Presbia (LENSF) 10-Q 4 Nov 16 2016 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Oct. 31, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q3
Trading Symbol	LENS
Entity Registrant Name	PRESBIA PLC
Entity Central Index Key	1,591,096
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		13,420,927

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets
Cash	$ 10,527	$ 21,749
Accounts receivable	50	116
Inventory, net	485	430
Prepaid expenses and other current assets	221	242
Total current assets	11,283	22,537
Property and equipment, net	772	775
Intangible asset	1,601	32
Other assets	159	63
Total assets	13,815	23,407
Current liabilities
Accounts payable	354	736
Due to related parties	20	55
Other current liabilities	741	569
Total current liabilities	1,115	1,360
Long-term liability	1,032
Deferred rent	11	22
Total liabilities	2,158	1,382
Commitments and contingencies (note 10)
Shareholders' equity
Common Ordinary Shares $0.001 par value, 350,000,000 shares authorized; 13,420,927 and 13,355,477 shares issued and outstanding at September 30, 2016 and December 31, 2015, respectively.	13	13
Deferred Ordinary Shares €1.00 (US$1.35) par value, 39,994 shares authorized, issued and outstanding at September 30, 2016 and December 31, 2015, respectively.	54	54
Additional paid-in capital	79,044	77,505
Accumulated deficit	(67,454)	(55,547)
Total shareholders' equity	11,657	22,025
Total liabilities and shareholders’ equity	$ 13,815	$ 23,407

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical)	Sep. 30, 2016$ / sharesshares	Sep. 30, 2016€ / sharesshares	Dec. 31, 2015$ / sharesshares	Dec. 31, 2015€ / sharesshares
Statement Of Financial Position [Abstract]
Common ordinary shares, par value | $ / shares	$ 0.001		$ 0.001
Common ordinary shares, shares authorized	350,000,000	350,000,000	350,000,000	350,000,000
Common ordinary shares, shares issued	13,420,927	13,420,927	13,355,477	13,355,477
Common ordinary shares, shares outstanding	13,420,927	13,420,927	13,355,477	13,355,477
Deferred ordinary shares, par value | (per share)	$ 1.35	€ 1	$ 1.35	€ 1
Deferred ordinary shares, shares authorized	39,994	39,994	39,994	39,994
Deferred ordinary shares, shares issued	39,994	39,994	39,994	39,994
Deferred ordinary shares, shares outstanding	39,994	39,994	39,994	39,994

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Revenues	$ 13	$ 10	$ 19	$ 125
Cost of goods sold	31	34	77	95
Gross profit (loss)	(18)	(24)	(58)	30
Operating expenses:
Research and development	1,310	2,333	3,848	6,611
Sales and marketing	974	760	2,386	2,113
General and administrative	1,958	1,762	5,617	6,088
Total operating expenses	4,242	4,855	11,851	14,812
Operating loss	(4,260)	(4,879)	(11,909)	(14,782)
Interest income	4		13
Other income (expense)		(12)	1	(12)
Loss before income tax provision	(4,256)	(4,891)	(11,895)	(14,794)
Income tax provision	3	9	12	18
Net loss	$ (4,259)	$ (4,900)	$ (11,907)	$ (14,812)
Net loss per ordinary share-basic and diluted	$ (0.32)	$ (0.37)	$ (0.89)	$ (1.16)
Weighted average shares outstanding - basic and diluted	13,338,431	13,334,503	13,336,994	12,814,802

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flow from operating activities:
Net loss	$ (11,907)	$ (14,812)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation	136	116
Amortization	12	9
Inventory provisions	77	87
Loss on disposal of fixed assets		12
Share-based compensation (including allocation from Presbia Holdings)	1,539	1,837
Non-cash interest expense on funding from the Presbia Holdings		1
Non-cash operating expenses allocated from the Presbia Holdings		182
Changes in operating assets and liabilities:
Accounts receivable	66	(9)
Inventory	(131)	(127)
Prepaid expenses and other current assets	20	(166)
Other assets	(97)
Accounts payable and other current liabilities	(200)	761
Income taxes payable	(13)	16
Deferred rent	(10)	(11)
Due to related parties	(35)	41
Net cash used in operating activities	(10,543)	(12,063)
Cash flow from investing activities:
Purchases of intangible assets	(536)
Purchases of property and equipment	(144)	(164)
Net cash used in investing activities	(680)	(164)
Cash flow from financing activities:
Proceeds from issuance of ordinary shares upon initial public offering, net of underwriting costs		38,750
Deferred offering costs		(2,431)
Proceeds from sale of equipment	1
Funding from the Parent		1,141
Net cash provided by financing activities	1	37,460
Net (decrease) increase in cash	(11,222)	25,233
Cash balance at beginning of period	21,749	138
Cash balance at end of period	$ 10,527	25,371
Supplemental disclosure of cash flow information:
Cash paid for income taxes		3
Supplemental disclosures of non-cash investing and financing activities:
Allocated operating expenses funded by Presbia Holdings		182
Capitalization of amounts due to Presbia Holdings persuant to the 2015 Debt Conversion		$ 1,559

