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Organization (Details Narrative)
$ / shares in Units, $ in Millions
Nov. 13, 2024
USD ($)
$ / shares
Merger Agreement [Member]  
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]  
Merger agreement termination rights description The Merger Agreement contains certain termination rights of each of Pulmatrix and Cullgen. Upon termination of the Merger Agreement under specified circumstances, Pulmatrix may be required to pay Cullgen a termination fee of $420,000, and in certain other circumstances, Cullgen may be required to pay Pulmatrix a termination fee of either $2,800,000 or $8,400,000. At the Effective Time, the board of directors of Pulmatrix is expected to consist of six members, one of which will be a director of Pulmatrix, as designated by Cullgen, and the remainder of which will be designated by Cullgen.
Merger Agreement [Member] | Pre-Merger Cullgen Inc [Member]  
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]  
Minority interest ownership percentage by noncontrolling owners 96.40%
Merger Agreement [Member] | Pre-Merger Pulmatrix Inc [Member]  
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]  
Minority interest ownership percentage by parent 3.60%
Merger Agreement [Member] | Pulmatrix Inc [Member]  
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]  
Valuation amount $ 10.5
Enterprise value 8.0
Cash 2.5
Merger Agreement [Member] | Cullgen Inc [Member]  
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]  
Valuation amount $ 280.0
Common Stock [Member] | Merger Agreement [Member]  
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]  
Price per share | $ / shares $ 10.00
Minimum [Member]  
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]  
Cash dividend $ 2.5