Registration of securities issued in business combination transactions

Document And Entity Information

v3.22.1
Document And Entity Information
3 Months Ended
Mar. 31, 2022
Document Information Line Items  
Entity Registrant Name CLEANTECH ACQUISITION CORP.
Document Type S-4/A
Amendment Flag true
Amendment Description Amendment No. 4
Entity Central Index Key 0001849820
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company true
Entity Ex Transition Period false
Entity Incorporation, State or Country Code DE