The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents. As of December 31, 2020 and 2019, cash equivalents consisted of money market funds.

The Company’s cash is held on deposit in demand accounts at a large financial institution in amounts in excess of the Federal Deposit Insurance Corporation, or FDIC, insurance coverage limit of $250,000 per depositor, per FDIC-insured bank, per ownership category. Management has reviewed the financial statements of this institution and believes it has sufficient assets and liquidity to conduct its operations in the ordinary course of business with little or no credit risk to the Company.

Financial instruments that potentially subject the Company to concentrations of credit risk principally consist of cash equivalents and accounts receivable. The Company limits its credit risk associated with cash equivalents by placing investments in highly-rated money market funds. The Company limits its credit risk with respect to accounts receivable by performing credit evaluations when deemed necessary, but it does not require collateral to secure amounts owed by its customers.

The Company maintains allowances for doubtful accounts for estimated losses resulting from amounts deemed to be uncollectible from its customers. These allowances are for specific amounts on certain customer accounts based on facts and circumstances determined on a case-by-case basis.

As of January 1, 2019, the Company accounts for leases in accordance with ASC Topic 842, Leases, (“Topic 842”). The Company determines if an arrangement is a lease at contract inception. A lease exists when a contract conveys to the customer the right to control the use of identified property, plant, or equipment for a period of time in exchange for consideration. The definition of a lease embodies two conditions: (1) there is an identified asset in the contract that is land or a depreciable asset (i.e., property, plant, and equipment), and (2) the customer has the right to control the use of the identified asset.

The Company leases warehouse and office space, and office equipment pursuant to net operating leases. Operating leases where the Company is the lessor are included in revenue on the Statements of Operations.

From time to time the Company enters into sales-type lease arrangements that include a lessee obligation to purchase the leased equipment at the end of the lease term, automatic transfer of ownership of the leased equipment at the end of the lease, a lessee purchase option reasonably certain to be exercised, or provides for minimum lease payments with a present value equal to or exceeding substantially all of the fair value of the underlying leased equipment at the date of lease inception. Sales-type leases where the Company is the lessor are included in revenue on the Statements of Operations.

Operating leases where the Company is the lessee are included in operating lease right-of-use assets and operating lease liabilities on the Balance Sheets. The lease liabilities are initially measured at the present value of the unpaid lease payments at the lease commencement date.

The Company uses the following inputs in its lease calculations under Topic 842: (1) the discount rate the Company uses to discount the unpaid lease payments to present value, (2) lease term, and (3) lease payments.

For operating leases where the Company is the lessor, the Company continues recognizing the underlying asset and depreciating it over its estimated useful life. Lease income from lessees is recognized on a straight-line basis over the terms of the relevant lease agreement in revenue. Operating leases for equipment with fixed rentals and step rentals are recognized on a straight-line basis over the term of the lease, assuming no renewals, in revenue. Revenue is not recognized when collection is not reasonably assured. When collectability is not reasonably assured, the customer is placed on non-accrual status and revenue is recognized when cash payments are received.

The lease asset for sales-type leases is initially measured as the total net investment in the lease, which comprises the initial amount of the lease receivable plus the deferred initial direct costs.

The lease asset for sales-type leases is subsequently measured throughout the lease term at the carrying amount of the net investment in the lease which is increased by interest income and reduced by lease payments collected. The lease payments are segregated into principal and interest components similar to a loan. Equipment leasing revenues are recognized on an effective interest method over the lease term. The principal component of the lease payment is reflected as a reduction to the net investment in the lease.

For operating leases where the Company is the lessee, the right-of-use, or ROU, asset is initially measured at cost, which comprises the initial amount of the lease liability adjusted for lease payments made at or before the lease commencement date, plus any initial direct costs incurred less any lease incentives received. The ROU asset is subsequently measured throughout the lease term at the carrying amount of the lease liability, plus initial direct costs, plus (minus) any prepaid (accrued) lease payments, less the unamortized balance of lease incentives received. Lease expense for lease payments is recognized on a straight-line basis over the lease term.

