Note 6 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	March 31, 2018
	Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
Financial Assets:
Available-for-Sale Securities –
U.S. Treasury Bills Maturing in 2018	$	---	$	16,371,544	$	---
Trading Securities:
Domestic Equities		144,460		---		---
International Equities		306,080		---		---
Others		138,908		---		---

	December 31, 2017
	Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
Financial Assets:
Available-for-Sale Securities –
U.S. Treasury Bills Maturing in 2018	$	---	$	16,371,544	$	---
Trading Securities:
Domestic Equities		249,210		---		---
International Equities		271,921		---		---
Others		38,805		---		---