Stock-Based Awards (Details 2) - Stock Incentive Plan 2006 [Member] - USD ($)		12 Months Ended
		Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Available for grant		70,232
Stock Unit Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Unvested		121,625		138,975		137,475
Number of Shares, Granted		44,950		44,575		56,500
Number of Shares, Converted to common stock		(55,111)	[1]	(61,925)	[1]	(50,350)
Number of Shares Forfeited/expired		0		0		(4,650)
Number of Shares, Unvested		111,464		121,625		138,975
Number of Shares, Available for grant		70,232
Weighted Average Remaining Contractual Life, Outstanding & Unvested		2 years 8 months 12 days
Aggregate Intrinsic Value, Unvested	[2],[3]	$ 1,130,245		$ 1,842,619		$ 2,041,543	$ 1,477,856
Aggregate Intrinsic Value, Converted to common stock	[2],[3]	$ 824,215		$ 922,330		$ 577,321

[1] Includes 15,297 shares in 2015, 9,879 shares in 2014, 13,362 shares in 2013, and 9,619 shares in 2012 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 $10.14, $15.15, $14.69, and $10.75 for the years ended December 31, 2015, 2014, 2013 and 2012, respectively. For value on the converted stock, the price used is the price on the vesting date.

[3] The fair value of the options using the Black-Scholes model is $1.91 per share. This was calculated using an exercise price of $10.21, 10 year terms with an estimated 6.5 year expiration based on vesting schedule, stock price volatility of 36, interest rate of 2.2% and dividend yield of 6%.