Note D - Income Taxes (Detail) - Provision for income taxes (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Federal	$ 2,015,345	$ 2,093,065
State	21,011	21,053
	2,036,356	2,114,118
Deferred
Federal	57,823	39,817
State	1,718	1,182
	59,541	40,999
Total provision for income taxes	$ 2,095,897	$ 2,155,117