Note 5 - Fair Value Consideration (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2017 |
|
| Financial Instruments, Owned, at Fair Value | $ 0 | $ 0 |
| Assets, Fair Value Adjustment | $ 3,500 |
| X | ||||||||||
- Definition Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties. No definition available.
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| X | ||||||||||
- Definition The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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