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Note 23 - Segment Reporting (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Allocated Share-based Compensation Expense $ 136,000 $ 583,000 $ 484,000 $ 1,718,000