Note 4 - Cost and Estimated Earnings on Uncompleted Contracts (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Cost And Estimated Earnings On Uncompleted Contracts [Table Text Block]

	December 31,
	2019			2018
	(Dollars in thousands)
Costs and estimated earnings incurred on uncompleted contracts	$	196,550		$	278,797
Less billings to date		(160,940	)		(255,069	)
Total	$	35,610		$	23,728

Cost and Estimated Earnings on Uncompleted Contracts Included in Consolidated Balance Sheets [Table Text Block]

	December 31,
	2019			2018
	(Dollars in thousands)
Costs and estimated earnings in excess of billings on uncompleted contracts	$	38,365		$	42,130
Billings in excess of costs and estimated earnings on uncompleted contracts		(2,755	)		(18,402	)
Total	$	35,610		$	23,728