Sales, Prepaid Manufacturing Costs, Cost of Goods Sold, and Contract Liabilities - Schedule of Cost of Goods Sold (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Schedule of Cost of Goods Sold [Line Items]
Total	$ 1,449	$ 1,971	$ 4,946	$ 4,789
BESS CMA and MSA – cost of sales [Member]
Schedule of Cost of Goods Sold [Line Items]
Total	721	465	1,800	903
Specific services provided to marine scrubber systems [Member]
Schedule of Cost of Goods Sold [Line Items]
Total	484	905	1,576	2,423
Scrubber costs recognized [Member]
Schedule of Cost of Goods Sold [Line Items]
Total	47	161	391	70
Amortization of intangibles [Member]
Schedule of Cost of Goods Sold [Line Items]
Total	41	236	126	726
FOWE cost of goods sold [Member]
Schedule of Cost of Goods Sold [Line Items]
Total	(13)		243
Salaries and Wages [Member]
Schedule of Cost of Goods Sold [Line Items]
Total	154	143	436	406
Design and engineering services for CSP [Member]
Schedule of Cost of Goods Sold [Line Items]
Total	1	51	330	221
Commission type costs [Member]
Schedule of Cost of Goods Sold [Line Items]
Total	$ 14	$ 10	$ 44	$ 40