Summary of significant accounting policies additional textual.

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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644

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- Definition

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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No definition available.

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Summary of Significant Accounting Policies (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2018 Segment shares	Apr. 30, 2018 shares	Jan. 01, 2018 USD ($)	Dec. 31, 2017 shares
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Operating segments of business \| Segment	3
Common stock, authorized shares available for issuance	35,000,000			35,000,000
Common stock, shares outstanding	27,640,921
ASU 2016-01
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Cumulative effect adjustment upon adoption of new accounting principle \| $			$ 169
Subsequent Event
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Common stock, authorized shares available for issuance		50,000,000