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Statement of Stockholders' Equity
 6 Months Ended
Jun. 30, 2012
Stockholders' Equity Note [Abstract]  
Statement of Stockholders' Equity
G)
Statement of Stockholders’ Equity. A statement of changes in stockholders’ equity for the six month period ended June 30, 2012 is as follows:
 
Accumulated
Retained
Additional
Other
Earnings/
Total
Common Stock
Paid-In
Comprehensive
(Accumulated
Stockholders’
Shares
Amount
Capital
Loss
Deficit)
Equity
Balance at December 31, 2011
 20,623 $ 206 $ 79,512 ($ 20 ) ($ 25,123 ) $ 54,575
Exercise of common stock options
 1,570 16 5,770 5,786
Issuance of unrestricted stock
 77 1 (1 ) -
Shares surrendered by employees to
pay taxes related to unrestricted stock
 (12 ) (37 ) (37 )
Issuance of common stock under
employee stock purchase plan
 2 12 12
Stock-based compensation expense
 278 278
Tax benefits from stock-based awards
 12,684 12,684
Dividend payment
 (25,507 ) (25,507 )
Accumulated other comprehensive loss
 20 20
Net income
 56,044 56,044
Balance at June 30, 2012
 22,260 $ 223 $ 98,218 $ - $ 5,414 $ 103,855