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Note 6 - Line of Credit | 12 Months Ended
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Dec. 31, 2016
Notes to Financial Statements |
Debt Disclosure [Text Block] | 6. Line of Credit On March 29, 2006, we entered into a Loan and Security Agreement with Silicon Valley Bank (“SVB”) to establish a $1.0 million line of credit (the “2006 Credit Line”). On June 30, 2008, we entered into an Amended and Restated Loan and Security Agreement with SVB to, among other things, replace the 2006 Credit Line with a $2.5 million line of credit (the “2008 Credit Line”). On June 23, 2015, we entered into the Seventh Amendment to the Amended and Restated Loan and Security Agreement (as amended, the “Loan Agreement”) with SVB to replace our expiring line with a $0.625 million line of credit (the “Line of Credit”). Our obligations under the Loan Agreement were secured by substantially all of our assets, including all of our intellectual property. In addition, G. Ward Paxton, the Company’s Chairman, President and Chief Executive Officer, established a Guaranty Agreement with SVB securing all outstanding balances under the Line of Credit. On June 21, 2016, the Loan Agreement terminated. Due to increasing fees associated with the Line of Credit, we chose not to renew the loan agreement on the termination date. We replaced the line with an increased commitment under the CEO Note (Note 7 below) as needed.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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