Related Parties - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Other Related Party Transactions [Line Items]
Claims submitted	$ 45,718,941	$ 42,761,805	$ 42,005,823
Claims payable liability	2,219,725	2,136,010	2,801,468	2,776,328
Directors' fees	154,000	159,000	159,000
Shareholders [Member]
Schedule of Other Related Party Transactions [Line Items]
Claims submitted	37,566,000	37,720,000	40,218,000
Claims payable liability	$ 1,231,000	$ 1,267,000