Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Fair Value Measurement (Details Textual)

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Note 11 - Fair Value Measurement (Details Textual) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jul. 09, 2019
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Asset Impairment Charges, Total   $ 6,568,000 $ 1,543,000 $ 8,427,000 $ 3,888,000  
Real Estate Owned, Amount of Loss at Acquisition   $ 202,000 $ 99,000 224,000 $ 353,000  
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Foreclosure       $ 300,000   $ 360,000
Subsequent Event [Member]            
Gains (Losses) on Sales of Other Real Estate $ (2,000)