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Basis of presentation, summary of significant accounting policies and recent accounting pronouncements (Policies) | 6 Months Ended
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Jun. 30, 2019
Accounting Policies [Abstract] |
Basis of presentation and principles of consolidation | Basis of presentation and principles of consolidation The accompanying unaudited condensed interim consolidated financial statements have been prepared in accordance with the accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and pursuant to the instructions to Form 10-Q and Article 8 of Regulation S-X of the SEC. In the opinion of management, the accompanying unaudited condensed interim consolidated financial statements reflect all adjustments, consisting of normal recurring adjustments, considered necessary for a fair presentation of such interim results. The results for the unaudited condensed interim consolidated statement of operations are not necessarily indicative of results to be expected for the year ending December 31, 2019 or for any future interim period. The unaudited condensed interim consolidated financial statements do not include all of the information and notes required by U.S. GAAP for complete financial statements. The accompanying unaudited condensed interim consolidated financial statements should be read in conjunction with the consolidated financial statements for the year ended December 31, 2018 and notes thereto included in the Company’s Annual Report on Form 10-K filed with the SEC on April 2, 2019.
Use of estimates | Use of estimates: The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the balance sheet and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ significantly from those estimates. The most significant accounting estimates inherent in the preparation of the Company's unaudited condensed interim consolidated financial statements include estimates associated with revenue recognition, asset valuations, the useful lives and recoverability of long-lived assets, impairment analysis of intangibles and goodwill, stock-based compensation, assumptions used in estimating the fair value of convertible notes and warrants, and the valuation allowance associated with the Company’s deferred tax assets.
Sequencing | Sequencing: On January 28, 2019, the Company adopted a sequencing policy under Accounting Standards Codification (“ASC”) 815-40-35 Derivatives and Hedging (“ASC 815”) whereby in the event that reclassification of contracts from equity to assets or liabilities is necessary pursuant to ASC 815 due to the Company’s inability to demonstrate it has sufficient authorized shares as a result of certain securities convertible or exchangeable for a potentially indeterminable number of shares, shares will be allocated on the basis of the earliest issuance date of potentially dilutive instruments, with the earliest grants receiving the first allocation of shares. Pursuant to ASC 815, issuances of securities to the Company’s employees or directors are not subject to the sequencing policy.
Notes Payable Fair Value Option | Notes Payable Fair Value Option: As described further in Note 8 - Notes and Other Obligations, in January 2019, the Company issued Senior Secured Promissory Notes (the “Notes”) to Oasis Capital, LLC, Harbor Gates Capital, LLC and SG3 Capital, LLC (each an “Investor” and collectively, the “Investors”) in the aggregate principal amount of $3,358,333. The Company has elected the fair value option to account for these Notes due to the complexity and number of embedded features. The fair value of the Notes is classified within Level 3 of the fair value hierarchy because the fair values were estimated utilizing a Monte Carlo simulation model. Accordingly, the Company recorded these Notes at fair value with changes in fair value recorded in the statement of operations. As a result of applying the fair value option, direct costs and fees related to the Notes were recognized in earnings as incurred and were not deferred. The change in fair value of the Notes has been presented as change in value of convertible notes payable on the unaudited condensed interim consolidated statements of operations. During the three months ended June 30, 2019, all of the Notes were converted into 1,813,500 shares of the Company’s common stock valued at their estimated fair value at the time of conversion totaling approximately $10.2 million.
Warrant Liability | Warrant Liability: The Company issued Warrants to purchase 1,908,144 shares of its common stock in connection with the Notes issued to the Investors in January 2019, and recorded these outstanding Warrants as a liability at fair value utilizing a Monte Carlo simulation model. This liability is subject to re-measurement at each balance sheet date, and any change in fair value is recognized in the Company's condensed interim consolidated statements of operations. As of June 25, 2019, the Company’s Notes had been converted in their entirety and the warrant liability was revalued and reclassified to equity, because the Warrants are no longer subject to the Company’s sequencing policy as described above.
