Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 30, 2025	Apr. 30, 2024
Current assets:
Cash and cash equivalents	$ 6,715	$ 3,151
Accounts receivable, net	1,191	796
Contract assets	1,088	18
Inventory	4,222	4,831
Other current assets	400	1,747
Total current assets	13,616	10,543
Property and equipment, net	3,444	3,443
Intangibles, net	3,490	3,622
Right-of-use assets, net	1,552	2,405
Restricted cash, long-term	154	154
Goodwill	8,537	8,537
Total assets	30,793	28,704
Current liabilities:
Accounts payable	568	3,366
Earn out payable	300	1,130
Accrued expenses	1,271	1,787
Contract liabilities		302
Right-of-use liabilities, current portion	1,150	774
Total current liabilities	3,289	7,359
Deferred tax liability	203	203
Right-of-use liabilities, less current portion	649	1,798
Total liabilities	4,141	9,360
Commitments and contingencies (Note 14)
Shareholders’ Equity:
Preferred stock, $0.001 par value; authorized 5,000,000 shares, none issued or outstanding
Common stock, $0.001 par value; authorized 300,000,000 and 100,000,000 shares, issued 172,050,563 and 61,352,731 shares, respectively, and outstanding 171,263,086 and 61,264,714 shares, respectively	172	61
Treasury stock, at cost; 787,477 and 88,017 shares, respectively	(1,018)	(369)
Additional paid-in capital	356,588	327,276
Accumulated deficit	(329,090)	(307,579)
Accumulated other comprehensive loss		(45)
Total shareholders’ equity	26,652	19,344
Total liabilities and shareholders’ equity	$ 30,793	$ 28,704

Earn out payable current.

No definition available.

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Namespace Prefix:	OPTT_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).