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Basis of Presentation	(1) Basis of Presentation Principles of Consolidation. The accompanying consolidated financial statements have been derived from the historical cost basis of the assets and liabilities, financial condition and cash flows of Presbia PLC and Presbia Ireland, Limited, both organized in Ireland, Presbia Investments, a direct subsidiary of Presbia PLC organized in the Cayman Islands, and Presbia Ireland, Limited’s subsidiaries, Presbia USA, Inc., and OPL, LLC. Presbia USA, Inc. and OPL, LLC are both entities organized in the United States, and include Presbia USA, Inc.’s subsidiaries, Visitome, Inc. and PresbiBio, LLC, both organized in the United States, and OPL, LLC’s direct and indirect subsidiaries, PIP Holdings, C.V and Presbia Cooperatief U.A., both organized in the Netherlands, and PresbiOptical LLC, organized in the United States (collectively, including Presbia PLC, the “Company”). The accompanying consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). The Company’s fiscal year ends on December 31. The entities presented in the consolidated financial statements have been under common control during the periods presented. All intercompany accounts have been eliminated in consolidation. Basis of Presentation. The accompanying unaudited consolidated financial statements as of September 30, 2016 and for the three and nine-months ended September 30,, 2016 and 2015, respectively, have been prepared in accordance with United States generally accepted accounting principles (“U.S. GAAP”) for interim financial reporting, and with the instructions to Form 10-Q and Article 8 of Regulation S-X. These consolidated financial statements should be read in conjunction with the audited consolidated financial statements presented in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2015. The accompanying balance sheet as for December 31, 2015 has been derived from the audited financial statements at that date but does not include all the information and footnotes required by GAAP for complete financial statements. The results of operations for the three and nine-months ended September 30, 2016 are not necessarily indicative of the results to be anticipated for the entire year ending December 31, 2016, or any other period. In the opinion of management, the accompanying consolidated financial statements reflect all adjustments which are necessary for a fair presentation of the results of operations and cash flows for the periods presented. References to amounts in the consolidated financial statement sections are in thousands, except per share data, unless otherwise specified. Reclassification of Prior Year Presentation. Certain prior year amounts have been reclassified for consistency with the current period presentation. These reclassifications had no effect on the reported results of operations and cash flows. Liquidity The Company has incurred significant operating losses since inception and had relied on funding from Presbia Holdings (the “Parent”) to fund operations prior to its IPO on February 3, 2015. Presbia Holdings was dissolved on November 25, 2015 and ceased to be the Parent of Presbia PLC. At September 30, 2016, the Company has an accumulated deficit of $67.5 million. As the Company continues to incur losses, its transition to profitability will depend on the following: (i) the completion of its U.S. staged pivotal trial, obtaining FDA approval of its microlens and, if approval is received from the FDA, the commercialization of its product within the United States and (ii) the successful commercialization of its product in certain jurisdictions outside the United States in which the Company has market approval, including the European Economic Area. The Company may never achieve profitability, and unless and until it does, it will need to continue to raise additional capital. Management expects that existing cash as of September 30, 2016, coupled with anticipated revenues outside of the United States will be sufficient to meet the Company’s anticipated cash requirements through the second quarter of 2017

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	(2) Summary of Significant Accounting Policies During the three and nine-months ended September 30, 2016 there have been no changes to the Company’s significant accounting policies as described in the Annual Report on Form 10-K for the fiscal year ended December 31, 2015. Foreign Currency The functional currency of subsidiaries outside the United States of America is the U.S. Dollar. Transactions in foreign currencies during the year are re-measured at rates of exchange on the dates of the transactions. Gains and losses related to re-measurement of items arising through operating activities are accounted for in the statement of operations and comprehensive loss and included in general and administrative expense. Aggregate foreign exchange loss was $24,000 and $41,000 for the three and nine-months ended September 30, 2016 the three and nine-months ended September 30, Comprehensive Loss Comprehensive income or loss is defined as a change in equity of a company attributable to all transactions excluding those transactions resulting from investment with owners and distributions to owners. There were no differences between net loss and comprehensive loss in the three and nine-months ended September 30, 2016 Recent Accounting Standards In March 2016, the Financial Accounting Standards Board issued Accounting Standard Update (ASU) 2016-09 Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. ASU 2016-09 modifies multiple provisions intended to simplify various aspects of accounting for share-based payments including income tax consequences, accounting for forfeitures, classification of awards as either equity or liabilities, and classification on the statement of cash flows. ASU 2016-09 will be effective for the Company beginning in the first quarter of 2017. The adoption of this standard is not expected to have a material impact on the Company's financial position or results of operations. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The new standard requires lessees to recognize most leases on their balance sheets as lease liabilities with corresponding right-of-use assets and eliminates certain real estate-specific provisions. ASU 2016-02 will be effective for the Company in the first quarter of 2019. ASU 2016-02 will be adopted on a modified retrospective transition basis for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The Company is currently evaluating the impact of ASU 2016-02 on its consolidated financial statements. In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements - Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. The new standard requires management to assess, at each annual and interim reporting period, an entity's ability to continue as a going concern within one year after the date that the financial statements are issued and to provide related footnote disclosures. ASU 2014-15 will be effective for the Company beginning in the first quarter of 2017. The adoption of this standard is not expected to have a material impact on the Company’s financial position or results of operations. In June 2014, the FASB issued ASU 2014-12, Compensation - Stock Compensation (Topic 781): Accounting for Share-Based Payments When the Terms of an Award Provide that a Performance Target Could be Achieved after the Requisite Service Period. The new standard requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. As such, the performance target should not be reflected in estimating the grant date fair value of the award. Compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the periods for which the requisite service has already been rendered. The Company adopted ASU 201-12 effective as of January 1, 2016, and the adoption of this standard had no impact on the Company's financial position or results of operations. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The new standard is based on the principle that revenue should be recognized to depict the transfer of promised 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. ASU 2014-09 will be effective for the Company in the first quarter of 2018 and allows for full retrospective or a modified retrospective adoption approach. The Company has not yet assessed the potential impact of ASU 2014-09 on its consolidated financial statements.

Loss per Share

Loss per Share	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Loss per Share	(3) Loss per Share Basic net loss per ordinary share is calculated by dividing net loss allocated to ordinary shareholders by the weighted average number of ordinary shares outstanding during the reporting period. Diluted net loss allocated to ordinary shareholders per share is calculated based on the weighted average number of Ordinary Shares and dilutive potential Ordinary Shares outstanding during the period. Dilutive potential ordinary shares consist of the shares issuable upon the exercise of options and upon the vesting of restricted shares under the treasury stock method. In net loss periods, basic and diluted net loss per share are identical since the effect of potential ordinary shares is anti-dilutive and therefore excluded. Basic and diluted loss per share for the three and nine months ended September 30, 2016 and 2015 were calculated as follows: Three-Months Ended September 30, Nine-Months Ended September 30, 2016 2015 2016 2015 Net Loss $ (4,259 ) $ (4,900 ) $ (11,907 ) $ (14,812 ) Weighted average shares outstanding - basic and diluted 13,338,431 13,334,503 13,336,994 12,814,802 Net loss per ordinary share - basic and diluted $ (0.32 ) $ (0.37 ) $ (0.89 ) $ (1.16 ) Antidilutive securities, which consist of options and restricted shares that are not included in the diluted net loss per share calculation, consisted of an aggregate of approximately 1,073,655 and 1,094,974 for the three months ended September 30, 2016 and 2015, respectively, and 1,095,255 and 924,660 weighted average shares for the nine months ended September 30, 2016 and 2015, respectively.

