Restricted Investments in Marketable Securities

9 Months Ended

Jun. 30, 2011

Restricted Investments in Marketable Securities [Abstract]

RESTRICTED INVESTMENTS IN MARKETABLE SECURITIES

4. RESTRICTED INVESTMENTS IN MARKETABLE SECURITIES

     Restricted investments in marketable securities at June 30, 2011 and September 30, 2010 consist of certificates of deposit, which are classified as held-to-maturity. At June 30, 2011 and September 30, 2010, the fair value of these investments approximated their cost basis.

     At June 30, 2011, restricted investments in marketable securities totaling approximately $1.6 million consist of three certificates of deposit and are related to irrevocable standby letters of credit connected to fleet rentals and two office leases with expiration dates in 2013 and 2016, and are classified as non-current assets. The certificates of deposit related to fleet rentals and the office lease expiring in 2016 automatically renew annually and the certificate of deposit related to the office lease that expires in 2013 renews automatically every 30 days.

     Restricted investments in marketable securities also consist of two certificates of deposit totaling $617,100 and are related to the Company’s corporate credit card agreement and an irrevocable standby letter of credit connected to the short-term portion of an office lease with an expiration date in 2013, and are classified as current assets. The certificate of deposit related to the Company’s credit card agreement automatically renews every three months and the certificate of deposit related to the office lease renews automatically every 30 days.

     At September 30, 2010, restricted investments in marketable securities totaling $401,550 consisted of an investment certificate of deposit that automatically renewed every 30 days and was related to a letter of credit connected to an office lease with an expiration date in 2013 and was classified as a non-current asset. Restricted investments in marketable securities also consisted of a $200,000 certificate of deposit that renewed every three months and was related to the Company’s corporate credit card agreement and was classified as a current asset.