Stock-Based Awards (Details 1) (Stock Incentive Plan 2006 [Member], USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding & Unvested	137,475		119,100		94,700
Number of Shares, Granted	56,500		65,000		59,000
Number of Shares, Converted to common stock	(50,350)	[1]	(46,625)	[1]	(34,600)	[1]
Number of Shares, Cancelled	(4,650)		0		0
Number of Shares, Outstanding & Unvested	138,975		137,475		119,100
Number of Shares, Available for grant	181,581
Weighted Average Remaining Contractual Life, Outstanding & Unvested	2 years 8 months 12 days
Aggregate Intrinsic Value, Converted to common stock	$ 577,321	[2]	$ 458,211	[2]	$ 355,351	[2]
Aggregate Intrinsic Value, Outstanding & Unvested	$ 2,041,543	[2]	$ 1,477,856		$ 1,083,810		$ 776,540
Stock Unit Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted	56,500		65,000		59,000
Number of Shares, Available for grant	181,581

[1] Figure includes 13,362 shares in 2013, 9,619 shares in 2012, and 8,406 shares in 2011 withheld to cover income taxes.

[2] The aggregate intrinsic value on this table was calculated based on the closing market price of the Company’s stock. The price at year end was $14.69, $10.75, $9.10, and $8.20 for the years ended December 31, 2013, 2012, 2011 and 2010, respectively. For value on the converted stock, the price used is the price on the grant date.