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Note 8 - Debt - Long-term Debt (Details) - USD ($)
Jun. 30, 2017
Dec. 31, 2016
Total Loan, net $ 89,164,000 $ 5,394,000
Long-term Debt 89,164,000 5,394,000
Current maturities of long-term debt 1,039,000 4,648,000
Less current deferred loan costs (803,000)
Less current maturities of long-term debt, net (1,039,000) (3,845,000)
Total long-term debt 88,125,000 1,549,000
Tealstone Construction [Member]    
Notes and deferred payments to sellers, Tealstone acquisition 11,909,000
Notes Payable for Transportation and Construction Equipment [Member]    
Notes and deferred payments to sellers, Tealstone acquisition 2,124,000 2,665,000
Senior Secured Term Loans [Member]    
Loan 85,000,000 3,532
Less deferred loan costs and discount (9,869,000) (803,000)
Total Loan, net 75,131,000 2,729,000
Long-term Debt $ 75,131,000 $ 2,729,000