Business Combination - Additional Information (Detail) - USD ($)		3 Months Ended
	Jan. 29, 2016	Mar. 31, 2016
Business Acquisition [Line Items]
Goodwill and other intangible assets		$ 1,620,000
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		$ 0
Business acquisition, consideration transferred, common shares issued, fair value method		The fair value of the 262,705 common shares issued, as part of the consideration paid for James & Sons Insurance, was determined based on the closing price per share for the 20 consecutive trading days ending five business days prior to January 29, 2016
Business acquisition, common shares issued	262,705
Period of consecutive trading days for fair value assumptions of stock issued	20 days
Period of business days prior to acquisition	5 days
Business acquisition, total assets purchase	$ 2,300,000
Goodwill and other intangible assets	$ 1,600,000