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Note 12 - Leases - Components of Lease Expense and Other Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019
Operating Lease Cost (leases with a total term greater than 12 months)	$ 1,071
Short-term Lease Cost (leases with a term of 12 months or less)	124
Variable Lease Cost	171
Total Lease Cost	1,366
Operating Lease - Operating Cash Flows (Fixed Payments)	1,051
Operating Lease - Operating Cash Flows (Liability Reduction)	948
New ROU Assets - Operating Leases	$ 4,889
Weighted Average Discount Rate	5.24%	5.06%
Weighted Average Remaining Lease Term (Year)	8 years 200 days	5 years 189 days

X

- Definition

The amount of increase (decrease) of lessee's right to use underlying asset under operating lease.

+ References

No definition available.

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X

- Definition

Amount of lease cost recognized by lessee for lease contract.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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- Definition

Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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- Definition

Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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