XML 61 R88.htm IDEA: XBRL DOCUMENT v3.20.1
Note 13 - Employee Benefit Plans (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 1998
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Defined Contribution Plan, Employer Discretionary Contribution Amount   $ 574,000 $ 520,000 $ 478,000
Stock Purchased by Employee Stock Ownership Plan, Shares 61,501      
Employee Stock Ownership Plan (ESOP) Loan Payments From ESOP Loan Term 10 years      
Employee Stock Ownership Plan (ESOP), Compensation Expense   $ 0 $ 0 $ 0
Employee Stock Ownership Plan (ESOP), Number of Allocated Shares   52,200 52,455