Intangible Assets

Intangible Assets	9 Months Ended
	Sep. 30, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible Assets	(4) Intangible Assets On August 2, 2016, Presbia Ireland, Limited, a wholly-owned subsidiary of the Company, entered into an asset purchase agreement (the “Agreement”) with Neoptics AG (“Neoptics”) pursuant to which the Company acquired certain assets from Neoptics for an aggregate purchase price of 1.6 million Swiss Francs (approximately $1.6 million based on the exchange rate between the Swiss Franc and the US Dollar on August 2, 2016) payable in three equal installments on each of August 2, 2016, December 31, 2017 and December 31, 2018. The assets being acquired include patents, pending patents, and other immaterial assets. Effective August 2, 2016, the Company shall be responsible for all expenses associated with such assets. Pursuant to the terms of the Agreement, the acquisition closed on August 2, 2016. We paid $0.6 million in cash in exchange for these patents and patent applications in the three months ended September 30, 2016. The useful life of the patents was determined to be 12 years and 4 months and will be amortized through November 25, 2028. The Company recorded amortization expense of approximately $22,000 with net carrying amount of approximately $1,581,000 as of September 30, 2016. The annual future amortization is approximately $130,000 through 2028. As part of this transaction, we established a long term liability of $1.0 million to reflect the two remaining installments. Assumed long-term liability will be re-measured monthly against fluctuations in the exchange rate between the Swiss Franc and the US Dollar.

