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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Operating Activities:    
Net loss $ (6,950) $ (4,698)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 1,505 2,003
Amortization of debt discount 756 852
Stock-based compensation 284 273
Change in warrant liability 153 42
Allowance for doubtful accounts 85
Warrants issued for services 36
ConeXus acquisition stock issuance expense 1,971
Increase in notes due to in-kind interest 86 102
Deferred tax provision (benefit) (61) (365)
Impairment of intangible assets 1,065
Gain on debt settlement (872) (1,008)
Changes to operating assets and liabilities:    
Accounts receivable and unbilled revenues (1,749) (3,360)
Inventories (266) (503)
Prepaid expenses and other current assets (862) 180
Other non-current assets (34) 65
Accounts payable (390) 858
Deferred revenue 5,968 (460)
Accrued expenses 473 17
Customer deposits 641 606
Other non-current liabilities 2 104
Net cash provided by (used in) operating activities 655 (4,106)
Investing activities    
Purchases of property and equipment (569) (292)
Net cash used in investing activities (569) (292)
Financing activities    
Issuance of common stock 500 167
Issuance of loans payable and warrants, net of discount 4,510
Share repurchase and cancellation (149)
Payments on debts (786) (288)
Net cash (used in) provided by financing activities (435) 4,389
(Decrease)/increase in Cash and Cash Equivalents (349) (9)
Cash and Cash Equivalents, beginning of year 1,352 1,361
Cash and Cash Equivalents, end of year $ 1,003 $ 1,352