Employee Benefit Plan  | 
3 Months Ended | 12 Months Ended | 
|---|---|---|
Mar. 31, 2023  | 
Dec. 31, 2022  | 
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| Employee Benefit Plan [Abstract] | ||
| Employee Benefit Plan | 
 14. Employee Benefit Plan 
 Nauticus offers a 401(k) plan which permits eligible employees to contribute portions of their compensation to an investment trust. The Company makes contributions to the plan totaling 3% of employees’ gross salaries and such contributions vest immediately. The 401(k) plan provides several investment options, for which the employee has sole investment discretion. The Company’s cost for the 401(k) plan was $117,342 and $78,190 for the three months ended March 31, 2023 and 2022, respectively.  | 
 12. Employee Benefit Plan 
 Nauticus offers a 401(k) plan which permits eligible employees to contribute portions of their compensation to an investment trust. The Company makes contributions to the plan totaling 3% of employees’ gross salaries and such contributions vest immediately. The 401(k) plan provides several investment options, for which the employee has sole investment discretion. The Company’s cost for the 401(k) plan was $367,796 and $210,945 at December 31, 2022 and 2021, respectively.  | 
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- References No definition available. 
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- Definition The entire disclosure for retirement benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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