Investment in Available-for-Sale Securities (Tables)

3 Months Ended

Mar. 31, 2015

Available-For-Sale Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

The following is a summary of the Company’s investments in available-for-sale securities as of March 31, 2015 (unaudited):

	Cost		Unrealized Gains		Unrealized Losses		Fair Value
U.S. federal agency securities	$	49,761	$	87	$	(29)	$	49,819
Municipal securities		273,705		293		(785)		273,213
Certificates of deposit		1,313,716		22,647		(14,023)		1,322,340
Corporate debt securities		37,655		453		-		38,108
	$	1,674,837	$	23,480	$	(14,837)	$	1,683,480

The following is a summary of the Company’s investments in available-for-sale securities as of December 31, 2014:

	Cost		Unrealized Gains		Unrealized Losses		Fair Value
U.S. federal agency securities	$	49,739	$	68	$	(117)	$	49,690
Municipal securities		441,372		463		(966)		440,869
Certificates of deposit		1,395,990		22,904		(14,861)		1,404,033
Corporate debt securities		37,911		298		-		38,209
	$	1,925,012	$	23,733	$	(15,944)	$	1,932,801

Available-for-sale Securities [Table Text Block]

The cost and fair value of investments in fixed income available-for-sale debt securities, by contractual maturity, as of March 31, 2015 (unaudited), are as follows:

	Cost		Fair Value
Due within one year	$	679,506	$	676,232
Due after one year through three years		815,187		826,515
Due after three years		180,144		180,733
	$	1,674,837	$	1,683,480