Share-Based Compensation Award Activity (Details) (USD $)	3 Months Ended				3 Months Ended				1 Months Ended	3 Months Ended	1 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Feb. 27, 2013	Feb. 29, 2012	Mar. 31, 2014 Director Stock Plan [Member]	Sep. 30, 2013 Director Stock Plan [Member]	Mar. 31, 2013 Director Stock Plan [Member]	Mar. 31, 2014 Stock Options [Member]	Jul. 31, 2009 July 2009 Non-vested Stock Award [Member]	Mar. 31, 2014 July 2009 Non-vested Stock Award [Member]	Jul. 31, 2011 July 2011 Non-vested Stock Award [Member]	Mar. 31, 2014 July 2011 Non-vested Stock Award [Member]	Mar. 31, 2014 Non-Vested Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Exercised (options)	(37,500)	0
Exercised (weighted averaged exercise price)	$ 0.45
Options vested in period	24,400
Aggregate fair value of options vested in period	$ 10,000
Unrecognized compensation cost related to stock options								700,000
Weighted average period for recognition of compensation cost								2 years					7 months 6 days
Unrecognized compensation cost													0
Non-vested Stock Awards
Aggregate shares granted						2,000,000			500,000		305,000
Grant date fair value									$ 0.45		$ 1.06
Aggregate shares that vested in the period										150,000		155,100
Aggregate shares of non-vested stock forfeited										343,750		141,400
Vesting Schedule for Equity Grants Other than Options
Vesting percentage, year one					25.00%					0.00%		33.00%
Vesting percentage, year two	33.00%				25.00%					25.00%		33.00%
Vesting percentage, year three	33.00%				25.00%					25.00%		34.00%
Vesting percentage, year four										25.00%
Vesting percentage, year five										25.00%
ESPP
ESPP, number of shares authorized	2,000,000
ESPP, purchase date	13 months
ESPP, purchase price as percentage of market value	95.00%
ESPP, maximum subscription rate	10.00%
ESPP, maximum subscription amount	25,000
Shares issued during period, Employee Stock Purchase Plan			233,000	273,000
Aggregate Grant-Date Fair Value, Employee Stock Purchase Plan			30,000	50,000
Shares issued in accordance with plan termination provision	36,154	0
Other Stock Awards
Term over which grants will occur					10 years
Number of shares authorized under the plan (in shares)					600,000
Remaining shares available for grant under the plan (in shares)					360,000
Number of shares awarded annually to non-employee board members other than the non-executive chair					5,000
Number of shares awarded annually to non-executive chair of the board of directors					10,000
Aggregate shares granted						2,000,000			500,000		305,000
Number of shares awarded					0		0
Share-based compensation expense	$ 100,000	$ 200,000