SELECTED FINANCIAL STATEMENT INFORMATION (Details 1) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2012	Oct. 31, 2011
Costs incurred on uncompleted contracts	$ 5,396	$ 4,443
Estimated earnings	4,886	4,206
Total cost incurred and estimated earnings on uncompleted percentage-of completed contracts	10,282	8,649
Less: Billings to date	(5,691)	(4,876)
Cost and estimated earnings on uncompleted contracts, net	4,591	3,773
Included in the accompanying Condensed Consolidated Balance Sheets under the following captions:
Accounts receivable, net (costs and estimated earnings in excess of billings)	4,591	3,773
Accrued expenses and other current liabilities (billings in excess of costs and estimated earnings)	0	0
Cost and estimated earnings on uncompleted contracts, net	$ 4,591	$ 3,773