CIK 0000793306 路 Houston, TX 路 SIC 1311 路 All EDGAR filings
3 verified red-flag event(s) since 2025-04-01 and 34 earlier one(s) from our 2015-2025 history. Red flag score: 7 how it's calculated
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| Filed | Flag (links to the SEC filing) | Severity | Why |
|---|---|---|---|
| 2024-04-01 | Going-concern doubt alleviated | 2 | substantial doubt disclosed, then alleviated by management's plans or new funding |
| 2023-11-14 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2023-08-14 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2023-04-03 | Going-concern doubt | 5 | in auditor's report |
| 2023-04-03 | Filing-delay notice, annual report filed within extension (NT 10-K) | 1 | report filed within the extension on 2023-04-03 |
| 2022-11-14 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2022-08-15 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2022-05-16 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2022-04-01 | Going-concern doubt | 5 | in auditor's report |
| 2022-04-01 | Filing-delay notice, annual report filed within extension (NT 10-K) | 1 | report filed within the extension on 2022-04-01 |
| 2021-11-15 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2021-08-17 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2021-08-17 | Filing-delay notice, quarterly report filed within extension (NT 10-Q) | 1 | report filed within the extension on 2021-08-17 |
| 2021-05-17 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2021-03-31 | Going-concern doubt | 5 | in auditor's report |
| 2020-11-16 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2020-08-14 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2020-05-15 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2020-03-30 | Going-concern doubt | 5 | in auditor's report |
| 2019-11-14 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2019-08-14 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2019-05-16 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2019-05-16 | Filing-delay notice, quarterly report filed within extension (NT 10-Q) | 1 | report filed within the extension on 2019-05-16 |
| 2019-04-01 | Going-concern doubt | 5 | in auditor's report |
| 2018-11-14 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2018-08-14 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2018-05-15 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2018-04-02 | Going-concern doubt | 5 | in auditor's report |
| 2017-11-16 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2017-11-15 | Filing-delay notice, quarterly report filed within extension (NT 10-Q) | 1 | report filed within the extension on 2017-11-16 |
| 2017-10-12 | Going-concern doubt (10-Q) | 4 | quarterly (unaudited) disclosure; also within 90 days: Filing-delay notice, quarterly report (NT 10-Q) |
| 2017-08-15 | Late quarterly report (NT 10-Q) | 4 | filed late on 2017-10-12; also within 90 days: Going-concern doubt |
| 2017-05-15 | Going-concern doubt (10-Q) | 3 | quarterly (unaudited) disclosure |
| 2017-03-31 | Going-concern doubt | 5 | in auditor's report |
From our 10-year history, classified with the same rules as current flags. Older flags have no page of their own; see the research study for how flagged stocks did afterwards.
Computed only from the verified red flags below: each flag earns points for its severity, loses half its weight every 180 days, and companies with several different flag types in the past year get a bonus. Total points 3.4 → score = 100 × (1 − e−points/50) = 7. Full method
| Flag | Filed | Severity | Points | Age | Decay | Counts |
