Intangible Assets

6 Months Ended

Dec. 31, 2018

8. INTANGIBLE ASSETS

Intangible assets will be amortized over the estimated lives, as follows (in thousands, except expected life):


Intangible Asset	Gross Carrying Amount		Accumulated Amortization		Net Balance December 31, 2018		Life	Income Statement Category
Customer relationships - maintenance contracts	$	1,610	$	(1,181)	$	429	6	Cost of sales
Developed technology		6,990		(6,990)		—	4	Research and development expense
	$	8,600	$	(8,171)	$	429

Intangible Asset	Gross Carrying Amount		Accumulated Amortization		Net Balance June 30, 2018		Life	Income Statement Category
Customer relationships - maintenance contracts	$	1,610	$	(1,047)	$	563	6	Cost of sales
Developed technology		6,990		(6,820)		170	4	Research and development expense
	$	8,600	$	(7,867)	$	733

Amortization expense related to the above intangible assets for the three months ended December 31, 2018 and 2017 was $67,000 and $503,000, respectively. Amortization expense related to the above intangible assets for the six months ended December 31, 2018 and 2017 was $304,000 and $1.0 million, respectively.

Estimated future amortization expense remaining as of December 31, 2018 for intangible assets acquired is as follows:


Year Ending June 30,
2019	$	135
2020		268
2021		26
Total future amortization expense	$	429