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Note 3 - Revenue Recognition | 6 Months Ended
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Jun. 30, 2023
Notes to Financial Statements |
Revenue from Contract with Customer [Text Block] | 3. Revenue recognition The Company has historically generated revenues by recycling lead acid batteries (“LABs”) and selling the recovered lead to its customers. The Company was not in commercial production during the three and six months ended June 30, 2023 and 2022, respectively. Historically, Company products transferred to customers at a single point in time accounted for 100% of its revenue.

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