Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended			3 Months Ended											12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Sep. 30, 2012 Scenario, Actual [Member]	Jun. 30, 2012 Scenario, Actual [Member]	Mar. 31, 2012 Scenario, Actual [Member]	Dec. 31, 2011 Scenario, Actual [Member]	Sep. 30, 2011 Scenario, Actual [Member]	Jun. 30, 2011 Scenario, Actual [Member]	Mar. 31, 2011 Scenario, Actual [Member]	Dec. 31, 2010 Scenario, Actual [Member]	Sep. 30, 2010 Scenario, Actual [Member]	Jun. 30, 2010 Scenario, Actual [Member]	Mar. 31, 2010 Scenario, Actual [Member]	Dec. 31, 2011 Scenario, Actual [Member]	Dec. 31, 2010 Scenario, Actual [Member]
Revenues
Service and administrative fees									$ 90,550		$ 56,254	$ 22,898	$ 21,786	$ 22,511	$ 25,195	$ 26,956	$ 21,121	$ 21,192	$ 18,387	$ 17,967	$ 11,925	$ 7,975	$ 94,464	$ 56,254
Brokerage commissions and fees									35,306		24,620	8,411	9,364	9,520	8,710	8,611	9,208	7,867	5,452	6,034	6,404	6,730	34,396	24,620
Ceding commission									34,825		28,767	11,122	7,210	7,064	8,067	7,027	6,243	8,158	6,299	9,455	6,389	6,624	29,495	28,767
Net investment income	849	744	732	743	732	801	894	941	3,068		4,073	744	732	743	732	801	894	941	1,274	865	986	948	3,368	4,073
Net realized investment gains	9	(16)	13	(3)	1,770	1,196	1,132	95	3	4,193	650	(16)	13	(3)	1,770	1,196	1,132	95	494	107	47	2	4,193	650
Net earned premium									127,625	115,503	111,805	33,893	31,905	31,972	30,857	28,673	27,536	28,437	28,388	28,255	26,669	28,493	115,503	111,805
Other income									269		230	52	48	72	32	18	38	82	110	(6)	45	81	170	230
Total revenues	71,605	77,104	71,058	71,879	75,363	73,282	66,172	66,772	291,646	281,589	226,399	77,104	71,058	71,879	75,363	73,282	66,172	66,772	60,404	62,677	52,465	50,853	281,589	226,399
Expenses:
Net losses and loss adjustment expenses									40,219	37,949	36,035	11,430	9,576	11,266	9,611	9,714	9,251	9,373	8,949	10,993	7,316	8,777	37,949	36,035
Member benefit claims									4,642	4,409	466	1,157	1,098	1,303	1,288	945	1,309	867	278	211	(23)	0	4,409	466
Commissions									128,741	126,918	92,646	33,377	31,282	31,988	34,348	33,937	28,727	29,906	27,383	24,959	20,955	19,349	126,918	92,646
Personnel costs									48,648		36,361	12,708	12,367	11,392	11,182	10,945	11,428	10,992	8,422	9,526	9,332	9,081	44,547	36,361
Other operating expenses									30,354		24,426	7,959	6,937	6,739	7,361	7,267	9,298	7,214	5,951	6,625	6,058	5,792	31,140	24,426
Depreciation and Amortization									3,933	3,077	1,396	871	975	738	794	886	814	583	406	431	284	275	3,077	1,396
Amortization of intangibles									4,953	4,952	3,232	1,127	1,166	1,482	1,524	998	1,378	1,052	886	788	779	779	4,952	3,232
Interest expense									6,624	7,641	8,464	2,025	1,590	1,652	1,779	1,906	1,925	2,031	2,342	2,246	1,985	1,891	7,641	8,464
Loss on sale of subsidiary									0	477					0	477							477	0
Total expenses	65,909	70,654	64,991	66,560	67,887	67,075	64,130	62,018	268,114		203,026	70,654	64,991	66,560	67,887	67,075	64,130	62,018	54,617	55,779	46,686	45,944	261,110	203,026
Income before income taxes and non-controlling interests	5,696	6,450	6,067	5,319	7,476	6,207	2,042	4,754	23,532	20,479	23,373	6,450	6,067	5,319	7,476	6,207	2,042	4,754	5,787	6,898	5,779	4,909	20,479	23,373
Income taxes	1,903	2,397	2,108	1,887	2,572	2,209	750	1,609	8,295	7,140	8,159	2,397	2,108	1,887	2,572	2,209	750	1,609	1,619	2,532	2,162	1,846	7,140	8,159
Income before non-controlling interest	3,793	4,053	3,959	3,432	4,904	3,998	1,292	3,145	15,237	13,339	15,214	4,053	3,959	3,432	4,904	3,998	1,292	3,145	4,168	4,366	3,617	3,063	13,339	15,214
Less: net income (loss) attributable to non-controlling interests	10	29	15	18	1	1	2	(174)	72	(170)	20	29	15	18	1	1	2	(174)	51	0	(46)	15	(170)	20
Net Income	$ 3,783	$ 4,024	$ 3,944	$ 3,414	$ 4,903	$ 3,997	$ 1,290	$ 3,319	$ 15,165	$ 13,509	$ 15,194	$ 4,024	$ 3,944	$ 3,414	$ 4,903	$ 3,997	$ 1,290	$ 3,319	$ 4,117	$ 4,366	$ 3,663	$ 3,048	$ 13,509	$ 15,194
Earnings per share:
Basic	$ 0.19	$ 0.21	$ 0.20	$ 0.17	$ 0.24	$ 0.20	$ 0.06	$ 0.16	$ 0.77		$ 0.95	$ 0.21	$ 0.20	$ 0.17	$ 0.24	$ 0.20	$ 0	$ 0	$ 0.25	$ 0.28	$ 0	$ 0	$ 0.66	$ 0.95
Diluted	$ 0.18	$ 0.20	$ 0.19	$ 0.16	$ 0.24	$ 0.19	$ 0.06	$ 0.15	$ 0.74		$ 0.88	$ 0.20	$ 0.19	$ 0.16	$ 0.24	$ 0.19	$ 0	$ 0	$ 0.23	$ 0.26	$ 0	$ 0	$ 0.64	$ 0.88
Weighted average common shares outstanding:
Basic	19,507,733	19,531,694	19,705,276	19,904,819	20,343,038	20,404,441	20,510,254	20,464,592	19,655,492			19,531,694	19,705,276	19,904,819	20,343,038	20,404,441	20,510,254	20,464,592	16,483,626	15,742,336	15,742,336	15,742,336	20,352,027	15,929,181
Diluted	20,507,329	20,463,238	20,632,233	20,739,196	20,955,690	21,214,365	21,592,418	21,668,333	20,600,362			20,463,238	20,632,233	20,739,196	20,955,690	21,214,365	21,592,418	21,668,333	17,703,334	17,057,157	17,040,432	16,941,372	21,265,801	17,220,029