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Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Taxes [Line Items]      
Deferred Tax Liabilities, Gross   $ 475,000 $ 705,000
Current Income Tax Expense (Benefit)   $ 227,000 $ 157,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent   35.00%  
Increase (Decrease) in Income Taxes   $ 230,000  
Scenario, Plan [Member]      
Income Taxes [Line Items]      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00%