Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Income Taxes [Abstract]
Income tax expense	$ 1,482,000	$ 1,935,000	$ 863,000	$ 3,179,000
Earnings before income tax	6,885,000	$ 5,662,000	$ 6,010,000	$ 9,113,000
Effective income tax rate			14.00%	35.00%
Federal statutory income tax rate			33.50%	34.00%
Recognized excess tax benefits			$ 1,127,000
Unrecognized income tax asset	379,000		379,000		$ 379,000
Tax related interest expense	0		0
Tax related penalties expense	$ 0		$ 0