Note 18 - Segment Reporting - Operating Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Oct. 31, 2023
Revenue	$ 97,711	$ 93,575
Interest expense and amortization of deferred financing costs	(6,463)	(6,871)
Reportable depreciation and amortization	(14,097)	(14,449)
Income (loss) before income taxes	(4,837)	7,119
Depreciation and amortization	14,097	14,449
Total capital expenditures	17,766	17,120
Total Assets	894,767		$ 904,525
Long lived assets	432,671		427,648
UNITED STATES
Revenue	82,303	80,867
Total Assets	768,777		785,402
Long lived assets	371,425		371,689
UNITED KINGDOM
Revenue	15,408	12,708
Total Assets	125,990		119,123
Long lived assets	61,246		$ 55,959
Operating Segments [Member]
Revenue	97,711	93,575
Segment EBITDA	15,592	23,883
Reportable depreciation and amortization	(14,097)	(14,449)
Depreciation and amortization	14,097	14,449
Total capital expenditures	15,206	17,101
Operating Segments [Member] | US Concrete Pumping [Member]
Revenue	66,683	67,187
Segment EBITDA	7,036	15,688
Interest expense and amortization of deferred financing costs	(5,754)	(6,178)
Reportable depreciation and amortization	(10,230)	(10,587)
Depreciation and amortization	10,230	10,587
Total capital expenditures	7,932	6,641
Operating Segments [Member] | UK Concrete Pumping [Member]
Revenue	15,408	12,708
Segment EBITDA	3,176	2,380
Total capital expenditures	4,227	7,169
Operating Segments [Member] | US Concrete Waste Management Services [Member]
Revenue	15,620	13,680
Segment EBITDA	5,380	5,815
Reportable depreciation and amortization	(2,059)	(2,035)
Depreciation and amortization	2,059	2,035
Total capital expenditures	3,047	3,291
Operating Segments [Member] | UK Operations [Member]
Interest expense and amortization of deferred financing costs	(709)	(693)
Reportable depreciation and amortization	(1,808)	(1,827)
Depreciation and amortization	1,808	1,827
Segment Reconciling Items [Member] | US Concrete Waste Management Services [Member]
Revenue	100	92
Intersegment Eliminations [Member]
Revenue	(100)	(92)
Other	131	4,556
Other Operating Segments and Intersegment Eliminations [Member]
Segment EBITDA		4,556
Reportable depreciation and amortization		0
Depreciation and amortization		0
Total capital expenditures	$ 2,560	$ 19