Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Tables)

v3.23.1
Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2023
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis The following tables presents the asset reported in "other assets" in the consolidated balance sheet measured at its fair value on a recurring basis as of March 31, 2023 and 2022 by level within the fair value hierarchy.
March 31, 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. $ 93,744  $ —  $ 93,744  $ —  $ — 
Total recurring fair value measurements $ 93,744  $ —  $ 93,744  $ —  $ — 
March 31, 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 
Schedule of Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings The following table summarizes changes in Level 2 assets which are comprised of marketable equity securities for the three months ended March 31, 2023 and 2022:
Fair value at December 31, 2022 $ 93,744 
Unrealized gains — 
Fair value at March 31, 2023 $ 93,744 
Fair value at December 31, 2021 $ 74,995 
Unrealized gains 37,497 
Fair value at March 31, 2022 $ 112,492