Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements

v3.23.2
Fair Value Measurements
 6 Months Ended
Jun. 30, 2023
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
    The fair value topic of the FASB Accounting Standards Codification defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The accounting guidance also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs, where available, and minimize the use of unobservable inputs when measuring fair value. There are three levels of inputs that may be used to measure fair value:
 Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities. We currently do not have any Level 1 financial assets or liabilities.
 Level 2 - Observable inputs other than quoted prices included in Level 1. Level 2 inputs include quoted prices for identical assets or liabilities in non-active markets, quoted prices for similar assets or liabilities in active markets and inputs other than quoted prices that are observable for substantially the full term of the asset or liability. We have Level 2 financial assets and liabilities as provided below.
 Level 3 - Unobservable inputs reflecting management’s own assumptions about the input used in pricing the asset or liability. We do not currently have any Level 3 financial assets or liabilities.
    The following tables present the asset reported in "other assets" in the consolidated balance sheet measured at its fair value on a recurring basis as of June 30, 2023 and 2022 by level within the fair value hierarchy.
June 30, 2023 Quoted prices in active markets for identical assets Significant other observable inputs Significant unobservable inputs Unrealized
Description Total Level 1 Level 2 Level 3  Gains
Recurring fair value measurements
    Marketable equity securities
          EuroSite Power Inc. $ 131,241  $ —  $ 131,241  $ —  $ 37,497 
Total recurring fair value measurements $ 131,241  $ —  $ 131,241  $ —  $ 37,497 
June 30, 2022 Quoted prices in active markets for identical assets Significant other observable inputs Significant unobservable inputs Unrealized
Description Total Level 1 Level 2 Level 3 Gains
Recurring fair value measurements
Marketable equity securities
EuroSite Power Inc. $ 112,492  $ —  $ 112,492  $ —  $ 37,497 
Total recurring fair value measurements $ 112,492  $ —  $ 112,492  $ —  $ 37,497 
      
    We utilize a Level 2 category fair value measurement to value our investment in EuroSite Power, Inc. as a marketable equity security at period end. That measurement is equal to the quoted market closing price at period end. Since this security is not actively traded we classify it as Level 2.
    The following table summarizes changes in Level 2 assets which are comprised of marketable equity securities for the six months ended June 30, 2023 and 2022:


Fair value at December 31, 2022 $ 93,744 
Unrealized gains 37,497 
Fair value at June 30, 2023 $ 131,241 
Fair value at December 31, 2021 $ 74,995 
Unrealized gains 37,497 
Fair value at June 30, 2022 $ 112,492