Investment in Unconsolidated Subsidiary (Components of the Income/Gain from the Unconsolidated Subsidiary Investment) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income from unconsolidated subsidiary (excluding merger-related adjustments)
Dividend income	$ 12	$ 12	$ 36	$ 36
Equity income		46	45	69
Total income (excluding merger-related adjustments)	12	58	81	105
Merger-Related Adjustments for Investment in Unconsolidated Subsidiary
Adjustment to LCB book value at April 30, 2018	(239)		(239)
Special merger-related dividend	39		39
Fair value gain	415		415
Total merger-related adjustments	215		215
Total income/gain from unconsolidated subsidiary	$ 227	$ 58	$ 296	$ 105

Adjustment to book value of unconsolidated subsidiary.

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- Definition

Equity method investment dividends or distributions income.

+ References

No definition available.

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- Definition

Equity method investment Total income excluding merger-related adjustments.

+ References

No definition available.

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- Definition

Equity method investment equity income

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No definition available.

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- Definition

Merger related adjustments for investment in unconsolidated subsidiary.

+ References

No definition available.

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- Definition

Merger-Related Adjustments for Investment in Unconsolidated Subsidiary [Abstract]

+ References

No definition available.

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- Definition

Special merger-related dividend

+ References

No definition available.

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- Definition

In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (g)(2)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(12))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(10))
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
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-Section 45
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(13)(f))
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

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