Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

Document And Entity Information - shares
7 Months Ended
Sep. 30, 2020
Dec. 10, 2020
Document Information Line Items    
Entity Registrant Name Mallard Acquisition Corp.  
Document Type 10-Q  
Current Fiscal Year End Date --12-31  
Entity Common Stock, Shares Outstanding   14,162,500
Amendment Flag false  
Entity Central Index Key 0001805795  
Entity Current Reporting Status No  
Entity Filer Category Non-accelerated Filer  
Document Period End Date Sep. 30, 2020  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q3  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Shell Company true  
Entity Ex Transition Period false  
Document Transition Report false  
Entity File Number 001-39611  
Entity Incorporation, State or Country Code DE  
Entity Interactive Data Current Yes