Share Based Awards

Share Based Awards	9 Months Ended
	Sep. 30, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share Based Awards	(5) Share Based Awards Equity Issued by Parent Liquidation of Presbia Holdings As described in the Company’s Annual Report on form 10-K for the fiscal year ended December 31, 2015, in May 2015 pursuant to a plan to liquidate the Parent and distribute all of its assets to its ordinary shareholder by August 2015, the shareholders of the Parent approved a plan in which all options and unvested restricted shares outstanding as of May 13, 2015 were to become fully vested immediately, and, in the case of the options, the expiration date of the options were accelerated to June 15, 2015. By November 2015, the Company’s Parent was dissolved, and, as such, no share-based compensation expense was recognized in the three and nine months ended September 30, 2016. Options Prior to 2014, the Parent granted options to purchase its ordinary shares to both employees and non-employees of the Company and share-based compensation related to such awards was recognized as expense in the Company’s Consolidated Statements of Operation and Comprehensive Loss for all reported periods including the three and nine months ended September 30, 2015. Information regarding awards granted in periods prior to 2014 is available in the Company's Annual Reports on Form 10-K for the fiscal years ended December 31, 2015 and 2014. Restricted Shares No restricted shares were granted by the Parent during the three and nine months ended September 30, 2015, and, similarly, as of June 15, 2015, the Parent accelerated vesting of all unvested restricted shares. As of September 30, 2015, there were no unvested restricted shares of the Parent and approximately $104,000 was recognized as incremental stock-based compensation expense due to the acceleration of the vesting dates in the three and nine month periods ended September 30, 2015. Unrecognized Share-based Compensation As of September 30, 2015 and 2016, there was no unrecognized stock-based compensation expense related to the awards issued by the Parent. Equity Issued by Presbia PLC Presbia Incentive Plan On January 14, 2015, the Company approved a compensation incentive plan (the “Presbia Incentive Plan”). The Presbia Incentive Plan permits the Company to grant awards of options, restricted shares, share appreciation rights, restricted share units, performance shares, performance share units, dividend equivalent rights in respect of awards and other share-based and cash-based awards, including annual and long-term cash incentive awards. A total of 2,200,000 ordinary shares were authorized for issuance under the Presbia Incentive Plan of which approximately 336,157 were available on September 30, 2016 for future grants and awards. The exercise price of each option award shall be determined by the Board of Directors (or a committee thereof) at the date of grant in accordance with the terms of the Presbia Incentive Plan awards, and generally vest 20% annually over a five-year period and expire no later than 10 years from the grant date. The Presbia Incentive Plan terminates on January 14, 2025, unless terminated earlier by the board of directors. Awards under the Presbia Incentive Plan may be granted to employees, directors, consultants and other persons who perform services for the Company or a subsidiary of the Company. The following table shows share-based compensation expense based upon all equity awards issued by Presbia PLC included in the Consolidated Statements of Operations and Comprehensive Loss for the three and nine months ended September 30, 2016 and 2015. Three-Months Ended September 30, Nine-Months Ended September 30, 2016 2015 2016 2015 Research and development $ 35 $ 53 $ 105 $ 161 General and administrative 405 334 1,145 1,554 Sales and marketing 139 46 289 122 $ 579 $ 433 $ 1,539 $ 1,837 Options The following table sets forth the Company’s option activity for the nine months ended September 30, 2016: Number of Presbia Shares Weighted Average Exercise Price Per Share Aggregate Intrinsic Value Balance, January 1, 2016 1,084,583 — — Granted — — — Exercised — — — Forfeited/cancelled/expired (30,833 ) $ 8.43 — Balance, September 30, 2016 1,053,750 $ 9.76 — Vested, September 30, 2016 341,482 $ 9.82 — Not Vested, September 30, 2016 712,268 $ 9.74 — Exercisable, September 30, 2016 341,482 $ 9.82 — Employee Options The Company utilizes the Black-Scholes valuation model for estimating the fair value of granted stock options with the following assumptions in addition to the closing price of the Company’s ordinary shares on the date of the grant: (i) the Company estimates the expected term of the option utilizing the simplified method because of its limited history of option exercise activity and its options meet the criteria of a "plain-vanilla" option as defined by the Securities Exchange Commission (ii) due to its limited stock price volatility history, the Company uses a peer group average as permitted under Accounting Standards Codification (“ASC”) 718 consistent with the expected term of the stock option at the time of the grant and (iii) applies a risk-free interest rate based on the U.S. Treasury securities yield consistent with the expected term of the option at the time of the grant. The simplified method calculates the expected term as the average of the weighted average vesting period and contractual terms of the award. The following table presents the grant date assumptions used in the Black-Scholes model for determining the fair value of 0 and 5,000, and 0 and 1,027,500 employee options issued during the three and nine months ended September 30, 2016 and 2015, respectively: Three-Months Ended September 30, 2016 Three-Months Ended September 30, 2015 Nine-Months Ended September 30, 2016 Nine-Months Ended September 30, 2015 Stock price per share — $ 4.41 — $ 6.98 Expected term — 6.5 Yrs. — 5.5 - 6.5 Yrs. Volatility — 84.5% — 76.8% - 84.5% Dividends — — — — Risk-free rate — 2.0% — 1.3% - 2.0% The weighted-average grant date fair values of employee options granted during the three and nine months ended September 30, 2015 was $4.41 and $6.98 respectively, per share. For those options granted to employees, stock-based compensation expense was based upon the fair value of the option as of the grant-date and attributed to future reporting periods on a straight-line basis over the vesting period, or the requisite service period. The forfeiture rate, which reduces the amount of expense that is recorded reflecting the anticipated number of options that ultimately will vest in future periods, is subject to review and may be adjusted based upon experience. During 2015 and for the three months ended March 31, 2016, a 5% annualized forfeiture rate was applied. Based upon review of pre-vesting forfeitures, commencing with the second quarter of 2016, the forfeiture rate was reduced to 3%. Non-Employee Options During the three and nine months ended September 30, 2016 and 2015, 0 and 9,000, and 0 and 75,500 options, respectively, were granted to non-employee consultants and medical advisors. The following assumptions were used in the Black-Scholes valuation model to determine the option fair values: Three-Months Ended September 30, 2016 Three-Months Ended September 30, 2015 Nine-Months Ended September 30, 2016 Nine-Months Ended September 30, 2015 Stock price per share $ 4.35 $ 4.25 $ 4.42 $ 4.12 Expected term 8.6 Yrs. 9.5-9.8 Yrs. 8.9Yrs. 9.5-9.8 Yrs. Volatility 80.1% 78.8% 74% 78.8% Dividends — — — — Risk-free rate 1.6% 2.1% 1.6% 1.9% - 2.4% In contrast to the determination of the fair value of options granted to employees, which are determined based upon the grant-date assumptions and applying the Black-Scholes model, the fair values for non-employee options and the related stock-based compensation expense are remeasured each financial reporting period based upon the assumptions applicable on the dates in which the financial statements are prepared, which are disclosed in the preceding table. Because the performance criteria of these grants is based solely upon a requisite service period, but are subject to forfeiture if the service conditions are not met, stock-based compensation expense is determined by a straight-line attribution of the remeasured expense (mark-to-market) over the requisite service period subject to a forfeiture rate of 3%. As described in the preceding section, the annualized forfeiture rate was reduced from 5% to 3%. Restricted Shares Consistent with the Company’s director compensation policy, the Company’s board of directors approved a grant of 49,482 restricted ordinary shares of the Company, with a grant date of August 5, 2016 and a grant date value of $4.85 and a five-year vesting period consisting of 20% on each annual anniversary date commencing one-year following the date of grant. During the three and nine month periods ended September 30, 2016, 49,482 and 65,450 The following table sets forth the Company’s restricted share activity for the nine months ended September 30, 2016: Unvested Number of Shares Weighted Average Fair Value per Share Balance, December 31, 2015 20,289 Granted 65,450 $ 4.89 Vested (4,057 ) $ 4.35 Forfeited/cancelled — Unvested, September 30, 2016 81,682 $ 4.50 Restricted Share Units During the three and nine month periods ended September 30, 2016, the Board of Directors approved the award of 102,500 and 785,000 Fair value of the RSU’s awarded were determined using a Monte Carlo Simulation (“MCS”) methodology, which considers the separate probabilities that each of the price thresholds or market conditions will be achieved under the RSU Plan guidelines. Each probability is weighted by its respective price threshold, or its intrinsic value, which provides the basis for an aggregate fair value. The Company used the following key inputs in determining the fair value using the MCS model: (i) the volatility of the entity’s common stock and (ii) the closing price of the entity’s stock as of the measurement date of the RSU award. In accordance with GAAP, the Company recognizes as stock-based compensation expense, using a straight-line attribution method, the aggregate fair value over future periods based upon the respective derived service periods and fair values for each of the price thresholds as provided by the MCS model. A 3% forfeiture rate was applied to account for future cancellations and forfeitures. During the three and nine months ended September 30, 2016, approximately $148,000 and $262,000, respectively, was recorded as stock-based compensation related to the RSU Plan. No such expense was recognized in the same periods in 2015. During the three and nine month periods ended September 30, 2016, 102,500 and 785,000 restricted stock units, respectively, were granted to new employees. The following table sets forth the Company’s RSU activity for the nine months ended September 30, 2016: Unvested Number of Shares Weighted Average Fair Value per Share Balance, December 31, 2015 Granted 785,000 $ 3.07 Vested — — Forfeited/cancelled (62,500 ) $ 2.84 Unvested, September 30, 2016 722,500 $ 3.10 As of September 30, 2016, 722,500 RSU’s were outstanding with none vested. Unrecognized Share-based Compensation As of September 30, 2016 and 2015, there were $3.8 million and $4.7 million, respectively, of unrecognized compensation expense related to employee and non-employee options of the Company, which collectively is expected to be recognized by the Company over the weighted average vesting period of 2.0 and 3.9 years, respectively. Unrecognized compensation expense for the same periods related to restricted shares was $0.3 million and $0.1 million, respectively, and is expected to be recognized over the weighted average vesting periods of 2.8 and 4.7 years, respectively. As of September 30, 2016, there was approximately $1.7 million of unrecognized compensation expense with respect to the RSU’s over a weighted average remaining derived service period of 2.4 years.

