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Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Operating activities      
Net income (loss) $ (4,624) $ 6,937 $ (2,736)
Loss from discontinued operations 235 2,653 4,648
Income (loss) from continuing operations (4,389) 9,590 1,912
Adjustments to reconcile net income (loss) from continuing operations to net cash (used in) provided by operating activities:      
Depreciation and amortization 5,704 6,306 6,507
Deferred income taxes (1,837) 5,220 2,941
Stock based compensation expense 61 1,915 12
Settlement payment   (10,000) (10,000)
Loss (gain) on disposal of property and equipment 22 (1,701) 16
Changes in operating assets and liabilities:      
Accounts receivable (11,422) (4,678) 6,595
Inventories (8,432) (3,539) 6,278
Prepaid expenses and other assets 2,035 2,118 3,403
Accounts payable and accrued expenses (1,156) 6,219 (5,532)
Other (3,494) (125) (1,570)
Net cash (used in) provided by operating activities (22,908) 11,325 10,562
Investing activities      
Purchases of property, plant and equipment (11,132) (10,048) (2,721)
Proceeds related to sale of businesses, net 58 27,264  
Proceeds from sale of property   2,027 2,179
Net cash (used in) provided by investing activities (11,074) 19,243 (542)
Financing activities      
Net payments on revolving line of credit     (7,700)
Dividends paid (4,098) (2,216) (2,727)
Other   (32) (420)
Net cash used in financing activities (4,098) (2,248) (10,847)
Discontinued operations      
Operating cash flows (370) 3,463 5,361
Investing cash flows   (4) (47)
Net cash (used in) provided by discontinued operations (370) 3,459 5,314
Increase (decrease) in cash and cash equivalents (38,450) 31,779 4,487
Cash and cash equivalents at beginning of year 40,566 8,787 4,300
Cash and cash equivalents at end of year $ 2,116 $ 40,566 $ 8,787