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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Class A [Member] | Class B [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive (Loss) Income [Member] | Common Stock [Member] Class A [Member] | Common Stock [Member] Class B [Member] | Additional Paid-in Capital [Member]
--- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2012 | $ 215,362 |  |  | $ 195,183 | $ (1,427) | $ 217 | $ 937 | $ 20,452
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Cash dividends declared on Class A common stock | (522) |  |  | (522) |  |  |  |
Cash dividends declared on Class B common stock | (2,576) |  |  | (2,576) |  |  |  |
Issuance of restricted common stock | 0 |  |  |  |  |  | 16 | (16)
Forfeiture of restricted common stock | 0 |  |  |  |  |  | (2) | 2
Repurchase/retirement of Class B common stock | (3,356) |  | $ (10,000) |  |  |  | (18) | (3,338)
Foreign currency translation adjustment | 977 |  |  |  | 977 |  |  |
Unrealized holding gains on marketable securities arising during the year net of taxes | 87 |  |  |  | 87 |  |  |
Reclassification adjustment for gain (loss) on sale of marketable securities included in net earnings, net of tax of $-, $- and ($37) | (61) |  |  |  | (61) |  |  |
Increase (Reduction) in APIC pool associated with tax benefit (deficiencies) related to restricted stock awards | (65) |  |  |  |  |  |  | (65)
Stock-based compensation expense | 1,879 |  |  |  |  |  |  | 1,879
Change in unfunded SERP liability, net of taxes | 1,069 |  |  |  | 1,069 |  |  |
Net earnings | 15,908 | $ 2,868 | 13,040 | 15,908 |  |  |  |
Balance at Dec. 31, 2013 | 228,702 |  |  | 207,993 | 645 | 217 | 933 | 18,914
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Cash dividends declared on Class A common stock | (522) |  |  | (522) |  |  |  |
Cash dividends declared on Class B common stock | (2,665) |  |  | (2,665) |  |  |  |
Issuance of restricted common stock | 0 |  |  |  |  |  | 38 | (38)
Forfeiture of restricted common stock | 0 |  |  |  |  |  | (2) | 2
Foreign currency translation adjustment | (11,255) |  |  |  | (11,255) |  |  |
Unrealized holding gains on marketable securities arising during the year net of taxes | 147 |  |  |  | 147 |  |  |
Reclassification adjustment for gain (loss) on sale of marketable securities included in net earnings, net of tax of $-, $- and ($37) | 0 |  |  |  |  |  |  |
Increase (Reduction) in APIC pool associated with tax benefit (deficiencies) related to restricted stock awards | 31 |  |  |  |  |  |  | 31
Stock-based compensation expense | 2,717 |  |  |  |  |  |  | 2,717
Change in unfunded SERP liability, net of taxes | (1,485) |  |  |  | (1,485) |  |  |
Net earnings | 8,603 | 1,492 | 7,111 | 8,603 |  |  |  |
Balance at Dec. 31, 2014 | 224,273 |  |  | 213,409 | (11,948) | 217 | 969 | 21,626
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Cash dividends declared on Class A common stock | (522) |  |  | (522) |  |  |  |
Cash dividends declared on Class B common stock | (2,713) |  |  | (2,713) |  |  |  |
Issuance of restricted common stock | 0 |  |  |  |  |  | 8 | (8)
Forfeiture of restricted common stock | 0 |  |  |  |  |  | (7) | 7
Foreign currency translation adjustment | (9,954) |  |  |  | (9,954) |  |  |
Unrealized holding gains on marketable securities arising during the year net of taxes | 5 |  |  |  | 5 |  |  |
Reclassification adjustment for gain (loss) on sale of marketable securities included in net earnings, net of tax of $-, $- and ($37) | 0 |  |  |  |  |  |  |
Increase (Reduction) in APIC pool associated with tax benefit (deficiencies) related to restricted stock awards | 0 |  |  |  |  |  |  | 0
Stock-based compensation expense | 2,815 |  |  |  |  |  |  | 2,815
Change in unfunded SERP liability, net of taxes | 21 |  |  |  | 21 |  |  |
Net earnings | 19,197 | $ 3,331 | $ 15,866 | 19,197 |  |  |  |
Balance at Dec. 31, 2015 | $ 233,122 |  |  | $ 229,371 | $ (21,876) | $ 217 | $ 970 | $ 24,440

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