Summary of Significant Accounting Policies | Note 3. Summary of Significant Accounting Policies Basis of Presentation and Principles of Consolidation The accompanying consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, Nuta Technology Corp. (“Nuta”), Spherix Portfolio Acquisition II, Inc. (“SPXII”), Guidance IP, LLC (“Guidance”), Directional IP, LLC (“Directional”), Spherix Management Services, LLC (“SMS”) and NNPT, LLC (“NNPT”). All significant intercompany balances and transactions have been eliminated in consolidation. Use of Estimates The accompanying consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“US GAAP”). This requires management to make estimates and assumptions that affect certain reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the period. The Company’s significant estimates and assumptions include the recoverability and useful lives of long-lived assets, stock-based compensation, the valuation of derivative liabilities, the valuation of investments and the valuation allowance related to the Company’s deferred tax assets. Certain of the Company’s estimates, including the carrying amount of the intangible assets, could be affected by external conditions, including those unique to the Company and general economic conditions. It is reasonably possible that these external factors could have an effect on the Company’s estimates and could cause actual results to differ from those estimates and assumptions. Concentration of Cash The Company maintains cash balances at two financial institutions in checking accounts and money market accounts. The Company considers all highly liquid investments with original maturities of three months or less when purchased to be cash and cash equivalents. As of June 30, 2018 and December 31, 2017, the Company had $0.2 million in cash and cash equivalents. The Company has not experienced any losses in such accounts and believes it is not exposed to any significant credit risk on cash. Marketable Securities Marketable securities are classified as trading and are carried at fair value. The Company’s marketable securities consist of corporate bonds and highly liquid mutual funds and exchange-traded & closed-end funds which are valued at quoted market prices. During the three months ended June 30, 2018 and 2017, the Company incurred realized losses of approximately $0.2 million and $36,000, respectively, and unrealized gains of approximately $41,000 and $66,000, respectively, on its investments in marketable securities, which are included in other income, net on the consolidated statements of operations. In addition, during the six months ended June 30, 2018 and 2017, the Company earned dividend income of approximately $44,000 and $47,000, respectively, which is included in other income, net on the consolidated statement of operations. During the six months ended June 30, 2018 and 2017, the Company incurred realized losses of approximately $0.3 million and $0.1 million, respectively, and unrealized losses of approximately $17,000 and unrealized gains of approximately $0.1 million, respectively, on its investments in marketable securities, which are included in other income, net on the consolidated statements of operations. In addition, during the six months ended June 30, 2018 and 2017, the Company earned dividend income of approximately $78,000 and $55,000, respectively, which is included in other income, net on the consolidated statement of operations. The realized gain or loss, unrealized gain or loss, and dividend income related to marketable securities for the three and six months ended June 30, 2018 and 2017 are as follows ($ in thousands): For the Three Months Ended June 30, For the Six Months Ended June 30, 2018 2017 2018 2017 Realized gain (loss) $ (177 ) $ (36 ) $ (275 ) $ (129 ) Unrealized gain (loss) 41 66 (17 ) 138 Dividend income 44 47 78 55 $ (92 ) $ 77 $ (215 ) $ 64 The Company reinvested such dividend income into its marketable securities during the six months ended June 30, 2018 and 2017. The fair values of such marketable securities held as of June 30, 2018 and December 31, 2017 were $4.6 million and $4.0 million, respectively. The marketable securities were classified as a Level 2 financial instrument at June 30, 2018 (see Note 7). Digital Currencies Translations and Remeasurements The Company accounts for digital currencies, which it considers to be an asset, at their initial cost and subsequently remeasures the carrying amounts of digital currencies it owns at each reporting date based on their current fair value. The changes in the fair value of digital currencies are included as a component of income or loss. The Company currently classifies digital currencies as a current asset. The Company obtains the equivalency rate of bitcoins to USD from various exchanges including, Bitstamp, Kraken and Coinbase. Equivalency rate obtained from these sources represents a generally well recognized quoted price in an active market for bitcoins, which market and related database are accessible to the Company on an ongoing basis. Investment The Company elected the fair value option for its investment in Hoth Therapeutics, Inc., a Nevada corporation (“Hoth”). As of June 30, 2018, the fair value of this investment was $1,700,000. The Company also elected the fair value option for its investment in TheBit Daily LLC, a Delaware limited liability company (“TheBit Daily”). As of June 30, 2018, the fair value of this investment was $25,000. These investments were classified as a Level 3 financial instrument at June 30, 2018 (see Note 4). While the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. The decision to elect the fair value option, which is irrevocable once elected, is determined on an instrument by instrument basis and applied to an entire instrument. The net gains or losses, if any, on an investment for which the fair value option has been elected, are recognized as an unrealized gain on investment in the Condensed Consolidated Statements of Operations. Net Loss per Share Basic loss per share is computed by dividing the net income or loss applicable to common shares by the weighted average number of common shares outstanding during the period. Net income (loss) attributable to common stockholders includes the effect of the deemed capital contribution on extinguishment of preferred stock and the deemed dividend related to the immediate