STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
STATEMENTS OF OPERATIONS
NET SALES	$ 17,243,244	$ 17,569,901
COST OF GOODS SOLD	11,512,699	11,332,991
GROSS PROFIT	5,730,545	6,236,910
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	5,506,466	5,611,849
RESEARCH AND DEVELOPMENT EXPENSES	688,688	647,065
LOSS FROM OPERATIONS	(464,609)	(22,004)
INTEREST EXPENSE	(83,080)	(58,222)
OTHER	23,542	11,165
LOSS BEFORE INCOME TAXES	(524,147)	(69,061)
INCOME TAX BENEFIT	(298,000)	(4,000)
NET LOSS	$ (226,147)	$ (65,061)
LOSS PER COMMON SHARE:
Basic (in dollars per share)	$ (0.11)	$ (0.03)
Diluted (in dollars per share)	$ (0.11)	$ (0.03)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	2,007,613	2,018,649
Diluted (in shares)	2,007,613	2,018,649