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Lease Commitments - Operating and financing leases - (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Lease Commitments |  |
Operating lease, Within 1 year | $ 120 | $ 120
Operating lease, After 1 year but within 2 years | 85 | 98
Operating lease, After 2 years but within 3 years | 69 | 69
Operating lease, After 3 years but within 4 years | 69 | 69
Operating lease, After 4 years but within 5 years | 69 | 69
Operating lease, After 5 years | 504 | 520
Total undiscounted cash flows | 916 | 945
Discount on cash flows | (164) | (169)
Total lease liabilities | 752 | 776
Financing lease, Within 1 year | 317 | 316
Financing lease, After 1 year but within 2 years | 320 | 320
Financing lease, After 2 years but within 3 years | 290 | 309
Financing lease, After 3 years but within 4 years | 251 | 249
Financing lease, After 4 years but within 5 years | 231 | 248
Financing lease, After 5 years | 2,714 | 2,760
Total undiscounted cash flows | 4,123 | 4,202
Discount on cash flows | (1,066) | (1,093)
Total lease liabilities | $ 3,057 | $ 3,109

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- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due after fifth fiscal year following latest statement of financial position date. For interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details
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