Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
2 Months Ended
Jun. 30, 2017
Nov. 06, 2017
Document And Entity Information    
Entity Registrant Name Black Ridge Acquisition Corp.  
Entity Central Index Key 0001708341  
Document Type 10-Q  
Trading Symbol BRACU  
Document Period End Date Jun. 30, 2017  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity a Well-known Seasoned Issuer No  
Entity a Voluntary Filer No  
Entity's Reporting Status Current No  
Entity Filer Category Non-accelerated Filer  
Entity Common Stock, Shares Outstanding   17,695,000
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2017