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Proposed Acquisition of Delaware Bancshares, Inc. (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Mar. 10, 2016	Dec. 31, 2015
Subsequent Event, Date		Mar. 10, 2016
Subsequent Event [Member] | Delaware Bancshares and NBDC Bank Proposed Acquisition [Member]
Business Acquisition, Share Price	$ 16.68
Business Acquisition, shares exchanged	0.6221
Business Combination, Contingent Consideration, Asset, Current	$ 615
Subsequent Event [Member] | Delaware Bancshares and NBDC Bank Proposed Acquisition [Member] | Maximum [Member]
Percent of cash consideration	25.00%
Percent decline in market value resulting in possible termination	20.00%

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Number of shares received in the surviving company for each share of the acquiree company's shares.

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Percentage decline in market value of common stock in the acquiring company allowed before possible termination of a merger agreement.

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Percentage of consideration paid in the form of cash.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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- Definition

Amount of asset recognized arising from contingent consideration in a business combination, expected to be realized within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph b
-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

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-Name Accounting Standards Codification
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-Section 25
-Paragraph 7
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Date the event occurred after the balance sheet date but before financial statements are issues or available to be issued, in CCYY-MM-DD format.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
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