Operating Segments (Tables)

9 Months Ended

Jun. 30, 2023

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Segment information for the three and nine months ended June 30, 2023 and 2022 is as follows:

		Three Months Ended June 30, 2023
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Corporate		Total
Revenues		$	141,615	$	318,011	$	57,057	$	67,768	$	—	$	584,451
Cost of services		114,440		260,679		42,851		58,872		—		476,842
Gross profit		27,175		57,332		14,206		8,896		—		107,609
Selling, general and administrative		13,680		41,939		7,066		6,284		5,331		74,300
Contingent consideration		—		70		—		—		—		70
Gain on sale of assets		(1)		(56)		(1,010)		(13)		—		(1,080)
Operating income (loss)		$	13,496	$	15,379	$	8,150	$	2,625	$	(5,331)	$	34,319
Other data:
	Depreciation and amortization expense	$	498	$	4,609	$	1,300	$	402	$	69	$	6,878
	Capital expenditures	$	261	$	2,461	$	918	$	800	$	169	$	4,609
	Total assets	$	182,117	$	381,840	$	179,363	$	84,101	$	72,307	$	899,728

		Three Months Ended June 30, 2022
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Corporate		Total
Revenues		$	144,748	$	301,763	$	39,837	$	80,953	$	—	$	567,301
Cost of services		128,952		248,928		33,726		72,895		—		484,501
Gross profit		15,796		52,835		6,111		8,058		—		82,800
Selling, general and administrative		11,544		37,237		6,484		7,788		4,037		67,090
Contingent consideration		—		70		—		—		—		70
Loss (gain) on sale of assets		(1)		6		—		(2)		—		3
Operating income (loss)		$	4,253	$	15,522	$	(373)	$	272	$	(4,037)	$	15,637
Other data:
	Depreciation and amortization expense	$	394	$	3,863	$	1,427	$	645	$	43	$	6,372
	Capital expenditures	$	424	$	1,115	$	3,071	$	372	$	—	$	4,982
	Total assets	$	196,520	$	376,328	$	152,405	$	111,782	$	47,357	$	884,392