Statement of Financial Position [Abstract] Total current assets Total assets Total current liabilities Total liabilities Total shareholders’ equity Total liabilities and shareholders’ equity Income Statement [Abstract] Total operating expenses Total other income Net loss Net loss Statement of Comprehensive Income [Abstract] Comprehensive loss Statement of Cash Flows [Abstract] Net cash used in operating activities Net cash used in investing activities Net cash provided by financing activities Net change in cash and cash equivalents Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash and cash equivalents Disclosure Text Block [Abstract] Accounting Policies [Abstract] Share-based Compensation Expense [Abstract] Income Statement Location [Axis] Research and Development Expense [Member] Share-based compensation expense General and Administrative Expense [Member] Stock Option Valuation Assumptions [Abstract] Range [Axis] Minimum [Member] Maximum [Member] Income Tax Disclosure [Abstract] Stockholders' Equity Note [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Changes in Common Stock Options Issued [Abstract] Options outstanding at December 31, 2014 (in Shares) Options outstanding at March 31, 2015 (in Shares) Options outstanding at December 31, 2014 Options outstanding at March 31, 2015 Earnings Per Share [Abstract] Computation of Basic and Diluted Net Loss Per Share [Abstract] Potentially Dilutive Securities Outstanding [Abstract] Antidilutive Securities [Axis] Employee Stock Option [Member] Warrant [Member] Related Party Transactions [Abstract] Subsequent Events [Abstract] Assets Current assets: Prepaid expenses and other current assets Deferred offering costs Property and equipment, net Liabilities and shareholders’ equity Current liabilities: Accounts payable Accrued expenses Long-term liabilities: Deferred rent Shareholders’ equity: Common stock, no par value, unlimited shares authorized, 27,726,631 and 27,546,632 shares outstanding at March 31, 2015 and December 31, 2014, respectively Common stock, par value Common stock, shares outstanding Accumulated other comprehensive loss Accumulated deficit Operating expenses: Research and development General and administrative Loss from operations Other income: Foreign exchange gain Net loss per share—basic and diluted (in Dollars per share) Net loss per share—basic and diluted Shares used to compute basic and diluted net loss per share (in Shares) Weighted-average number of common shares—basic and diluted Foreign currency translation adjustment Operating activities Adjustments to reconcile net loss to net cash used in operating activities: Depreciation Share-based compensation expense Changes in operating assets and liabilities: Accounts payable Accrued expenses Deferred rent Investing activities Financing activities Issuance of common stock and warrants, net Issuance of common stock under stock option plan Collection of subscription receivable Effect of foreign exchange rate on cash and cash equivalents Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Significant Accounting Policies [Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Expected volatility Risk-free interest rate Expected life (in years) Weighted-average grant date fair value per share (in Dollars per share) Income Tax Disclosure [Text Block] Stockholders' Equity Note Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Granted (in Shares) Granted Exercised Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Forfeitures Earnings Per Share [Text Block] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Antidilutive securities Related Party Transactions Disclosure [Text Block] Subsequent Events [Text Block] Prepaid expenses and other current assets Purchase of property and equipment Deferred offering costs Payments of Stock Issuance Costs Exercised (in Shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Forfeitures (in Shares) Property, Plant and Equipment, Type [Axis] Furniture and Fixtures [Member] Office Equipment [Member] Equipment [Member] Vehicles [Member] Other Significant Noncash Transaction [Axis] Non-cash Consideration of Stock Issuance Costs [Member] Award Type [Axis] Plan Name [Axis] The Plan [Member] Title of Individual [Axis] Any One Person [Member] Related Party Transaction [Axis] Legal Fees, Related Party [Member] Related Party [Axis] Former Director [Member] Subsequent Event Type [Axis] Subsequent Event [Member] Nature of Expense [Axis] Underwriting Discounts and Commissions [Member] Other Offering Expenses [Member] Income Tax Expense (Benefit) (in Dollars) Property, Plant and Equipment, Useful Life Number of Operating Segments Stock Issued During Period, Shares, New Issues Stock Issued During Period, Shares, New Issues (in Shares) Share Price Share Price (in Dollars per share) Proceeds from Issuance of Common Stock Class of Warrant or Right, Issued, Number of Warrants Per Share Class of Warrant or Right, Expiration Period Class of Warrant or Right, Exercise Price of Warrants or Rights Class of Warrant or Right, Exercised During Period Proceeds