Annual report pursuant to Section 13 and 15(d)

Stockholders' equity (Details)

v3.24.0.1
Stockholders' equity (Details) - $ / shares
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Equity [Abstract]    
Restricted stock units, outstanding number of units, beginning balance 625,000 12,500
Restricted stock units, weighted average grant date fair value, beginning balance $ 1.87 $ 3.36
Grants of restricted stock units 120,000 670,000
Grants of restricted stock units, weighted average grant date fair value $ 2.27 $ 1.92
Vested restricted stock units (157,500) (57,500)
Vested restricted stock units, weighted average grant date fair value $ (2.43) $ (2.73)
Resricted stock units, Outstanding Number of units, Ending Balance 587,500 625,000
Restricted stock units, weighted average grant date fair value, ending balance $ 1.81 $ 1.87