(4) Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2012

Notes to Financial Statements

Schedule Of Fair Value Assets Measured On Recurring Basis

12/31/2012
		Fair Value Measurements at Reporting Date Using
		Quoted Prices in		Significant
		Active Markets for	Significant other	Unobservable
		Identical Assets	Inputs	Inputs
	Total	(Level 1)	(Level 2)	(Level 3)
Cash equivalents:
Money market funds	$         4,285,309	$               4,285,309
Total cash equivalents	4,285,309	4,285,309	-	-
Marketable securities:
Corporate debt and government securities	10,530,942	-	10,530,942	-
Total marketable securities	10,530,942	-	10,530,942	-
Total assets measured at fair value	$       14,816,251	$               4,285,309	$             10,530,942	$                       -
12/31/2011
		Fair Value Measurements at Reporting Date Using
		Quoted Prices in		Significant
		Active Markets for	Significant other	Unobservable
		Identical Assets	Inputs	Inputs
	Total	(Level 1)	(Level 2)	(Level 3)
Cash equivalents:
Money market funds	$         8,129,960	$               8,129,960	$                           -	$                     -
Total cash equivalents	8,129,960	8,129,960	-	-
Marketable securities:
Corporate debt and government securities	20,894,328	-	20,894,328	-
Auction rate securities	611,082	-	-	611,082
Total marketable securities	21,505,410	-	20,894,328	611,082
Total assets measured at fair value	$       29,635,370	$               8,129,960	$             20,894,328	$           611,082

Fair Value Measurements Using Significant Unobservable Inputs

	Fair Value Measurements Using
	Significant Unobservable Inputs
	(Level 3)
	Auction Rate Securities
	December 31, 2012	December 31, 2011
Beginning Balance	$                  611,082	$                  578,643
Total unrealized gains in accumulated
other comprehensive loss	88,918	32,439
Securities called by issuer	(700,000)	-
Ending Balance	$                           -	$                  611,082