v3.26.1
Summary of significant accounting policies - Assets by Geographic Location (Details) - USD ($)
Jun. 30, 2026
Dec. 31, 2025
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Assets $ 67,807,131 $ 69,537,581
United States    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Assets 46,896,342 46,087,727
Canada    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Assets 11,217,749 12,686,259
Europe    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Assets 2,145,799 2,393,191
Rest of World    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Assets $ 7,547,241 $ 8,370,404