|---|---|---|---|---|---|---|
| Going-concern doubt alleviated | 2026-03-31 | 2/5 | 4.0 | 201 d | ×0.46 | 1.8 |
| Going-concern doubt alleviated | 2025-04-01 | 2/5 | 4.0 | 565 d | ×0.11 | 0.5 |
| Filing-delay notice, annual report filed within extension (NT 10-K) | 2025-04-01 | 1/5 | 1.2 | 565 d | ×0.11 | 0.1 |
| Going-concern doubt alleviated (history) | 2024-04-01 | 2/5 | 4.0 | 930 d | ×0.03 | 0.1 |
| Going-concern doubt (history) | 2023-11-14 | 3/5 | 14.0 | 1069 d | ×0.02 | 0.2 |
| Going-concern doubt (history) | 2023-08-14 | 3/5 | 14.0 | 1161 d | ×0.01 | 0.2 |
| Going-concern doubt (history) | 2023-04-03 | 5/5 | 30.0 | 1294 d | ×0.01 | 0.2 |
| Filing-delay notice, annual report filed within extension (NT 10-K) (history) | 2023-04-03 | 1/5 | 1.2 | 1294 d | ×0.01 | 0.0 |
| Going-concern doubt (history) | 2022-11-14 | 3/5 | 14.0 | 1434 d | ×0.00 | 0.1 |
| Going-concern doubt (history) | 2022-08-15 | 3/5 | 14.0 | 1525 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2022-05-16 | 3/5 | 14.0 | 1616 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2022-04-01 | 5/5 | 30.0 | 1661 d | ×0.00 | 0.1 |
| Filing-delay notice, annual report filed within extension (NT 10-K) (history) | 2022-04-01 | 1/5 | 1.2 | 1661 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2021-11-15 | 3/5 | 14.0 | 1798 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2021-08-17 | 3/5 | 14.0 | 1888 d | ×0.00 | 0.0 |
| Filing-delay notice, quarterly report filed within extension (NT 10-Q) (history) | 2021-08-17 | 1/5 | 1.2 | 1888 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2021-05-17 | 3/5 | 14.0 | 1980 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2021-03-31 | 5/5 | 30.0 | 2027 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2020-11-16 | 3/5 | 14.0 | 2162 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2020-08-14 | 3/5 | 14.0 | 2256 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2020-05-15 | 3/5 | 14.0 | 2347 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2020-03-30 | 5/5 | 30.0 | 2393 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2019-11-14 | 3/5 | 14.0 | 2530 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2019-08-14 | 3/5 | 14.0 | 2622 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2019-05-16 | 3/5 | 14.0 | 2712 d | ×0.00 | 0.0 |
| Filing-delay notice, quarterly report filed within extension (NT 10-Q) (history) | 2019-05-16 | 1/5 | 1.2 | 2712 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2019-04-01 | 5/5 | 30.0 | 2757 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2018-11-14 | 3/5 | 14.0 | 2895 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2018-08-14 | 3/5 | 14.0 | 2987 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2018-05-15 | 3/5 | 14.0 | 3078 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2018-04-02 | 5/5 | 30.0 | 3121 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2017-11-16 | 3/5 | 14.0 | 3258 d | ×0.00 | 0.0 |
| Filing-delay notice, quarterly report filed within extension (NT 10-Q) (history) | 2017-11-15 | 1/5 | 1.2 | 3259 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2017-10-12 | 3/5 | 14.0 | 3293 d | ×0.00 | 0.0 |
| Late quarterly report (NT 10-Q) (history) | 2017-08-15 | 3/5 | 9.8 | 3351 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2017-05-15 | 3/5 | 14.0 | 3443 d | ×0.00 | 0.0 |
| Going-concern doubt (history) | 2017-03-31 | 5/5 | 30.0 | 3488 d | ×0.00 | 0.0 |
The red flag score summarizes how many, how serious and how recent a company's verified SEC red-flag filings are. It describes filing events only. It is not a fraud score, credit rating or prediction, and not investment advice.
