Note 9 - Summary of Lease Related Assets and Liabilities on Balance Sheet (Details) (Parenthetical)	3 Months Ended
Mar. 31, 2019
Assets And Liabilities Lessee [Abstract]
Finance lease remaining term	968 years
Weighted average term excluding lease with remaining term	3 years

Weighted average term excluding lease with remaining term.

No definition available.

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Balance Type:	na
Period Type:	duration