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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Cash flows from operating activities:    
Net loss $ (1,599) $ (2,378)
Adjustment to reconcile net loss to net cash:    
Depreciation and amortization 141 162
Common stock-based compensation and expenses, net 452 402
Other non-cash items (24) 0
Changes in:    
Accounts receivable, net (53) 11
Inventory 11 30
Deposits and advances 183 (118)
Claims and advances 0 0
Accounts payable 51 (2)
Accrued and other liabilities (599) 151
Operating lease asset 32 5
Operating lease liability (2) (15)
Net cash used in operating activities (1,407) (1,752)
Cash flow from investing activities:    
Purchase of property, plant, and equipment (8) (38)
Sale of property, plant, and equipment 702 0
Acquisition and development of intangible assets (114) (93)
Net cash provided by (used in) investing activities 580 (131)
Cash flows from financing activities:    
Net proceeds from the issuance of common stock 852 2,508
Repayment of a long-term loan (1) (1)
Net cash provided by financing activities 851 2,507
Effects of exchange rate changes on cash and cash equivalents 25 2
Net increase in cash and cash equivalents 49 626
Cash and cash equivalents at the beginning of the period 405 1,198
Cash and cash equivalents at the end of the period 454 1,824
Supplementary information:    
Interest paid 1 1
Non-cash item:    
Profit on the sale of Asset held for sale $ 24 $ 0