Note 3 - Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

Fair Value, by Balance Sheet Grouping [Table Text Block]

	Carrying		Fair
Description	Amount		Value		Level 1		Level 2		Level 3
June 30, 2018
Long-term debt	$	2,855,861	$	2,855,861		-	$	2,855,861		-
Note receivable		1,463,926		1,579,000		-		1,579,000		-
Marketable securities		331,000		331,000	$	331,000		-		-
December 31, 2017
Long-term debt	$	3,045,421	$	3,045,421		-	$	3,045,421		-
Note receivable		1,521,005		1,684,000		-		1,684,000		-
Marketable securities		330,000		330,000	$	330,000		-		-