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Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified | Total | Common Stock | Paid-in capital | Retained earnings | Accumulated other comprehensive loss
--- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2010 | $ 127,606 | $ 121 | $ 131,350 | $ 1,312 | $ (5,177)
Beginning Balance (in shares) at Dec. 31, 2010 |  | 12,065,000 |  |  |
Comprehensive income: |  |  |  |  |
Net Income | 14,066 |  |  | 14,066 |
Translation adjustment | (704) |  |  |  | (704)
Comprehensive income | 13,362 |  |  |  |
Shares issued to directors (Note G) (in shares) |  | 21,000 |  |  |
Shares issued to directors (Note G) | 183 |  | 183 |  |
Stock compensation expense (Note G) | 2,612 |  | 2,612 |  |
Issuance of common stock for acquisition of business (in shares) |  | 256,000 |  |  |
Issuance of common stock for acquisition of business | 3,100 | 3 | 3,097 |  |
Exercise of stock options (in shares) | 123,500 | 89,000 |  |  |
Exercise of stock options | 225 |  | 225 |  |
Dividends (Note G) | (913) |  |  | (913) |
Ending Balance at Dec. 31, 2011 | 146,175 | 124 | 137,467 | 14,465 | (5,881)
Ending Balance (in shares) at Dec. 31, 2011 |  | 12,431,000 |  |  |
Comprehensive income: |  |  |  |  |
Net Income | 20,947 |  |  | 20,947 |
Translation adjustment | 3,077 |  |  |  | 3,077
Derivative fair value adjustment (Note F) | (272) |  |  |  | (272)
Effect of retirement benefit obligations | (1,160) |  |  |  | (1,160)
Comprehensive income | 22,592 |  |  |  |
Shares issued to directors (Note G) (in shares) |  | 23,000 |  |  |
Shares issued to directors (Note G) | 267 |  | 267 |  |
Stock compensation expense (Note G) | 2,526 |  | 2,526 |  |
Issuance of common stock for acquisition of business (in shares) |  | 144,000 |  |  |
Issuance of common stock for acquisition of business | 1,507 | 1 | 1,506 |  |
Tax benefit (expense) on stock options, net | 150 |  | 150 |  |
Exercise of stock options (in shares) | 199,823 | 156,000 |  |  |
Exercise of stock options | 576 | 3 | 573 |  |
Dividends (Note G) | (1,563) |  |  | (1,563) |
Ending Balance at Dec. 31, 2012 | 172,230 | 128 | 142,489 | 33,849 | (4,236)
Ending Balance (in shares) at Dec. 31, 2012 |  | 12,754,000 |  |  |
Comprehensive income: |  |  |  |  |
Net Income | 9,281 |  |  | 9,281 |
Translation adjustment | (140) |  |  |  | (140)
Derivative fair value adjustment (Note F) | 241 |  |  |  | 241
Effect of retirement benefit obligations | 415 |  |  |  | 415
Comprehensive income | 9,797 |  |  |  |
Shares issued to directors (Note G) (in shares) |  | 21,000 |  |  |
Shares issued to directors (Note G) | 277 |  | 277 |  |
Stock compensation expense (Note G) | 2,604 |  | 2,604 |  |
Reduction of tax benefit from stock options, net | (310) |  | (310) |  |
Exercise of stock options (in shares) | 247,827 | 248,000 |  |  |
Exercise of stock options | 1,215 | 2 | 1,213 |  |
Treasury Stock Repurchase (in shares) |  | (246,000) |  |  |
Treasury Stock Repurchase | (3,229) | (2) |  | (3,227) |
Dividends (Note G) | (1,679) |  |  | (1,679) |
Ending Balance at Dec. 31, 2013 | $ 180,905 | $ 128 | $ 146,273 | $ 38,224 | $ (3,720)
Ending Balance (in shares) at Dec. 31, 2013 |  | 12,777,000 |  |  |

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