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           Note 10 - Goodwill (Detail) (USD $) 
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           Jun. 30, 2012 
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           Oct. 04, 2011 
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           Jun. 30, 2011 
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|---|---|---|---|
| Business Acquisition, Purchase Price Allocation, Goodwill Amount | $ 9,653,330 | $ 214,044 | $ 9,439,285 | 
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           VLS [Member] 
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| Business Acquisition, Purchase Price Allocation, Goodwill Amount | $ 214,044 | 
| X | ||||||||||
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- Definition 
          Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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