Cash, Cash Equivalents And Investments (Tables)

12 Months Ended

Dec. 31, 2012

Cash, Cash Equivalents And Investments [Abstract]

Schedule Of Cash And Available-For-Sale Securities

December 31, 2012
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Cash Equivalents		Short-Term Investments		Long-Term Investments
Cash equivalents:
Money Market funds	$	5,497,788	$	-	$	-	$	5,497,788	$	5,497,788	$		$
Subtotal		5,497,788		-		-		5,497,788		5,497,788		-		-
Investments:
Certificates of deposit		8,157,749		3,727		(1,945)		8,159,531		-		7,258,768		900,763
Corporate Notes/Bonds		8,241,327		35,364		(914)		8,275,777		-		3,800,143		4,475,634
Commercial Paper		1,638,892		3,735		-		1,642,627		-		1,642,627		-
Subtotal		18,037,968		42,826		(2,859)		18,077,935		-		12,701,538		5,376,397
Total	$	23,535,756	$	42,826	$	(2,859)	$	23,575,723	$	5,497,788	$	12,701,538	$	5,376,397
December 31, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Cash Equivalents		Short-Term Investments		Long-Term Investments
Cash equivalents:
Money Market funds	$	829,881	$	-	$	-	$	829,881	$	829,881	$		$
Subtotal		829,881		-		-		829,881		829,881		-		-
Investments:
Certificates of deposit		23,527,506		8,213		(16,608)		23,519,111		-		18,635,601		4,883,510
Subtotal		23,527,506		8,213		(16,608)		23,519,111		-		18,635,601		4,883,510
Total	$	24,357,387	$	8,213	$	(16,608)	$	24,348,992	$	829,881	$	18,635,601	$	4,883,510

Schedule Of Estimated Fair Value Of Available-For-Sale Securities

	Amortized Cost		Estimated Market Value
Due within one year	$	12,687,866	$	12,701,538
Due after one year through five years		5,350,102		5,376,397
	$	18,037,968	$	18,077,935