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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - 3 months ended Mar. 31, 2016 - USD ($)
$ in Thousands
Common Stock [Member]
Common Class A [Member]
Common Stock [Member]
Common Class B [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Balance at Dec. 31, 2015 $ 170 $ 24 $ 139,968 $ (3,408) $ (17,544) $ 82,950 $ 202,160
Net income           3,797 3,797
Other comprehensive income (loss)         1,382   1,382
Exercise of stock options     (27) 59     32
Stock-based employee compensation cost     304       304
Issuance of restricted shares     (1,965) 1,390     (575)
Balance at Mar. 31, 2016 $ 170 $ 24 $ 138,280 $ (1,959) $ (16,162) $ 86,747 $ 207,100