Note 8 - Notes Payable - Notes Due to Related Parties (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Total notes payable	$ 12,642,065	$ 4,004,492
Less current portion	1,555,663	352,727
Notes payable	11,086,402	3,651,765
CAD Enterprises, Inc. [Member]
Notes payable, related parties	9,000,000
First Francis [Member] \| Promissory Note 1 [Member]
Notes payable, related parties	1,485,061	1,639,206
First Francis [Member] \| Promissory Note 2 [Member]
Notes payable, related parties	$ 2,157,004	$ 2,365,286

Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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