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Income Taxes - Summary of Tax Loss Carryforwards (Details) $ in Thousands | Dec. 31, 2017 USD ($)
--- | ---
Federal [Member] |  |
2022 |  |
2023 – 2031 | 1,748 |
2032-2034 | 45,957 |
2035 - 2036 | 14,776 |
Total | 62,481 |
Capital Loss [Member] |  |
2022 | 8,717 |
2023 – 2031 |  | [1]
2032-2034 |  |
2035 - 2036 |  |
Total | 8,717 |
State [Member] |  |
2022 |  |
2023 – 2031 |  |
2032-2034 | 8,872 |
2035 - 2036 | 4,179 |
Total | $ 13,051 |
[1] | The utilization of a portion of these net operating loss carryforwards may be limited due to limits on utilizing net operating loss carryforwards under Internal Revenue Service regulations following a change in control.

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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