Income Taxes (Details Textual)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Income Taxes (Textual)
Statutory income tax rate	21.00%	34.00%
Description of deferred tax assets and liabilities	For deferred tax assets and liabilities, amounts were remeasured based on the rates expected to reverse in the future, which was 21 percent. As noted above, the Company realized a one-time tax credit due to the TCJA of $1.7 million in 2017.
Maximum [Member]
Income Taxes (Textual)
US Federal corporate tax rate	35.00%
Minimum [Member]
Income Taxes (Textual)
US Federal corporate tax rate	21.00%

Description of deferred tax assets and liabilities

For deferred tax assets and liabilities, amounts were remeasured based on the rates expected to reverse in the future, which was 21 percent. As noted above, the Company realized a one-time tax credit due to the TCJA of $1.7 million in 2017.

US Federal corporate tax rate

21.00%