Statements of Operations - USD ($)		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018
Net sales		$ 17,618,559	$ 18,213,653
Cost of goods sold		12,221,370	11,959,626
GROSS PROFIT		5,397,189	6,254,027
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	[1]	5,483,586	5,350,966
RESEARCH AND DEVELOPMENT EXPENSES	[1]	870,279	677,242
(LOSS) INCOME FROM OPERATIONS		(956,676)	225,819
INTEREST EXPENSE		(90,058)	(90,583)
OTHER INCOME		61,176	50,229
(LOSS) INCOME BEFORE INCOME TAXES		(985,558)	185,465
INCOME TAX (BENEFIT) EXPENSE		(172,000)	46,000
NET (LOSS) INCOME		$ (813,558)	$ 139,465
(LOSS) INCOME PER COMMON SHARE
Basic (in dollars per share)		$ (0.41)	$ 0.07
Diluted (in dollars per share)		$ (0.41)	$ 0.07
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING
Basic (in shares)		1,980,253	1,983,553
Diluted (in shares)		1,980,253	1,983,553

[1] The Company does not allocate all general and administrative expenses or any research and development expenses to its operating segments for internal reporting.