Note 5 - Fair Value Measurements (Tables)

3 Months Ended

Dec. 31, 2019

Notes Tables

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	December 31, 2019
	Cost Basis		Unrealized Gain		Fair Value		Cash Equivalents		Short-term Securities		Long-term Securities
Level 1:
Money Market Funds	$	254,408	$	-	$	254,408	$	254,408	$	-	$	-
Level 2:
Certificates of deposit		1,444,833		-		1,444,833		-		499,000		945,833
Municipal securities		270,221		453		270,674		-		270,674		-
Corporate bonds		3,404,812		7,423		3,412,235		-		3,412,235		-
Subtotal		5,119,866		7,876		5,127,742		-		4,181,909		945,833
Total	$	5,374,274	$	7,876	$	5,382,150	$	254,408	$	4,181,909	$	945,833

	September 30, 2019
	Cost Basis		Unrealized Gain		Fair Value		Cash Equivalents		Short-term Securities		Long-term Securities
Level 1:
Money Market Funds	$	275,538	$	-	$	275,538	$	275,538	$	-	$	-
Level 2:
Certificates of deposit		971,592		-		971,592		-		499,000		472,592
Municipal securities		240,463		205		240,668		-		80,336		160,332
Corporate bonds		3,856,766		11,157		3,867,923		-		3,116,028		751,895
Subtotal		5,068,821		11,362		5,080,183		-		3,695,364		1,384,819
Total	$	5,344,359	$	11,362	$	5,355,721	$	275,538	$	3,695,364	$	1,384,819