Quarterly report pursuant to Section 13 or 15(d)

Cover Page

v3.23.1
Cover Page - shares
 3 Months Ended
Mar. 31, 2023
May 15, 2023
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Transition Report false  
Document Quarterly Report true  
Document Fiscal Year Focus 2023  
Document Period End Date Mar. 31, 2023  
Document Fiscal Period Focus Q1  
Current Fiscal Year End Date --12-31  
Entity Registrant Name BLACK SPADE ACQUISITION CO  
Entity Central Index Key 0001851908  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company true  
Entity File Number 001-40616  
Entity Incorporation, State or Country Code E9  
Entity Address, Address Line One Suite 2902, 29/F, The Centrium  
Entity Address, Address Line Two 60 Wyndham Street  
Entity Address, City or Town Central  
City Area Code 852  
Local Phone Number 3955 1316  
Entity Tax Identification Number 00-0000000  
Entity Address, Postal Zip Code 00000  
Entity Address, Country HK  
Common Class A [Member]    
Document Information [Line Items]    
Title of 12(b) Security Class A ordinary shares, par value $0.0001 per share  
Trading Symbol BSAQ  
Security Exchange Name NYSE  
Entity Common Stock, Shares Outstanding   16,900,000
Common Class B [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   4,225,000
Units [Member]    
Document Information [Line Items]    
Title of 12(b) Security Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant  
Trading Symbol BSAQU  
Security Exchange Name NYSE  
Redeemable Warrants [Member]    
Document Information [Line Items]    
Title of 12(b) Security Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50  
Trading Symbol BSAQWS  
Security Exchange Name NYSE