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Unaudited Quarterly Financial Data (Details) (USD $)
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3 Months Ended | 12 Months Ended | |||||||||
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2011
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Sep. 30, 2011
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Jun. 30, 2011
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Mar. 31, 2011
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Dec. 31, 2010
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Sep. 30, 2010
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Jun. 30, 2012
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Jun. 30, 2011
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Jun. 30, 2010
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| Quarterly financial data [Abstract] | |||||||||||
| Net revenues | $ 4,481,000 | $ 4,908,000 | $ 4,775,000 | $ 4,859,000 | $ 5,378,000 | $ 5,165,000 | $ 5,860,000 | $ 6,997,000 | $ 19,023,000 | $ 23,400,000 | $ 23,088,000 |
| Gross Profit | 1,449,000 | 1,181,000 | 1,704,000 | 1,999,000 | 1,866,000 | 2,020,000 | 2,356,000 | 2,595,000 | 6,333,000 | 8,837,000 | 7,445,000 |
| Net income loss | $ (738,000) | $ (1,762,000) | $ (1,278,000) | $ (1,208,000) | $ (1,168,000) | $ (845,000) | $ (486,000) | $ (68,000) | $ (4,986,000) | $ (2,567,000) | $ (5,193,000) |
| Per share data (Abstract) | |||||||||||
| Basic and diluted net loss per common share (in dollars per share) | $ (0.04) | $ (0.11) | $ (0.08) | $ (0.07) | $ (0.07) | $ (0.06) | $ (0.03) | $ 0 | $ (0.3) | $ (0.17) | $ (0.37) |
| Shares used in computing per share data (in shares) | 16,408,599 | 16,406,366 | 16,378,033 | 16,363,033 | 16,346,366 | 14,846,366 | 14,048,649 | 14,230,271 | 16,389,008 | 14,816,163 | 14,023,240 |