Line of Credit	9 Months Ended
Sep. 30, 2017
Debt Disclosure [Abstract]
Line of Credit	7. Line of Credit We have a $20.0 million revolving line of credit with a financial institution that can be used to (a) borrow for working capital and general business requirements, (b) issue letters of credit, and (c) enter into foreign exchange contracts. Amounts borrowed accrue interest at a floating per annum rate equal to the prime rate. A default interest rate shall apply during an event of default at a rate per annum equal to 5% above the otherwise applicable interest rate. The line of credit is collateralized by substantially all of our assets, except intellectual property, and requires us to comply with working capital, net worth and other covenants, including limitations on indebtedness and restrictions on dividend distributions, among others, and the borrowing capacity is limited to eligible accounts receivable. We are required to maintain an adjusted quick ratio (defined as the ratio of current assets to current liabilities minus deferred revenue) of at least 1.25. In May 2015, we issued a letter of credit for $1.5 million as a security deposit for a new Mountain View lease thereby reducing the borrowing capacity under our line of credit to $18.5 million. In June 2017, we amended our revolving line of credit and extended its maturity date to June 2018. There were no other outstanding amounts under the line of credit at September 30, 2017 or December 31, 2016 and we were in compliance with all financial covenants.

Line of Credit

9 Months Ended

Sep. 30, 2017

7. Line of Credit

We have a $20.0 million revolving line of credit with a financial institution that can be used to (a) borrow for working capital and general business requirements, (b) issue letters of credit, and (c) enter into foreign exchange contracts. Amounts borrowed accrue interest at a floating per annum rate equal to the prime rate. A default interest rate shall apply during an event of default at a rate per annum equal to 5% above the otherwise applicable interest rate. The line of credit is collateralized by substantially all of our assets, except intellectual property, and requires us to comply with working capital, net worth and other covenants, including limitations on indebtedness and restrictions on dividend distributions, among others, and the borrowing capacity is limited to eligible accounts receivable. We are required to maintain an adjusted quick ratio (defined as the ratio of current assets to current liabilities minus deferred revenue) of at least 1.25.

In May 2015, we issued a letter of credit for $1.5 million as a security deposit for a new Mountain View lease thereby reducing the borrowing capacity under our line of credit to $18.5 million.

In June 2017, we amended our revolving line of credit and extended its maturity date to June 2018.

There were no other outstanding amounts under the line of credit at September 30, 2017 or December 31, 2016 and we were in compliance with all financial covenants.