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CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited) (USD $)
In Thousands, except Share data
Total
Common Stock [Member]
Treasury Stock [Member]
Additional Paid in Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2010 $ 250,429 $ 164 $ 0 $ 198,849 $ 51,553 $ (137)
Balance (in shares) at Dec. 31, 2010   16,468 (3)      
Net income attributable to Sterling common stockholders 4,255 0 0 0 4,255 0
Other comprehensive income 140 0 0 0 0 140
Change in unrealized gain (loss) on available-for-sale securities, net of deferred tax 122          
Purchases of treasury shares (1,841) 0 (1,841) 0 0 0
Purchases of treasury shares (in shares)   0 (139)      
Cancellation of treasury shares 0 0 479 (479) 0 0
Cancellation of treasury shares (in shares)   (38) 38      
Stock issued upon option & warrant exercises 122 1 0 121 0 0
Stock issued upon option & warrant exercises (in shares)   74 0      
Issuance and amortization of restricted stock 233 0 0 233 0 0
Issuance and amortization of restricted stock (in shares)   43 0      
Stock based compensation expense 25 0 0 25 0 0
Balance at Jun. 30, 2011 $ 253,363 $ 165 $ (1,362) $ 198,749 $ 55,808 $ 3
Balance (in shares) at Jun. 30, 2011   16,547 (104)