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Consolidated Statements of Operations and Comprehensive Income (Unaudited) (USD $)
 3 Months Ended 9 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Mar. 31, 2012
Consolidated Statements Of Operations And Comprehensive Income        
Product sales, net $ 2,846,718 $ 2,775,486 $ 8,654,553 $ 8,180,749
Cost of sales 1,522,901 1,895,724 4,887,104 5,374,593
Gross margin 1,323,817 879,762 3,767,449 2,806,156
Operating expenses:        
Selling, general and administrative 1,042,067 1,141,366 3,042,889 3,020,869
New product development 216,626 236,643 693,394 795,894
Amortization of intangibles 8,217 8,217 24,651 24,651
Loss on sale of property and equipment (1,026) 0 (2,273)   
Total costs and expenses 1,267,936 1,386,226 3,763,207 3,841,414
Operating income (loss) 55,881 (506,464) 4,242 (1,035,258)
Other income (expense):        
Interest expense (50,951) (21,750) (96,007) (66,920)
Interest expense - debt costs (2,132) (832) (3,882) (2,448)
Change in fair value of warrant liability 222,766 0 488,102 0
Other income, net (8,470) 10,061 66,632 43,895
Total other income (expense), net 161,213 (12,521) 454,845 (25,473)
Net income (loss) 217,094 (518,985) 459,087 (1,060,731)
Income (loss) per common share (basic) $ 0.02 $ (0.05) $ 0.04 $ (0.11)
Number of shares used in per share calculation (basic) 11,883,042 9,767,640 11,818,408 9,758,233
Income (loss) per common share (diluted) $ 0.02 $ (0.05) $ 0.04 $ (0.11)
Number of shares used in per share calculation (diluted) 12,717,742 9,767,640 12,671,472 9,758,233
Foreign currency translation adjustment (269) 9,883 225 31,017
Comprehensive income (loss) $ 216,825 $ (509,102) $ 459,312 $ (1,029,714)