Note H - Treasury Stock (Detail) (USD $)	1 Months Ended		13 Months Ended	14 Months Ended
	May 31, 2012	Aug. 31, 2011	Sep. 30, 2012	Sep. 30, 2012	Mar. 31, 2013	Dec. 31, 2012
Treasury Stock, Shares					31,821	9,126
Treasury Stock, Value (in Dollars)					$ 140,000	$ 39,000
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)				12,000,000
Sales Commissions and Fees				$ 76,000