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Note 16 - Segment Reporting (Details) - Summary of Valuation and Qualifying Accounts (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Allowance for Doubtful Accounts [Member] |  |  |
Valuation Allowance [Line Items] |  |  |
Balance at beginning year | $ 78,970 | $ 62,415 | $ 65,000
Charged to (recovered) costs and expenses | 17,256 | 16,555 | (2,585)
Balance at end of year | 96,226 | 78,970 | 62,415
Valuation Allowance of Deferred Tax Assets [Member] |  |  |
Valuation Allowance [Line Items] |  |  |
Balance at beginning year |  |  | 3,655,070
Charged to (recovered) costs and expenses |  |  | $ (3,655,070)

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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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