Consolidated Balance Sheets (Parenthetical) - $ / shares |
Jun. 30, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Consolidated Balance Sheets | ||
| Common stock, par value (in dollars per share) | $ 4 | $ 4 |
| Common stock, shares authorized (in shares) | 10,000,000 | 10,000,000 |
| Common stock, shares issued (in shares) | 1,466,800 | 1,466,516 |
| Common stock, shares outstanding (in shares) | 1,466,800 | 1,466,516 |