Concentration of Credit Risk

Concentration of Credit Risk	9 Months Ended
	Sep. 30, 2016
Risks And Uncertainties [Abstract]
Concentration of Credit Risk	(6) Concentration of Credit Risk The Company had cash of $10.5 million and $25.4 million as of September 30, 2016 and 2015, respectively, which consists of checking account deposits. The Company maintains cash balances at financial institutions located in the United States and secured by the Federal Deposit Insurance Corporation up to $250,000. In the nine month period ended September 30, 2016 and 2015 there were three and five With respect to suppliers for the microlens, the Company has a five-year supplier agreement that will expire in January 2017 with a lens manufacturer in Israel from which the Company receives 100% of its lens supply for use in commercial activities outside the United States. The Company also has its own manufacturing facility in Irvine, California that we believe can be scaled to meet excessive lens demand or a possible disruption from our foreign supply source.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	(7) Income Taxes Deferred income tax assets and liabilities are recognized for temporary differences between financial statement and income tax carrying values, using tax rates in effect for the years such differences are expected to reverse. Due to uncertainties surrounding the Company's ability to generate future taxable income and consequently realize such deferred income tax assets, a full valuation allowance has been established. The Company continues to maintain a full valuation allowance against its deferred tax assets as of September 30, 2016. The impact of an uncertain income tax position on the income tax return must be recognized at the largest amount that is more likely than not to be sustained upon audit by the relevant tax authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. There have been no material changes in the Company's unrecognized tax benefits since December 31, 2015; and, as such, disclosures included in the Company's 2015 Annual Report on Form 10-K continue to be relevant for the period ended September 30, 2016.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2016
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	(8) Commitments and Contingencies In May 2012, the Company entered into a five-year non-cancelable lease for office and manufacturing space in Irvine, California that expires in May 2017, a 26-month sublease of office space in the same California location that commenced in June 2014 that expired in July 2016, a one-year lease (which is now month to month) in Dublin, Ireland that commenced on December 1, 2013, a 30-month lease in Amsterdam, the Netherlands that commenced on January 1, 2016 and a four-year lease for office space in Irvine, California that will commence on August 1, 2016 and will expire in September 2020. Aggregate rent expense for the three months ended September 30, 2016 and 2015 From time to time, the Company may be subject to legal proceedings and claims arising in the ordinary course of business. Management does not believe that the outcome of any of these matters will have a material effect on the Company’s consolidated financial operations .

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation. The accompanying consolidated financial statements have been derived from the historical cost basis of the assets and liabilities, financial condition and cash flows of Presbia PLC and Presbia Ireland, Limited, both organized in Ireland, Presbia Investments, a direct subsidiary of Presbia PLC organized in the Cayman Islands, and Presbia Ireland, Limited’s subsidiaries, Presbia USA, Inc., and OPL, LLC. Presbia USA, Inc. and OPL, LLC are both entities organized in the United States, and include Presbia USA, Inc.’s subsidiaries, Visitome, Inc. and PresbiBio, LLC, both organized in the United States, and OPL, LLC’s direct and indirect subsidiaries, PIP Holdings, C.V and Presbia Cooperatief U.A., both organized in the Netherlands, and PresbiOptical LLC, organized in the United States (collectively, including Presbia PLC, the “Company”). The accompanying consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). The Company’s fiscal year ends on December 31. The entities presented in the consolidated financial statements have been under common control during the periods presented. All intercompany accounts have been eliminated in consolidation.
Basis of Presentation	Basis of Presentation. The accompanying unaudited consolidated financial statements as of September 30, 2016 and for the three and nine-months ended September 30,, 2016 and 2015, respectively, have been prepared in accordance with United States generally accepted accounting principles (“U.S. GAAP”) for interim financial reporting, and with the instructions to Form 10-Q and Article 8 of Regulation S-X. These consolidated financial statements should be read in conjunction with the audited consolidated financial statements presented in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2015. The accompanying balance sheet as for December 31, 2015 has been derived from the audited financial statements at that date but does not include all the information and footnotes required by GAAP for complete financial statements. The results of operations for the three and nine-months ended September 30, 2016 are not necessarily indicative of the results to be anticipated for the entire year ending December 31, 2016, or any other period. In the opinion of management, the accompanying consolidated financial statements reflect all adjustments which are necessary for a fair presentation of the results of operations and cash flows for the periods presented. References to amounts in the consolidated financial statement sections are in thousands, except per share data, unless otherwise specified.
Reclassification of Prior Year Presentation	Reclassification of Prior Year Presentation. Certain prior year amounts have been reclassified for consistency with the current period presentation. These reclassifications had no effect on the reported results of operations and cash flows.
Liquidity	Liquidity The Company has incurred significant operating losses since inception and had relied on funding from Presbia Holdings (the “Parent”) to fund operations prior to its IPO on February 3, 2015. Presbia Holdings was dissolved on November 25, 2015 and ceased to be the Parent of Presbia PLC. At September 30, 2016, the Company has an accumulated deficit of $67.5 million. As the Company continues to incur losses, its transition to profitability will depend on the following: (i) the completion of its U.S. staged pivotal trial, obtaining FDA approval of its microlens and, if approval is received from the FDA, the commercialization of its product within the United States and (ii) the successful commercialization of its product in certain jurisdictions outside the United States in which the Company has market approval, including the European Economic Area. The Company may never achieve profitability, and unless and until it does, it will need to continue to raise additional capital. Management expects that existing cash as of September 30, 2016, coupled with anticipated revenues outside of the United States will be sufficient to meet the Company’s anticipated cash requirements through the second quarter of 2017
Foreign Currency	Foreign Currency The functional currency of subsidiaries outside the United States of America is the U.S. Dollar. Transactions in foreign currencies during the year are re-measured at rates of exchange on the dates of the transactions. Gains and losses related to re-measurement of items arising through operating activities are accounted for in the statement of operations and comprehensive loss and included in general and administrative expense. Aggregate foreign exchange loss was $24,000 and $41,000 for the three and nine-months ended September 30, 2016 the three and nine-months ended September 30,
Comprehensive Loss	Comprehensive Loss Comprehensive income or loss is defined as a change in equity of a company attributable to all transactions excluding those transactions resulting from investment with owners and distributions to owners. There were no differences between net loss and comprehensive loss in the three and nine-months ended September 30, 2016
Recent Accounting Standards	Recent Accounting Standards In March 2016, the Financial Accounting Standards Board issued Accounting Standard Update (ASU) 2016-09 Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. ASU 2016-09 modifies multiple provisions intended to simplify various aspects of accounting for share-based payments including income tax consequences, accounting for forfeitures, classification of awards as either equity or liabilities, and classification on the statement of cash flows. ASU 2016-09 will be effective for the Company beginning in the first quarter of 2017. The adoption of this standard is not expected to have a material impact on the Company's financial position or results of operations. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The new standard requires lessees to recognize most leases on their balance sheets as lease liabilities with corresponding right-of-use assets and eliminates certain real estate-specific provisions. ASU 2016-02 will be effective for the Company in the first quarter of 2019. ASU 2016-02 will be adopted on a modified retrospective transition basis for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The Company is currently evaluating the impact of ASU 2016-02 on its consolidated financial statements. In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements - Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. The new standard requires management to assess, at each annual and interim reporting period, an entity's ability to continue as a going concern within one year after the date that the financial statements are issued and to provide related footnote disclosures. ASU 2014-15 will be effective for the Company beginning in the first quarter of 2017. The adoption of this standard is not expected to have a material impact on the Company’s financial position or results of operations. In June 2014, the FASB issued ASU 2014-12, Compensation - Stock Compensation (Topic 781): Accounting for Share-Based Payments When the Terms of an Award Provide that a Performance Target Could be Achieved after the Requisite Service Period. The new standard requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. As such, the performance target should not be reflected in estimating the grant date fair value of the award. Compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the periods for which the requisite service has already been rendered. The Company adopted ASU 201-12 effective as of January 1, 2016, and the adoption of this standard had no impact on the Company's financial position or results of operations. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The new standard is based on the principle that revenue should be recognized to depict the transfer of promised 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. ASU 2014-09 will be effective for the Company in the first quarter of 2018 and allows for full retrospective or a modified retrospective adoption approach. The Company has not yet assessed the potential impact of ASU 2014-09 on its consolidated financial statements.

