Quick Answer
ClearSign Technologies Corp reported Long Term Debt of $251.0 thousand for the year ending 2020.
- This data is from ClearSign Technologies Corp's annual report (Form 10-K), filed with the SEC on March 31, 2022.
- XBRL data for this metric is available from 2020 to 2020 (1 years of filings). Earlier data may not exist in machine-readable XBRL format as companies adopted electronic filing at different times.
- Quarterly values from 10-Q filings: Q4 2019: $0.00 | Q2 2020: $251.0 thousand | Q3 2020: $251.0 thousand | Q1 2021: $251.0 thousand | Q2 2021: $0.00 | Q3 2021: $0.00.
- Data sourced from SEC EDGAR public filings as of August 6, 2026.
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