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Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
OPERATING ACTIVITIES    
Net loss $ (960) $ (1,629)
(Income) loss from discontinued operations, net of tax (128) 501
Depreciation and amortization of financing fees 3,029 3,467
Amortization of intangible assets 402 497
Loss on long-lived asset disposal and write-offs 56 13
Foreign exchange loss 15 43
Non-cash stock-based compensation 1,131 1,379
Changes in deferred income taxes 113 15
Provision (gain) for the allowance for accounts receivable 29 9
Provision for inventory obsolescence 19 375
Provision for warranty charges 20 370
Changes in operating assets and liabilities:    
Accounts receivable 6,694 1,183
Inventories 4,399 4,122
Due from insurance company 316 1,019
Income taxes receivable 29 194
Prepaid expenses and other current assets (647) (75)
Income taxes payable 92 (9)
Accounts payable and other liabilities (6,714) (5,611)
Net cash provided by operating activities from continuing operations 7,895 5,863
Net cash used in operating activities from discontinued operations (998) (1,095)
Net cash provided by operating activities 6,897 4,768
INVESTING ACTIVITIES    
Purchase of property and equipment (766) (2,685)
Change in restricted cash (2) (260)
Net cash used in investing activities from continuing operations (768) (2,945)
Net cash provided from (used in) investing activities from discontinued operations 499 2,133
Net cash used in investing activities (269) (812)
FINANCING ACTIVITIES    
Proceeds from issuance of common stock 12 115
Net cash used in financing activities from continuing operations 12 115
Net cash used in financing activities from discontinued operations 0 0
Net cash used in financing activities 12 115
Effect of exchange rate changes on cash (230) 265
Change in cash and cash equivalents 6,410 4,336
Cash and cash equivalents at beginning of period 9,656 5,320
Cash and cash equivalents at end of period 16,066 9,656
SUPPLEMENTAL CASH FLOW INFORMATION    
Cash paid for interest 107 237
Cash paid for income taxes $ 100 $ 357