from Warrant Exercises Class of Warrant or Right, Outstanding Common Stock, Share Subscribed but Unissued, Subscriptions Receivable Other Significant Noncash Transaction, Value of Consideration Given Proceeds from Stock Options Exercised Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options (in Dollars) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Related Party Transaction, Amounts of Transaction Accounts Payable, Related Parties Stock Issued During Period, Value, New Issues Proceeds from Issuance Initial Public Offering Basis of Accounting, Policy [Policy Text Block] Consolidation, Policy [Policy Text Block] Use of Estimates, Policy [Policy Text Block] Research and Development Expense, Policy [Policy Text Block] Income Tax, Policy [Policy Text Block] Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Cash and Cash Equivalents, Policy [Policy Text Block] Concentration Risk, Credit Risk, Policy [Policy Text Block] Fair Value Measurement, Policy [Policy Text Block] Property, Plant and Equipment, Policy [Policy Text Block] Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Deferred Charges, Policy [Policy Text Block] Foreign Currency Transactions and Translations Policy [Policy Text Block] Comprehensive Income, Policy [Policy Text Block] Segment Reporting, Policy [Policy Text Block] Earnings Per Share, Policy [Policy Text Block] Subsequent Events, Policy [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] Income Statement Location [Domain] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Range [Domain] Note 2 - Significant Accounting Policies (Details) - Stock Option Valuation Assumptions [Table] Note 2 - Significant Accounting Policies (Details) - Stock Option Valuation Assumptions [Line Items] Note 5 - Common Stock Options (Details) - Changes in Common Stock Options Issued [Table] Note 5 - Common Stock Options (Details) - Changes in Common Stock Options Issued [Line Items] Antidilutive Securities, Name [Domain] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Property, Plant and Equipment, Type [Domain] Note 2 - Significant Accounting Policies (Details) [Table] Note 2 - Significant Accounting Policies (Details) [Line Items] Other Significant Noncash Transaction, Name [Domain] Note 4 - Common Stock (Details) [Table] Note 4 - Common Stock (Details) [Line Items] Plan Name [Domain] Equity Award [Domain] Relationship to Entity [Domain] Note 5 - Common Stock Options (Details) [Table] Note 5 - Common Stock Options (Details) [Line Items] Related Party Transaction [Domain] Related Party [Domain] Note 7 - Related-Party Transactions (Details) [Table] Note 7 - Related-Party Transactions (Details) [Line Items] Subsequent Event Type [Domain] Interim Period, Costs Not Allocable [Domain] Note 8 - Subsequent Events (Details) [Table] Note 8 - Subsequent Events (Details) [Line Items] The number of warrants or rights exercised during period. Represents the period for which a warrant is exercisable. Represents the number of warrants attached to each share of common stock issued. Represents the cash inflow from the collection of subscription receivable. Any One Person [Member] Represents any one person. Former Director [Member] Represents a firm in which a former director is a senior partner. Legal Services Related Party [Member] Represents legal fees incurred from related party. Noncash Consideration Of Stock Issuance Costs [Member] Represents the non-cash consideration of stock issuance costs. Other Offering Expenses [Member] Represents other offering expenses. The Plan [Member] Represents a stock option plan ("the Plan"). Underwriting Discounts And Commissions [Member] Represents underwriting discounts and commissions. Document and Entity Information [Abstract] Increase (Decrease) in Deferred Liabilities Net Cash Provided by (Used in) Operating Activities Net Cash Provided by (Used in) Financing Activities Share-based Compensation Entity Central Index Key Increase (Decrease) in Prepaid Expense and Other Assets Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Amendment Flag Operating Expenses Entity Public Float Document Period End Date Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Entity Registrant Name Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Liabilities and Equity Assets, Current Document Fiscal Period Focus Cash and Cash Equivalents, Period Increase (Decrease) Entity Current Reporting Status Liabilities, Current Document Type Document Fiscal Year Focus Payments to Acquire Property, Plant, and Equipment Assets [Standard Label] Entity Common Stock, Shares Outstanding Increase (Decrease) in Accounts Payable Net Cash Provided by (Used in) Investing Activities Current Fiscal Year End Date Stockholders' Equity Attributable to Parent Increase (Decrease) in Accounts Payable and Accrued Liabilities Liabilities Entity Voluntary Filers Entity Filer Category Nonoperating Income (Expense) Entity Well-known Seasoned Issuer Comprehensive Income (Loss), Net of Tax, Attributable to Parent Amendment Description Statement [Table] Statement [Line Items] Scenario [Axis]