We acquired intangible assets consisting of a Trade Name and Customer/Distributor Relationships in addition to goodwill in connection with the acquisitions of Coord3 and NMS in the third quarter of fiscal 2015 which is considered our CMM reporting unit. Furthermore, we continue to develop intangibles, primarily software. These assets are susceptible to shortened estimated useful lives and changes in fair value due to changes in their use, market or economic changes, or other events or circumstances. The amortization periods for customer/distributor relationships, trade name and software are five years, ten years and five years, respectively.

During the fourth quarter of fiscal 2019, due to the impairment indicators discussed in Note 1, we assessed whether the carrying amounts of our long-lived assets in the CMM reporting unit (the asset group) may not be recoverable and therefore may be impaired. To assess the recoverability, the undiscounted cash flows of the asset group were analyzed over a range of potential remaining useful lives with the customer relationships as the primary asset. The result was that the asset group carrying value exceeded the sum of the undiscounted cash flows. After a fair value analysis, we determined that our trade name and customer relationships were impaired. We recorded a non-cash impairment loss related to these definite-lived intangible assets of $1.4 million. There were no impairment indicators for other long-lived assets subject to amortization.

At September 30, 2019, there are no indications of potential impairment of these intangible assets.

	September 30,					September 30,		June 30,											June 30,
	2019					2019		2019											2019
	Gross					Net		Gross					Impact of						Net
	Carrying		Accumulated			Carrying		Carrying		Impairments			Foreign			Accumulated			Carrying
	Amount		Amortization			Amount		Amount					Currency			Amortization			Amount
Customer/Distributor Relationships	$	-	$	-		$	-	$	3,249	$	(589	)	$	(7	)	$	(2,653	)	$	-
Trade Name		1,655		(1,048	)		607		2,523		(795	)		(8	)		(1,059	)		661
Software		2,027		(822	)		1,205		1,902		-			-			(747	)		1,155
Total	$	3,682	$	(1,870	)	$	1,812	$	7,674	$	(1,384	)	$	(15	)	$	(4,459	)	$	1,816

Amortization expense was $104,000 and $291,000 for the three months ended September 30, 2019 and 2018, respectively.

The estimated amortization of the remaining intangible assets by year is as follows (in thousands):