Note 3 - Long-term Debt Financing (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Schedule of Maturities of Long-term Debt [Table Text Block]

Year ending December 31,	Principal
2021 (excluding the nine-months ended September 30, 2021)	$	242,000
2022		1,344,000
2023		1,719,000
2024		2,094,000
2025		2,469,000
Thereafter		8,259,000
	$	16,127,000