Revenue Recognition

Revenue recognized from services provided under our customer contracts are disaggregated into manufacturing and process development revenue streams.

Manufacturing revenue

Manufacturing revenue generally represents revenue from the manufacturing of customer products recognized over time utilizing an input method that compares the cost of cumulative work-in-process to date to the most current estimates for the entire cost of the performance obligation. Under a manufacturing contract, a quantity of manufacturing runs are ordered and the product is manufactured according to the customer’s specifications and typically only one performance obligation is included. Each manufacturing run represents a distinct service that is sold separately and has stand-alone value to the customer. The products are manufactured exclusively for a specific customer and have no alternative use. The customer retains control of its product during the entire manufacturing process and can make changes to the process or specifications at its request. Under these agreements, we are entitled to consideration for progress to date that includes an element of profit margin.

Process development revenue

Process development revenue generally represents revenue from services associated with the custom development of a manufacturing process and analytical methods for a customer’s product. Process development revenue is recognized over time utilizing an input method that compares the cost of cumulative work-in-process to date to the most current estimates for the entire cost of the performance obligation. Under a process development contract, the customer owns the product details and process, which has no alternative use. These process development projects are customized to each customer to meet its specifications and typically only one performance obligation is included. Each process represents a distinct service that is sold separately and has stand-alone value to the customer. The customer also retains control of its product as the product is being created or enhanced by our services and can make changes to its process or specifications upon request. Under these agreements, we are entitled to consideration for progress to date that includes an element of profit margin.

The following table summarizes our manufacturing and process development revenue streams (in thousands):

	Three Months Ended January 31,				Nine Months Ended January 31,
	2021		2020		2021		2020
Manufacturing revenues	$	17,895	$	11,525	$	60,407	$	40,422
Process development revenues		3,911		2,060		7,855		6,730
Total revenues	$	21,806	$	13,585	$	68,262	$	47,152

The timing of revenue recognition, billings and cash collections results in billed trade receivables, contract assets (unbilled receivables), and contract liabilities (customer deposits and deferred revenue). Contract assets are recorded when our right to consideration is conditioned on something other than the passage of time. Contract assets are reclassified to accounts receivable on the balance sheet when our rights become unconditional. Contract liabilities represent customer deposits and deferred revenue billed and/or received in advance of our fulfillment of performance obligations. Contract liabilities convert to revenue as we perform our obligations under the contract.

During the three and nine months ended January 31, 2021, we recognized revenue of $3.5 million and $26.3 million, respectively, for which the contract liability was recorded in a prior period.

During the three and nine months ended January 31, 2020, we recognized revenue of $0.6 million and $13.2 million, respectively, for which the contract liability was recorded in a prior period.

The transaction price for services provided under our customer contracts reflects our best estimates of the amount of consideration to which we are entitled in exchange for providing goods and services to our customers. In determining the transaction price, we considered the different sources of variable consideration including, but not limited to, discounts, credits, refunds, price concessions or other similar items. We have included in the transaction price some or all of an amount of variable consideration, utilizing the most likely method, only to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. The actual amount of consideration ultimately received may differ.

Management may be required to exercise judgement in estimating revenue to be recognized. Judgement is required in identifying performance obligations, estimating the transaction price, estimating the stand-alone selling prices of identified performance obligations, and estimating the progress towards the satisfaction of performance obligations. If actual results in the future vary from our estimates, the estimates will be adjusted, which will affect revenues in the period that such variances become known.

During the nine months ended January 31, 2021, changes in estimates for variable consideration related to the completion of certain performance obligations during the current year periods resulted in an increase in revenues of $1.1 million. There were no material adjustments in estimates for variable consideration for the three months ended January 31, 2021 and for the three and nine months ended January 31, 2020.

We apply the practical expedient available under ASC 606 that permits us not to disclose the value of unsatisfied performance obligations for contracts with an original expected length of one year or less. As of January 31, 2021, we do not have any unsatisfied performance obligations for contracts greater than one year.

