Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) (USD $) | 0 Months Ended | 3 Months Ended | 0 Months Ended | 1 Months Ended | 59 Months Ended | 1 Months Ended | 12 Months Ended |
In Millions, except Share data, unless otherwise specified | Apr. 22, 2015 | Mar. 31, 2015 | Apr. 10, 2014 | Mar. 19, 2014 | Jul. 25, 2014 | Apr. 24, 2014 | Jun. 19, 2013 | Dec. 31, 2014 |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share) | | | | | 2.145 | | | |
Subsequent Event [Member] | 2013 Equity Incentive Plan [Member] | | | | | | | | |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 1,000,638 | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Percent of Additional Shares Authorized | 5.00% | | | | | | | |
Subsequent Event [Member] | 2014 Equity Incentive Plan [Member] | | | | | | | | |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 45,000 | | | | | | | |
Increase Event [Member] | 2014 Equity Incentive Plan [Member] | | | | | | | | |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized | | 1,200,000 | | | | | | |
Certain Operational Milestone [Member] | Common Stock [Member] | | | | | | | | |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | | 699,281 | | | | | | |
Certain Operational Milestone [Member] | Warrant [Member] | | | | | | | | |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Proceeds from Other Equity (in Dollars) | | 3 | | | | | | |
Common Stock [Member] | 2013 Equity Incentive Plan [Member] | | | | | | | | |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | | | 36,000 | 204,000 | | | | |
Common Stock [Member] | | | | | | | | |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | | | | | 699,281 | | | |
1999 Stock Option Plan [Member] | | | | | | | | |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period | | | | | 36,000 | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | | 0 | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | | 0 | | | | | | |
2006 VBI US Stock Option Plan [Member] | VBI US [Member] | | | | | | | | |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | | 2,724,909 | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | | 100,541 | | | | | | |
2006 VBI US Stock Option Plan [Member] | | | | | | | | |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | | 2,624,368 | | | | | | 2,624,368 |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | | 2,724,909 | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | | 100,541 | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | | | | | | 1,844,592 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | | 48 months | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | | 0.00% | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate | | 1.51% | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate | | 84.35% | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | | 10 years | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | | 0 | | | | | | |
2013 Equity Incentive Plan [Member] | | | | | | | | |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period | | 51,129 | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | | | | | | | | 8,871 |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | | 300,000 | | | | | 300,000 | |
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | | 240,000 | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | | | | | | | 60,000 | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | | 0 | | | | | | |
2014 Equity Incentive Plan [Member] | | | | | | | | |
Note 6 - Stockholders' Deficiency and Additional Paid-In Capital (Details) [Line Items] | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | | | | | | | | 164,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | | 815,688 | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | | 20,001 | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | | | | | | | | 164,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Percent of Additional Shares Authorized | | 5.00% | | | | | | |
Stock Issued During Period, Shares, Restricted Stock Award, Gross | | 0 | | | | | | 20,001 |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | | 631,687 | | | | | | |