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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
 1 Months Ended 12 Months Ended
Jan. 01, 2011
Dec. 31, 2011
Nov. 27, 2010
Nov. 28, 2009
OPERATING ACTIVITIES:        
Net income (loss) $ (658) $ 16,945 $ 1,960 $ 5,691
Adjustments to reconcile net income (loss) to net cash provided by operating activities, net of effect of acquired businesses:        
Depreciation and amortization 652 5,103 5,710 7,830
Loss on disposal of property and equipment   146 266 894
Deferred rent 920 (1,956) (536) 2,101
Deferred income taxes 485 (8,739) 3,294 6,378
(Gain) loss on extinguishment of convertible debentures   (3) 669 134
Share-based compensation expenses 795 5,769 6,572 6,824
Excess tax benefits from share-based compensation   (49) (53)  
Noncash interest from discount on convertible debentures 50 232 1,177 1,457
Foreign currency exchange loss       390
Changes in operating assets and liabilities:        
Accounts receivable 3,642 (12,545) (92) 10,270
Unbilled services 7,699 12,640 (7,102) 7,738
Prepaid expenses and other assets 324 (47) 7,266 (4,705)
Accounts payable, accrued expenses, and other liabilities (6,372) 12,535 (5,510) (23,274)
Net cash provided by operating activities 7,537 30,031 13,621 21,728
INVESTING ACTIVITIES:        
Consideration relating to acquisitions, net   (844) 9,999 (15,682)
Purchase of property and equipment (347) (8,246) (4,144) (2,231)
Purchase of investments   (61,049) (59,992) (23,326)
Sale of investments 6,275 46,554 77,579  
Collections on notes receivable   64 89 89
Net cash (used in) provided by investing activities 5,928 (23,521) 23,531 (41,150)
FINANCING ACTIVITIES:        
Issuance of common stock, principally stock options exercises   620 1,010 113
Payments on notes payable (150) (334) (550) (489)
Extinguishment of convertible debentures   (21,880) (40,401) (16,501)
Tax withholding payment reimbursed by restricted shares   (1,146) (1,072) (757)
Excess tax benefits from share-based compensation   49 53  
Repurchase of common stock   (9,054) (4,473) (93)
Repurchase of treasury stock by Neuco, Inc. (17) (33) (450)  
Net cash used in financing activities (167) (31,778) (45,883) (17,727)
Effect of foreign exchange rates on cash and cash equivalents (11) (650) 143 642
Net (decrease) increase in cash and cash equivalents 13,287 (25,918) (8,588) (36,507)
Cash and cash equivalents at beginning of period 74,218 87,505 82,806 119,313
Cash and cash equivalents at end of period 87,505 61,587 74,218 82,806
Noncash investing and financing activities:        
Repurchase of shares in exchange for notes receivable by Neuco, Inc.     422 280
Notes payable issued for acquired businesses       834
Supplemental cash flow information:        
Cash paid for taxes 25 18,744 915 1,939
Cash paid for interest $ 315 $ 558 $ 2,298 $ 2,577