Employee Benefit Plans (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Employee Benefit Plans [Line Items]
Administrative expense	$ 1,100	$ 1,700	$ 1,200
Discretionary contribution	265,000	255,000	275,000
Deferred Compensation Expense Non Qualified Plan	$ 149,000	$ 211,000	$ 184,000