Fair Value (Tables)

6 Months Ended

Jun. 30, 2013

Fair Value [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

	June 30, 2013		Level 1		Level 2		Level 3
Available-for-sale securities	$	59,341	$	59,341	$	-	$	-
Trading securities		37,908		37,908		-		-
Total assets	$	97,249	$	97,249	$	-	$	-
Fair value of interest rate swap agreements	$	123,840	$	-	$	123,840	$	-
Total liabilities	$	123,840	$	-	$	123,840	$	-
	December 31, 2012		Level 1		Level 2		Level 3
Available-for-sale securities	$	56,376	$	56,376	$	-	$	-
Trading securities		34,696		34,696		-		-
Total assets	$	91,072	$	91,072	$	-	$	-
Fair value of interest rate swap agreements	$	181,600	$	-	$	181,600	$	-
Total liabilities	$	181,600	$	-	$	181,600	$	-