Income Taxes - Summary of Net Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Net operating loss carryforwards	$ 6,859	$ 6,180
Stock-based compensation	421	402
Unearned premiums and loss and loss adjustment expense reserves	6,797	5,614
Goodwill and identifiable intangible assets	4,252	5,404
Alternative minimum tax (“AMT”) credit carryforwards	2,015	2,004
Accrued expenses and other nondeductible items	1,551	1,201
Other	3,528	3,127
Deferred Tax Assets, Gross, Total	25,423	23,932
Deferred tax liabilities:
Deferred acquisition costs	(1,928)	(1,211)
Identifiable intangible assets	(1,872)	(1,872)
Net unrealized change on investments	(1,244)	(2,105)
Other	(332)	(460)
Deferred tax liabilities, gross	(5,376)	(5,648)
Total net deferred tax asset	20,047	18,284
Less: Valuation allowance	(1,746)	(1,763)
Net deferred tax asset	$ 18,301	$ 16,521