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Supplementary Balance Sheet Information | 12 Months Ended
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Dec. 31, 2020
Disclosure Text Block Supplement [Abstract] |
SUPPLEMENTARY BALANCE SHEET INFORMATION | NOTE 9 - SUPPLEMENTARY BALANCE SHEET INFORMATION
| a. | Cash, cash equivalents and short-term bank deposits:
|  | December 31, |
|  | 2 0 2 0 |  |  | 2 0 1 9 |
|  | U.S. dollars in thousands |
Cash |  | $ | 4,221 |  |  | $ | 2,681 |
Cash equivalents |  |  | 4,039 |  |  |  | 3,798 |
Total cash and cash equivalents |  | $ | 8,260 |  |  | $ | 6,479 |
Short-term bank deposits* |  | $ | 7,180 |  |  | $ | 6,795 |
| * | The average rate of short-term deposits is 1.27% and 2.42%, as of December 31, 2020 and 2019, respectively.
| b. | Accounts receivable - other:
|  | 2 0 2 0 |  |  | 2 0 1 9 |
|  | U.S. dollars in thousands |
Government institutions |  | $ | 29 |  |  | $ | 213 |
Employees |  |  | 26 |  |  |  | 47 |
Interest receivable |  |  | 23 |  |  |  | 70 |
Sundry |  |  | 191 |  |  |  | 247 |
|  | $ | 269 |  |  | $ | 577 |
| c. | Accounts payable and accruals - other:
|  | December 31, |
|  | 2 0 2 0 |  |  | 2 0 1 9 |
|  | U.S. dollars in thousands |
Payroll and related expenses |  | $ | 801 |  |  | $ | 797 |
Government institutions |  |  | 370 |  |  |  | 415 |
Accrued vacation pay |  |  | 101 |  |  |  | 91 |
Accrued expenses and sundry |  |  | 636 |  |  |  | 515 |
|  | $ | 1,908 |  |  | $ | 1,818 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI http://asc.fasb.org/topic&trid=2122208 + Details
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