)		186
Alliance agreement		527		(66	)		461
Others		167		(167	)		-
Total	$	9,945	$	(3,865	)	$	6,080
(in thousands)	As of December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net
Amortized intangible assets:
Customer relationships	$	3,074	$	(1,218	)	$	1,856
Trade names		713		(33	)		680
Developed technology		471		(412	)		59
Non-contractual customer relationships		433		(426	)		7
Others		167		(165	)		2
Total	$	4,858	$	(2,254	)	$	2,604

Finite-Lived Intangible Assets, Future Amortization Expense

Amortization expense related to definite-lived intangible assets totaled $1.6 million and $0.3 million for the years ended December 31, 2018 and 2017, respectively. The following table shows the estimated amortization expense of the definite-lived intangible assets for the next five years:

(in thousands)
Years ended December 31:
2019	$	1,654
2020		1,332
2021		903
2022		674
2023		455
Thereafter		1,062
	$	6,080