Concrete Pumping Holdings, Inc. Annual report pursuant to Section 13 and 15(d)

Note 19 - Related-party Transactions (Details Textual) - USD ($)			1 Months Ended	11 Months Ended	12 Months Ended	24 Months Ended
	Sep. 01, 2019	May 14, 2019	Dec. 05, 2018	Oct. 31, 2019	Oct. 31, 2018	Aug. 31, 2019
Business Combination, Acquisition Related Costs			$ 14,167,000	$ 1,521,000	$ 7,590,000
PGP Advisors, LLC [Member]
Business Combination, Acquisition Related Costs					500,000
PGP Advisors, LLC [Member] \| Management Services Agreement [Member]
Related Party Transaction, Amounts of Transaction, Annual Fee	$ 2,000,000					$ 4,000,000
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party			$ 0		$ 4,300,000
Public Offering [Member]
Stock Issued During Period, Shares, New Issues		18,098,166
Shares Issued, Price Per Share		$ 4.50
Public Offering [Member] \| Directors, Officers, Stockholders [Member]
Stock Issued During Period, Shares, New Issues		3,980,166
Aggregate Common Stock Purchased		3,980,166
Shares Issued, Price Per Share		$ 4.50
Percentage of Shares Issued		25.00%