Note 11 - Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
Operating Lease, Right-of-Use Asset	$ 5,328	$ 5,700
Current portion of operating lease liabilities	1,400
Non-current portion of operating lease liabilities	3,928
Operating Lease, Liability, Total	$ 5,328	$ 5,700
Weighted average remaining lease term—operating leases (in years) (Year)	2 years 36 days
Weighted average discount rate—operating leases	8.90%

Present value of lessee's discounted obligation for lease payments from operating lease.

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-Name Accounting Standards Codification
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-Section 45
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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Amount of lessee's right to use underlying asset under operating lease.

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

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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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