accretion of beneficial conversion feature of convertible preferred stock. Diluted earnings per share is computed using the weighted average number of common shares and, if dilutive, potential common shares outstanding during the period. Potential common shares consist of the incremental common shares issuable upon the exercise of stock options (using the treasury stock method) and the conversion of the Company’s convertible preferred stock and warrants (using the if-converted method). Diluted loss per share excludes the shares issuable upon the conversion of preferred stock and the exercise of stock options and warrants from the calculation of net loss per share if their effect would be anti-dilutive. Securities that could potentially dilute loss per share in the future that were not included in the computation of diluted loss per share at June 30, 2018 and 2017 are as follows: As of June 30, 2018 2017 Convertible preferred stock 2,926 2,926 Warrants to purchase common stock 1,249,754 1,251,709 Options to purchase common stock 528,490 328,716 Total 1,781,170 1,583,351 Revenue Recognition The Company recognizes revenue when it is realized or realizable and earned. We consider revenue realized or realizable and earned when there is persuasive evidence of an arrangement when the services have been provided to the customer, the sales price is fixed or determinable and collectability is probable. Our material revenue stream is related to revenue generated from its settlement and licensing agreements. the appropriate recognition of revenue is determined as one performance obligation and revenue is recognized upon delivery of the final performance obligations, including the license for past and future use and the release. The Company recognizes revenue under ASC 606, Revenue from Contracts with Customers ● Step 1: Identify the contract with the customer ● Step 2: Identify the performance obligations in the contract ● Step 3: Determine the transaction price ● Step 4: Allocate the transaction price to the performance obligations in the contract ● Step 5: Recognize revenue when the company satisfies a performance obligation In order to identify the performance obligations in a contract with a customer, a company must assess the promised goods or services in the contract and identify each promised good or service that is distinct. A performance obligation meets ASC 606’s definition of a “distinct” good or service (or bundle of goods or services) if both of the following criteria are met: ● The customer can benefit from the good or service either on its own or together with other resources that are readily available to the customer (i.e., the good or service is capable of being distinct). ● The entity’s promise to transfer the good or service to the customer is separately identifiable from other promises in the contract (i.e., the promise to transfer the good or service is distinct within the context of the contract). If a good or service is not distinct, the good or service is combined with other promised goods or services until a bundle of goods or services is identified that is distinct. The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer. The consideration promised in a contract with a customer may include fixed amounts, variable amounts, or both. When determining the transaction price, an entity must consider the effects of all of the following: ● Variable consideration ● Constraining estimates of variable consideration ● The existence of a significant financing component in the contract ● Noncash consideration ● Consideration payable to a customer Variable consideration is included in the transaction price only to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. The transaction price is allocated to each performance obligation on a relative standalone selling price basis. The transaction price allocated to each performance obligation is recognized when that performance obligation is satisfied, at a point in time or over time as appropriate. As of June 30, 2018, there were no contract assets or liabilities associated with the Company’s settlement and licensing agreements. During the six months ended June 30, 2018, the Company did not generate any revenue. Recently Issued Accounting Pronouncements In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) Leases (Topic 840) In July 2017, the FASB issued ASU 2017-11, Earnings Per Share (Topic 260), Distinguishing Liabilities from Equity (Topic 480) and Derivatives and Hedging (Topic 815): I. Accounting for Certain Financial Instruments with Down Round Features; II. Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests with a Scope Exception In June 2018, the FASB issued ASU 2018-07, Compensation—Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting Recently Adopted Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” (ASU 2014-09) as modified by ASU No. 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date,” ASU 2016-08, “Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net),” ASU No. 2016-10, “Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing,” and ASU No. 2016-12, “Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients.” The revenue recognition principle in ASU 2014-09 is that an entity should recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, new and enhanced disclosures will be required. Companies may adopt the new standard either using the full retrospective approach, a modified retrospective approach with practical expedients, or a cumulative effect upon adoption approach. The Company adopted the new standard effective January 1, 2018, using the modified retrospective approach. The Company has determined that its licenses represent functional intellectual property under Topic 606. Therefore, revenue is recognized at the point in time when the customer has the right to use the intellectual property rather than over the license period. Accordingly, the Company’s deferred revenue related to its licenses was eliminated and accumulated deficit as of January 1, 2018 was decreased by approximately $3.2 million so that the Company will not recognize revenue on earnings statements in the future as to its license. In January 2016, the FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities In May 2017, the Financial Accounting Standards Board (the FASB) issued ASU 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting |