Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)

v3.10.0.1
Note 3 - Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Measurements, Recurring [Member] - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Fair value of liabilities $ 2,047,563 $ 3,852,882
Stock Purchase Warrants [Member]    
Liability classified stock purchase warrants 2,047,563 3,852,882
Fair Value, Inputs, Level 1 [Member]    
Fair value of liabilities
Fair Value, Inputs, Level 1 [Member] | Stock Purchase Warrants [Member]    
Liability classified stock purchase warrants
Fair Value, Inputs, Level 2 [Member]    
Fair value of liabilities
Fair Value, Inputs, Level 2 [Member] | Stock Purchase Warrants [Member]    
Liability classified stock purchase warrants
Fair Value, Inputs, Level 3 [Member]    
Fair value of liabilities 2,047,563 3,852,882
Fair Value, Inputs, Level 3 [Member] | Stock Purchase Warrants [Member]    
Liability classified stock purchase warrants $ 2,047,563 $ 3,852,882