Note 12 - Accounts Payable, Accrued Liabilities and Other (Details Textual) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Disposal Group, Including Discontinued Operation, Accounts Payable, Current		$ 1,957,938
Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current	7,092	607,659
Accounts Payable [Member] \| Director Fees and Scientific Advisory Board Fees [Member]
Due to Related Parties, Current	0	116,000
Accrued Liabilities and Other [Member] \| Executive Bonuses, Director Fees, Deferred Salary, and Scientific Advisory Board Fees [Member]
Due to Related Parties, Current	$ 52,000	$ 106,000