Note 2 - Operating Matters & Liquidity (Notes)	6 Months Ended
Note 2 - Operating Matters & Liquidity (Notes)	Jun. 30, 2014
Operating Matters and Liquidity [Abstract]
Operating Matters and Liquidity	Operating Matters and Liquidity The Company experienced net operating losses in 2013 and 2012, primarily as a result of the discontinued WirelessDx operations. The Company believes that cash flows from its operations, together with its existing working capital and other resources, will be sufficient to fund operations at current levels and repay debt obligations over the next twelve months and beyond. The Company continues to develop opportunities within new and existing channels where the Company can maximize its return on investments in capital equipment, research and development, marketing and human resources. On June 26, 2014, the Company entered into a new equipment line of credit for $1.0 million under the Company's multi-year credit facility entered into on March 29, 2013 with a Massachusetts bank (see Note 6).

Disclosure of accounting policy for reporting when there is a substantial doubt about an entity's ability to continue as a going concern for a reasonable period of time (generally a year from the balance sheet date). Disclose: (a) pertinent conditions and events giving rise to the assessment of substantial doubt about the entity's ability to continue as a going concern for a reasonable period of time, (b) the possible effects of such conditions and events, (c) management's evaluation of the significance of those conditions and events and any mitigating factors, (d) possible discontinuance of operations, (e) management's plans (including relevant prospective financial information), and (f) information about the recoverability or classification of recorded asset amounts or the amounts or classification of liabilities. If management's plans alleviate the substantial doubt about the entity's ability to continue as a going concern, disclosure of the principal conditions and events that initially raised the substantial doubt about the entity's ability to continue as a going concern would be expected to be considered. Disclose whether operations for the current or prior years generated sufficient cash to cover current obligations, whether waivers were obtained from creditors relating to the company's default under the provisions of debt agreements and possible effects of such conditions and events, such as: whether there is a possible need to obtain additional financing (debt or equity) or to liquidate certain holdings to offset future cash flow deficiencies. Disclose appropriate parent company information when parent is dependent upon remittances from subsidiaries to satisfy its obligations.

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