Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019
Operating Lease, Right-of-Use Asset	$ 10,688	$ 9,785
Operating Lease, Liability, Total	$ 10,321	9,498
Operating Lease, Right-of-Use Asset [Member]
Prepaid Rent		$ 287

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
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Amount of lessee's right to use underlying asset under operating lease.

+ References

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Amount of asset related to consideration paid in advance for rent that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

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