SHARE CAPITAL (Tables)

12 Months Ended

Dec. 31, 2021

SHARE CAPITAL

Schedule of Options and Restricted Stocks Granted

	No. of options or				Fair value
	restricted stock	Exercise		Vesting	at grant (U.S. dollars		Expiration
Year of grant	granted	price		period	in thousands)		period
2019	160,000	$	4.69	4 years	$	449	10 years
2019	80,000	$	2.00	4 years	$	97	10 years
2020	196,995	$	3.59	4 years	$	482	10 years
2020	760,311	$	3.66	4 years	$	1,893	10 years
2020	129,771	$	3.73	4 years	$	329	10 years
2020	694,073	$	n/a	4 years	$	2,492	10 years
2020	122,656	$	3.59	4 years	$	299	10 years
2021	50,000	$	1.57	4 years	$	55	10 years

Summary of Stock Option Activity

	Year ended December 31, 2021
		Weighted
	Number	average
	of	exercise
	options	price
Outstanding at beginning of year	2,087,275	$	5.66
Changes during the year:
Granted	50,000		1.57
Forfeited and expired	318,255		11.00
Outstanding at end of year	1,819,020	$	4.61
Exercisable at end of year	961,940	$	5.47

Summary of Restricted Stock Activity

	Year Ended December 31, 2021
	Number of Restricted Stock
Outstanding at beginning of year	624,580
Changes during the year:
Vested	166,553
Non vested at end of year	458,027

Summary of Options Granted to Consultants, Directors, and Other Service Providers

	Year ended December 31, 2021
		Weighted
	Number	average
	of	exercise
	options	price
Outstanding at beginning of year	464,375	$	3.74
Changes during the year:
Expired	24,375		5.60
Outstanding at end of year	440,000		3.63
Exercisable at end of year	192,500	$	3.63

Summary of Share Options Outstanding and Exercisable

	December 31, 2021
	Options outstanding		Options exercisable
	Number of	Weighted		Weighted
	options	average		average
	outstanding	remaining	Number of	remaining
Exercise	at end of	contractual	options	contractual
prices	year	life	exercisable*	life
$1.57	50,000	9.57	3,125	9.57
$2.00	80,000	7.73	45,000	7.73
$3.55	200,000	8.06	87,500	8.06
$3.59	319,651	8.51	112,203	8.50
$3.66	641,718	7.71	280,835	6.74
$3.70	240,000	8.10	105,000	8.10
$3.73	129,771	8.52	40,553	8.52
$4.69	160,000	7.50	100,000	7.50
$5.10	215,030	5.69	181,749	5.50
$5.60	130,000	6.71	105,625	6.71
$17.20	92,850	2.93	92,850	2.93
	2,259,020		1,154,440

Schedule of Stock-Based Compensation Expense in Statement of Operations

	Year ended December 31,
(U.S. dollars in thousands)	2019		2020		2021
Cost of goods sold					$	269
Research and development expenses	$	513	$	1,036		648
Selling, general and administrative expenses		322		2,090		1,458
	$	835	$	3,126	$	2,375