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Note 23 - Business Acquisitions (Details) - Summary of Estimated Fair Values of PEC’s Assets Acquired and Liabilities Acquired (USD $)
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Dec. 31, 2013
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Apr. 30, 2012
Power Engineers Collaborative [Member]
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| Business Combination, Separately Recognized Transactions [Line Items] | ||
| Accounts receivable | $ 829,744 | |
| Other current assets | 134,915 | |
| Work-in-progress | 594,848 | |
| Property and equipment | 78,400 | |
| Intangible assets | 797,189 | |
| Other assets | 8,198 | |
| Total identifiable assets acquired | 2,443,294 | |
| Accounts payable and other liabilities | (94,206) | |
| Accrued expenses | 256,000 | (158,166) |
| Due to former owners | (1,020,012) | |
| Total liabilities assumed | (1,272,384) | |
| Total identifiable net assets assumed | 1,170,910 | |
| Goodwill | 214,090 | |
| Net assets acquired | $ 1,385,000 |