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CONDENSED STATEMENTS OF OPERATIONS - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
CONDENSED STATEMENTS OF OPERATIONS        
NET SALES $ 4,653,548 $ 4,924,747 $ 8,251,437 $ 9,389,323
COST OF GOODS SOLD 3,013,806 3,213,875 5,511,020 5,919,298
GROSS PROFIT 1,639,742 1,710,872 2,740,417 3,470,025
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES 1,252,521 1,240,413 2,668,118 2,541,063
RESEARCH AND DEVELOPMENT EXPENSES 192,539 177,479 348,383 320,809
INCOME (LOSS) FROM OPERATIONS 194,682 292,980 (276,084) 608,153
OTHER 1,510 1,552 3,206 3,510
INCOME (LOSS) BEFORE INCOME TAXES 196,192 294,532 (272,878) 611,663
INCOME TAX EXPENSE (BENEFIT) 168,468 96,100 (71,655) 208,316
NET INCOME (LOSS) $ 27,724 $ 198,432 $ (201,223) $ 403,347
EARNINGS (LOSS) PER COMMON SHARE:        
Basic (in dollars per share) $ 0.01 $ 0.10 $ (0.10) $ 0.20
Diluted (in dollars per share) $ 0.01 $ 0.10 $ (0.10) $ 0.20
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:        
Basic (in shares) 2,018,253 2,016,885 2,018,253 2,014,836
Diluted (in shares) 2,018,792 2,019,721 2,018,253 2,016,774