Note 7 - Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

Long-term debt as of December 31 consists of the following:
	201 9			201 8
HSBC $10,387,500 Mortgage payable secured by real property Buildings and improvements at 555 N Research Drive, Central Islip, NY payable in monthly principle installments of $62,481 including Interest at a rate of 3.9148% maturing on December 1, 2022.	$	9,686,211		$	10,043,802
MesoScribe Technologies, Inc. $300,000 acquisition related contingent payment (1)		-			200,000
HSBC $6,000,000 Mortgage payable secured by building Buildings and improvements at 355 South Technology Drive, Central Islip, NY payable in monthly principle installments of $25,000 plus interest. Interest presently accrues at our option, at the variable rate of LIBOR plus 1.75% or HSBC’s Prime rate minus 0.50% The loan matures on March 1, 2022.		2,365,508			2,665,508
Total long-term debt	$	12,051,719		$	12,909,310
Less: Current maturities		(674,593	)		(857,590	)
Long-term debt	$	11,377,126		$	12,051,720

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

2020	$	674,593
2021		690,813
2022		10,686,313
Total long-term debt	$	12,051,719