Accounting For Stock-Based Compensation (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity based compensation expense	$ 97,000	$ 95,000	$ 330,000	$ 349,000
Unrecognized compensation cost related to non-vested equity based compensation	680,000		680,000
Unrecognized equity based compensation weighted average period, years			1 year 10 months 28 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity based compensation expense	62,000	60,000	192,000	190,000
Shares of common stock reserved for stock based benefits	1,030,307		1,030,307
Vesting period, years			4 years
Number of shares available for future issuance	466,203		466,203
Weighted average remaining contractual term, years			3 years 7 months 6 days
Aggregate intrinsic value for all options outstanding	149,575		149,575
Weighted average remaining contractual term for exercisable options, years			2 years 6 months 22 days
Aggregate intrinsic value of exercisable options	149,575		149,575
Proceeds from exercise of stock options			25,000	0
Stock Options [Member] | Contractual Term Seven Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration of stock options from date of grant, years			7 years
Stock Options [Member] | Contractual Term Ten Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration of stock options from date of grant, years			10 years
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity based compensation expense	10,000	13,000	34,000	43,000
Number of shares available for future issuance	153,926		153,926
Maximum contribution per plan year			6,500
Employees can purchase stock at the percentage rate of the lower of the market price on the first or last day of the offering period			85.00%
Share issuances for compensation purposes, shares			12,656	19,759
Employee Stock Purchase Plan [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payroll deduction for employee stock purchase plan percentage			1.00%
Employee Stock Purchase Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payroll deduction for employee stock purchase plan percentage			10.00%
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity based compensation expense	25,000	22,000	74,000	75,000
Vesting period, years			4 years
Aggregate intrinsic value for all options outstanding	241,000		241,000
Restricted stock units to common stock ratio, shares entitled			1
Stock Grant Plan For Non-Employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity based compensation expense			$ 30,000	$ 41,000
Shares of common stock reserved for stock based benefits	30,000		30,000
Number of shares available for future issuance	6,000		6,000
Number of shares granted for non-employee directors upon re-election			1,000
Plan expiration date			May 19, 2018
Share issuances for compensation purposes, shares			5,000