NOTE 3 - DISCONTINUED OPERATIONS (Detail) (USD $)	3 Months Ended		9 Months Ended		1 Months Ended
	Sep. 29, 2012	Sep. 30, 2011	Sep. 29, 2012	Sep. 30, 2011	Nov. 02, 2012 Subsequent Event [Member] Field Solutions [Member]	Nov. 02, 2012 Land and Right-of-Way Division [Member]
Discontinued Operation, Amounts of Material Contingent Liabilities Remaining	$ 500,000		$ 500,000
Assets Held-for-sale, at Carrying Value					7,500,000
Amount of Working Capital at Closing of Sale					4,500,000
Note Receivable Payable to Company for Sale of Asset					3,000,000
Term of Note Receivable					4 years
Discontinued Operation, Intercompany Amounts with Discontinued Operation before Disposal Transaction, Costs	3,600,000
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax	$ (3,717,000)	$ (918,000)	$ (4,779,000)	$ (1,263,000)		$ 1,100,000