Business Combination - Additional Information (Detail) - USD ($)		6 Months Ended
Jan. 29, 2016	Jun. 30, 2016
Business Acquisition [Line Items]
Goodwill and other intangible assets		$ 1,554,000
James & Sons Insurance Company [Member]
Business Acquisition [Line Items]
Business acquisition date		Jan. 29, 2016
Business acquisition, company stock	$ 1,500,000
Business acquisition, cash	360,000
Business acquisition, related costs		$ 9,000
Business acquisition, total assets purchase	2,300,000
Goodwill and other intangible assets	$ 1,600,000

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
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-URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e845-128460

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

+ References

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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