8.                       Debt Instruments

On May 13, 2011, the Company entered into a $30 million credit facility with a syndicate of financial institutions. The amount of borrowings available under the credit facility at any time is based on the Company’s monthly accounts receivable balance at such time, and the amounts borrowed are collateralized by the Company’s personal property (including such accounts receivable but excluding intellectual property). Under the credit facility, the Company can request up to $5 million in letters of credit be issued by the financial institutions.

The credit facility contains customary events of default, conditions to borrowing and covenants, including restrictions on the Company’s ability to dispose of assets, make acquisitions, incur debt, incur liens and make distributions to stockholders. The credit facility also includes a financial covenant requiring the maintenance of minimum liquidity of at least $5 million. During the continuance of an event of a default, the lenders may accelerate amounts outstanding, terminate the credit facility and foreclose on all collateral.

As of April 30, 2013, the Company had $828,000 in letters of credit outstanding and had $29.17 million of available borrowing capacity under the credit facility. On December 30, 2011, the Company entered into a cash collateral agreement in connection with the issuance of letters of credit which were used to satisfy deposit requirements under facility leases. As of April 30, 2013, the $828,000 cash collateral was considered to be restricted cash. The amount is included in other assets on the Company’s balance sheet.

Total debt issuance costs associated with the credit facility were $1.0 million, which are being amortized as interest expense over the four-year term of the credit facility agreement. For the three months ended April 30, 2013, $0.1 million of debt issuance costs were amortized and included in interest expense.