CONDENSED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
CONDENSED STATEMENTS OF OPERATIONS
NET SALES	$ 17,562,066	$ 18,489,837
COST OF GOODS SOLD	11,417,474	11,786,608
GROSS PROFIT	6,144,592	6,703,229
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	5,263,372	5,124,764
RESEARCH AND DEVELOPMENT EXPENSES	660,402	664,999
INCOME FROM OPERATIONS	220,818	913,466
OTHER	4,189	5,304
INCOME BEFORE INCOME TAXES	225,007	918,770
FEDERAL AND STATE INCOME TAXES (Note 2)	90,000	270,000
NET INCOME	$ 135,007	$ 648,770
EARNINGS PER COMMON SHARE:
Basic (in dollars per share)	$ 0.07	$ 0.32
Diluted (in dollars per share)	$ 0.07	$ 0.32
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	2,018,253	2,017,144
Diluted (in shares)	2,018,591	2,018,334