| Metric | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | FY2020 | FY2019 | FY2018 |
|---|---|---|---|---|---|---|---|---|
| Sales | $298.3M+17.1% | $254.7M-8.7% | $279.1M-17.3% | $337.6M+24.9% | $270.3M+37.3% | $197.0M-10.5% | $220.1M+5.7% | $208.3M |
| Lower of cost or net realizable value inventory adjustments | $4.4M+12.3% | $4.0M-39.0% | $6.5M | $0 | $0-100.0% | $4.0M+121.8% | $1.8M+5.8% | $1.7M |
| Gross Margin | $54.8M+88.5% | $29.1M-21.1% | $36.8M-73.9% | $141.4M+153.6% | $55.8M+429.6% | $10.5M-75.8% | $43.5M+13.6% | $38.3M |
| Selling and administrative | $36.7M+11.3% | $33.0M+1.7% | $32.4M+2.0% | $31.8M+32.5% | $24.0M-5.8% | $25.5M+8.2% | $23.6M+15.3% | $20.4M |
| Accretion of asset retirement obligation | $2.6M+4.6% | $2.5M+16.3% | $2.1M+9.1% | $2.0M+5.5% | $1.9M+6.9% | $1.7M-3.1% | $1.8M+7.5% | $1.7M |
| Impairment of long-lived assets | $1.9M-82.6% | $10.7M-75.3% | $43.3M | $0 | $0 | — | — | — |
| (Gain) loss on sale or disposal of assets | -$1.2M-160.2% | $2.0M+141.9% | $807K-89.2% | $7.5M+393.9% | -$2.5M+40.2% | -$4.3M-1331.9% | $345K+496.6% | -$87K |
| Other operating income | -$4.8M+7.7% | -$5.2M-292.4% | -$1.3M+9.3% | -$1.5M | — | — | — | — |
| Other operating expense | $9.0M+48.4% | $6.0M+73.3% | $3.5M-43.8% | $6.2M+3384.8% | $178K-75.8% | $735K-48.4% | $1.4M+87.9% | $758K |
| Operating Income (Loss) | $10.7M+153.7% | -$19.9M+54.8% | -$44.0M-146.1% | $95.4M+195.7% | $32.3M+238.8% | -$23.2M-242.1% | $16.4M+5.6% | $15.5M |
| Equity in loss of unconsolidated entities | -$374K-25.1% | -$299K+38.5% | -$486K-170.5% | $689K | $0 | $0 | — | — |
| Interest expense, net | -$232K-107.1% | -$112K | $0+100.0% | -$101K+93.1% | -$1.5M+65.8% | -$4.3M-41.5% | -$3.0M+21.4% | -$3.9M |
| Interest income | $2.4M+42.1% | $1.7M+474.5% | $298K+69.3% | $176K | $0 | $0 | — | — |
| Other (expense) income | -$762K-1793.3% | $45K-52.6% | $95K-68.9% | $305K+535.4% | $48K-87.5% | $384K+8.2% | $355K+40.9% | $252K |
| Income (Loss) Before Income Taxes | $11.7M+163.4% | -$18.5M+58.0% | -$44.1M-145.7% | $96.5M+135.6% | $41.0M+250.9% | -$27.1M-298.4% | $13.7M | — |
| Income Tax (Expense) Benefit | -$544K+99.7% | -$194.3M-2416.5% | $8.4M+134.5% | -$24.3M-111.6% | $208.9M+4177480.0% | -$5K+90.6% | -$53K+50.9% | -$108K |
| Net Income (Loss) | $11.2M+105.3% | -$212.8M-496.7% | -$35.7M | — | — | -$27.2M-299.2% | $13.6M | — |
| Basic (in shares) | 13.01B+1.0% | 12.88B+0.9% | 12.76B-3.0% | 13.15B+0.4% | 13.10B+0.8% | 12.99B+0.7% | 12.90B+0.8% | 12.81B |
| Diluted (in shares) | 13.17B+2.3% | 12.88B+0.9% | 12.76B-5.1% | 13.45B+0.5% | 13.39B+3.1% | 12.99B-0.9% | 13.11B+0.0% | 13.10B |
| Basic (dollar per share) | $0.86+105.2% | -$16.53-490.4% | -$2.80-151.0% | $5.49-71.2% | $19.07+1012.4% | -$2.09-297.2% | $1.06+15.2% | $0.92 |
| Diluted (dollar per share) | $0.85+105.1% | -$16.53-490.4% | -$2.80-152.1% | $5.37-71.2% | $18.66+992.8% | -$2.09-301.0% | $1.04+15.6% | $0.90 |
| Mineral [Member] | ||||||||
| Cost of goods sold | $12.2M+6.4% | $11.5M+5.9% | $10.8M+11.1% | $9.7M+5.0% | $9.3M-1.6% | $9.4M+9.4% | $8.6M-92.9% | $122.0M |
| Freight costs [Member] | ||||||||
| Warehouse and handling costs [Member] | ||||||||
Source: SEC EDGAR XBRL. % change vs prior period shown where available.
Source: SEC EDGAR 10-K and 10-Q filings. Up to 10 years annual / 16 quarters shown.