Investments - Summary of Company's Investment Securities (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Investment Securities [Line Items]
Amortized Cost	$ 124,959	$ 126,873
Gross Unrealized Gains	7,375	5,666
Gross Unrealized Losses	(1,050)	(2,291)
Fair Value	131,284	130,248
Mutual Funds [Member]
Investment Securities [Line Items]
Amortized Cost	9,901	9,901
Gross Unrealized Gains	1,158	836
Gross Unrealized Losses		0
Fair Value	11,059	10,737
Fixed Maturities [Member]
Investment Securities [Line Items]
Amortized Cost	115,058	116,972
Gross Unrealized Gains	6,217	4,830
Gross Unrealized Losses	(1,050)	(2,291)
Fair Value	120,225	119,511
Fixed Maturities [Member] | U.S. Government and Agencies [Member]
Investment Securities [Line Items]
Amortized Cost	12,005	12,006
Gross Unrealized Gains	361	495
Gross Unrealized Losses	(5)	(16)
Fair Value	12,361	12,485
Fixed Maturities [Member] | State [Member]
Investment Securities [Line Items]
Amortized Cost	698	697
Gross Unrealized Gains	35	39
Gross Unrealized Losses
Fair Value	733	736
Fixed Maturities [Member] | Political Subdivisions [Member]
Investment Securities [Line Items]
Amortized Cost	501	601
Gross Unrealized Gains	10	11
Gross Unrealized Losses
Fair Value	511	612
Fixed Maturities [Member] | Revenue and Assessment [Member]
Investment Securities [Line Items]
Amortized Cost	11,838	14,050
Gross Unrealized Gains	1,097	619
Gross Unrealized Losses		(11)
Fair Value	12,935	14,658
Fixed Maturities [Member] | Corporate Bonds [Member]
Investment Securities [Line Items]
Amortized Cost	75,093	73,461
Gross Unrealized Gains	2,818	2,127
Gross Unrealized Losses	(1,045)	(2,263)
Fair Value	76,866	73,325
Fixed Maturities [Member] | Agency Backed [Member]
Investment Securities [Line Items]
Amortized Cost	6,892	7,113
Gross Unrealized Gains	283	401
Gross Unrealized Losses
Fair Value	7,175	7,514
Fixed Maturities [Member] | Non-Agency Backed - Residential [Member]
Investment Securities [Line Items]
Amortized Cost	3,855	4,181
Gross Unrealized Gains	693	480
Gross Unrealized Losses		(1)
Fair Value	4,548	4,660
Fixed Maturities [Member] | Non-Agency Backed - Commercial [Member]
Investment Securities [Line Items]
Amortized Cost	2,676	3,363
Gross Unrealized Gains	724	580
Gross Unrealized Losses
Fair Value	3,400	3,943
Fixed Maturities [Member] | Redeemable Preferred Stock [Member]
Investment Securities [Line Items]
Amortized Cost	1,500	1,500
Gross Unrealized Gains	196	78
Gross Unrealized Losses
Fair Value	$ 1,696	$ 1,578