Investments - Summary of Company's Investment Securities (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Investment Securities [Line Items]
Amortized Cost	$ 115,854	$ 126,873
Gross Unrealized Gains	6,674	5,666
Gross Unrealized Losses	(1,015)	(2,291)
Fair Value	121,513	130,248
Preferred Stock
Investment Securities [Line Items]
Amortized Cost	1,500	1,500
Gross Unrealized Gains	221	78
Fair Value	1,721	1,578
Equity Funds
Investment Securities [Line Items]
Amortized Cost	9,900	9,901
Gross Unrealized Gains	871	836
Fair Value	10,771	10,737
Fixed Maturities
Investment Securities [Line Items]
Amortized Cost	104,454	115,472
Gross Unrealized Gains	5,582	4,752
Gross Unrealized Losses	(1,015)	(2,291)
Fair Value	109,021	117,933
Fixed Maturities \| US Government Agencies Debt Securities
Investment Securities [Line Items]
Amortized Cost	4,005	12,006
Gross Unrealized Gains	290	495
Gross Unrealized Losses	(8)	(16)
Fair Value	4,287	12,485
Fixed Maturities \| State Securities
Investment Securities [Line Items]
Amortized Cost	698	697
Gross Unrealized Gains	33	39
Fair Value	731	736
Fixed Maturities \| Political Subdivisions Securities
Investment Securities [Line Items]
Amortized Cost	500	601
Gross Unrealized Gains	8	11
Fair Value	508	612
Fixed Maturities \| Revenue And Assessment Securities
Investment Securities [Line Items]
Amortized Cost	11,346	14,050
Gross Unrealized Gains	1,173	619
Gross Unrealized Losses		(11)
Fair Value	12,519	14,658
Fixed Maturities \| Corporate Bond Securities
Investment Securities [Line Items]
Amortized Cost	74,950	73,461
Gross Unrealized Gains	2,483	2,127
Gross Unrealized Losses	(1,007)	(2,263)
Fair Value	76,426	73,325
Fixed Maturities \| Agency Backed [Member]
Investment Securities [Line Items]
Amortized Cost	6,848	7,113
Gross Unrealized Gains	223	401
Fair Value	7,071	7,514
Fixed Maturities \| Collateralized Non Agency Backed Residential Obligations
Investment Securities [Line Items]
Amortized Cost	3,682	4,181
Gross Unrealized Gains	676	480
Gross Unrealized Losses		(1)
Fair Value	4,358	4,660
Fixed Maturities \| Collateralized Non Agency Backed Commercial Obligations
Investment Securities [Line Items]
Amortized Cost	2,425	3,363
Gross Unrealized Gains	696	580
Fair Value	$ 3,121	$ 3,943

Amount of accumulated pre-tax unrealized gain before deducting pre-tax unrealized losses on investments in available-for-sale securities impacting investments.

No definition available.

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- Definition

Amount of accumulated pre-tax unrealized loss before deducting pre-tax unrealized gain on investments in available-for-sale securities impacting investments.

+ References

No definition available.

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- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Available-for-Sale Securities

-URI http://asc.fasb.org/extlink&oid=6505594

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Trading Securities

-URI http://asc.fasb.org/extlink&oid=6526789

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Subparagraph a, f, g

-Article 7

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 35

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=27723805&loc=d3e24584-111560

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