CONDENSED STATEMENTS OF INCOME - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
CONDENSED STATEMENTS OF INCOME
NET SALES	$ 17,569,901	$ 17,562,066
COST OF GOODS SOLD	11,332,991	11,417,474
GROSS PROFIT	6,236,910	6,144,592
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	5,611,849	5,263,372
RESEARCH AND DEVELOPMENT EXPENSES	647,065	660,402
INCOME (LOSS) FROM OPERATIONS	(22,004)	220,818
INTEREST EXPENSE	(58,222)
OTHER	11,165	4,189
INCOME (LOSS) BEFORE INCOME TAXES	(69,061)	225,007
INCOME TAX EXPENSE (BENEFIT)	(4,000)	90,000
NET INCOME (LOSS)	$ (65,061)	$ 135,007
INCOME (LOSS) PER COMMON SHARE:
Basic (in dollars per share)	$ (0.03)	$ 0.07
Diluted (in dollars per share)	$ (0.03)	$ 0.07
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	2,018,649	2,018,253
Diluted (in shares)	2,018,649	2,018,591