Note 10 - Patents and Trademarks, Net |
3 Months Ended |
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Mar. 31, 2021 | |
Notes to Financial Statements | |
Intangible Assets Disclosure [Text Block] | 10. Patents and Trademarks, netNet patents and trademarks totaled $139 and $158 as of March 31, 2021 and December 31, 2020, respectively, and primarily consisted of purchased patent rights and internally developed patents.Purchased patent rights represent the exclusive right to commercialize the bulk amorphous alloy and other amorphous alloy technology acquired from California Institute of Technology (“Caltech”), through a license agreement with Caltech and other institutions. All fees and other amounts payable by the Company for these rights and licenses have been paid or accrued in full, and no further royalties, license fees, or other amounts will be payable in the future under the license agreement.In addition to the purchased and licensed patents, the Company has internally developed patents. Internally developed patents include legal and registration costs incurred to obtain the respective patents. The Company currently holds various patents and numerous pending patent applications in the United States, as well as numerous foreign counterparts to these patents outside of the United States. The Company amortizes capitalized patents and trademarks over an average of 10 to 17 year periods. Amortization expense for patents and trademarks was $19 and $21 for the three months ended March 31, 2021 and 2020, respectively. |