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Consolidated Condensed Statement of Stockholders' Equity and Comprehensive Income(Unaudited) (USD $)
In Thousands, unless otherwise specified
Common Class A [Member]
Common Class B [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Retained Earnings [Member]
Total
Balance at Dec. 31, 2011 $ 143 $ 24 $ 89,535 $ (14,445) $ 50 $ 11,748 $ 87,055
Comprehensive income:              
Net income           3,611 3,611
Other comprehensive loss         (1,963)   (1,963)
Stock-based employee compensation expense     434       434
Issuance of restricted shares     (309) 408     99
Balance at Jun. 30, 2012 $ 143 $ 24 $ 89,660 $ (14,037) $ (1,913) $ 15,359 $ 89,236