Condensed Consolidated Statements Of Shareholders' Equity (USD $)	Class A [Member] Common Stock [Member] USD ($)	Class A [Member]	Class B [Member] Common Stock [Member] USD ($)	Class B [Member]	Additional Paid-In Capital [Member] USD ($)	Retained Earnings [Member] USD ($)	Treasury Stock [Member] USD ($)	Total USD ($)
Balance at Dec. 31, 2011	$ 429,166		$ 10,307		$ 263,561,890	$ 18,278,652	$ (10,764,822)	$ 271,515,193
Balance, shares at Dec. 31, 2011	42,916,668	41,737,493	1,030,700	1,030,700			(1,179,175)
Issuance of Class A common stock	122,092				146,387,912			146,510,004
Issuance of Class A common stock, shares	12,209,167
Cost to issue equity					(11,262,499)			(11,262,499)
Conversion of Class B common stock to Class A common stock	10,307		(10,307)
Conversion of Class B common stock to Class A common stock, shares	1,030,700		(1,030,700)
Class A common stock issuable to Board members and advisors, Shares					11,020			11,020
Class A common stock issuable to Board members and advisors
Stock options expense					(5,524)			(5,524)
Stock options exercised	2,955				3,541,065			3,544,020
Stock options exercised, shares	295,500
Restricted stock vested					10,970			10,970
Restricted stock vested, shares
Class B dividends declared						(27,643)		(27,643)
Current period net income						3,800,576		3,800,576
Balance at Mar. 31, 2012	$ 564,520				$ 402,244,834	$ 22,051,585	$ (10,764,822)	$ 414,096,117
Balance, shares at Mar. 31, 2012	56,452,035	55,272,860		0			(1,179,175)