CONDENSED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
CONDENSED STATEMENTS OF OPERATIONS
NET SALES	$ 4,685,361	$ 4,196,578	$ 8,314,353	$ 8,209,788
COST OF GOODS SOLD	3,242,097	2,674,367	5,780,861	5,390,903
GROSS PROFIT	1,443,264	1,522,211	2,533,492	2,818,885
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	1,393,636	1,325,170	2,904,250	2,764,286
RESEARCH AND DEVELOPMENT EXPENSES	184,704	147,125	350,474	324,989
INCOME (LOSS) FROM OPERATIONS	(135,076)	49,916	(721,232)	(270,390)
INTEREST EXPENSE	(20,826)	(14,999)	(41,643)	(14,999)
OTHER	5,902	2,048	11,055	2,162
INCOME (LOSS) BEFORE INCOME TAXES	(150,000)	36,965	(751,820)	(283,227)
INCOME TAX BENEFIT	(44,934)	(2,260)	(267,857)	(129,640)
NET INCOME (LOSS)	$ (105,066)	$ 39,225	$ (483,963)	$ (153,587)
INCOME (LOSS) PER COMMON SHARE:
Basic (in dollars per share)	$ (0.05)	$ 0.02	$ (0.24)	$ (0.08)
Diluted (in dollars per share)	$ (0.05)	$ 0.02	$ (0.24)	$ (0.08)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	2,018,466	2,018,753	2,018,609	2,018,544
Diluted (in shares)	2,018,466	2,018,833	2,018,609	2,018,544