Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments

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Fair Value of Financial Instruments
 3 Months Ended
Mar. 31, 2021
Fair Value Disclosures [Abstract]  
Fair Value of Financial Instruments FAIR VALUE OF FINANCIAL INSTRUMENTS
Financial Instruments Measured on a Recurring Basis

The carrying amounts for certain of our financial instruments, including cash, accounts receivable, accounts payable and certain accrued expenses and other assets and liabilities, approximate fair value due to the short-term nature of these instruments. Our financial instruments measured at fair value on a recurring basis were as follows at the dates indicated:
Condensed Consolidated
Balance Sheet Caption
Fair Value at March 31, 2021
(in thousands) Level 1 Level 2 Level 3 Total
Liabilities:
Interest rate swap contract Other long-term liabilities $ —  $ 460  $ —  $ 460 
Contingent consideration - current Accrued expenses and other current liabilities —  —  853  853 
Contingent consideration - long-term Other long-term liabilities —  —  365  365 
Total Liabilities $ —  $ 460  $ 1,218  $ 1,678 

Condensed Consolidated
Balance Sheet Caption		 Fair Value at December 31, 2020
(in thousands) Level 1 Level 2 Level 3 Total
Liabilities:
Interest rate swap contract Other long-term liabilities $ —  $ 665  $ —  $ 665 
Total Liabilities $ —  $ 665  $ —  $ 665 

There were no transfers between Level 1 and Level 2 and no transfers to or from Level 3 of the fair value hierarchy during the three months ended March 31, 2021.
Derivative Instrument and Hedging Activity
On July 11, 2019, we entered into an interest rate swap contract to manage our risk associated with the interest rate fluctuations on our floating rate Real Estate Note. The counterparty to this instrument is a reputable financial institution. The interest rate swap contract is entered into for periods consistent with the related underlying exposure and does not constitute a position independent of this exposure. Our interest rate swap contract was designated as a cash flow hedge at the inception date, and is reflected at its fair value in our condensed consolidated balance sheets. The fair value of our interest rate swap liability is determined based on the present value of expected future cash flows. Since our interest rate swap value is based on the LIBOR forward curve and credit default swap rates, which are observable at commonly quoted intervals for the full term of the swap, it is considered a Level 2 measurement.

Details of the outstanding swap contract as of March 31, 2021, which is a "pay-fixed and receive-floating" contract, are as follows:
Swap Maturity Notional Value
(in thousands)		 Pay-Fixed Rate Receive-Floating Rate Floating Rate
Reset Terms
October 1, 2025 $ 8,078  2.07750  % One-Month LIBOR Monthly

We performed an initial qualitative assessment of hedge effectiveness using the hypothetical derivative method in the period in which the hedging transaction was entered, as the critical terms of the hypothetical derivative and the hedging instrument were the same. Quarterly, we perform a qualitative analysis for prospective and retrospective assessments of hedge effectiveness. The unrealized loss on the derivative instrument is included within "Other comprehensive loss" in our condensed consolidated statements of operations and comprehensive loss. There was no measure of hedge ineffectiveness and no reclassifications from other comprehensive loss into interest expense for the three months ended March 31, 2021 or 2020.

Contingent Consideration

Each period we revalue our contingent consideration obligations associated with business acquisitions to their fair value. Additional purchase price payments ranging from $0 to $3.5 million are contingent upon the achievement of certain revenue and EBITDA targets measured through December 31, 2022. The estimate of the fair value of contingent consideration is determined by applying a risk-neutral framework using a Monte Carlo Simulation, which includes inputs not observable in the market, such as the risk-free rate, risk-adjusted discount rate, the volatility of the underlying financial metrics and projected financial forecast of the acquired business over the earn-out period, and therefore represents a Level 3 measurement. Significant increases or decreases in these inputs could result in a significantly lower or higher fair value measurement of the contingent consideration liability. Changes in the fair value of contingent consideration are included within "Other income (expense), net" in our condensed consolidated statements of operations and comprehensive loss. There were no fair value adjustments to contingent consideration recognized during the three months ended March 31, 2021.

A reconciliation of our liabilities that are measured and recorded at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended March 31, 2021 is as follows:
(in thousands) Contingent Consideration
Balance at December 31, 2020 $ — 
Contingent consideration issued in March 2021 1,218 
Balance at March 31, 2021 $ 1,218 

Investment in Equity Securities

Our investment in equity securities consists of a 1.49% ownership interest in Airgraft Inc. We determined that our ownership does not provide us with significant influence over the operations of this investee. Accordingly, we account for our investment in this entity as equity securities. Airgraft Inc. is a private entity and its equity securities do not have a readily determinable fair value. We elected to measure this security under the measurement alternative election at cost minus impairment, if any, and adjust the security to fair value when an observable price change can be identified; thus, the investment in equity securities constitutes a Level 3 investment, measured on a non-recurring basis. There have been no transfers between Level 1 and Level 2 and no transfers to or from Level 3 of the fair value hierarchy during the three months ended March 31, 2021 or 2020.

During the three months ended March 31, 2021 and 2020, we did not identify any fair value adjustments using observable price changes in orderly transactions for an identical or similar investment of the same issuer. At March 31, 2021 and December 31, 2020, the carrying value of this investment was approximately $2.0 million, which included a fair value adjustment of $1.5 million based on an observable price change recognized during the year ended December 31, 2019.