Note 3 - Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($) |
Sep. 30, 2019 |
Dec. 31, 2018 |
---|---|---|
Fair value of liabilities | $ 166,938 | $ 583,734 |
Stock Purchase Warrants [Member] | ||
Liability classified stock purchase warrants | 166,938 | 583,734 |
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 | 166,938 | 583,734 |
Fair Value, Inputs, Level 3 [Member] | Stock Purchase Warrants [Member] | ||
Liability classified stock purchase warrants | $ 166,938 | $ 583,734 |
X | ||||||||||
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
X | ||||||||||
- Definition Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities. No definition available.
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|