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Revenue Recognition (Tables) | 12 Months Ended
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Dec. 31, 2020
Revenue from Contract with Customer [Abstract] |
Schedule of Revenue Disaggregated by Source | The table below presents revenue disaggregated by source, for the years ended December 31, 2020 and 2019 (in thousands):
|  |  | Years Ended December 31,
|  |  |  |  | 2020 |  | 2019
LNG Product |  |  |  |  | $ | 27,339 |  |  | $ | 34,244 |
Rental |  |  |  |  | 6,338 |  |  | 6,569 |
Service |  |  |  |  | 1,128 |  |  | 991 |
Power Delivery |  |  |  |  | 5,260 |  |  | 3,421 |
Other |  |  |  |  | 1,485 |  |  | 1,846 |
|  |  |  |  | $ | 41,550 |  |  | $ | 47,071 |
Schedule of Contract Balances | The following table presents the changes in the Company’s contract liabilities for the years ended December 31, 2020 and 2019 (in thousands):
|  |  |  |  | December 31,
|  |  |  |  | 2020 |  | 2019
Balance at beginning of period |  |  |  |  | $ | 185 |  |  | $ | 93 |
Cash received, excluding amounts recognized as revenue |  |  |  |  | 777 |  |  | 185 |
Amounts recognized as revenue |  |  |  |  | (605) |  |  | (93) |
Balance at end of period |  |  |  |  | $ | 357 |  |  | $ | 185 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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