XML 63 R25.htm IDEA: XBRL DOCUMENT v3.20.1
Note 2 - Fair Value of Financial Instruments (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2017
Selling Costs, Percentage 10.00%      
Impaired Financing Receivable, Related Allowance $ 854,000   $ 807,000  
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down       $ 0
Other Real Estate, Ending Balance 0   0  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Write-down or Reserve, Amount 0 $ 0    
Collateral Dependent Loans [Member]        
Impaired Financing Receivable, with Related Allowance, Recorded Investment 2,090,000   7,010,000  
Impaired Financing Receivable, Related Allowance 854,000   807,000  
Financing Receivable, Credit Loss, Expense (Reversal) 854,000 163,000 807,000  
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down $ 0 $ 0 $ 0