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v3.20.4

Concentration of Risks (Details) - Customer Concentration Risk - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Revenue |  |
Concentration Risk [Line Items] |  |
Revenue | $ 8,450 | $ 9,270
Concentration risk, percentage | 21.00% | 20.00%
Revenue | LNG |  |
Concentration Risk [Line Items] |  |
Revenue | $ 8,450 | $ 13,476
Concentration risk, percentage | 21.00% | 31.00%
Revenue | Power Delivery |  |
Concentration Risk [Line Items] |  |
Revenue | $ 754 | $ 879
Concentration risk, percentage | 15.00% | 26.00%
Revenue | Customer 1 |  |
Concentration Risk [Line Items] |  |
Revenue | $ 4,915 | $ 9,270
Concentration risk, percentage | 12.00% | 20.00%
Revenue | Customer 1 | LNG |  |
Concentration Risk [Line Items] |  |
Revenue | $ 4,915 | $ 9,270
Concentration risk, percentage | 12.00% | 21.00%
Revenue | Customer 1 | Power Delivery |  |
Concentration Risk [Line Items] |  |
Revenue | $ 527 | $ 472
Concentration risk, percentage | 10.00% | 14.00%
Revenue | Customer 2 | LNG |  |
Concentration Risk [Line Items] |  |
Revenue | $ 3,535 | $ 4,206
Concentration risk, percentage | 9.00% | 10.00%
Revenue | Customer 2 | Power Delivery |  |
Concentration Risk [Line Items] |  |
Revenue | $ 96 | $ 407
Concentration risk, percentage | 2.00% | 12.00%
Revenue | Customer 3 | Power Delivery |  |
Concentration Risk [Line Items] |  |
Revenue | $ 131 |
Concentration risk, percentage | 3.00% |
Accounts Receivable |  |
Concentration Risk [Line Items] |  |
Concentration risk, percentage | 46.00% | 19.00%
Accounts Receivable | $ 2,615 | $ 1,172
Accounts Receivable | LNG |  |
Concentration Risk [Line Items] |  |
Concentration risk, percentage | 52.00% | 23.00%
Accounts Receivable | $ 2,615 | $ 1,172
Accounts Receivable | Power Delivery |  |
Concentration Risk [Line Items] |  |
Concentration risk, percentage | 33.00% | 17.00%
Accounts Receivable | $ 202 | $ 154
Accounts Receivable | Customer 1 |  |
Concentration Risk [Line Items] |  |
Concentration risk, percentage | 25.00% | 19.00%
Accounts Receivable | $ 1,423 | $ 1,172
Accounts Receivable | Customer 1 | LNG |  |
Concentration Risk [Line Items] |  |
Concentration risk, percentage | 28.00% | 23.00%
Accounts Receivable | $ 1,423 | $ 1,172
Accounts Receivable | Customer 1 | Power Delivery |  |
Concentration Risk [Line Items] |  |
Concentration risk, percentage | 1.00% | 6.00%
Accounts Receivable | $ 1 | $ 51
Accounts Receivable | Customer 2 | LNG |  |
Concentration Risk [Line Items] |  |
Concentration risk, percentage | 24.00% | 0.00%
Accounts Receivable | $ 1,192 | $ 0
Accounts Receivable | Customer 2 | Power Delivery |  |
Concentration Risk [Line Items] |  |
Concentration risk, percentage | 18.00% | 11.00%
Accounts Receivable | $ 112 | $ 103
Accounts Receivable | Customer 3 | Power Delivery |  |
Concentration Risk [Line Items] |  |
Concentration risk, percentage | 14.00% |
Accounts Receivable | $ 89 |

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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(5)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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