Share Repurchase Program (Detail) (USD $)	1 Months Ended		12 Months Ended		24 Months Ended
	May 31, 2012	Aug. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012
ShareRepurchaseProgramTextBlockAbstract
Stock Repurchase Program, Authorized Amount	$ 6,000,000	$ 6,000,000
Stock Repurchased During Period, Shares (in Shares)			2,306,590		2,306,590
Stock Repurchased and Retired During Period, Shares (in Shares)			12,000
Sales Commissions and Fees				$ 76,000