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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Cash flow from operating activities:      
Net income (loss) $ 5,689 $ 3,910 $ (747)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:      
Depreciation and amortization 3,897 3,414 3,703
Recovery of doubtful accounts 0 (423) (341)
Stock-based compensation 977 815 256
Deferred income taxes (762) (767) (1,617)
Pension costs 668 501 382
Impairment charge 505 0 0
Changes in operating assets and liabilities:      
Accounts receivable 7,389 (12,894) 3,693
Prepaid expenses and other current assets 548 (13) 61
Other assets (722) (668) (735)
Accounts payable 90 673 (406)
Accrued expenses (81) 371 (101)
Accrued salaries, wages and related benefits (12) 1,726 (152)
Income and other taxes (421) 375 862
Net cash provided by (used in) operating activities 17,765 (2,980) 4,858
Cash flows from investing activities:      
Capital expenditures (6,845) (5,886) (1,872)
Sale (purchase) of investments 2,737 8,047 (13,875)
Net cash provided by (used in) investing activities (4,108) 2,161 (15,747)
Cash flows from financing activities:      
Proceeds from exercise of stock options 574 0 0
Payment of long-term obligations (195) (585) (699)
Purchase of treasury stock 0 (1,327) (772)
Net cash provided by (used in) financing activities 379 (1,912) (1,471)
Increase (decrease) in cash and cash equivalents 14,036 (2,731) (12,360)
Cash and cash equivalents, beginning of year 11,389 14,120 26,480
Cash and cash equivalents, end of year 25,425 11,389 14,120
Supplemental disclosures of cash flow information:      
Cash paid for income taxes 1,794 1,079 308
Vendor financed software licenses acquired $ 0 $ 1,325 $ 0