Segment Information - Reportable Segment (Detail) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Revenues-External Customers	$ 21,485,000	$ 22,614,000	$ 21,415,000	$ 20,849,000	$ 20,376,000	$ 20,356,000	$ 19,621,000	$ 19,800,000	$ 86,362,613	$ 80,153,437	$ 76,226,609
Healthcare services expense									67,762,332	63,735,583	62,350,905
Total	5,657,000	4,376,000	4,673,000	3,895,000	4,892,000	4,264,000	3,701,000	3,560,000	18,601,000	16,417,000	13,876,000
Investment income									164,057	128,412	110,433
Realized gains on investments, net										34,046	17,441
Other income									61,477	67,926	60,906
Insurance expense									16,789,370	14,609,784	13,117,435
INCOME BEFORE INCOME TAX	1,127,000	188,000	581,000	140,000	759,000	988,000	151,000	140,000	2,036,445	2,038,454	947,049
Total assets-corporate	56,903,105				37,337,789				56,903,105	37,337,789	38,276,000
Fully-insured dental HMO/Indemnity [Member]
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Revenues-External Customers									46,656,000	43,844,000	42,527,000
Healthcare services expense									35,024,000	33,399,000	33,463,000
Total									11,632,000	10,445,000	9,064,000
Fully-insured dental PPO [Member]
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Revenues-External Customers									13,494,000	11,429,000	9,557,000
Healthcare services expense									10,695,000	9,363,000	8,543,000
Total									2,799,000	2,066,000	1,014,000
Self-insured dental [Member]
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Revenues-External Customers									25,641,000	24,380,000	23,650,000
Healthcare services expense									22,043,000	20,974,000	20,345,000
Total									3,598,000	3,406,000	3,305,000
Corporate, all other [Member]
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Revenues-External Customers									572,000	500,000	493,000
Total									$ 572,000	$ 500,000	$ 493,000