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Account Receivable and Contract Assets | 9 Months Ended
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Jan. 31, 2022
Account Receivable And Contract Assets |
Account Receivable and Contract Assets | (3) Account Receivable and Contract Assets The following provides further details on the balance sheet accounts of accounts receivable and contract assets from contracts with customers: Schedule of Accounts Receivable, Contract Assets and Contract Liabilities
|  | January 31, 2022 |  |  | April 30, 2021 |
|  | (in thousands) |
Accounts receivable |  | $ | 113 |  |  | $ | 350 |
Contract assets |  |  | 407 |  |  |  | 190 |
Contract liabilities |  |  | 15 |  |  |  | — |
Accounts Receivable The Company grants credit to its customers, generally without collateral, under normal payment terms (typically 30 to 60 days after invoicing). Generally, invoicing occurs after the related services are performed or control of goods have transferred to the customer. Accounts receivable represent an unconditional right to consideration arising from the Company’s performance under contracts with customers. The carrying value of such receivables represents their estimated realizable value. Contract Assets Contract assets include unbilled amounts typically resulting from arrangements whereby the right to payment is conditioned on completing additional tasks or services for a performance obligation. Significant changes in the contract assets balance during the period were as follows: Schedule of Significant Changes in Contract Assets and Contract Liabilities
|  | Nine months ended January 31, 2022 |
|  | (in thousands) |
Transferred to receivables from contract assets recognized at the beginning of the period |  | $ | (190 | )
Revenue recognized and not billed as of the end of the period |  |  | 407 |
Net change in contract assets |  | $ | 217 |

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