| Flag | Date | Cap at flag | 30d | 90d | 180d | 1y |
|---|---|---|---|---|---|---|
| Going-concern doubt alleviated | 2026-03-31 | $37.2M | +24.1% | +27.1% | +300.3% | pending |
| Going-concern doubt alleviated | 2025-04-01 | $27.8M | -1.1% | -2.7% | -35.1% | +46.5% |
| Filing-delay notice, annual report filed within extension (NT 10-K) | 2025-04-01 | $27.8M | -1.1% | -2.7% | -35.1% | +46.5% |
| Going-concern doubt alleviated | 2024-04-01 | $78.2M | +25.2% | -16.2% | -22.5% | -64.2% |
| Going-concern doubt | 2023-11-14 | $70.9M | -10.9% | +1.8% | +64.9% | -18.9% |
| Going-concern doubt | 2023-08-14 | $94.9M | -34.1% | -28.6% | -27.3% | -36.5% |
| Going-concern doubt | 2023-04-03 | $36.1M | +0.0% | +143.6% | +82.1% | +192.3% |
| Filing-delay notice, annual report filed within extension (NT 10-K) | 2023-04-03 | $36.1M | +0.0% | +143.6% | +82.1% | +192.3% |
| Going-concern doubt | 2022-11-14 | $26.9M | -39.4% | +22.8% | +19.4% | +163.9% |
| Going-concern doubt | 2022-08-15 | $22.8M | +23.4% | +27.7% | +56.7% | +141.1% |
| Going-concern doubt | 2022-05-16 | $8.7M | +171.9% | +181.0% | +228.5% | +427.4% |
| Going-concern doubt | 2022-04-01 | $12.5M | -44.8% | +61.3% | +38.1% | +167.4% |
| Filing-delay notice, annual report filed within extension (NT 10-K) | 2022-04-01 | $12.5M | -44.8% | +61.3% | +38.1% | +167.4% |
| Going-concern doubt | 2021-11-15 | $3.8M | +0.0% | -3.3% | +109.3% | +350.0% |
| Going-concern doubt | 2021-08-17 | $4.3M | +3.4% | +3.4% | +0.0% | +396.6% |
| Filing-delay notice, quarterly report filed within extension (NT 10-Q) | 2021-08-17 | $4.3M | +3.4% | +3.4% | +0.0% | +396.6% |
| Going-concern doubt | 2021-05-17 | $6.7M | -28.8% | -50.8% | -49.2% | +23.7% |
| Going-concern doubt | 2021-03-31 | $7.1M | -10.5% | -22.8% | -50.9% | +58.8% |
| Going-concern doubt | 2020-11-16 | $3.4M | -22.2% | +103.7% | +96.3% | +11.1% |
| Going-concern doubt | 2020-08-14 | $6.4M | -21.6% | -47.1% | +2.0% | -43.1% |
| Going-concern doubt | 2020-05-15 | $6.9M | -21.8% | -7.3% | -36.4% | -3.6% |
| Going-concern doubt | 2020-03-30 | $7.0M | +24.4% | +24.4% | -2.4% | +39.0% |
| Going-concern doubt | 2019-11-14 | $12.3M | -44.0% | -49.0% | -40.0% | -73.0% |
| Going-concern doubt | 2019-08-14 | $12.1M | +7.3% | -9.1% | -53.6% | -53.6% |
| Going-concern doubt | 2019-05-16 | $12.1M | -5.5% | +0.0% | -9.1% | -50.0% |
| Filing-delay notice, quarterly report filed within extension (NT 10-Q) | 2019-05-16 | $12.1M | -5.5% | +0.0% | -9.1% | -50.0% |
| Going-concern doubt | 2019-04-01 | $11.0M | +0.9% | -5.4% | +6.3% | -48.6% |
| Going-concern doubt | 2018-11-14 | $11.5M | +1.9% | +31.4% | +1.0% | -4.8% |
| Going-concern doubt | 2018-08-14 | $9.8M | +6.4% | +11.7% | +33.0% | +17.0% |
| Going-concern doubt | 2018-05-15 | $3.6M | +25.0% | +235.7% | +275.0% | +292.9% |
| Going-concern doubt | 2018-04-02 | $7.5M | -55.0% | -40.0% | +75.0% | +88.3% |
| Going-concern doubt | 2017-11-16 | $1.7M | +114.3% | +600.0% | +135.7% | +685.7% |
| Filing-delay notice, quarterly report filed within extension (NT 10-Q) | 2017-11-15 | $1.5M | +80.0% | +553.3% | +86.7% | +600.0% |
| Going-concern doubt | 2017-10-12 | $1.6M | +60.0% | +1050.0% | +350.0% | +920.0% |
| Late quarterly report (NT 10-Q) | 2017-08-15 | $3.9M | -63.6% | -70.9% | +87.3% | +70.9% |
| Going-concern doubt | 2017-05-15 | $28.2M | +0.4% | -78.0% | -93.6% | -86.8% |
| Going-concern doubt | 2017-03-31 | $37.2M | -40.0% | -46.0% | -94.3% | -80.3% |
Stock return after each flag; pending = window not yet elapsed; n/a = no price data (for older flags often because the stock no longer trades).
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