Credit Facility	6 Months Ended
Jan. 31, 2015
Line of Credit Facility [Abstract]
Credit Facility	Credit Facility In November 2014, we entered into an uncommitted $15,000,000 secured credit facility (the "Credit Facility") with one bank that provides for the extension of credit to us in the form of revolving loans, including letters of credit and standby letters of credit, at any time and from time to time during its term, in an aggregate principal amount at any time outstanding not to exceed $15,000,000. Subject to covenant limitations, the Credit Facility may be used for working capital, capital expenditures and other general corporate purposes. The Credit Facility, which expires October 31, 2015, can be terminated by us or the bank at any time without penalty. At January 31, 2015, we had $2,268,000 of standby letters of credit outstanding related to our guarantees of future performance on certain customer contracts and no outstanding commercial letters of credit. Interest expense, including amortization of deferred financing costs, recorded during the three months ended January 31, 2014 was $167,000. There was no interest expense recorded during the three months ended January 31, 2015. During the six months ended January 31, 2015 and 2014 interest expense was $198,000 and $353,000 respectively, all of which related to a committed $100,000,000 secured revolving credit facility that expired on October 31, 2014.

Credit Facility

6 Months Ended

Jan. 31, 2015

In November 2014, we entered into an uncommitted $15,000,000 secured credit facility (the "Credit Facility") with one bank that provides for the extension of credit to us in the form of revolving loans, including letters of credit and standby letters of credit, at any time and from time to time during its term, in an aggregate principal amount at any time outstanding not to exceed $15,000,000. Subject to covenant limitations, the Credit Facility may be used for working capital, capital expenditures and other general corporate purposes. The Credit Facility, which expires October 31, 2015, can be terminated by us or the bank at any time without penalty. At January 31, 2015, we had $2,268,000 of standby letters of credit outstanding related to our guarantees of future performance on certain customer contracts and no outstanding commercial letters of credit.

Interest expense, including amortization of deferred financing costs, recorded during the three months ended January 31, 2014 was $167,000. There was no interest expense recorded during the three months ended January 31, 2015. During the six months ended January 31, 2015 and 2014 interest expense was $198,000 and $353,000 respectively, all of which related to a committed $100,000,000 secured revolving credit facility that expired on October 31, 2014.