Intangible Assets

3 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

3.	Intangible Assets

The reconciliation of intangible assets for the three months ended September 30, 2016 and for the year ended June 30, 2016 was as follows (in thousands):


	Three Months Ended September 30, 2016			Year Ended June 30, 2016
Patented technologies
Gross carrying amount at beginning of period	$	36,196		$	39,710
Foreign currency translation adjustments		(635	)		(3,514	)

Gross carrying amount at end of period		35,561			36,196

Accumulated amortization at beginning of period		(35,094	)		(37,785	)
Amortization expense		(183	)		(756	)
Foreign currency translation adjustments		626			3,447

Accumulated amortization at end of period		(34,651	)		(35,094	)

Net book value at end of period	$	910		$	1,102

The Company amortizes its intangible assets with finite lives on a straight-line basis over their respective estimated useful lives. Amortization of intangible assets totaled $183,000 and $192,000 for the three months ended September 30, 2016 and 2015, respectively. The carrying value of intangible assets at September 30, 2016 of $910,000 (approximately $662,000 attributable to the Durasert technology and $248,000 attributable to the Tethadur technology) is expected to be amortized on a straight-line basis over the remaining estimated useful life of 1.25 years, or approximately $728,000 per year.