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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 9 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Operating activities:    
Net loss $ (5,862) $ (4,161)
Adjustment to reconcile net loss to net cash:    
Depreciation and amortization 312 69
Common stock-based compensation and expenses, net 523 524
Changes in:    
Accounts receivables, net (93) (73)
Inventory (911) (3,337)
Deposits and advances (2,031) (130)
Claims and advances 55 0
Accounts payable 112 278
Accrued and other liabilities (400) 146
Net cash used in operating activities (8,295) (6,684)
Investing activities:    
Purchase of property, plant and equipment (1,381) (3,675)
Proceed from marketable securities 3,081 (5,063)
Investment in non-marketable securities (149) 0
Acquisition and filing cost of patents and rights (92) (68)
Net cash provided by/(used in) investing activities 1,459 (8,806)
Financing activities:    
Issuance of equity stock (net of expenses) 0 18
Proceeds from borrowings, net 530 0
Net cash provided by financing activities 530 18
Effects of exchange rate changes on cash and cash equivalents 16 (9)
Net decrease in cash and cash equivalents (6,290) (15,481)
Cash and cash equivalents at the beginning of the period 7,258 25,610
Cash and cash equivalents at the end of the period 968 10,129
Supplementary information:    
Cash paid for interest 0 6
Non-cash items:    
Common stock issued/granted including ESOP, consultancy 523 524
Common stock issued/granted other than ESOP, consultancy $ 50 $ 0