Statements Of Stockholders' Equity And Comprehensive Income (Parentheticals) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Adjustment for pension termination, deferred income tax benefit		$ 179,641
Change in unrealized loss on marketable securities, deferred income tax effect	14,735	7,518
Accumulated Other Comprehensive Income (Loss) [Member]
Adjustment for pension termination, deferred income tax benefit		179,641
Change in unrealized loss on marketable securities, deferred income tax effect	14,735	7,518
Comprehensive Income [Member]
Adjustment for pension termination, deferred income tax benefit		179,641
Change in unrealized loss on marketable securities, deferred income tax effect	$ 14,735	$ 7,518