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Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounting Policies [Abstract] |
Schedule of Revenue Disaggregated by Revenue Source | The following table presents the Company’s revenue disaggregated by revenue source, net of commissions, for the years ended December 31, 2018, 2019 and 2020:
|  | December 31, 2018 |  |  | December 31, 2019 |  |  | December 31, 2020
Revenues derived from spot charters, net |  | $ | 16,990 |  |  | $ | 8,067 |  |  | $ | 7,022
Revenues derived from time charters, net |  |  | 11,467 |  |  |  | 19,686 |  |  |  | 14,689
Revenues, net |  | $ | 28,457 |  |  | $ | 27,753 |  |  | $ | 21,711
Summary of Revenue from Significant Charterers for 10% or More of Revenue | Revenues for the years ended December 31, 2018, 2019 and 2020, deriving from significant charterers individually accounting for 10% or more of revenues (in percentages of total revenues), were as follows:
Charterer |  | 2018 | 2019 | 2020
A |  |  | 23% |  | 71% |  | 58%
B |  |  | 15% |  | — |  | —
C |  |  | — |  | — |  | 16%
|  |  | 38% |  | 71% |  | 74%
Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash | The following table provides a reconciliation of cash and cash equivalents and restricted cash reported within the accompanying consolidated balance sheets that are presented in the accompanying consolidated statement of cash flows for the years ended December 31, 2018, 2019 and 2020.
|  | December 31, 2018 |  | December 31, 2019 |  | December 31, 2020
Cash and cash equivalents |  | $ | 545 |  | $ | 1,441 |  | $ | 1,620
Restricted cash, current portion |  |  | 255 |  |  | 535 |  |  | —
Restricted cash, net of current portion |  |  | 3,404 |  |  | 3,200 |  |  | 2,417
Total cash and cash equivalents and restricted cash |  | $ | 4,204 |  | $ | 5,176 |  | $ | 4,037

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- Definition Reconciliation of cash and cash equivalents and restricted cash. + References No definition available. + 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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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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