Note 7 - Contract Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

			As Restated
December 31,	2019		2018
Costs in excess of billings and estimated earnings	$	100,761	$	84,714
Contract retention		110,680		99,533
Total contract assets	$	211,441	$	184,247

Balance at December 31, 2018 (As Restated)	$	184,247
Change in the measure of progress on projects, net		1,078,884
Revisions in estimates, net		(91,301	)
Billings		(923,602	)
Receipts related to contract retention		(36,787	)
Balance at December 31, 2019	$	211,441

Balance at January 1, 2018 (As Restated)	$	153,606
Change in the measure of progress on projects, net		925,300
Acquired contract assets		45,353
Revisions in estimates, net		(53,472	)
Billings		(823,408	)
Receipts related to contract retention		(63,132	)
Balance at December 31, 2018 (As Restated)	$	184,247

			As Restated
December 31,	2019		2018
Billings in excess of costs and estimated earnings, net of retention	$	86,736	$	101,478
Provisions for losses		9,001		7,533
Total contract liabilities	$	95,737	$	109,011

Balance at December 31, 2018 (As Restated)	$	109,011
Change in the measure of progress on projects, net		(1,629,377	)
Revisions in estimates, net		(13,910	)
Billings		1,628,464
Change in provision for loss, net		1,549
Balance at December 31, 2019	$	95,737

Balance at January 1, 2018 (As Restated)	$	86,252
Change in the measure of progress on projects, net		(1,310,637	)
Acquired contract liabilities		7,974
Revisions in estimates, net		(32,342	)
Billings		1,351,220
Change in provision for loss, net		6,544
Balance at December 31, 2018 (As Restated)	$	109,011