Statements of Operations - USD ($)		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
Net sales		$ 18,213,653	$ 17,243,244
Cost of goods sold		11,959,626	11,512,699
GROSS PROFIT		6,254,027	5,730,545
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	[1]	5,350,966	5,506,466
RESEARCH AND DEVELOPMENT EXPENSES	[1]	677,242	688,688
INCOME (LOSS) FROM OPERATIONS		225,819	(464,609)
INTEREST EXPENSE		(90,583)	(83,080)
OTHER		50,229	23,542
INCOME (LOSS) BEFORE INCOME TAXES		185,465	(524,147)
INCOME TAX EXPENSE (BENEFIT)		46,000	(298,000)
NET INCOME (LOSS)		$ 139,465	$ (226,147)
INCOME (LOSS) PER COMMON SHARE:
Basic (in dollars per share)		$ 0.07	$ (0.11)
Diluted (in dollars per share)		$ 0.07	$ (0.11)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING
Basic (in shares)		1,983,553	2,007,613
Diluted (in shares)		1,983,553	2,007,613

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