Note 14 - License Agreements (Details)
In Millions, unless otherwise specified
12 Months Ended 12 Months Ended 132 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended
Dec. 31, 2014
USD ($)
Dec. 31, 2014
Benign Prostate Hyperplasia [Member]
Regulatory Approvals [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Benign Prostate Hyperplasia [Member]
Gross Sale Targets [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Benign Prostate Hyperplasia [Member]
Minimum [Member]
UVIC Industry Partnerships Inc. [Member]
Dec. 31, 2014
Benign Prostate Hyperplasia [Member]
Maximum [Member]
UVIC Industry Partnerships Inc. [Member]
Dec. 31, 2014
Benign Prostate Hyperplasia [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Benign Prostate Hyperplasia [Member]
UVIC Industry Partnerships Inc. [Member]
CAD
Dec. 31, 2013
Benign Prostate Hyperplasia [Member]
USD ($)
Dec. 31, 2014
Prostate Cancer [Member]
Regulatory Approvals [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Prostate Cancer [Member]
Gross Sale Targets [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Prostate Cancer [Member]
Development Activities [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Prostate Cancer [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2004
Prostate Cancer [Member]
UVIC Industry Partnerships Inc. [Member]
CAD
Dec. 31, 2014
Prostate Cancer [Member]
UVIC Industry Partnerships Inc. [Member]
CAD
Dec. 31, 2014
Prostatitis and other Diseases of Prostate [Member]
Regulatory Approvals [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Prostatitis and other Diseases of Prostate [Member]
Gross Sale Targets [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Prostatitis and other Diseases of Prostate [Member]
Development Activities [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Prostatitis and other Diseases of Prostate [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Milestones not Associated with Indication [Member]
Regulatory Approvals [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Milestones not Associated with Indication [Member]
Gross Sale Targets [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Milestones not Associated with Indication [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Minimum [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
Dec. 31, 2014
Maximum [Member]
Kissei Pharmaceuticals Co. Ltd. [Member]
Apr. 30, 2010
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2014
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Dec. 31, 2013
Kissei Pharmaceuticals Co. Ltd. [Member]
USD ($)
Note 14 - License Agreements (Details) [Line Items]                                                    
Upfront Payment Related to Licensing Agreement                                               $ 3.0    
Revenue Recognition, Milestone Method, Revenue Recognized                                                 5.0 5.0
Non Refundable Milestone Payments Entitled to Receive   7.0 5.0     12.0     7.0 7.0 7.0 21.0     7.0 7.0 7.0 21.0 5.0 8.0 13.0       67.0  
Percentage of Royalty Payable under Agreement                                           20.00% 29.00%      
Payments under License Agreements (in Dollars)             1.3           3.6                          
Percentage Of Consideration In Cash       10.00% 19.00%                                          
Percentage of Consideration in Cash Reduced             25.00%                                      
Milestone Payments 0.1             0.1           0.1                        
Accrued Royalties                                                   0.4
License Costs $ 0.6