UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Cash flows from operating activities:    
Net (loss) earnings $ (426) $ 6,554
Less loss from discontinued operations (1,437) (106)
Income from continuing operations, net of income tax benefit 1,011 6,660
Adjustments to reconcile income from continuing operations, net of income tax benefit, to net cash provided by operating activities of continuing operations:    
Depreciation and amortization 3,552 2,361
Bad debt expense 350 168
Inventory reserves 704 80
Other non-cash expense 187 57
Stock-based compensation 1,323 1,083
Deferred income taxes (2,473) (4,739)
Changes in operating assets and liabilities, net of effects of acquisition:    
Accounts and financing receivables, net (2,886) (2,539)
Inventory, net (1,045) (778)
Accounts payable 412 (81)
Deferred revenue 990 289
Other 1,210 (880)
Net cash provided by operating activities of continuing operations 3,335 1,681
Cash flows from investing activities:    
Net cash paid for acquisition (177)  
Purchase of property and equipment (1,002) (1,050)
Purchase of intangible and other assets (2,599) (1,976)
Proceeds from sale-leaseback of equipment 716  
Other (11) (500)
Net cash used in investing activities of continuing operations (3,073) (3,526)
Cash flows from financing activities:    
Proceeds from underwritten offering, net of offering costs 27,731  
Proceeds from exercise of warrants 193  
Stock-based compensation plan activity (28) 287
Proceeds from note payable   1,000
Principal payments on capital lease obligations (198) (237)
Principal payments on notes payable and debt (6,975) (1,900)
Net cash provided by (used in) financing activities of continuing operations 20,723 (850)
Cash flows from discontinued operations:    
Net cash (used in) provided by operating activities of discontinued operations (105) 7
Net cash used in investing activities of discontinued operations (11) (104)
Net cash used in discontinued operations (116) (97)
Net increase (decrease) in cash and cash equivalents 20,869 (2,792)
Cash and cash equivalents at beginning of the period 4,948 9,547
Cash and cash equivalents at end of period 25,817 6,755
Cash payments for:    
Interest 144 172
Income taxes 76 175
Disclosure of non-cash investing activities:    
Capital leases 716  
Common stock issued in connection with acquisition $ 925