Note 4 - Disaggregation of Revenue (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Disaggregation of Revenue [Table Text Block]

2020	Transportation		Water		Specialty		Materials		Total
California	$	681,955	$	44,068	$	230,805	$	222,021	$	1,178,849
Federal		6,579		1,774		108,827		—		117,180
Heavy Civil		671,013		40,260		45,215		—		756,488
Midwest		140,433		156		100,601		—		241,190
Northwest		518,009		5,075		169,324		142,764		835,172
Water and Mineral Services		—		348,984		68,619		15,977		433,580
Total	$	2,017,989	$	440,317	$	723,391	$	380,762	$	3,562,459
2019	Transportation		Water		Specialty		Materials		Total
California	$	581,074	$	25,005	$	187,556	$	198,465	$	992,100
Federal		688		1,171		83,844		—		85,703
Heavy Civil		671,923		13,215		2,206		—		687,344
Midwest		100,235		39		153,548		—		253,822
Northwest		538,229		5,964		211,094		140,621		895,908
Water and Mineral Services		—		423,336		89,289		18,104		530,729
Total	$	1,892,149	$	468,730	$	727,537	$	357,190	$	3,445,606
2018	Transportation		Water		Specialty		Materials		Total
California	$	607,737	$	52,757	$	143,471	$	213,673	$	1,017,638
Federal		683		2,116		41,471		—		44,270
Heavy Civil		788,722		19,472		—		—		808,194
Midwest		84,523		1,930		222,565		—		309,018
Northwest		465,085		3,882		159,516		138,924		767,407
Water and Mineral Services		—		265,704		58,643		16,157		340,504
Total	$	1,946,750	$	345,861	$	625,666	$	368,754	$	3,287,031