Loss per Share (Tables)

Loss per Share (Tables)	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Schedule of Calculation of Basic and Diluted Loss per Share	Basic and diluted loss per share for the three and nine months ended September 30, 2016 and 2015 were calculated as follows: Three-Months Ended September 30, Nine-Months Ended September 30, 2016 2015 2016 2015 Net Loss $ (4,259 ) $ (4,900 ) $ (11,907 ) $ (14,812 ) Weighted average shares outstanding - basic and diluted 13,338,431 13,334,503 13,336,994 12,814,802 Net loss per ordinary share - basic and diluted $ (0.32 ) $ (0.37 ) $ (0.89 ) $ (1.16 )

Share Based Awards (Tables)

Share Based Awards (Tables)	9 Months Ended
	Sep. 30, 2016
Share-Based Compensation Expense Included in Consolidated Statements of Operations and Comprehensive Loss	The following table shows share-based compensation expense based upon all equity awards issued by Presbia PLC included in the Consolidated Statements of Operations and Comprehensive Loss for the three and nine months ended September 30, 2016 and 2015. Three-Months Ended September 30, Nine-Months Ended September 30, 2016 2015 2016 2015 Research and development $ 35 $ 53 $ 105 $ 161 General and administrative 405 334 1,145 1,554 Sales and marketing 139 46 289 122 $ 579 $ 433 $ 1,539 $ 1,837
Schedule of Option Activity	The following table sets forth the Company’s option activity for the nine months ended September 30, 2016: Number of Presbia Shares Weighted Average Exercise Price Per Share Aggregate Intrinsic Value Balance, January 1, 2016 1,084,583 — — Granted — — — Exercised — — — Forfeited/cancelled/expired (30,833 ) $ 8.43 — Balance, September 30, 2016 1,053,750 $ 9.76 — Vested, September 30, 2016 341,482 $ 9.82 — Not Vested, September 30, 2016 712,268 $ 9.74 — Exercisable, September 30, 2016 341,482 $ 9.82 —
Schedule of Restricted Shares Activity	The following table sets forth the Company’s restricted share activity for the nine months ended September 30, 2016: Unvested Number of Shares Weighted Average Fair Value per Share Balance, December 31, 2015 20,289 Granted 65,450 $ 4.89 Vested (4,057 ) $ 4.35 Forfeited/cancelled — Unvested, September 30, 2016 81,682 $ 4.50
Schedule of RSU Activity	The following table sets forth the Company’s RSU activity for the nine months ended September 30, 2016: Unvested Number of Shares Weighted Average Fair Value per Share Balance, December 31, 2015 Granted 785,000 $ 3.07 Vested — — Forfeited/cancelled (62,500 ) $ 2.84 Unvested, September 30, 2016 722,500 $ 3.10
Employee options [Member]
Schedule of Black-Scholes Valuation Model Assumptions for Estimating the Fair Value of Share-Based Compensation	The following table presents the grant date assumptions used in the Black-Scholes model for determining the fair value of 0 and 5,000, and 0 and 1,027,500 employee options issued during the three and nine months ended September 30, 2016 and 2015, respectively: Three-Months Ended September 30, 2016 Three-Months Ended September 30, 2015 Nine-Months Ended September 30, 2016 Nine-Months Ended September 30, 2015 Stock price per share — $ 4.41 — $ 6.98 Expected term — 6.5 Yrs. — 5.5 - 6.5 Yrs. Volatility — 84.5% — 76.8% - 84.5% Dividends — — — — Risk-free rate — 2.0% — 1.3% - 2.0%
Non-employee options [Member]
Schedule of Black-Scholes Valuation Model Assumptions for Estimating the Fair Value of Share-Based Compensation	During the three and nine months ended September 30, 2016 and 2015, 0 and 9,000, and 0 and 75,500 options, respectively, were granted to non-employee consultants and medical advisors. The following assumptions were used in the Black-Scholes valuation model to determine the option fair values: Three-Months Ended September 30, 2016 Three-Months Ended September 30, 2015 Nine-Months Ended September 30, 2016 Nine-Months Ended September 30, 2015 Stock price per share $ 4.35 $ 4.25 $ 4.42 $ 4.12 Expected term 8.6 Yrs. 9.5-9.8 Yrs. 8.9Yrs. 9.5-9.8 Yrs. Volatility 80.1% 78.8% 74% 78.8% Dividends — — — — Risk-free rate 1.6% 2.1% 1.6% 1.9% - 2.4%

