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Stockholders' Equity - Preferred Stock Issuances - Additional Information (Details) - USD ($) | Mar. 29, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Nov. 05, 2018
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Stockholders Equity Note [Line Items] |  |  |  |
Preferred stock, par value (in dollars per share) |  | $ 0.01 | $ 0.01 |
Preferred stock, stated value |  | $ 0 | $ 0 |
Series D Preferred Shares [Member] |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |
Preferred stock, par value (in dollars per share) |  |  |  | $ 0.01
Preferred stock, stated value | $ 1,160,000 |  |  |
Proceeds and issued senior secured promissory note | 400,000 |  |  |
Issuance of senior secured promissory note in exchange of preferred stock | $ 1,560,000 |  |  |

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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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