Property and Equipment (Details Textual) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2011
Property and Equipment (Textual) [Abstract]
Cash purchase of office building	$ 1,955,000
Depreciation Expense		136,000	112,000	385,000	344,000
Cost of maintenance & repair		92,000	89,000	263,000	208,000
Rent expense included in the selling, general and administrative expenses of continuing operations		101,000	109,000	319,000	332,000
Rent expense incurred at project sites and included in cost of revenues		$ 1,465,000	$ 1,094,000	$ 5,719,000	$ 1,904,000