10-Q NET INCOME (LOSS) PER COMMON SHARE- Schedule of Excluded Common Stock Equivalent Shares (Details) - shares |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2022 |
Dec. 31, 2021 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Antidilutive securities excluded from computation of earnings per share (in shares) | 2,694,300 | |
| LINICO Corporation | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Antidilutive securities excluded from computation of earnings per share (in shares) | 2,650,238 | |
| Aqua Metals Inc | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Antidilutive securities excluded from computation of earnings per share (in shares) | 349,465 |