Intangible Assets, Net

12 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets, Net

Intangible Assets, Net

Intangible assets, net consist of (in thousands):

	June 30,
	2019			2018
Patent costs	$	2,330		$	2,330
Accumulated amortization	(1,592		)	(1,460		)
Total definite-lived intangible assets, net	738			870
Trademarks and other indefinite-lived intangible assets	245			245
Total intangible assets, net	$	983		$	1,115

Amortization expense totaled $0.1 million, $0.1 million and $0.1 million for the fiscal years ended June 30, 2019, 2018 and 2017, respectively. As of June 30, 2019, the remaining weighted-average amortization period for definite-lived intangible assets was 5.75 years. Annual estimated amortization expense is expected to approximate $0.1 million for each of the five succeeding fiscal years.