Accounts Receivable (Details) (USD $)	Jul. 31, 2012	Oct. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Government Contract Receivable	$ 371,000	$ 52,000
Government Contract Receivable, Unbilled Amounts	1,142,000	1,012,000
us government accounts receivable total	1,513,000	1,064,000
Contract Receivable	13,381,000	10,330,000
Unbilled Contracts Receivable	5,346,000	10,556,000
commercial customers accounts receivable	18,727,000	20,886,000
Accounts Receivable, Net, Current	20,240,000	21,950,000
Accounts Receivable, Related Parties, Current	11,000,000	7,100,000
Allowance for Doubtful Accounts Receivable, Current	$ 500,000	$ 600,000