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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Cash flows from operating activities:    
Net loss $ (7,121) $ (13,000)
Adjustment to reconcile net loss to net cash:    
Depreciation and amortization 618 637
Provision for bad debt 13 93
Impairment of assets 152 3,448
Common stock-based compensation and expenses, net 1,640 1,773
Profit/Loss on sale of fixed assets, net (25) (44)
Changes in:    
Accounts receivables, net (8) (25)
Inventory 180 1,008
Deposits and advances (187) 150
Claims and advances 7 315
Accounts payable 106 243
Accrued and other liabilities (196) 197
Operating lease asset 100 129
Operating lease liability (74) (123)
Net cash used in operating activities (4,795) (5,199)
Cash flow from investing activities:    
Purchase of property, plant, and equipment (112) (138)
Sale of property, plant, and equipment 40 44
Proceeds from short-term investments 0 154
Acquisition and development of intangible assets (370) (377)
Net cash used in investing activities (442) (317)
Cash flows from financing activities:    
Net proceeds from the issuance of common stock 4,454 3,027
Proceeds from common stock subscribed 0 500
Repayment of long-term loan (3) (3)
Net cash provided by financing activities 4,451 3,524
Effects of exchange rate changes on cash and cash equivalents (7) (6)
Net decrease in cash and cash equivalents (793) (1,998)
Cash and cash equivalents at the beginning of the period 1,198 3,196
Cash and cash equivalents at the end of the period 405 1,198
Non-cash items:    
Common stock issued/granted for stock-based compensation, including patent acquisition $ 1,640 $ 1,773