Deferred revenue – For compressor rental revenue, customers are billed monthly in advance of the month for which the unit is rented. Revenues from equipment sales are billed on an agreed upon schedule, with revenue not being considered earned until the unit has been delivered. Payments received in advance of meeting the above revenue recognition criteria are recorded as “Deferred revenue” on the balance sheets.
Contract costs – During 2023 and 2022, the Company recognized an other non-current asset totaling $2,653,582 and $1,188,190, respectively, for the incremental costs of obtaining the contract arising from the sales commissions to employees because the Company expects to recover those costs through future fees for the consulting services. The Company amortizes the asset over one to three years because the asset relates to the services transferred to the customer during the contract term. During the years ended December 31, 2023 and 2022, the Company amortized $1,101,909 and $483,777, respectively, related to sales commissions.
Cash and cash equivalents – We consider all highly-liquid instruments purchased with an original maturity of three months or less to be cash equivalents. We maintain cash in bank deposits with a major financial institution. These accounts, at times, may exceed federally insured limits. Deposits in the United States currently are guaranteed by the Federal Deposit Insurance Corporation up to $250,000. We monitor the financial condition of the financial institution and have not experienced any losses on such accounts.
Concentration of credit risk – Financial instruments that potentially subject the Company to concentration of credit risk consist primarily of cash and cash equivalents and accounts receivable.
Virtually all of our accounts receivable are from customers of varying sizes in the oil and natural gas industry. Two customers accounted for 60% of accounts receivable at December 31, 2023. Three customers accounted for 51% of revenues for the year ended December 31, 2023. Two customers accounted for 57% of accounts receivable at December 31, 2022. Three customers accounted for 52% of revenues for the year ended December 31, 2022. Although diversified among many companies, collectability is dependent on the financial condition of each individual company as well as the general economic conditions of the industry. We review the financial condition of customers prior to extending credit and generally do not require collateral in support of our trade receivables.
Accounts receivable are stated at the historical carrying amount net of an allowance for doubtful accounts. The allowance for doubtful accounts is estimated by considering specific customer collection issues, the aging of accounts receivable, supplementary customer data, and future estimated losses in relation to revenues for the year. Accounts receivable are written off only when management has exhausted all efforts to collect such receivables, including efforts of third-party collection agencies. As of December 31, 2023 and 2022, the Company determined no allowance was deemed necessary. Accounts receivable under revenue contracts was $4,198,444, $4,874,643, and $8,374,076 as of January 1, 2022, December 31, 2022, and December 31, 2023, respectively.
Fair value measurements and financial instruments – Financial instruments include cash and cash equivalents, receivables, payables, and long-term debt. The carrying value of cash and cash equivalents, receivables and payables is considered to be representative of fair value because of their short maturity. The book value of the long-term bank debt approximates fair value because of its floating rate structure.