Stock-Based Compensation; Changes in Equity (Details 2) (USD $)	3 Months Ended
	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Options Outstanding (in shares)	214,000
Weighted Average, Options Outstanding (in dollars per share)	$ 5.20
Remaining Life, Options Outstanding	1 year 9 months 18 days
Intrinsic Value, Options Outstanding (in dollars)	$ 34,515
Shares, Options Vested (in shares)	133,600
Weighted Average, Options Vested (in dollars per share)	$ 5.08
Remaining Life, Option Vested	1 year 4 months 24 days
Intrinsic Value, Options Vested (in dollars)	34,515
Stock Options By Grant Date Dec 2005 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Options Outstanding (in shares)	29,500
Weighted Average, Options Outstanding (in dollars per share)	$ 2.88
Remaining Life, Options Outstanding	9 months 18 days
Intrinsic Value, Options Outstanding (in dollars)	34,515
Shares, Options Vested (in shares)	29,500
Weighted Average, Options Vested (in dollars per share)	$ 2.88
Remaining Life, Option Vested	9 months 18 days
Intrinsic Value, Options Vested (in dollars)	34,515
Stock Options By Grant Date Dec 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Options Outstanding (in shares)	64,500
Weighted Average, Options Outstanding (in dollars per share)	$ 6.16
Remaining Life, Options Outstanding	9 months 18 days
Intrinsic Value, Options Outstanding (in dollars)	0
Shares, Options Vested (in shares)	54,500
Weighted Average, Options Vested (in dollars per share)	$ 6.08
Remaining Life, Option Vested	9 months 18 days
Intrinsic Value, Options Vested (in dollars)	0
Stock Options By Grant Date Jan 2011 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Options Outstanding (in shares)	6,000
Weighted Average, Options Outstanding (in dollars per share)	$ 5.96
Remaining Life, Options Outstanding	9 months 18 days
Intrinsic Value, Options Outstanding (in dollars)	0
Shares, Options Vested (in shares)	6,000
Weighted Average, Options Vested (in dollars per share)	$ 5.96
Remaining Life, Option Vested	9 months 18 days
Intrinsic Value, Options Vested (in dollars)	0
Stock Options By Grant Date Nov 2012 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Options Outstanding (in shares)	104,000
Weighted Average, Options Outstanding (in dollars per share)	$ 5.17
Remaining Life, Options Outstanding	2 years 8 months 12 days
Intrinsic Value, Options Outstanding (in dollars)	0
Shares, Options Vested (in shares)	41,600
Weighted Average, Options Vested (in dollars per share)	$ 5.17
Remaining Life, Option Vested	2 years 8 months 12 days
Intrinsic Value, Options Vested (in dollars)	0
Stock Options By Grant Date Nov 2013 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Options Outstanding (in shares)	10,000
Weighted Average, Options Outstanding (in dollars per share)	$ 5.75
Remaining Life, Options Outstanding	3 years 7 months 6 days
Intrinsic Value, Options Outstanding (in dollars)	0
Shares, Options Vested (in shares)	2,000
Weighted Average, Options Vested (in dollars per share)	$ 5.75
Remaining Life, Option Vested	3 years 7 months 6 days
Intrinsic Value, Options Vested (in dollars)	$ 0