10.

DEBT

At December 31, 2012, the Company maintained a $30 million line of credit, which was due to expire on June 30, 2014. In August 2013, the Company borrowed $12.0 million under the line of credit in connection with its acquisition of Array. At December 31, 2013, the balance available under the credit agreement was $18.0 million. There were no previous borrowings under the credit agreement and, as a result, there was no balance outstanding as of December 31, 2012. Amounts outstanding under this line of credit are collateralized with a first priority security interest in 100% of the issued and outstanding shares of the capital stock of the Company's material domestic subsidiaries and 65% of all the issued and outstanding shares of the capital stock of certain of the foreign subsidiaries of the Company. The credit agreement bears interest at LIBOR plus 1.00% to 1.50% based on certain financial statement ratios maintained by the Company. The interest rate in effect on the borrowings outstanding at December 31, 2013 was 1.4%. Under the terms of the credit agreement, the Company is required to maintain certain financial ratios and comply with other financial conditions. As a result of the Company’s recent acquisitions, which resulted in a lower cash balance and increased intangible assets, the Company was not previously in compliance with its tangible net worth debt covenant. In November 2013, the credit agreement was amended to reflect modifications to the minimum tangible net worth and maximum leverage covenant calculations, and to extend the term of the agreement through October 14, 2016. The Company incurred interest expense of $0.2 million related to the borrowings under the credit agreement during the year ended December 31, 2013.