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v3.23.2

Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Apr. 30, 2023 | Apr. 30, 2022
Cash flows from operating activities: |  |
Net loss | $ (26,326,000) | $ (18,874,000)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Foreign exchange (gain) / loss | (1,000) | 1,000
Depreciation of fixed assets | 183,000 | 144,000
Amortization of intangibles | 158,000 | 86,000
Amortization of right-of-use assets | 296,000 | 285,000
Amortization of premium on investments | 113,000 | 58,000
Change in contingent consideration liability | 1,112,000 | (60,000)
Gain on forgiveness of PPP loan |  | (890,000)
Loss on liquidation of subsidiary |  | 157,000
Compensation expense related to equity compensation | 1,461,000 | 1,169,000
Deferred tax liabilities |  | (377,000)
Changes in operating assets and liabilities, net of acquisitions: |  |
Accounts receivable | (262,000) | (133,000)
Contract assets | 234,000 | (195,000)
Inventory | (602,000) | (292,000)
Other assets | (527,000) | 19,000
Accounts payable | 47,000 | 217,000
Accrued expenses | 1,469,000 | (1,004,000)
Litigation payable |  | (1,224,000)
Change in right of use lease liabilities | (311,000) | (309,000)
Contract liabilities | 1,249,000 | (74,000)
Net cash used in operating activities | (21,707,000) | (21,296,000)
Cash flows from investing activities: |  |
Redemptions of short term investments | 64,923,000 |
Purchases of short term investments | (43,442,000) | (49,442,000)
Purchases of property, plant, and equipment | (648,000) | (145,000)
Leased WAM-Vs built and capitalized | (371,000) |
Payment for MAR acquisition, net of cash acquired |  | (4,444,000)
Net cash (used in) provided by investing activities | 20,462,000 | (54,031,000)
Cash flows from financing activities: |  |
Proceeds from stock option exercises |  | 90,000
Cash paid for tax withholding related to shares withheld | (14,000) | (3,000)
Net cash (used in)/provided by financing activities | (14,000) | 87,000
Effect of exchange rate changes on cash, cash equivalents and restricted cash |  | (32,000)
Net decrease in cash, cash equivalents and restricted cash | (1,259,000) | (75,272,000)
Cash, cash equivalents and restricted cash, beginning of year | 8,362,000 | 83,634,000
Cash, cash equivalents and restricted cash, end of year | 7,103,000 | 8,362,000
Supplemental disclosure of noncash investing and financing activities: |  |
Issuance of stock for acquisition |  | 5,855,000
Operating right of use asset obtained in exchange for operating lease liability | 1,296,000 |
Contingent liability - MAR |  | $ 1,591,000

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