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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Cash flows provided by operating activities:    
Net loss $ (1,077) $ (2,923)
Adjustments to reconcile net loss to net cash provide by operating activities:    
Depreciation and amortization 2,317 2,887
Provision for doubtful accounts 72 74
Excess and obsolete site equipment to be installed expense 226 63
Transfer of fixed assets to sales-type lease 5
Stock-based compensation 457 419
Amortization of debit issuance costs 60 36
Common stock issued for compensation in lieu of cash payment 209
Loss from disposition of equipment and capitalized software 18 33
Changes in assets and liabilities:    
Accounts receivable 142 (83)
Site equipment to be installed (3,932) (217)
Prepaid expenses and other assets 443 121
Accounts payable and accrued liabilities (586) 47
Income taxes payable 9 (19)
Deferred costs 130 425
Deferred revenue 2,349 (327)
Deferred rent (189) (170)
Other liabilities (99) (348)
Net cash provided by operating activities 549 23
Cash flows (used in) investing activities:    
Capital expenditures (728) (427)
Software development expenditures (724) (413)
Net cash (used in) investing activities (1,452) (840)
Cash flows (used in) provided by financing activities:    
Net proceeds from issuance of common stock related to registered direct offering 1,773 2,692
Proceeds from long-term debt 50 2,502
Payments on long-term debt (3,038) (1,829)
Debt issuance costs on long-term debt (82) (9)
Principal payments on capital lease (155) (81)
Adjustments to common stock in connection with reverse/forward stock split (Note 9) (3)
Dividends paid to Series A preferred shareholders (16) (16)
Net cash (used in) provided by financing activities (1,468) 3,256
Net (decrease) increase in cash and cash equivalents (2,371) 2,439
Effect of exchange rate on cash 63 24
Cash and cash equivalents at beginning of year 5,686 3,223
Cash and cash equivalents at end of year 3,378 5,686
Supplemental disclosures of cash flow information: Cash paid during the period for:    
Interest 458 492
Income taxes 36 47
Supplemental disclosure of non-cash investing and financing activities:    
Site equipment transferred to fixed assets 1,838 1,220
Equipment acquired under capital lease 81 279
Site equipment transferred to other current assets $ 176