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Condensed Consolidated Statements of Cash Flows (Unaudited) (Parentheticals) - Tealstone Construction [Member] - shares
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Equity Consideration for Tealstone Acquisition [Member]    
Shares issued for Tealstone acquisition (in shares) 1,882,058
Warrants Issued to Lenders [Member]    
Warrants issued to lenders (in shares) 1,000,000