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

Note 5 - Fair Value Measurement (Details Textual) - $ / shares	3 Months Ended
	Jan. 31, 2022	Oct. 31, 2021	Dec. 06, 2018
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 11.50		$ 11.50
Public Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)	13,017,677	13,017,677
Private Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)	0	0
Warrant To Purchase Class A Common Stock [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 11.50
Class of Warrant or Right, Redemption Price (in dollars per share)	0.01
Class of Warrant or Right, Redemption, Common Stock Price Trigger (in dollars per share)	$ 18.00
Class of Warrant or Right, Redemption, Trading Period (Day)	20 days
Class of Warrant or Right, Redemption, Trading Period Maximum (Day)	30 days