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Note 8 - Long-term Debt - Summary of Long-term Debt (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Total long-term debt $ 12,909,310 $ 13,653,007
Less: Current maturities (857,590) (747,324)
Long-term debt 12,051,720 12,905,683
MesoScribe Technologies, Inc [Member]    
Contingent Liability 200,000 300,000
Loan [Member]    
Secured debt 10,043,802 10,387,500
Secured debt 10,043,802 10,387,500
HSBC Bank Mortgage Loan [Member]    
Secured debt 2,665,508 2,965,507
Secured debt $ 2,665,508 $ 2,965,507