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Capital Structure, Financial Risk and Related Items - Share Capital (Details) | Apr. 12, 2026 DKK (kr) shares | Apr. 13, 2021 DKK (kr) shares | Mar. 28, 2017 DKK (kr) shares | Dec. 31, 2021 item Vote kr / shares shares | Dec. 31, 2019 shares | Mar. 29, 2019 DKK (kr) shares | Mar. 17, 2016 DKK (kr) shares
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Share Capital |  |  |  |  |  |  |
Par value (in euros per share) | kr / shares |  |  |  | kr 1 |  |  |
Number Of Shares Authorised |  |  |  | 65,718,456 |  |  |
Number Of Votes | Vote |  |  |  | 1 |  |  |
Number of shares issued |  |  |  |  | 3,277,500 |  |
Warrants authorized to issue |  |  | 500,000 |  |  |  |
Capital increases in cash | kr |  | kr 750,000 | kr 500,000 |  |  |  |
Warrants issued | item |  |  |  | 0 |  |  |
Warrants remain available for issue | item |  |  |  | 896,938 |  |  |
Warrants remain available for reissue | item |  |  |  | 21,739 |  |  |
Number of shares authorized to be repurchased |  |  |  |  |  |  | 500,000
Nominal value of shares repurchases | kr |  | kr 750,000 | kr 500,000 |  |  |  | kr 500,000
Forecast |  |  |  |  |  |  |
Share Capital |  |  |  |  |  |  |
New shares issued on conversion of loan | 2,600,000 |  |  |  |  |  |
Time limit for conversion of debt to equity | 5 years |  |  |  |  |  |
First authorization |  |  |  |  |  |  |
Share Capital |  |  |  |  |  |  |
Warrants issued | item |  |  |  | 438,973 |  |  |
Warrants reissued | item |  |  |  | 60,394 |  |  |
Number of shares authorized to be repurchased |  |  |  |  |  | 500,000 |
Nominal value of shares repurchases | kr |  |  |  |  |  | kr 500,000 |
Second authorization |  |  |  |  |  |  |
Share Capital |  |  |  |  |  |  |
Warrants issued | item |  |  |  | 414,089 |  |  |
Warrants reissued | item |  |  |  | 20,439 |  |  |
Number of shares authorized to be repurchased |  | 500,000 |  |  |  |  |
Nominal value of shares repurchases | kr |  | kr 500,000 |  |  |  |  |
Top of range [member] |  |  |  |  |  |  |
Share Capital |  |  |  |  |  |  |
Number Of Shares Authorised |  |  |  | 5,500,000 |  |  |
Number of shares issued |  |  |  | 2,000,000 |  |  |
Top of range [member] | Forecast |  |  |  |  |  |  |
Share Capital |  |  |  |  |  |  |
Maximum amount of loans against bonds or other financial instruments | kr | kr 6,500,000,000 |  |  |  |  |  |
Value of convertible loans | kr | kr 2,600,000 |  |  |  |  |  |

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