Accounting for Stock-Based Compensation (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Accounting for Stock-Based Compensation
Options exercised (in shares)	7,500	0	157,500	0
Valuation Assumptions
Weighted average grant date fair value (in dollars per share)	$ 2.05	$ 0.44	$ 1.79	$ 0.47
Weighted average assumptions used:
Expected dividend yield (as a percent)	0.00%	0.00%	0.00%	0.00%
Risk-free interest rate (as a percent)	1.51%	0.80%	1.46%	0.82%
Expected volatility (as a percent)	225.00%	227.00%	228.00%	225.00%
Expected life	5 years	5 years	4 years 10 months 24 days	4 years 10 months 24 days
Employees And Directors [Member]
Accounting for Stock-Based Compensation
Stock-based compensation expense	$ 89,000	$ 39,000	$ 148,000	$ 109,000
Stock options granted (in shares)	15,000	20,000	395,500	283,000