Intangible Assets

3 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

3.	Intangible Assets

The reconciliation of intangible assets for the three months ended September 30, 2015 and for the year ended June 30, 2015 was as follows (in thousands):


	Three Months Ended September 30, 2015			Year Ended June 30, 2015
Patented technologies
Gross carrying amount at beginning of period	$	39,710		$	41,689
Foreign currency translation adjustments		(835	)		(1,979	)

Gross carrying amount at end of period		38,875			39,710

Accumulated amortization at beginning of period		(37,785	)		(38,924	)
Amortization expense		(192	)		(770	)
Foreign currency translation adjustments		815			1,909

Accumulated amortization at end of period		(37,162	)		(37,785	)

Net book value at end of period	$	1,713		$	1,925

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 $192,000 and $196,000 for the three months ended September 30, 2015 and 2014, respectively. The carrying value of intangible assets at September 30, 2015 of $1.7 million (approximately $1.2 million attributable to the Durasert technology and $0.5 million attributable to the BioSilicon™ technology (including Tethadur)) is expected to be amortized on a straight-line basis over the remaining estimated useful life of 2.25 years, or approximately $761,000 per year.