Lease assets for sales-type leases where the Company is the lessor and ROU assets for operating leases where the Company is the lessee are periodically reduced by impairment losses. The Company uses the loans impairment guidance in ASC Subtopic 330-10, Receivables, and the long-lived assets impairment guidance in ASC Subtopic 360-10, Property, Plant, and Equipment – Overall, to determine whether a lease asset or a ROU asset, respectively, is impaired, and if so, the amount of the impairment loss to recognize. For the years ended December 31, 2020 and 2019, the Company has not encountered any impairment losses.

The Company monitors for events or changes in circumstances that require a reassessment of a lease. When a reassessment results in the remeasurement of a lease liability, a corresponding adjustment is made to the carrying amount of the corresponding ROU asset unless doing so would reduce the carrying amount of the ROU asset to an amount less than zero. In that case, the amount of the adjustment that would result in a negative ROU asset balance is recorded in profit or loss.

The Company has elected not to recognize ROU assets and lease liabilities for all short-term leases that have a lease term of 12 months or less. The Company recognizes the lease payments associated with the short-term leases as an expense on a straight-line basis over the lease term. Variable lease payments associated with these leases are recognized and presented in the same manner as for all other leases. The Company has elected to exclude sales and other similar taxes from lease payments in arrangements where the Company is a lessor.

The Company adopted ASU 2016-02 using a modified retrospective transition approach as of the effective date as permitted by the amendments in ASU 2018-11, which provides an alternative modified retrospective transition method. As a result, the Company was not required to adjust comparative period financial information for effects of the standard or make the new required lease disclosures for periods before the date of adoption (i.e. January 1, 2019). The Company has elected to adopt the package of transition practical expedients and, therefore, has not reassessed (1) whether existing or expired contracts contain a lease, (2) lease classification for existing or expired leases or (3) the accounting for initial direct costs that were previously capitalized. The Company did not elect the practical expedient to use hindsight for leases existing at the adoption date. There was no effect of the adoption of Topic 842 on retained earnings and other components of equity as of December 31, 2018.

Inventory is stated at the lower of cost and net realizable value, with cost being determined on a first in, first out basis. The Company’s inventory is primarily comprised of finished goods.

Property and equipment are recorded at cost. Maintenance and repairs are charged to expense as incurred and costs of improvements and renewals are capitalized. Depreciation and amortization are recognized using the straight-line method based on the estimated useful lives of the related assets. The Company uses an estimated useful life of three years for computers and software, five years for laboratory and office equipment, six years for devices in the rental agreement program and the lesser of five years or the remaining life of the underlying facility lease for leasehold improvements.

Software development costs relating to assets to be sold in the normal course of business are included in research and development and are expensed as incurred until technological feasibility is established. After technological feasibility is established, material software development costs are capitalized. The Company uses an estimated useful life of two years for capitalized software and amortizes these costs beginning at the product release.

Long-lived assets, such as property and equipment, are tested for impairment when events or changes in circumstances indicate that the carrying value of the asset may not be recoverable. Impairment testing requires management to estimate the future net undiscounted cash flows of an asset using assumptions believed to be reasonable. Actual cash flows may differ from the estimates used in the impairment testing. If such assets are considered to be impaired, the Company recognizes an impairment loss when and to the extent that the estimated fair value of an asset is less than its carrying value. The Company has not recorded any impairment of its long-lived assets for the years ended December 31, 2020, 2019, and 2018.

The Company capitalizes direct costs incurred to obtain debt financing and amortizes these costs to interest expense over the term of the debt using the effective interest method. These costs are recorded as a debt discount and are netted against the related debt on the Company’s balance sheet.

On January 1, 2019, the Company adopted Topic 606 using the modified retrospective method applying the open contract practical expedient and accounted for those contracts which were not completed as of January 1, 2019 under Topic 606. Results for reporting periods beginning after January 1, 2019 are presented under Topic 606, while prior period amounts are not adjusted and continue to be reported in accordance with the Company’s historic accounting under Topic 605.

