Stock And Stock Options (Narrative) (Details)			12 Months Ended
	Mar. 21, 2016	Feb. 01, 2008 shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($)	Oct. 25, 2000 shares
Stock Options [Line Items]
Number of shares that may be granted						7,000,000
Number of additional shares that may be granted		3,500,000
Stock Incentive Plan term			10 years
Purchase price floor of fair market value			85.00%
Weighted average fair value of options granted | $ / shares			$ 1.01	$ 2.40
Compensation expense | $			$ 17,000	$ 12,000	$ 32,000
Expected volatility			122.70%	61.70%	53.30%
Risk free interest rate			2.67%	2.53%	3.27%
Reverse stock split	0.1
Common stock, shares issued			6,097,723	6,084,241
Stock Options [Member]
Stock Options [Line Items]
Compensation expense | $			$ 3,000	$ 12,000	$ 32,000
Directors And CEO [Member]
Stock Options [Line Items]
Compensation expense | $			$ 14,000
Common stock, shares issued			12,641
Minimum [Member]
Stock Options [Line Items]
Option life remaining			3 months 18 days	3 months 18 days	1 month 6 days
Maximum [Member]
Stock Options [Line Items]
Option life remaining			4 years 9 months 18 days	4 years 9 months 18 days	4 years 9 months 18 days
Voluntary Resignation [Member]
Stock Options [Line Items]
Stock Incentive Plan exercisable period			3 months