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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Statement of Cash Flows [Abstract]    
Net loss $ (4,095) $ (4,526)
Depreciation and amortization 307 313
Common stock-based compensation and expenses, net 804 907
Profit on sale of assets (14) (42)
Other non-cash items 0 (10)
Accounts receivables, net (5) (30)
Inventory 30 15
Deposits and advances (227) 76
Claims and advances 1 5
Accounts payable (4) 19
Accrued and other liabilities 467 185
Operating lease asset 37 63
Operating lease liability (49) (61)
Net cash used in operating activities (2,748) (3,086)
Cash flow from investing activities:    
Purchase of property, plant, and equipment (67) (55)
Sale of property, plant, and equipment 16 42
Investment in short term investments 0 128
Acquisition and development of intangible assets (145) (48)
Net cash used in investing activities (196) 67
Cash flows from financing activities:    
Net proceeds from the issuance of common stock 3,303 2,860
Repayment of long-term loan (2) (2)
Net cash provided by financing activities 3,301 2,858
Effects of exchange rate changes on cash and cash equivalents (9) (9)
Net increase (decrease) in cash and cash equivalents 348 (170)
Cash and cash equivalents at the beginning of the period 1,198 3,196
Cash and cash equivalents at the end of the period 1,546 3,026
Non-cash items:    
Common stock issued/granted for stock-based compensation, including patent acquisition $ 804 $ 907