The adoption of ASC 606 had no impact to retained earnings or revenue as of January 1, 2019.

In accordance with the new revenue standard requirements, the disclosure of the impact of adoption on prepaid commissions expense on the balance sheet as of December 31, 2019 and the statement of operation for the year ended December 31, 2019 is as follows:

	As of December 31, 2019
	As Reported			Balance Without Adoption of ASC 606			Effect of Change Higher/(Lower)
Balance Sheet
Current portion of prepaid commission expense	$	689		$	-		$	689
Prepaid commission expense		3,779			-			3,779

	Year ended December 31, 2019
	As Reported			Balance Without Adoption of ASC 606			Effect of Change Higher/(Lower)
Income Statement
Sales and marketing	$	42,993		$	47,461		$	(4,468	)
Net loss		(29,044	)		(33,512	)		4,468

Topic 606 is principles-based and provides a five-step model to determine when and how revenue is recognized. The core principle is that an entity should recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.

Sales and usage-based taxes are excluded from revenues. Other than the revenue recognized under the distribution agreement disclosed below, all but an immaterial amount of the Company’s revenue is recognized at a point in time.

The Company accounts for a contract with a customer when there is a legally enforceable contract between the Company and the customer, the rights of the parties are identified, the contract has commercial substance, and collectability of the contract consideration is probable. For all sales, the Company uses either a signed agreement or a binding purchase order as evidence of an arrangement.

The unit of account for Topic 606 is the performance obligation. A performance obligation is a promise in a contract to transfer a distinct good or service to the customer or a series of distinct goods or services that are substantially the same and have the same pattern of transfer. A contract’s transaction price is allocated to each performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. The majority of the Company’s contracts are comprised of the following performance obligations:

In addition, the Company has determined that there are various perfunctory deliverables such as installation of the System, the technical support hotline and marketing materials which the Company does not separately recognize as revenue nor does the Company accrue the estimated cost of providing these goods and services because they are not material. The Company provides a two-year warranty on all new System sales which were determined to be assurance-type warranties and thus not considered a separate performance obligation. The Company accrues the cost of providing these warranties.

There is no right of return or refund for any of the Company’s products or services and the Company has elected to treat shipping and handling as a fulfillment activity and expenses the costs as incurred.

The System is typically purchased but the Company does offer certain customers the option to lease instead. The Company accounts for these leases under Topic 842, Leases. Under Topic 842 the leases are typically accounted for as a sales-type lease which results in the derecognition of the underlying asset, the recognition of profit or loss on the sale, and the recognition of an investment in sales-type lease. The investment is periodically increased for interest earned and reduced as lease payments are received.

The Company has an exclusive distribution agreement that began in October 2017 with a foreign entity for a period of 7 ½ years with two 2 year renewal options. As consideration for the right to be the sole distributor of the Company’s products and use of the Company’s intellectual property in the foreign territory, the distributor is required to make certain fixed milestone payments upon contract execution and regulatory approval. In addition, the distributor is required to make variable milestone payments depending upon regulatory reimbursement rates. Furthermore, the distributor is required to make certain minimum purchases based upon sales history and forecasts subject to a ceiling and floor. The Company assessed the potential performance obligations in this contract and concluded that the contract contained the following performance obligations:

The distribution agreement contains pricing for the Company’s products and services. The contractual purchase prices were determined to be at the standalone selling prices based on the expected sales volumes of this customer type and thus the Company concluded that this agreement did not contain a separate performance obligation for the material right to discounted Systems and Treatments Sessions. The Company allocated the transaction price through a combination of the cost plus a margin approach and the residual method. For the System and Treatment Sessions the Company maximized the use of observable inputs by beginning with average historical contractual selling prices and adjusting on a consistent and rational basis for pricing trends, the customer type and expected sales volumes and the Company’s changing cost and margins. Since it was determined that the contractual selling prices for the Company’s products and services in the distribution agreement were at the standalone selling prices, the residual consideration which is made up of the fixed and variable milestone payments was allocated to the exclusive distribution and intellectual property license. The exclusive distribution and intellectual property rights were determined to be symbolic IP and thus recognized over time. The System and Treatment Sessions were determined to be performance obligations recognized at a point in time when delivered to the distributor.

