Note 3 - Supplemental Balance Sheet Information (Detail) - Costs and Estimated Earnings on Uncompleted Contracts (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Costs incurred on uncompleted contracts	$ 667,231	$ 599,242
Estimated earnings to date	184,322	171,983
Subtotal	851,553	771,225
Less – billings to date	(812,590)	(727,977)
Total	38,963	43,248
Costs and estimated earnings in excess of billings	70,515	67,683
Billings in excess of costs and estimated earnings	(31,552)	(24,435)
Total	$ 38,963	$ 43,248