CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (14,927)	$ (27,582)	$ (6,523)
Adjustments required to reconcile net loss to net cash used in operating activities:
Share-based compensation	2,085	2,375	3,126
Depreciation	1,086	1,118	1,302
Financial (income) expenses, net (mainly exchange differences)	(989)	417	171
Changes in accrued liability for employee rights upon retirement	(543)	133	(494)
Loss (gain) on amounts funded in respect of employee rights upon retirement	3	(100)	(28)
Gain on sale of fixed assets	0	(51)	0
Loss on extinguishment of convertible notes	0	831	0
Amortization of debt issuance costs and debt discount	300	2,673	3,470
Changes in operating assets and liabilities:
Increase (decrease) in contracts liability (including non-current portion)	(7,162)	13,230	(26,205)
Decrease (increase) in accounts receivable-trade and other assets	(1,194)	(1,032)	2,091
Changes in operating lease right of use assets, net	(5)	241	95
Decrease (increase) in inventories	1,150	(4,872)	(4,927)
Increase (decrease) in accounts payable and accruals	(4,804)	2,385	2,274
Decrease in other long term liabilities	0	(51)	(458)
Net cash used in operating activities	(25,000)	(10,285)	(26,106)
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in bank deposits	(16,000)	(37,835)	(20,000)
Proceeds from sale of short-term deposits	11,000	57,835	0
Purchase of property and equipment	(628)	(1,459)	(655)
Proceeds from sale of property and equipment	0	53	0
Decrease in restricted deposit	0	436	384
Amounts paid (funded) in respect of employee rights upon retirement, net	593	(109)	319
Net cash provided by (used in) investing activities	(5,035)	18,921	(19,952)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payment for convertible notes redemption and transactions costs	0	(30,036)	0
Payment for promissory note	0	(4,086)	(215)
Proceeds from issuance of common stock and warrants, net	0	37,625	41,343
Proceeds from issuance of common stock under the Sales Agreement, net	8,236	8,575	4,867
Exercise of warrants	2	0	472
Net cash provided by investing activities	8,238	12,078	46,467
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(77)	6	64
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(21,874)	20,720	473
BALANCE OF CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	38,985	18,265	17,792
BALANCE OF CASH AND CASH EQUIVALENTS AT END OF YEAR	17,111	38,985	18,265
SUPPLEMENTARY INFORMATION ON INVESTING AND FINANCING ACTIVITIES NOT INVOLVING CASH FLOWS:
Purchase of property and equipment	143	94	317
Operating lease right of use assets obtained in exchange for new operating lease liabilities	794	309	632
SUPPLEMENTARY DISCLOSURE ON CASH FLOWS
Interest paid	2,198	3,410	4,344
Interest received	$ 93	$ 379	$ 438