Note 10 - Capital Stock	6 Months Ended
Note 10 - Capital Stock	Jun. 30, 2018
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	Note 10. Capital Stock On May 24, 2018, the Company effected an exchange of warrants with the lenders under the Loan Agreement who held an aggregate of 2,400 shares of common stock (as adjusted for the Company’s 1:20 and 1:75 reverse splits effected in July 2016 and September 2017) for an aggregate of 100 shares of the Company’s newly authorized Series I Preferred Stock (the “Series I Preferred Stock”). The difference in value was de minimis and therefore no deemed dividend was recorded. Shares of Series I Preferred Stock are not convertible into common stock. In the event of a liquidation or fundamental transaction, a holder of Series I Preferred Stock shall be redeemed and shall be entitled to receive, per share of Series I Preferred Stock, in cash out of the assets of the Company, whether from capital or from earnings available for distribution to its shareholders (the “Liquidation Funds”), a one -time redemption payment in full satisfaction of all obligations to the holder and in cancellation of the Series I Preferred Stock equal to the quotient of (i) the product of ( x ) the remainder of Liquidation Funds available for distribution (including any deferred amounts) minus: (A) distribution or payment in full to the holders of the Company’s Series G Convertible Preferred Stock of the liquidation preference amount in accordance with the rights and designations of such series of Senior Preferred Stock, (B) distribution or payment to the holders of the Company’s Series H Convertible Preferred Stock of the liquidation preference amount in accordance with the rights and designations of such series of Senior Preferred Stock; (C) $1,025,437 to be reserved for junior stock holders as their interests appear; and (D) up to $2 million in payments under the 2018 Management and Key Employee Incentive Plan adopted by the Corporation (the Liquidation Funds less the amounts required under (A), (B), (C) and (D) hereof, the “Net Liquidation Funds”), multiplied by (y) 25% divided by (ii) the total number of outstanding shares of Series I Preferred Stock. All shares of capital stock of the Company (when and if issued), except for shares of Series G Convertible Preferred Stock and shares of Series H Convertible Preferred Stock outstanding as of May 24, 2018, shall be junior in rank to all shares of Series I Preferred Stock with respect to the preferences as to dividends, distributions and payments upon the liquidation, dissolution, winding-up or fundamental transaction (as defined in the Series I Certificate of Designations) of the Company. Holders of the Series I Preferred Stock shall have no voting rights except with respect to, and in each case each holder shall be entitled to one vote for each share of Series I Preferred Stock held by such holder: (i) amending, altering or repealing any provision of the Certificate of Incorporation (including the Certificate of Designation) of the Company, if the amendment, alteration or repeal of the Certificate of Incorporation would adversely affect the rights, preferences, powers or privileges of the Series I Preferred Stock or (ii) creating, authorizing, issuing or increasing the authorized or issued amount of any class or series of any of the Company’s equity securities, or any warrants, options or other rights convertible or exchangeable into any class or series of any of the Company’s equity securities, which would constitute senior preferred stock or parity stock or reclassify any authorized stock of the Company into any such stock, or create, authorize or issue any obligation or security convertible into, exchangeable or exercisable for, or evidencing the right to purchase any such stock. In each such case, at least a majority of the outstanding shares of Series I Preferred Stock shall vote in favor of such proposal. The Series I Preferred Stock was accounted for under Section 480 - 10 - S99 - Distinguishing liabilities from Equity (FASB Accounting Standards Codification 480 ) as amended by ASU 2009 - 04 - for Redeemable Equity Instruments (“ASU 2009 - 04” ). Under ASU 2009 - 04, a redeemable equity security is to be classified as temporary equity if it is conditionally redeemable upon the occurrence of an event that is not solely within the control of the issuer.

TOWERSTREAM CORP 10-Q