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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)
In Thousands, except Share data
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Total Shareholders' Equity [Member]
Non-controlling Interests [Member]
Beginning Balance at Dec. 31, 2010 $ 116,383 $ 139 $ 45,570 $ 89,876 $ (31,628) $ 103,957 $ 12,426
Balance, shares at Dec. 31, 2010   13,893,000     (2,215,000)    
Proceeds from exercise of stock options, shares 375,080 139,000          
Net tax benefit from exercise of stock options 217   217     217  
Issuance of restricted stock   160,000          
Cancellation of restricted stock   (18,000)          
Compensation expense - restricted stock 2,032   2,032     2,032  
Transfer of compensation liability for certain stock issued pursuant to long-term incentive plans 199   199     199  
Purchase of business 8,096           8,096
Acquisition of noncontrolling interests (13,083)   (11,885)     (11,885) (1,198)
Settlement of purchase price (3,835)           (3,835)
Purchase and retirement of treasury stock (4,656)     (4,656)   (4,656)  
Purchase and retirement of treasury stock, shares   (255,000)          
Distributions to noncontrolling interest partners (9,767)           (9,767)
Cash dividends to shareholders (3,789)     (3,789)   (3,789)  
Net income 29,783     20,974   20,974 8,809
Ending Balance at Dec. 31, 2011 121,580 139 36,133 102,405 (31,628) 107,049 14,531
Ending Balance, shares at Dec. 31, 2011   13,919,000     (2,215,000)    
Proceeds from exercise of stock options 22 2 20     22  
Proceeds from exercise of stock options, shares 272,750 130,000          
Net tax benefit from exercise of stock options 1,209   1,209     1,209  
Issuance of restricted stock   81,000          
Compensation expense - restricted stock 2,102   2,102     2,102  
Transfer of compensation liability for certain stock issued pursuant to long-term incentive plans 135   135     135  
Purchase of business 2,892           2,892
Acquisition of noncontrolling interests (1,199)   (955)     (955) (244)
Contribution of noncontrolling interest partners 49           49
Transfer of losses from noncontrolling interests     (1,155)     (1,155) 1,155
Distributions to noncontrolling interest partners (9,332)           (9,332)
Cash dividends to shareholders (9,017)     (9,017)   (9,017)  
Net income 26,217     17,933   17,933 8,285
Ending Balance at Dec. 31, 2012 134,659 141 37,489 111,321 (31,628) 117,323 17,336
Ending Balance, shares at Dec. 31, 2012   14,130,000     (2,215,000)    
Proceeds from exercise of stock options 47 2 45     47  
Proceeds from exercise of stock options, shares 879,391 17,000          
Net tax benefit from exercise of stock options 695   695     695  
Issuance of restricted stock   175,000          
Cancellation of restricted stock   (6,000)          
Compensation expense - restricted stock 2,743   2,743     2,743  
Transfer of compensation liability for certain stock issued pursuant to long-term incentive plans 248   248     248  
Purchase of business 10,541           10,541
Acquisition of noncontrolling interests (806)   (651)     (651) (155)
Reclass to redeemable non-controlling interests (4,104)           (4,104)
Distributions to noncontrolling interest partners (9,164)           (9,164)
Cash dividends to shareholders (4,838)     (4,838)   (4,838)  
Net income 20,996     12,723   12,723 8,273
Ending Balance at Dec. 31, 2013 $ 151,017 $ 143 $ 40,569 $ 119,206 $ (31,628) $ 128,290 $ 22,727
Ending Balance, shares at Dec. 31, 2013   14,316,000     (2,215,000)