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Consolidated Cash Flow Statements (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Apr. 01, 2012
Apr. 03, 2011
Cash flows from operating activities:    
Net income $ 5,288 $ 2,052
Loss from discontinued operations (223) (450)
Income from continuing operations 5,511 2,502
Adjustments to reconcile net income to net cash (used in)provided by operating activities:    
Depreciation and amortization 3,073 3,637
Stock-based compensation expense 439 232
Deferred revenue recognized (1,973) (1,721)
Deferred loan costs recognized 19 96
Gain on sale of assets (2,612) (460)
Provision for excess and obsolete inventory 409 413
Other noncash items 901 625
Contributions to pension plans (446) (32)
Changes in operating assets and liabilities:    
Accounts receivable (17,719) (9,599)
Inventory (5,649) (5,516)
Other current assets (554) 489
Accounts payable 12,193 11,304
Accrued and other liabilities 5,471 (1,257)
Net cash (used in) provided by operating activities (937) 713
Cash flows from investing activities:    
Capital expenditures, net (1,444) (1,378)
Proceeds from sale of assets 4,481 463
Changes in nonoperating assets and liabilities (90) 22
Net cash provided by (used in) investing activities 2,947 (893)
Cash flows from financing activities:    
Net change in debt under revolving credit agreements (1,000) 1,000
Common stock repurchases (11) 0
Proceeds from the issuance of common stock 0 16
Net cash (used in) provided by financing activities (1,011) 1,016
Net increase in cash and cash equivalents 999 836
Cash and cash equivalents at beginning of period 18,173 [1] 16,592
Cash and cash equivalents at end of period $ 19,172 $ 17,428
[1] Note: The balance sheet at December 31, 2011 has been derived from the audited consolidated financial statements at that date but does not include all information and footnotes required by accounting principles generally accepted in the United States for a complete set of financial statements.