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Accumulated deficit	$ (67,454)	$ (55,547)

Summary of Significant Accoun18

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
General and Administrative Expense [Member]
Subsidiary Sale Of Stock [Line Items]
Aggregate foreign exchange loss	$ 24,000	$ 3,000	$ 41,000	$ 3,000

Loss per Share - Schedule of Ca

Loss per Share - Schedule of Calculation of Basic and Diluted Loss per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Basic and diluted net loss per share
Net loss	$ (4,259)	$ (4,900)	$ (11,907)	$ (14,812)
Weighted average shares outstanding - basic and diluted	13,338,431	13,334,503	13,336,994	12,814,802
Net loss per ordinary share - basic and diluted	$ (0.32)	$ (0.37)	$ (0.89)	$ (1.16)

Loss per Share - Additional Inf

Loss per Share - Additional Information (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Antidilutive securities, not included in diluted net loss per calculation	1,073,655	1,094,974	1,095,255	924,660

Intangible Assets - Additional

Intangible Assets - Additional Information (Detail) SFr in Millions	Aug. 02, 2016USD ($)Installment	Aug. 02, 2016CHF (SFr)Installment	Sep. 30, 2016USD ($)Installment	Sep. 30, 2016USD ($)
Finite Lived Intangible Assets [Line Items]
Payment to acquire patents and patent applications				$ 536,000
Long-term liability for patents and patent applications remaining installments			$ 1,032,000	$ 1,032,000
Patents [Member]
Finite Lived Intangible Assets [Line Items]
Useful life				12 years 4 months
Intangible asset end of useful life				Nov. 25, 2028
Amortization expense				$ 22,000
Net carrying amount			1,581,000	1,581,000
Annual future amortization through 2028				130,000
Neoptics AG [Member]
Finite Lived Intangible Assets [Line Items]
Aggregate purchase price of assets	$ 1,600,000	SFr 1.6
Number of equal installments | Installment	3	3
Payment to acquire patents and patent applications			600,000
Long-term liability for patents and patent applications remaining installments			$ 1,000,000	$ 1,000,000
Number of remaining installments | Installment			2
Neoptics AG [Member] | First Installment [Member]
Finite Lived Intangible Assets [Line Items]
Asset purchase price payable installment due date	Aug. 2, 2016	Aug. 2, 2016
Neoptics AG [Member] | Second Installment [Member]
Finite Lived Intangible Assets [Line Items]
Asset purchase price payable installment due date	Dec. 31, 2017	Dec. 31, 2017
Neoptics AG [Member] | Third Installment [Member]
Finite Lived Intangible Assets [Line Items]
Asset purchase price payable installment due date	Dec. 31, 2018	Dec. 31, 2018

Share Based Awards - Additional

Share Based Awards - Additional Information (Detail) - USD ($)	Aug. 05, 2016	Jan. 14, 2015	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated share-based compensation expense			$ 579,000			$ 433,000	$ 1,539,000	$ 1,837,000
Options outstanding			1,053,750				1,053,750		1,084,583
Non-employee consultants and medical advisors [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Options granted			0			9,000	0	75,500
Presbia Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Awards vesting period		5 years
Ordinary shares authorized for issuance		2,200,000
Ordinary shares available for future grants and awards			336,157				336,157
Award expiration period		10 years
Award expiration date							Jan. 14, 2025
Presbia Incentive Plan [Member] | Over five year period [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Generally vesting percentage for annual		20.00%
Employee options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Options granted			0			5,000	0	1,027,500
Weighted average grant date fair value						$ 4.41		$ 6.98
Percentage of estimated forfeiture rate				3.00%	5.00%				5.00%
Restricted shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Restricted shares granted	49,482		49,482				65,450
Restricted shares/RSUs outstanding			81,682				81,682		20,289
Awards vesting period	5 years						5 years
Generally vesting percentage for annual	20.00%						20.00%
Weighted average grant date fair value, granted	$ 4.85		$ 4.85				$ 4.89
Restricted shares units vested							4,057
Unrecognized compensation expense, weighted average period of recognition							2 years 9 months 18 days	4 years 8 months 12 days
Unrecognized compensation expense related to restricted shares/RSUs			$ 300,000			$ 100,000	$ 300,000	$ 100,000
Non-employee options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Percentage of estimated forfeiture rate				3.00%	5.00%
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated share-based compensation expense			$ 148,000				$ 262,000
Restricted shares granted			102,500				785,000
Restricted shares/RSUs outstanding			722,500				722,500
Award expiration period							7 years
Generally vesting percentage for annual							20.00%
Percentage of estimated forfeiture rate							3.00%
Weighted average grant date fair value, granted							$ 3.07
Consecutive trading days							20 days
Wait or service period							1 year
Restricted shares units vested							0
Unrecognized compensation expense, weighted average period of recognition							2 years 4 months 24 days
Unrecognized compensation expense related to restricted shares/RSUs			$ 1,700,000				$ 1,700,000
Restricted Stock Units [Member] | Threshold Price Period 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share price threshold							$ 10
Restricted Stock Units [Member] | Threshold Price Period 2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share price threshold							15
Restricted Stock Units [Member] | Threshold Price Period 3 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share price threshold							20
Restricted Stock Units [Member] | Threshold Price Period 4 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share price threshold							25
Restricted Stock Units [Member] | Threshold Price Period 5 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share price threshold							$ 30
Employee and non-employee options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Unrecognized compensation expense related to options			3,800,000			$ 4,700,000	$ 3,800,000	$ 4,700,000
Unrecognized compensation expense, weighted average period of recognition							2 years	3 years 10 months 24 days
Presbia Holdings [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated share-based compensation expense			0				$ 0
Options outstanding						0		0
Unrecognized stock-based compensation expense			$ 0			$ 0	$ 0	$ 0
Presbia Holdings [Member] | Employee options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Incremental stock-based compensation expense						21,000		21,000
Presbia Holdings [Member] | Restricted shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Incremental stock-based compensation expense						$ 104,000		$ 104,000
Restricted shares granted						0		0
Restricted shares/RSUs outstanding						0		0

