Concrete Pumping Holdings, Inc. Quarterly report pursuant to Section 13 or 15(d)

Note 15 - Earnings Per Share (Details Textual) - $ / shares shares in Millions	3 Months Ended	9 Months Ended
	Jul. 31, 2021	Jul. 31, 2021	Dec. 06, 2018
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 11.50	$ 11.50	$ 11.50
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	13.1	13.0
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)		3.0
Vested Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)		1.2
Unvested Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)		0.5
Series A Preferred Stocks [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	2.5	2.5