Long-Term Debt and Credit Facilities	9 Months Ended
Sep. 30, 2018
Debt Disclosure [Abstract]
Long-Term Debt and Credit Facilities	*8. Long-Term Debt and Credit Facilities* The Company has had a working capital line of credit with its primary lender, Silicon Valley Bank, since 2004. The revolving line of credit is secured by substantially all of the Company’s assets. The maximum available under the line is $5.0 million subject to the value of collateralized assets. The Company is required under the revolving line of credit to maintain its primary operating account and the majority of its cash and investment balances in accounts with its primary lender. On April 26, 2018, the Company entered into a First Amendment to Third Amended and Restated Loan and Security Agreement with Silicon Valley Bank to extend the maturity of the revolving line of credit to April 25, 2019. The maximum availability under the revolving line of credit remains at $5.0 million, and provides for an interest rate during a “streamline period” equal to the prime rate subject to a floor of 4.5%. A “streamline period” occurs when the Company has, for each consecutive day in the immediately preceding monthly period, maintained a liquidity ratio greater than 1.75:1.00, and continuing so long as the streamline period has been maintained. Upon the termination of a streamline period, the Company must maintain the streamline threshold each consecutive day for one fiscal quarter, prior to entering into a subsequent streamline period. During non-streamline periods, the interest rate is the prime rate plus 1.5%, subject to a floor of 4.5%. In addition, the amendment requires that the liquidity ratio shall at all times include not less than $1.5 million of the Borrower’s unrestricted cash and cash equivalents maintained at the Bank prior to giving effect to any advance. As of September 30, 2018, the Company had no outstanding balance under the revolving line of credit. Draws on the line of credit are made based on the borrowing capacity one week in arrears. As of September 30, 2018, the Company had a borrowing capacity of $3.2 million based on the Company’s collateralized assets. The Company’s total liquidity as of September 30, 2018, was $14.8 million which included cash and cash equivalents of $11.6 million.

Long-Term Debt and Credit Facilities

9 Months Ended

Sep. 30, 2018

8. Long-Term Debt and Credit Facilities

The Company has had a working capital line of credit with its primary lender, Silicon Valley Bank, since 2004. The revolving line of credit is secured by substantially all of the Company’s assets. The maximum available under the line is $5.0 million subject to the value of collateralized assets. The Company is required under the revolving line of credit to maintain its primary operating account and the majority of its cash and investment balances in accounts with its primary lender.

On April 26, 2018, the Company entered into a First Amendment to Third Amended and Restated Loan and Security Agreement with Silicon Valley Bank to extend the maturity of the revolving line of credit to April 25, 2019. The maximum availability under the revolving line of credit remains at $5.0 million, and provides for an interest rate during a “streamline period” equal to the prime rate subject to a floor of 4.5%. A “streamline period” occurs when the Company has, for each consecutive day in the immediately preceding monthly period, maintained a liquidity ratio greater than 1.75:1.00, and continuing so long as the streamline period has been maintained. Upon the termination of a streamline period, the Company must maintain the streamline threshold each consecutive day for one fiscal quarter, prior to entering into a subsequent streamline period. During non-streamline periods, the interest rate is the prime rate plus 1.5%, subject to a floor of 4.5%. In addition, the amendment requires that the liquidity ratio shall at all times include not less than $1.5 million of the Borrower’s unrestricted cash and cash equivalents maintained at the Bank prior to giving effect to any advance.

As of September 30, 2018, the Company had no outstanding balance under the revolving line of credit. Draws on the line of credit are made based on the borrowing capacity one week in arrears. As of September 30, 2018, the Company had a borrowing capacity of $3.2 million based on the Company’s collateralized assets. The Company’s total liquidity as of September 30, 2018, was $14.8 million which included cash and cash equivalents of $11.6 million.