Earnings (Loss) Per Share - Summary of Computation of Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Net loss attributable to common stockholders
Net loss attributable to Paragon 28, Inc.	$ (9,603)	$ (1,884)	$ (18,839)	$ (2,411)
Less: Dividends on Series B convertible preferred stock	0	(473)	0	(942)
Net loss attributable to common stockholders	$ (9,603)	$ (2,357)	$ (18,839)	$ (3,353)
Weighted-average common stock outstanding:
Basic	76,481,709	46,919,443	76,465,082	46,885,995
Diluted	76,481,709	46,919,443	76,465,082	46,885,995
Loss per share:
Basic	$ (0.13)	$ (0.05)	$ (0.25)	$ (0.07)
Diluted	$ (0.13)	$ (0.05)	$ (0.25)	$ (0.07)