SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION (Tables)

12 Months Ended

Dec. 31, 2021

SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION

Supplemental Information, Balance Sheets

	December 31,
(U.S. dollars in thousands)	2020		2021
a.     Other assets:
Institutions	$	771	$	311
Restricted deposits		436
Prepaid expenses		841		905
Sundry		48		69
	$	2,096	$	1,285

	December 31,
(U.S. dollars in thousands)	2020		2021
b.     Accounts payable and accruals – other:
Payroll and related expenses	$	1,460	$	1,562
Interest payable		555		767
Provision for vacation		1,526		1,506
Accrued expenses		9,586		11,981
Royalties payable		482		522
Property and equipment suppliers		317		95
	$	13,926	$	16,433