v3.26.1
Summary of significant accounting policies - Assets by Geographic Location (Details) - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Assets $ 68,150,602 $ 69,537,581
United States    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Assets 45,900,432 46,087,727
Canada    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Assets 12,362,290 12,686,259
Europe    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Assets 1,857,621 2,393,191
Rest of World    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Assets $ 8,030,259 $ 8,370,404