on a continuous basis. If the likelihood of a tenant paying its lease payments is determined to no longer be probable, all tenant receivables, including deferred rent, are written off against revenue and any future revenue for that tenant is recognized only upon receipt of cash. In addition, as of June 30, 2023 and December 31, 2022, the Company had a portfolio level reserve of $350 on those leases that were probable of collection to ensure that the tenant lease receivables were not overstated.
Escrow Deposits
The escrow balance as of June 30, 2023 and December 31, 2022 was $9,725 and $7,833, respectively. Escrow deposits include funds held in escrow to be used for the acquisition of properties in the future and for the payment of taxes, insurance, and other amounts as stipulated by the Company’s Cantor Loan, as hereinafter defined. The escrow balance as of June 30, 2023 includes $990 in funds withheld from the proceeds paid to the Company for the sale of a portfolio of four medical office buildings in Oklahoma City, Oklahoma, in June 2023. This amount was withheld in order to fund successful claims by the buyer, if any, against the Company for any post-closing liability of the Company for any breach by the Company of its representations and warranties as set forth in the purchase agreement. The Company does not believe that the buyer will have any successful claims against the Company and therefore believes that the amount held in escrow will be released to the Company in full in December 2023.
Deferred Assets
The deferred assets balance as of June 30, 2023 and December 31, 2022 was $26,189 and $29,616, respectively. The balance as of June 30, 2023 consisted of $25,951 in deferred rent receivables resulting from the recognition of revenue from leases with fixed annual rental escalations on a straight-line basis and $238 of other deferred costs. The balance as of December 31, 2022 consisted of $29,467 in deferred rent receivables resulting from the recognition of revenue from leases with fixed annual rental escalations on a straight-line basis and $149 of other deferred costs.
Other Assets
The other assets balance as of June 30, 2023 and December 31, 2022 was $12,302 and $6,550, respectively. The balance as of June 30, 2023 consisted of $7,980 in right of use assets, $1,686 in capitalized construction in process costs, $1,626 in prepaid assets, $747 in net capitalized leasing commissions, and $263 in net capitalized software costs and miscellaneous assets. The balance as of December 31, 2022 consisted of $3,480 in right of use assets, $1,552 in capitalized construction in process costs, $1,380 in prepaid assets, and $138 in net capitalized software costs and miscellaneous assets. Refer to Note 8 – “Leases” for additional details on right of use assets.
Derivative Instruments - Interest Rate Swaps
As of June 30, 2023 and December 31, 2022, the Company's balance related to interest rate swap derivative instruments that were designated as cash flow hedges of interest rate risk was an asset of $35,864 and $34,705, respectively. In accordance with the Company’s risk management strategy, the purpose of the interest rate swaps is to manage interest rate risk for certain of the Company’s variable-rate debt. The interest rate swaps involve the Company’s receipt of variable-rate amounts from the counterparties in exchange for the Company making fixed-rate payments over the life of the agreements. The Company accounts for derivative instruments in accordance with the provisions of ASC Topic 815, “Derivatives and Hedging.” Refer to Note 4 – “Credit Facility, Notes Payable and Derivative Instruments” for additional details.
Goodwill
As of June 30, 2023 and December 31, 2022, the Company’s goodwill balance was $5,903. Goodwill represents the excess of consideration paid over the fair value of underlying identifiable net assets of businesses acquired. Goodwill has an indefinite life and is not amortized, but is tested for impairment on an annual basis, or more frequently if events or changes in circumstances indicate that the asset might be impaired. The Company’s policy is to perform its annual goodwill impairment evaluation as of the first day of the fourth quarter of its fiscal year. The Company has one reporting unit.
Assets Held for Sale and Sales of Real Estate
The Company classifies a property as held for sale when the following criteria are met: (i) management, having the authority to approve action, commits to a plan to sell the property in its present condition, (ii) the sale of the property is at a price reasonable in