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v3.19.1

Overview and significant Accounting Policies (Details 1) |  | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2018 shares | Dec. 31, 2018 USD ($) segments shares | Dec. 31, 2017 USD ($) shares | Jan. 30, 2018 shares
Accounting Policies [Abstract] |  |  |  |
Number of reportable segments | segments |  | 1 |  |
Stock split conversion ratio | 0.10 |  |  |
Common stock, shares authorized (in shares) | 25,000,000 | 25,000,000 | 25,000,000 | 250,000,000
Preferred shares authorized (in shares) |  | 1,000,000 |  |
Impairment of long-lived assets | $ |  | $ 3,800,000 | $ 0 |

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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + 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(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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