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Note 17 - Subsequent Events | 12 Months Ended
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Dec. 31, 2016
Notes to Financial Statements |
Subsequent Events [Text Block] | 17. Subsequent Events The Company is conducting the Private Placement of (i) shares of its Series A Convertible Preferred Stock, each share of Series A Convertible Preferred Stock being convertible into one share of its common stock, subject to adjustment, and (ii) for each share of Series A Convertible Preferred Stock purchased in the Private Placement, a 5 -year warrant to purchase one share of common stock (the “Warrant” and collectively with the Series A Convertible Preferred Stock, the “Securities”). On March 14, 2017, the Company entered into Subscription Agreements with certain accredited investors and conducted an initial closing of the Private Placement pursuant to which the Company sold 7,837,023 shares of the Series A Convertible Preferred Stock at a purchase price of $2.02 per share (the “ Initial Closing ”). In addition, each investor received a Warrant to purchase one share of common stock for each share of Series A Convertible Preferred Stock purchased by such investor in the Private Placement at an exercise price of $2.22, subject to adjustment thereunder. The Company received net cash proceeds of approximately $14.1 million from the Initial Closing, after deducting $1.7 million in placement agent fees and expenses associated with the Initial Closing. The Company may periodically conduct one or more additional closings up to aggregate gross proceeds of $25.0 million.

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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References No definition available. + Details
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