Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- References

No definition available.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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-Publisher FASB
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-Topic 718
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Share-based Compensation - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restricted Shares [Member]
Stock Based Compensation [Abstract]
Unrecognized compensation cost	$ 241,000	$ 265,000	$ 241,000	$ 265,000
Stock Incentive Plan [Member]
Stock Based Compensation [Abstract]
Number of shares authorized (in shares)	350,000		350,000
Stock Incentive Plan [Member] \| Restricted Shares [Member]
Stock Based Compensation [Abstract]
Recognition period for total unrecognized compensation costs			3 years
Stock Incentive Plan [Member] \| Restricted Shares [Member] \| Nonemployee Director [Member]
Stock Based Compensation [Abstract]
Compensation expense	$ 40,000	39,000	$ 169,000	155,000
Stock Incentive Plan [Member] \| Performance-Based Restricted Stock Units [Member]
Stock Based Compensation [Abstract]
Unrecognized compensation cost	188,000	200,000	188,000	200,000
Stock Incentive Plan [Member] \| Performance-Based Restricted Stock Units [Member] \| Certain Executive Officers [Member]
Stock Based Compensation [Abstract]
Compensation expense	$ 28,000	$ 21,000	$ 54,000	$ 40,000