CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY AND ACCUMULATED OTHER COMPREHENSIVE INCOME (USD $)	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated other comp income/(loss)	Treasury Stock
Beginning Balance at Dec. 31, 2010	$ 71,956,000	$ 16,000	$ 32,938,000	$ 42,117,000	$ 240,000	$ (3,355,000)
Beginning Balance (in shares) at Dec. 31, 2010		15,431,101
Share-based compensation to executives and directors	1,299,000		1,299,000
Share-based compensation tax benefit	709,000		709,000
Restricted shares issued to board of directors		19,084
Treasury stock purchases	(12,333,000)					(12,333,000)
Comprehensive income:
Net income	12,302,000			12,302,000
Net change in unrealized gain (loss) on investments, net	96,000				96,000
Comprehensive income	12,398,000
Ending Balance at Jun. 30, 2011	$ 74,029,000	$ 16,000	$ 34,946,000	$ 54,419,000	$ 336,000	$ (15,688,000)
Ending Balance (in shares) at Jun. 30, 2011		15,450,185