Equity And Stock-Based Compensation (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Equity And Stock-Based Compensation [Line Items]
Grant date fair value of options vesting	$ 77,000	$ 89,000	$ 130,000	$ 169,000
Unrecognized estimated compensation cost related to non-vested stock options granted	241,000		241,000
Recognition period of unrecognized compensation cost			2 years 1 month 28 days
Options exercised			50,000	95,000
Realized value of option exercised			99,500	136,000
Cash received from exercise of stock options			200,500	308,000
Intrinsic unrealized value of all options outstanding, vested and expected to vest	372,000		372,000
Percentage of option currently exercisable			92.80%
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			5 years 2 months 9 days		5 years 3 months 26 days
Weighted average remaining contractual life of the exercisable options outstanding			3 years 11 months 27 days		4 years 3 months 11 days
Class A [Member]
Equity And Stock-Based Compensation [Line Items]
Stocks granted			217,890	155,925
Compensation expense	188,000	238,000	376,000	476,000
Options granted			50,000	40,000	206,000
Options exercised			125,000		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
Realized value of option exercised			$ 124,000
In the money shares exercise of options, net			53,136
Market price per share			$ 5.66
Exercise price per share			$ 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