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Contingencies and Commitments (Tables) | 6 Months Ended
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Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract] |
Lease, Cost |
Leases | June |  | December
2021 |  | 2020
Right-of-use assets | $ | 404 |  |  | $ | 423 |
Lease liabilities, current | $ | 109 |  |  | $ | 109 |
Lease liabilities, non-current | $ | 306 |  |  | $ | 325 |
Other information: |  |  |
Weighted-average remaining lease term | 5.8 years |  | 5.6 years
Weighted-average discount rate | 2.74 | % |  | 2.57 | %
| Three Months |  | Six Months
| 2021 |  | 2020 |  | 2021 |  | 2020
Operating lease cost | $ | 31 |  |  | $ | 31 |  |  | $ | 67 |  |  | $ | 67 |

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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