CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS

6 Months Ended

Jun. 30, 2011

Notes to Financial Statements [Abstract]

CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS

3. CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS

The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents. The Company's remaining marketable securities are classified as available-for-sale. These securities are carried at fair market value, with unrealized gains and losses reported in shareholders' equity. Gains or losses on securities sold are based on the specific identification method.

Short-term investments at June 30, 2011 and December 31, 2010 consisted of the following:

	Amortized		Unrealized					Aggregate Fair
Investment Classification	Cost		Gains		(Losses)			Market Value
June 30, 2011 -
Certificates of deposit	$	6,568,143	$	441	$	(5,084	)	$	6,563,500
Corporate bonds		248,585,807		66,047		(255,776	)		248,396,078
U.S. government bonds		6,197,439		1,709		-			6,199,148
	$	261,351,389	$	68,197	$	(260,860	)	$	261,158,726
December 31, 2010 -
Certificates of deposit	$	7,167,818	$	62	$	(7,919	)	$	7,159,961
Corporate bonds		30,423,518		19,964		(642	)		30,442,840
U.S. government bonds		15,189,511		3,040		(807	)		15,191,744
	$	52,780,847	$	23,066	$	(9,368	)	$	52,794,545

All short-term investments held at June 30, 2011 will mature within one year.