Note 1 - Business and Liquidity	6 Months Ended
Jun. 30, 2014
Business And Liquidity Disclosure [Abstract]
Business And Liquidity Disclosure [Text Block]	1. Business and Liquidity PLC Systems Inc. (“PLC” or the “Company”) is a medical device company specializing in innovative technologies for the cardiac and vascular markets. Over the past five years, the Company has begun initial commercialization outside the United States of its product, RenalGuard^®, which currently represents the Company’s key strategic growth initiative and primary business focus. The RenalGuard System consists of a proprietary console and accompanying single-use sets and is designed to reduce the potentially toxic effects that contrast media can have on the kidneys when it is administered to patients during certain medical imaging procedures. The Company conducts business operations as one operating segment. For the six months ended June 30, 2014, the Company incurred a loss from operations of approximately $2,165,000 and used cash in operations of approximately $1,175,000. As of June 30, 2014, cash and cash equivalents were $87,000 and the Company’s accumulated deficit was $103,700,000. Management expects that quarterly losses from operations and negative cash flows will continue during 2014. These factors raise substantial doubt about the Company’s ability to continue as a going concern. The accompanying condensed consolidated financial statements have been prepared assuming that the Company will continue as a going concern, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business. The financial statements do not include any adjustments relating to the recoverability and classification of recorded asset amounts or the amounts and classification of liabilities that might be necessary should the Company be unable to continue as a going concern. Based upon the current financial condition of the Company and the expectation of continued quarterly losses from operations during 2014, management is currently investigating ways to raise additional capital that can be completed in the next several months. On April 14, 2014 and May 27, 2014, the Company obtained an aggregate of $500,000 in funding through the sale of convertible notes and warrants, respectively. See Note 10 for additional details on the terms and conditions of these financing arrangements. On July 15, 2014 and August 6, 2014, the Company obtained an aggregate of $250,000 in funding through the sale of convertible notes and warrants, respectively (See Note 13). The Company believes that its existing resources, based on its currently projected financial results and the additional funding noted above, are sufficient to fund operations into the third quarter of 2014. Based upon current and anticipated revenue projections from foreign sales of our RenalGuard product, and the anticipated costs of its U.S. clinical trial, we expect that we will need to raise additional capital during the third quarter of 2014. Where possible, the Company has taken certain reductions in its discretionary spending. The Company will continue to review its other expense areas to determine whether additional reductions in discretionary spending can be achieved. On May 14, 2014, the Company filed a proxy statement with the Securities and Exchange Commission describing the form of a proposed merger transaction. The proposed transaction is expected to result in the sale of the Company’s Renal Guard business to GCP IV LLC in exchange for the cancellation of 95% of the Company’s outstanding convertible notes and a release of liens on substantially all of the Company’s assets. Subsequently, a wholly-owned subsidiary of the Company would merge with and into Viveve, Inc. (“Viveve”), with Viveve surviving the merger. The holders of the remaining 5% of the Company’s outstanding convertible notes will receive shares of common stock in exchange for the convertible notes prior to the transaction. Additionally, the holders of the Company’s then outstanding warrants will receive two-thirds (2/3) of a common share in exchange for each warrant share held prior to the transaction. The proposed transaction is subject to shareholder approval prior to consummation.

Note 1 - Business and Liquidity

6 Months Ended

Jun. 30, 2014

Business And Liquidity Disclosure [Abstract]

Business And Liquidity Disclosure [Text Block]

1. Business and Liquidity

PLC Systems Inc. (“PLC” or the “Company”) is a medical device company specializing in innovative technologies for the cardiac and vascular markets. Over the past five years, the Company has begun initial commercialization outside the United States of its product, RenalGuard^®, which currently represents the Company’s key strategic growth initiative and primary business focus. The RenalGuard System consists of a proprietary console and accompanying single-use sets and is designed to reduce the potentially toxic effects that contrast media can have on the kidneys when it is administered to patients during certain medical imaging procedures. The Company conducts business operations as one operating segment.

For the six months ended June 30, 2014, the Company incurred a loss from operations of approximately $2,165,000 and used cash in operations of approximately $1,175,000. As of June 30, 2014, cash and cash equivalents were $87,000 and the Company’s accumulated deficit was $103,700,000. Management expects that quarterly losses from operations and negative cash flows will continue during 2014. These factors raise substantial doubt about the Company’s ability to continue as a going concern. The accompanying condensed consolidated financial statements have been prepared assuming that the Company will continue as a going concern, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business. The financial statements do not include any adjustments relating to the recoverability and classification of recorded asset amounts or the amounts and classification of liabilities that might be necessary should the Company be unable to continue as a going concern.

Based upon the current financial condition of the Company and the expectation of continued quarterly losses from operations during 2014, management is currently investigating ways to raise additional capital that can be completed in the next several months. On April 14, 2014 and May 27, 2014, the Company obtained an aggregate of $500,000 in funding through the sale of convertible notes and warrants, respectively. See Note 10 for additional details on the terms and conditions of these financing arrangements. On July 15, 2014 and August 6, 2014, the Company obtained an aggregate of $250,000 in funding through the sale of convertible notes and warrants, respectively (See Note 13).

The Company believes that its existing resources, based on its currently projected financial results and the additional funding noted above, are sufficient to fund operations into the third quarter of 2014. Based upon current and anticipated revenue projections from foreign sales of our RenalGuard product, and the anticipated costs of its U.S. clinical trial, we expect that we will need to raise additional capital during the third quarter of 2014. Where possible, the Company has taken certain reductions in its discretionary spending. The Company will continue to review its other expense areas to determine whether additional reductions in discretionary spending can be achieved.

On May 14, 2014, the Company filed a proxy statement with the Securities and Exchange Commission describing the form of a proposed merger transaction. The proposed transaction is expected to result in the sale of the Company’s Renal Guard business to GCP IV LLC in exchange for the cancellation of 95% of the Company’s outstanding convertible notes and a release of liens on substantially all of the Company’s assets. Subsequently, a wholly-owned subsidiary of the Company would merge with and into Viveve, Inc. (“Viveve”), with Viveve surviving the merger. The holders of the remaining 5% of the Company’s outstanding convertible notes will receive shares of common stock in exchange for the convertible notes prior to the transaction. Additionally, the holders of the Company’s then outstanding warrants will receive two-thirds (2/3) of a common share in exchange for each warrant share held prior to the transaction. The proposed transaction is subject to shareholder approval prior to consummation.