Note 3 - Supplemental Balance Sheet Information (Detail) - Costs and Estimated Earnings on Uncompleted Contracts (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Costs incurred on uncompleted contracts	$ 599,242	$ 569,856
Estimated earnings to date	171,983	120,595
Subtotal	771,225	690,451
Less – billings to date	(727,977)	(633,519)
Total	43,248	56,932
Costs and estimated earnings in excess of billings	67,683	69,544
Billings in excess of costs and estimated earnings	(24,435)	(12,612)
Total	$ 43,248	$ 56,932