Quick Answer
FUEL TECH, INC. reported Long Term Debt of $0.00 for the year ending 2021.
- FUEL TECH, INC. showed a decrease of -100.0% in Long Term Debt from 2020 to 2021.
- This data is from FUEL TECH, INC.'s annual report (Form 10-K), filed with the SEC on March 8, 2022.
- XBRL data for this metric is available from 2020 to 2021 (2 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: $872.0 thousand | Q3 2020: $611.0 thousand | Q2 2021: $0.00 | Q3 2021: $0.00.
- Historical annual values: Fiscal year 2021: $0.00 | Fiscal year 2020: $1.56 million.
- Data sourced from SEC EDGAR public filings as of August 5, 2026.
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