Annual report pursuant to Section 13 and 15(d)

Note 11 - Employees' Benefit Plans (Details Textual)

v3.20.1
Note 11 - Employees' Benefit Plans (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 7.00%  
Defined Contribution Plan, Cost $ 884 $ 744
Deferred Compensation Liability, Current and Noncurrent, Total 226 221
Deferred Compensation Arrangement with Individual, Compensation Expense 10 11
Deferred Costs, Total 60 40
Deferred Fee Liability $ 1,310 $ 1,280
Two Years Of Service [Member] | Trust for Benefit of Employees [Member]    
Defined Benefit Plan, Funded Percentage 40.00%  
Three Years Of Service [Member] | Trust for Benefit of Employees [Member]    
Defined Benefit Plan, Funded Percentage 60.00%  
Four Years Of Service [Member] | Trust for Benefit of Employees [Member]    
Defined Benefit Plan, Funded Percentage 80.00%  
Five Years Of Service [Member] | Trust for Benefit of Employees [Member]    
Defined Benefit Plan, Funded Percentage 100.00%  
Minimum [Member]    
Defined Benefit Plan Employees Pre-tax Contributions 1.00%  
Maximum [Member]    
Defined Benefit Plan Employees Pre-tax Contributions 50.00%