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Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
OPERATING ACTIVITIES    
Net loss $ (1,629) $ (2,138)
Loss from discontinued operations, net of tax 501 3,687
Adjustments to reconcile net income (loss) from continuing operations to net cash provided by operating activities:    
Depreciation and amortization of financing fees 3,467 3,600
Amortization of intangible assets 497 627
(Gain) loss on long-lived asset disposal and write-offs 13 91
Foreign exchange (gain) loss 43 (95)
Non-cash stock-based compensation 1,379 1,225
Changes in deferred income taxes 15 448
Provision for loss on accounts receivable 9 237
Provision for inventory obsolescence 375 1,537
Provision for warranty charges 370 591
Provision for workers' compenstion obligation   (217)
Changes in operating assets and liabilities:    
Accounts receivable 1,183 15,035
Inventories 4,122 (5,738)
Income taxes receivable 194 (220)
Prepaid expenses and other current assets (75) 266
Insurance receivable relating to fires 1,019 (1,730)
Income taxes payable (9) (43)
Accounts payable and other liabilities (5,611) (6,225)
Net cash provided by operating activities from continuing operations 5,863 10,938
Net cash provided by operating activities from discontinued operations (1,095) 24
Net cash provided by operating activities 4,768 10,962
INVESTING ACTIVITIES    
Purchase of property and equipment (2,685) (2,362)
Proceeds from asset disposal   13
Change in restricted cash (260) 298
Payment for acquired companies, net of cash acquired   (50)
Net cash used in investing activities from continuing operations (2,945) (2,101)
Net cash provided from (used in) investing activities from discontinued operations 2,133 102
Net cash used in investing activities (812) (1,999)
FINANCING ACTIVITIES    
Net change in revolving credit facilities   (8,541)
Proceeds from issuance of common stock 115 73
Principal payments on debt and capital lease obligations   (8)
Net cash provided from (used in) financing activities from continuing operations 115 (8,476)
Net cash used in financing activities from discontinued operations   (128)
Net cash provided from (used in) financing activities 115 (8,604)
Effect of exchange rate changes on cash 265 320
Change in cash and cash equivalents 4,336 679
Cash and cash equivalents at beginning of period 5,320 4,641
Cash and cash equivalents at end of period 9,656 5,320
SUPPLEMENTAL CASH FLOW INFORMATION    
Cash paid for interest 237 353
Cash paid for income taxes $ 357 $ 158