Annual report pursuant to Section 13 and 15(d)

Patents (Details)

v3.24.0.1
Patents (Details) - USD ($)
Dec. 31, 2023
Dec. 31, 2022
Patents    
Gross carrying amount $ 8,473,000 $ 8,473,000
Accumulated amortization (7,147,000) (6,881,000)
Patents, net $ 1,326,000 $ 1,592,000