Note 2 - Derivative Liabilities

Historically, the Company accounted for certain instruments, which do not have fixed settlement provisions, as derivative instruments in accordance with FASB ASC 815-40, Derivative and Hedging – Contracts in Entity's Own Equity. This was due to an anti-dilution provision for the warrants that provides for a reduction to the exercise price if the Company issues equity or equity-linked instruments in the future at an effective price per share less than the exercise price then in effect for the warrant ("down round provision"). As such, the warrants were re-measured at each balance sheet date based on estimated fair value. Changes in estimated fair value were recorded as non-cash adjustments within other income, net, in the Company's accompanying Consolidated Statements of Operations.

As of April 1, 2018, the Company early adopted ASU 2017-11, which revised the guidance for instruments with down-round provisions. As such, the Company treated outstanding warrants as free-standing equity-linked instruments that were recorded as a charge to equity in the Consolidated Balance Sheet as of January 1, 2018. In accordance with the guidance presented in the ASU 2017-11, the fair value of the derivative liability balance for 57,212 warrants as of December 31, 2017 of $16 thousand was reclassified by means of a cumulative-effect adjustment to equity as of January 1, 2018. The impact of the adoption was as follows: