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UNAUDITED QUARTERLY FINANCIAL DATA (Tables)
12 Months Ended
Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]  
Schedule of Quarterly Financial Information [Table Text Block]
The following tables present the quarterly information for the years ended December 31, 2013, 2012 and 2011, respectively:
 
 
 
Three Months Ended
 
 
 
March  31
 
June 30
 
September  30
 
December 31
 
Fiscal 2013:
 
 
 
 
 
 
 
 
 
 
 
 
 
Product sales
 
$
1,846,734
 
$
1,366,493
 
$
1,234,701
 
$
1,559,248
 
Gross margin
 
 
1,053,567
 
 
783,677
 
 
615,717
 
 
607,644
 
Product development expenses
 
 
266,479
 
 
271,858
 
 
290,853
 
 
325,010
 
Net operating income (loss)
 
 
326,666
 
 
23,722
 
 
(159,967)
 
 
(209,975)
 
Net income (loss)
 
 
204,310
 
 
6,452
 
 
57,336
 
 
(150,703)
 
Net income (loss) per common share:
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic
 
$
0.07
 
$
0.00
 
$
0.02
 
$
(0.05)
 
Diluted
 
$
0.07
 
$
0.00
 
$
0.02
 
$
(0.05)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fiscal 2012:
 
 
 
 
 
 
 
 
 
 
 
 
 
Product sales
 
$
1,717,109
 
$
1,175,126
 
$
1,076,749
 
$
1,420,951
 
Gross margin
 
 
1,012,568
 
 
670,518
 
 
620,958
 
 
750,215
 
Product development expenses
 
 
247,807
 
 
211,706
 
 
223,771
 
 
234,316
 
Net operating income (loss)
 
 
281,233
 
 
37,397
 
 
(86,126)
 
 
12,497
 
Net income (loss)
 
 
154,761
 
 
15,187
 
 
(63,574)
 
 
(16,862)
 
Net income (loss) per common share:
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic
 
$
0.05
 
$
0.01
 
$
(0.02)
 
$
(0.01)
 
Diluted
 
$
0.05
 
$
0.01
 
$
(0.02)
 
$
(0.01)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fiscal 2011:
 
 
 
 
 
 
 
 
 
 
 
 
 
Product sales
 
$
1,555,701
 
$
1,247,443
 
$
1,003,451
 
$
1,304,548
 
Gross margin
 
 
868,235
 
 
694,526
 
 
526,034
 
 
725,009
 
Product development expenses
 
 
472,134
 
 
672,763
 
 
304,082
 
 
271,076
 
Net operating (loss) income
 
 
(16,858)
 
 
(432,860)
 
 
(192,390)
 
 
9,382
 
Net loss
 
 
(23,113)
 
 
(258,218)
 
 
(127,649)
 
 
(530)
 
Net loss per common share:
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic
 
$
(0.01)
 
$
(0.09)
 
$
(0.04)
 
$
(0.00)
 
Diluted
 
$
(0.01)
 
$
(0.09)
 
$
(0.04)
 
$
(0.00)