Leases | Leases: Effective January 1, 2019, the Company accounts for its leases under ASC 842, Leases (“ASC 842”). Under this guidance, arrangements meeting the definition of a lease are classified as operating or financing leases, and are recorded on the consolidated balance sheet as both a right of use asset and lease liability, calculated by discounting fixed lease payments over the lease term at the rate implicit in the lease or the Company’s incremental borrowing rate. Lease liabilities are increased by interest and reduced by payments each period, and the right of use asset is amortized over the lease term. For operating leases, interest on the lease liability and the amortization of the right of use asset result in straight-line rent expense over the lease term. In calculating the right of use asset and lease liability, the Company elects to combine lease and non-lease components as permitted under ASC 842. The Company excludes short-term leases having initial terms of 12 months or less from the new guidance as an accounting policy election, and recognizes rent expense on a straight-line basis over the lease term. The Company continues to account for leases in the prior period financial statements under ASC Topic 840.
Loss per share | Loss per share: Basic net loss per share (“EPS”) of common stock is computed by dividing net loss by the weighted average number of shares of common stock outstanding during the period. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then shared in the earnings of the entity. The Company excludes its unvested restricted shares and escrow shares from the net loss per share calculation. The escrow shares are excluded due to their related contingencies, the inclusion of which would result in anti-dilution. Since the Company has net losses attributable to Riot Blockchain, basic and diluted net loss per share is the same. Securities that could potentially dilute loss per share in the future were not included in the computation of diluted loss per share at June 30, 2019 and 2018 because their inclusion would be anti-dilutive are as follows:
|  | June 30,
|  | 2019 |  | 2018
Warrants to purchase common stock |  |  | 3,574,257 |  |  |  | 1,671,113 |
Options to purchase common stock |  |  | 12,000 |  |  |  | 150,000 |
Escrow shares |  |  | 200,000 |  |  |  | 200,000 |
Unvested restricted stock awards |  |  | 42,980 |  |  |  | 571,567 |
Convertible Series B preferred shares |  |  | 4,999 |  |  |  | 703,000 |
Total |  |  | 3,834,236 |  |  |  | 3,295,680
Recently issued and adopted accounting pronouncements | Recently issued and adopted accounting pronouncements: In February 2016, the FASB issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842) in order to increase transparency and comparability among organizations by, among other provisions, recognizing lease assets and lease liabilities on the balance sheet for those leases classified as operating leases under previous U.S. GAAP. For public companies, ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 (including interim periods within those periods) using a modified retrospective approach and early adoption is permitted. In transition, entities may also elect a package of practical expedients that must be applied in its entirety to all leases commencing before the adoption date, unless the lease is modified, and permits entities to not reassess (a) the existence of a lease, (b) lease classification or (c) determination of initial direct costs, as of the adoption date, effectively allowing entities to carryforward accounting conclusions under previous U.S. GAAP. In July 2018, the FASB issued ASU 2018-11, Leases (Topic 842): Targeted Improvements, which provides entities an optional transition method to apply the guidance under Topic 842 as of the adoption date, rather than as of the earliest period presented. The Company adopted Topic 842 on January 1, 2019, using the optional transition method to apply the new guidance as of January 1, 2019, rather than as of the earliest period presented, and elected the package of practical expedients described above. Based on the analysis, on January 1, 2019, the Company recorded right of use assets and lease liabilities of approximately $1.5 million. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Accounting for Goodwill Impairment. ASU 2017-04 removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. This standard will be effective for the Company beginning in the first quarter of fiscal year 2020 and is required to be applied prospectively. The Company does not expect the adoption of ASU 2017-04 to have a material impact on its consolidated financial statements. In August 2018, the FASB issued ASU 2018-15, “Intangibles–Goodwill and Other–Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is A Service Contract” (“ASU 2018-15”). This update clarifies the accounting treatment for fees paid by a customer in a cloud computing arrangement (hosting arrangement) by providing guidance for determining when the arrangement includes a software license. This guidance is effective for public business entities for fiscal years, and interim periods within those years, beginning after December 15, 2019, with early adoption permitted. The amendments may be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. The Company is still evaluating the prospective impact of this guidance on its future consolidated financial statements and related disclosures. In November 2018, the FASB issued ASU 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction Between Topic 808 and Topic 606, which clarifies that certain transactions between collaborative arrangement participants should be accounted for as revenue under ASC 606 when the collaborative arrangement participant is a customer for a promised good or service that is distinct within the collaborative arrangement. The guidance also precludes entities from presenting amounts related to transactions with a collaborative arrangement participant that is not a customer as revenue, unless those transactions are directly related to third-party sales. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019, with early adoption permitted. The Company is currently evaluating the effect that the standard will have on its consolidated financial statements and related disclosures.

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