Loss Per Common Share (Details) - shares |
12 Months Ended | |||
|---|---|---|---|---|
Jan. 03, 2019 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Stockholders' equity, Reverse stock split | one-for-ten reverse stock split | |||
| Common shares | ||||
| Shares with anti-dilutive effect, not included in calculation of earnings per share | 569,998 | 843,097 | 664,709 | |
| Convertible Preferred Stock | ||||
| Shares with anti-dilutive effect, not included in calculation of earnings per share | 1,549 | 227,496 | 349,900 | |