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Intangible Assets, Net
 12 Months Ended
Jun. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets, Net Intangible Assets, Net
Intangible assets, net consist of (in thousands):
 June 30,
 20252024
Patent costs$— $2,330 
Accumulated amortization— (2,252)
Total finite-lived intangible assets, net— 78 
Trademarks and other indefinite-lived intangible assets245 245 
Total intangible assets, net$245 $323 
During the fiscal year ended June 30, 2025, the patents included in intangible assets related to Protandim® Nrf2 Synergizer® reached expiration and entered the public domain. Amortization expense totaled $0.1 million and $0.1 million for the fiscal years ended June 30, 2025 and 2024, respectively. As of June 30, 2025, the remaining weighted-average amortization period for finite-lived intangible assets is zero years. There is no annual estimated amortization expense expected in the succeeding fiscal year.