Income Taxes (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax [Line Items]
One time income tax benefits	$ 900,000
Income tax benefit on reduction of uncertain tax position liabilities	0	0	(1,602,000)
Reduction in uncertain tax position liability	0	0	1,418,000
Reduction in accrued interest and penalties			200,000
Interest expense (income)	0	0	(200,000)
Operating loss carryforwards	6,200,000
Management placed valuation allowance	1,247,000	584,000
Accumulated undistributed earnings	$ 25,200,000
Effective income tax rate	36.70%	38.30%	36.60%
Internal Revenue Service (IRS) [Member]
Income Tax [Line Items]
Effective income tax rate	35.00%