Note 3 - Bank Financing Arrangements	12 Months Ended
Dec. 31, 2017
Debt Disclosure [Abstract]
Note 3 - Bank Financing Arrangements	NOTE 3 — Bank Financing Arrangements On March 20, 2017, the Company completed a Business Financing Modification Agreement by and between the Company and Western Alliance Bank (the “Bank) to extend the expiration date of the domestic portion of the revolving credit line to February 27, 2019. The international portion of the credit line was not changed and expired on February 27, 2018. Under the terms of the credit facility agreement with the Bank, the Company may borrow up to $2.5 million, of which up to $2.0 million is based on qualified receivables from domestic customers and up to $0.5 million is based on qualified receivables from international customers. In addition, the Company must maintain a minimum liquidity ratio calculated at the end of each month of quick assets (cash plus qualified accounts receivable) to outstanding obligations to the Bank not less than 1.75 to 1.0. Advances against the domestic and international lines are calculated at 70% of qualified receivables. Borrowings under the lines bear an annual interest rate equal to the Bank’s prime rate (minimum of 3.25%) plus 1.5%. There is also a collateral handling fee of 0.1% per month of the financed receivables outstanding. The applicable interest and fees are calculated based on the actual amounts borrowed. The borrowings under the credit facility are secured by a first priority security interest in the assets of the Company. All advances are at the Bank’s discretion and the Bank is not obligated to make advances. The agreement may be terminated by the Company or by the Bank at any time. No amount was borrowed under the lines of credit with Western Alliance Bank during 2017, and the total borrowing capacity was approximately $1,583,000 at December 31, 2017. Total interest expense on the amounts drawn under the Company’s bank credit lines in effect during the years ended December 31, 2017 and 2016 was $0 and $3,000, respectively. On January 31, 2018, the Company entered into an Amended and Restated Business Financing Agreement (the “Financing Agreement”) with Western Alliance Bank (the “Bank), that provides for a $2.5 million revolving line of credit and a $4.0 million term loan that the Company may use to repurchase shares of common stock. The Company drew down the term loan on March 1, 2018. Pursuant to the revolving line of credit, the Company is permitted to borrow up to the lesser of $2.5 million or 80% of eligible accounts receivables. Amounts outstanding under the line of credit bear interest at the “U.S. Prime Rate” published by the Wall Street Journal plus 0.75%. Interest is payable monthly on the line of credit, and the principal is due upon the maturity date of January 31, 2020. Amounts outstanding under the term loan bear interest at the “U.S. Prime Rate” published by the Wall Street Journal plus 1.75%. Following a three-month interest only period, the term loan is payable in 45 equal monthly installments of principal and interest. The loans are secured by all of our present and future assets, including intellectual property and general intangibles. Termination of the revolving line of credit or term loan prior to its termination date may be subject to early termination fees, subject to certain exceptions. Amounts repaid or prepaid under the term loan may not be reborrowed. At the end of each quarter through the quarter ending December 31, 2018, the Company is required to prepay outstanding term loan principal in an amount equal to 25% of excess cash flow, as set forth in the Financing Agreement, for the most recent quarter ended. The Company is also obligated to pay customary fees for a loan facility of this size and type. The Financing Agreement contains customary affirmative and negative covenants, including covenants that limit or restrict the Company’s ability to, among other things, grant liens, make investments, incur indebtedness, merge or consolidate, dispose of assets, make acquisitions, pay dividends or make distributions, repurchase stock, enter into transactions with affiliates and enter into restrictive agreements, in each case subject to customary exceptions for a credit facility of this size and type. The Company is also required to maintain compliance with an asset coverage ratio measured monthly, which requirements increase during the term of the Financing Agreement, a fixed charge coverage ratio of no less than 1.75 to 1.0, measured quarterly, and a total funded debt to trailing twelve months EBITDA multiple of not more than 1.75 to 1.0, measured monthly. The Financing Agreement also contains customary events of default including, among others, payment defaults, breaches of covenants, bankruptcy and insolvency events, cross defaults with certain material indebtedness, judgment defaults, and breaches of representations and warranties. Upon an event of default, the Bank may declare all or a portion of the Company’s outstanding obligations payable to be immediately due and payable and exercise other rights and remedies provided for under the Financing Agreement. During the existence of an event of default, interest on the obligations could be increased.