Share Based Awards - Share-Base

Share Based Awards - Share-Based Compensation Expense Included in Consolidated Statements of Operations and Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 579	$ 433	$ 1,539	$ 1,837
Research and development [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	35	53	105	161
General and Administrative Expense [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	405	334	1,145	1,554
Sales and marketing [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 139	$ 46	$ 289	$ 122

Share Based Awards - Schedule o

Share Based Awards - Schedule of Option Activity (Detail) - $ / shares	9 Months Ended
	Sep. 30, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of Shares, Beginning balance	1,084,583
Number of Shares, Forfeited/cancelled/expired	(30,833)
Number of Shares, Ending Balance	1,053,750
Number of Shares, Vested	341,482
Number of Shares, Not Vested	712,268
Number of Shares, Exercisable	341,482
Weighted Average Exercise Price Per Share, Forfeited/cancelled/expired	$ 8.43
Weighted Average Exercise Price Per Share, Ending Balance	9.76
Weighted Average Exercise Price Per Share, Vested	9.82
Weighted Average Exercise Price Per Share, Not Vested	9.74
Weighted Average Exercise Price Per Share, Exercisable	$ 9.82

Share Based Awards - Schedule25

Share Based Awards - Schedule of Black-Scholes Valuation Model Assumptions for Estimating the Fair Value of Share-Based Compensation (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Employee options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock price per share		$ 4.41		$ 6.98
Expected term		6 years 6 months
Volatility		84.50%
Volatility minimum				76.80%
Volatility maximum				84.50%
Risk-free rate		2.00%
Risk-free rate minimum				1.30%
Risk-free rate maximum				2.00%
Employee options [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Expected term				5 years 6 months
Employee options [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Expected term				6 years 6 months
Non-employee options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock price per share	$ 4.35	$ 4.25	$ 4.42	$ 4.12
Expected term	8 years 7 months 6 days		8 years 10 months 24 days
Volatility	80.10%	78.80%	74.00%	78.80%
Risk-free rate	1.60%	2.10%	1.60%
Risk-free rate minimum				1.90%
Risk-free rate maximum				2.40%
Non-employee options [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Expected term		9 years 6 months		9 years 6 months
Non-employee options [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Expected term		9 years 9 months 18 days		9 years 9 months 18 days

Share Based Awards - Schedule26

Share Based Awards - Schedule of Restricted Share Activity (Detail) - Restricted shares [Member] - $ / shares	Aug. 05, 2016	Sep. 30, 2016	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Unvested Number of Shares, Beginning balance			20,289
Unvested Number of Shares, Granted	49,482	49,482	65,450
Unvested Number of Shares, Vested			(4,057)
Unvested Number of Shares, Ending Balance		81,682	81,682
Weighted Average Fair Value per Share, Granted	$ 4.85	$ 4.85	$ 4.89
Weighted Average Fair Value per Share, Vested			4.35
Weighted Average Fair Value per Share, Ending Balance		$ 4.50	$ 4.50

Share Based Awards - Schedule27

Share Based Awards - Schedule of RSU Activity (Detail) - Restricted Share Units [Member] - $ / shares	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Unvested Number of Shares, Granted	102,500	785,000
Unvested Number of Shares, Vested		0
Unvested Number of Shares, Forfeited/cancelled		(62,500)
Unvested Number of Shares, Ending Balance	722,500	722,500
Weighted Average Fair Value per Share, Granted		$ 3.07
Weighted Average Fair Value per Share, Forfeited/cancelled		2.84
Weighted Average Fair Value per Share, Ending Balance	$ 3.10	$ 3.10

Concentration of Credit Risk -

Concentration of Credit Risk - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2016USD ($)Customer	Sep. 30, 2015USD ($)Customer	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Concentration Risk [Line Items]
Cash	$ 10,527,000	$ 25,371,000	$ 21,749,000	$ 138,000
Number of customers | Customer	3	5
Supplier agreement term	5 years
Supplier agreement, expiration date	2017-01
Sales [Member] | Customer Concentration [Member]
Concentration Risk [Line Items]
Concentration risk percentage	100.00%	100.00%
Cost of Goods, Total [Member] | Supplier Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	100.00%
Federal Deposit Insurance Corporation [Member] | Maximum [Member]
Concentration Risk [Line Items]
Cash	$ 250,000

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Description of uncertain income tax position being recognized	An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained.

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - Facility Leases [Member] - USD ($)	Aug. 01, 2016	Jan. 02, 2016	Dec. 01, 2013	May 31, 2012	Jun. 30, 2014	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Commitments And Contingencies [Line Items]
Rent expense						$ 94,000	$ 51,000	$ 212,000	$ 152,000
California [Member]
Commitments And Contingencies [Line Items]
Non-cancelable lease term				5 years
Lease expiration period	Sep. 30, 2020			May 31, 2017
Lease period	4 years
Ireland [Member]
Commitments And Contingencies [Line Items]
Lease period			1 year
Lease renewal term								1 month
The Netherlands [Member]
Commitments And Contingencies [Line Items]
Lease period		30 months
Sub Lease Agreement [Member] | California [Member]
Commitments And Contingencies [Line Items]
Lease expiration period					Jul. 31, 2016
Lease period					26 months