Accounting for the Company’s contracts involves the use of significant judgments and estimates including determining the separate performance obligations, allocating the transaction price to the different performance obligations and determining the method to measure the entity’s performance toward satisfaction of performance obligations that most faithfully depicts when control is transferred to the customer. The Company allocates the contract’s transaction price to each performance obligation using the Company’s best estimate of the standalone selling price for each distinct good or service in the contract. The Company maximizes the use of observable inputs by beginning with average historical contractual selling prices and adjusting as necessary and on a consistent and rational basis for other inputs such as pricing trends, customer types, volumes and changing cost and margins.

Payment terms typically require payment upon shipment of the System and additional payments as access codes are delivered, which can span several years after the System is first delivered and installed. The timing of revenue recognition compared to billings and cash collections typically results in accounts receivable. However, sometimes customer advances and deposits might be required for certain customers and are recorded as contract liabilities. Changes in the contract asset and liability balances during the years ended December 31, 2020 and 2019 were not materially impacted by any other factors.

As of December 31, 2020, the Company expects to recognize approximately the following percentages of deferred revenue by year:

Year:	Revenue Recognition
2021		49	%
2022		15	%
2023		16	%
2024		16	%
2025		4	%
Thereafter	-
Total		100	%

Revenue recognized for the years ended December 31, 2020 and 2019 that was included in the contract liability balance at the beginning of the year was $2.0 million and $2.2 million, respectively, and primarily represented revenue earned from separately priced extended warranties, rent-to-own revenue, milestone revenue, and clinical training.

One customer accounted for more than 10% of our revenues for the year ended December 31, 2020 and no customer accounted for more than 10% of our revenues for the year ended December 31, 2019.

Research and development activities are expensed as incurred. Costs incurred in obtaining technology licenses are charged immediately to research and development expense if the technology licensed has not reached technological feasibility and has no alternative future uses.

The Company recognizes the grant-date fair value of share-based awards issued as compensation as expense on a straight-line basis over the requisite service period, which is generally the vesting period of the award. The fair value of restricted stock awards and restricted stock units is estimated at the time of grant, based on the grant date fair value of the Company’s common stock. The fair value of stock options is estimated at the time of grant using the Black-Scholes option pricing model, which requires the use of inputs and assumptions such as the fair value of the underlying common stock, exercise price of the option, expected term, risk-free interest rate, expected volatility and dividend yield, the most critical of which is the fair value of the Company’s common stock prior to the IPO.

The fair value of each grant of stock options awarded during the years ended December 31, 2020, 2019, and 2018 was determined using the following methods and assumptions:

The inputs and assumptions used to estimate the fair value of share-based payment awards represent management’s best estimates and involve inherent uncertainties and the application of management’s judgment. As a result, if factors change and management uses different inputs and assumptions, the Company’s share-based compensation expense could be materially different for future awards.

Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in operations in the period that includes the enactment date. A valuation allowance is recorded to the extent it is more likely than not that some portion or all of the deferred tax assets will not be realized.

Unrecognized income tax benefits represent income tax positions taken on income tax returns that have not been recognized in the financial statements. The Company recognizes the benefit of an income tax position only if it is more likely than not (greater than 50%) that the tax position will be sustained upon tax examination, based solely on the technical merits of the tax position. Otherwise, no benefit is recognized. The tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. The Company accrues interest and related penalties are classified as income tax expense in the statements of operations. The Company does not anticipate significant changes in the amount of unrecognized income tax benefits over the next year.