Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Accounts Payable, Accrued Liabilities and Other (Details Textual)

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Note 9 - Accounts Payable, Accrued Liabilities and Other (Details Textual) - USD ($)
Jun. 30, 2017
Dec. 31, 2016
Accounts Payable, Portion Under Dispute $ 210,000  
Accounts Payable [Member] | Director Fees and Scientific Advisory Board Fees [Member]    
Due to Related Parties, Current 1,000 $ 116,000
Accrued Liabilities and Other [Member] | Executive Bonuses, Director Fees, Deferred Salary, and Scientific Advisory Board Fees [Member]    
Due to Related Parties, Current $ 64,000 $ 106,000