Equity And Stock-Based Compensation (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Equity And Stock-Based Compensation [Line Items]
Grant date fair value of options vesting	$ 18,000	$ 27,000	$ 112,000	$ 197,000
Unrecognized estimated compensation cost related to non-vested stock options granted	223,000		223,000
Recognition period of unrecognized compensation cost			2 years 15 days
Intrinsic unrealized value of all options outstanding, vested and expected to vest	417,000		417,000
Percentage of option currently exercisable			87.20%
Expiration period for stock options			10 years
Common Stock authorized for issuance under 2010 Stock Incentive Plan	1,250,000		1,250,000
Weighted average remaining contractual life of all options outstanding, vested, and expected to vest			4 years 11 months 27 days		5 years 3 months 26 days
Weighted average remaining contractual life of the exercisable options outstanding			3 years 9 months 7 days		4 years 3 months 11 days
Class A Nonvoting Common Stock [Member] | Executive Officer [Member]
Equity And Stock-Based Compensation [Line Items]
Stocks granted			217,890	155,925
Options exercised			62,500	95,000
Realized value of option exercised			132,000	136,000
Cash received from exercise of stock options			249,000	308,000
Class A [Member]
Equity And Stock-Based Compensation [Line Items]
Compensation expense	188,000	238,000	564,000	714,000
Options granted			50,000	90,000	206,000
Options exercised			137,500		136,000
Class B [Member]
Equity And Stock-Based Compensation [Line Items]
Options granted
Incremental Shares Issued [Member]
Equity And Stock-Based Compensation [Line Items]
Options exercised			75,000	41,000
Realized value of option exercised			$ 124,000	$ 103,000
In the money shares exercise of options, net			53,136	15,822
Market price per share			$ 5.66	$ 6.53
Exercise price per share			$ 4.01	$ 4.01
Minimum [Member]
Equity And Stock-Based Compensation [Line Items]
Vesting period of stock options			0 years
Maximum [Member]
Equity And Stock-Based Compensation [Line Items]
Vesting period of stock options			4 years