Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2012

Marketable Securities

Schedule of amortized cost and fair value for held-to-maturity securities by major security type

The amortized cost and fair value for held-to-maturity securities by major security type at December 31, 2012 and 2011 were as follows:

	2012				2011
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Held-to-maturity:
Municipal bonds	$	2,903,003	$	2,908,030	$	4,911,346	$	4,921,201
Certificates of deposit		2,802,993		2,811,677		5,192,983		5,206,119
	$	5,705,996	$	5,719,707	$	10,104,329	$	10,127,320

Schedule of maturities of investment securities

Maturities of investment securities at December 31, 2012 and 2011 were as follows:

	2012				2011
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due within one year	$	5,495,556	$	5,505,095	$	4,304,912	$	4,316,235
After one year through five years		210,440		214,612		5,799,417		5,811,085
	$	5,705,996	$	5,719,707	$	10,104,329	$	10,127,320