Note 3 - Bank Financing Arrangements

12 Months Ended

Dec. 31, 2017

NOTE 3 — Bank Financing Arrangements

On March 20, 2017, the Company completed a Business Financing Modification Agreement by and between the Company and Western Alliance Bank (the “Bank) to extend the expiration date of the domestic portion of the revolving credit line to February 27, 2019. The international portion of the credit line was not changed and expired on February 27, 2018. Under the terms of the credit facility agreement with the Bank, the Company may borrow up to $2.5 million, of which up to $2.0 million is based on qualified receivables from domestic customers and up to $0.5 million is based on qualified receivables from international customers. In addition, the Company must maintain a minimum liquidity ratio calculated at the end of each month of quick assets (cash plus qualified accounts receivable) to outstanding obligations to the Bank not less than 1.75 to 1.0. Advances against the domestic and international lines are calculated at 70% of qualified receivables. Borrowings under the lines bear an annual interest rate equal to the Bank’s prime rate (minimum of 3.25%) plus 1.5%. There is also a collateral handling fee of 0.1% per month of the financed receivables outstanding. The applicable interest and fees are calculated based on the actual amounts borrowed. The borrowings under the credit facility are secured by a first priority security interest in the assets of the Company. All advances are at the Bank’s discretion and the Bank is not obligated to make advances. The agreement may be terminated by the Company or by the Bank at any time.

No amount was borrowed under the lines of credit with Western Alliance Bank during 2017, and the total borrowing capacity was approximately $1,583,000 at December 31, 2017.

Total interest expense on the amounts drawn under the Company’s bank credit lines in effect during the years ended December 31, 2017 and 2016 was $0 and $3,000, respectively.

On January 31, 2018, the Company entered into an Amended and Restated Business Financing Agreement (the “Financing Agreement”) with Western Alliance Bank (the “Bank), that provides for a $2.5 million revolving line of credit and a $4.0 million term loan that the Company may use to repurchase shares of common stock. The Company drew down the term loan on March 1, 2018. Pursuant to the revolving line of credit, the Company is permitted to borrow up to the lesser of $2.5 million or 80% of eligible accounts receivables. Amounts outstanding under the line of credit bear interest at the “U.S. Prime Rate” published by the Wall Street Journal plus 0.75%. Interest is payable monthly on the line of credit, and the principal is due upon the maturity date of January 31, 2020. Amounts outstanding under the term loan bear interest at the “U.S. Prime Rate” published by the Wall Street Journal plus 1.75%. Following a three-month interest only period, the term loan is payable in 45 equal monthly installments of principal and interest. The loans are secured by all of our present and future assets, including intellectual property and general intangibles. Termination of the revolving line of credit or term loan prior to its termination date may be subject to early termination fees, subject to certain exceptions. Amounts repaid or prepaid under the term loan may not be reborrowed. At the end of each quarter through the quarter ending December 31, 2018, the Company is required to prepay outstanding term loan principal in an amount equal to 25% of excess cash flow, as set forth in the Financing Agreement, for the most recent quarter ended. The Company is also obligated to pay customary fees for a loan facility of this size and type.

The Financing Agreement contains customary affirmative and negative covenants, including covenants that limit or restrict the Company’s ability to, among other things, grant liens, make investments, incur indebtedness, merge or consolidate, dispose of assets, make acquisitions, pay dividends or make distributions, repurchase stock, enter into transactions with affiliates and enter into restrictive agreements, in each case subject to customary exceptions for a credit facility of this size and type. The Company is also required to maintain compliance with an asset coverage ratio measured monthly, which requirements increase during the term of the Financing Agreement, a fixed charge coverage ratio of no less than 1.75 to 1.0, measured quarterly, and a total funded debt to trailing twelve months EBITDA multiple of not more than 1.75 to 1.0, measured monthly.

The Financing Agreement also contains customary events of default including, among others, payment defaults, breaches of covenants, bankruptcy and insolvency events, cross defaults with certain material indebtedness, judgment defaults, and breaches of representations and warranties. Upon an event of default, the Bank may declare all or a portion of the Company’s outstanding obligations payable to be immediately due and payable and exercise other rights and remedies provided for under the Financing Agreement. During the existence of an event of default, interest on the obligations could be increased.