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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:      
Net loss $ (15,987) $ (8,327) $ (9,782)
Adjustments to reconcile net loss to net cash flows provided by (used in) operating activities:      
Depreciation and amortization 2,748 2,278 2,101
Non-cash, stock based compensation 462 731 1,010
Provision for losses on doubtful accounts 5,548 2,468 1,738
Provision for losses on inventory obsolescence 217 129 48
Preferred stock revaluation 0 0 6,066
Warrant revaluation (300) (2,200) 0
Loss on disposal of fixed assets 9 23 0
Deferred income taxes 62 (25) (133)
Other (62) 0 0
Changes in operating assets and liabilities, net of acquisitions:      
Accounts receivable (2,757) (2,913) (2,212)
Inventories 908 (1,373) (620)
Prepaid expenses and other current assets 122 (209) 243
Accounts payable 801 (576) 1,028
Accrued liabilities (371) 96 332
Other long term liabilities 127 (306) 401
Net cash flows provided by (used in) operating activities (8,473) (10,204) 220
CASH FLOWS USED IN INVESTING ACTIVITIES:      
Acquisitions (849) (3,551) 0
Purchase of property and equipment (605) (882) (231)
Purchase of short term investments 0 (8,994) 0
Proceeds from the sale of short term investments 0 8,994 0
Change in other assets (312) (445) (277)
Net cash flows used in investing activities (1,766) (4,878) (508)
CASH FLOWS PROVIDED BY FINANCING ACTIVITIES:      
Proceeds from note payable 6,560 0 3,000
Principal payments on capital lease obligations (348) (328) (391)
Payment of deferred financing costs (241) 0 0
Issuance of common stock and related warrants, net 7,570 17,483 24
Principal payments on note payable (6,171) (2,551) (907)
Net cash flows provided by financing activities 7,370 14,604 1,726
EFFECT OF FOREIGN CURRENCY EXCHANGE RATE CHANGES ON CASH (2) 29 54
NET CHANGE IN CASH AND CASH EQUIVALENTS (2,871) (449) 1,492
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 4,497 4,946 3,454
CASH AND CASH EQUIVALENTS AT END OF PERIOD 1,626 4,497 4,946
Cash paid during the period for:      
Interest 724 964 732
Income taxes, net 9 123 108
SUPPLEMENTAL DISCLOSURE OF NON-CASH INFORMATION      
Acquisition of equipment through capital leases 0 175 756
Dividends accrued on preferred stock 726 660 600
Note payable converted to Equity 0 3,000 0
Acquisition of intangibles 0 849  
Common stock issued for elimination of derivatives on preferred stock 0 0 300
Goodwill purchase price adjustment $ 0 $ 0 $ 165