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Note 15 - Fair Value Measurements
12 Months Ended
Dec. 31, 2020
Notes to Financial Statements  
Fair Value Disclosures [Text Block]
15.
     FAIR VALUE MEASUREMENTS
 
We apply authoritative accounting guidance for fair value measurements of financial and non-financial assets and liabilities. This guidance defines fair value, establishes a consistent framework for measuring fair value and expands disclosure for each major asset and liability category measured at fair value on either a recurring or nonrecurring basis and clarifies that fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, the standard establishes a
three
-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:
 
 
Level
1
– Observable inputs to the valuation methodology such as quoted prices in active markets for identical assets or liabilities
 
 
Level
2
– Inputs to the valuation methodology including quoted prices for similar assets or liabilities in active markets, quoted prices for identical assets or liabilities in inactive markets, inputs other than quoted prices that are observable for the asset or liability, and inputs that are derived principally from or corroborated by observable market data by correlation or other means
 
 
Level
3
– Significant unobservable inputs in which there is little or
no
market data, which require the reporting entity to develop its own estimates and assumptions or those expected to be used by market participants. Generally, these fair value measures are model-based valuation techniques such as discounted cash flows, option pricing models, and other commonly used valuation techniques
 
Transfers between levels of the fair value hierarchy are recognized based on the actual date of the event or change in circumstances that caused the transfer. We had
no
assets or liabilities that were valued using level
2
or level
3
inputs and therefore there were
no
transfers between levels of the fair value hierarchy during the periods ended
December 31, 2020
and
2019
.