XML 36 R25.htm IDEA: XBRL DOCUMENT v3.19.1
Note 2 - Investment Securities (Details Textual) - USD ($)
1 Months Ended 3 Months Ended
Sep. 30, 2018
Mar. 31, 2019
Mar. 31, 2018
Available-for-Sale, Securities in Unrealized Loss Positions, Depreciation from Amortized Cost Percentage   2.00%  
Other-than-temporary Impairment Loss, Debt Securities, Available-for-sale, Total   $ 0  
Debt Securities, Available-for-sale, Realized Loss   86,000 $ 6,000
Debt Securities, Time Deposits, Realized Loss   11,000  
Debt Securities, Available-for-sale, Realized Gain     $ 7,000
Investment, Number of Shares Acquired 90,000    
Investment Ownership Percentage 5.00%    
Payments to Acquire Other Investments $ 1,900,000    
Equity Securities, FV-NI, Unrealized Gain   131,000  
Equity Securities, FV-NI   $ 1,800,000