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Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 27, 2013
Dec. 28, 2012
Dec. 30, 2011
Cash flows from operating activities:      
Net income $ 8,729 $ 16,697 $ 21,769
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation expense 1,883 2,080 2,014
Amortization expense 602 547 811
Amortization of debt issuance costs 96 82  
Provision (reversal) for doubtful accounts 742 657 (619)
(Gain) loss on foreign currency transaction (4) 187 323
Non-cash stock compensation expense 6,119 5,522 4,605
Deferred income tax expense (benefit) 5,705 (1,191) (5,257)
Changes in assets and liabilities:      
Decrease (increase) in accounts receivable and unbilled revenue 1,841 (2,317) (3,010)
Decrease in prepaid expenses and other assets 514 95 301
Increase in accounts payable 369 278 1,843
Decrease in accrued expenses and other liabilities (2,337) (2,285) (2,465)
Net cash provided by operating activities 24,259 20,352 20,315
Cash flows from investing activities:      
Purchases of property and equipment (2,068) (3,252) (4,939)
Decrease in restricted cash 329 202 724
Net cash used in investing activities (1,739) (3,050) (4,215)
Cash flows from financing activities:      
Debt proceeds 11,002 40,000  
Payment of debt proceeds (16,974) (15,000)  
Debt issuance costs (129) (482)  
Dividends paid (3,096) (3,081)  
Proceeds from issuance of common stock 1,080 752 316
Repurchases of common stock (13,132) (55,587) (8,955)
Net cash used in financing activities (21,249) (33,398) (8,639)
Effect of exchange rate on cash 22 66 138
Net increase (decrease) in cash and cash equivalents 1,293 (16,030) 7,599
Cash and cash equivalents at beginning of year 16,906 32,936 25,337
Cash and cash equivalents at end of year 18,199 16,906 32,936
Supplemental disclosure of cash flow information:      
Cash (refunded) paid for income taxes 357 230 (318)
Cash paid for interest $ 338 $ 547