Leases

Leases

We determine if an arrangement is or contains a lease at inception. Our operating leases with a term greater than one year are included in operating lease right-of-use assets, operating lease liabilities and operating lease liabilities, less current portion in our condensed consolidated balance sheets. Right-of-use assets represent our right to use an underlying asset during the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease right-of-use assets and liabilities are recognized at the lease commencement date, based on the present value of lease payments over the lease term. In determining the net present value of lease payments, we use our incremental borrowing rate which represents an estimated rate of interest that we would have to pay to borrow equivalent funds on a collateralized basis at the lease commencement date.

Our operating leases may include options to extend the lease which are included in the lease term when it is reasonably certain that we will exercise a renewal option. Operating lease expense is recognized on a straight-line basis over the expected lease term.

We elected the post-transition practical expedient to not separate lease components from non-lease components for all existing leases. We also elected a policy to not apply the recognition requirements of ASC 842 for short-term leases.

Property and Equipment

Property and Equipment

Property and equipment is recorded at cost, less accumulated depreciation and amortization. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the related assets, which are generally as follows:

Description		Estimated Useful Life
Leasehold improvements		Shorter of estimated useful life or lease term
Laboratory and manufacturing equipment		5 – 10 years
Furniture, fixtures and office equipment		5 – 10 years
Computer equipment and software		3 – 5 years

Construction-in-progress, which represents direct costs related to the construction of various equipment and leasehold improvements primarily associated with our manufacturing facilities, is not depreciated until the asset is completed and placed into service. No interest was incurred or capitalized as construction-in-progress as of January 31, 2021 and April 30, 2020. All of our property and equipment are located in the U.S. Property and equipment consist of the following (in thousands):

	January 31, 2021			April 30, 2020
Leasehold improvements	$	21,230		$	21,130
Laboratory and manufacturing equipment		16,094			15,033
Computer equipment and software		5,541			5,334
Furniture, fixtures and office equipment		715			685
Construction-in-progress		8,763			2,564
Total property and equipment, gross	$	52,343		$	44,746
Less: accumulated depreciation and amortization		(20,181	)		(17,641	)
Total property and equipment, net	$	32,162		$	27,105

Depreciation and amortization expense for the three and nine months ended January 31, 2021 was $0.9 million and $2.5 million, respectively.

Depreciation and amortization expense for the three and nine months ended January 31, 2020 was $0.8 million and $2.3 million, respectively.

Stock-Based Compensation

Stock-Based Compensation

We account for stock options, restricted stock units and other stock-based awards granted under our equity compensation plans in accordance with the authoritative guidance for stock-based compensation. The estimated fair value of stock options granted to employees in exchange for services is measured at the grant date, using a fair value based method, such as a Black-Scholes option valuation model, and is recognized as expense on a straight-line basis over the requisite service periods. The fair value of restricted stock units is measured at the grant date based on the closing market price of our common stock on the date of grant, and is recognized as expense on a straight-line basis over the period of vesting. Forfeitures are recognized as a reduction of stock-based compensation expense as they occur. As of January 31, 2021 and April 30, 2020, there were no outstanding stock-based awards with market or performance conditions.

Fair Value Measurements

Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The guidance prioritizes the inputs used in measuring fair value into the following hierarchy:

·

Level 1 – Observable inputs, such as unadjusted quoted prices in active markets for identical assets or liabilities.

·

Level 2 – Observable inputs other than quoted prices included in Level 1, such as assets or liabilities whose values are based on quoted market prices in markets where trading occurs infrequently or whose values are based on quoted prices of instruments with similar attributes in active markets.

·

Level 3 – Unobservable inputs that are supported by little or no market activity and significant to the overall fair value measurement of the assets or liabilities; therefore, requiring the company to develop its own valuation techniques and assumptions.

As of January 31, 2021 and April 30, 2020, we do not have any Level 2 or Level 3 financial assets or liabilities and our cash equivalents, which are primarily invested in money market funds with one major commercial bank, are carried at fair value based on quoted market prices for identical securities (Level 1 input).