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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Cash flows provided by (used in) operating activities:    
Net loss $ (2,923) $ (7,226)
Adjustments to reconcile net loss to net cash provide by (used in) operating activities:    
Depreciation and amortization 2,887 3,104
Provision for doubtful accounts 74 12
Excess and obsolete site equipment to be installed expense 63 797
Transfer of fixed assets to sales-type lease 5 0
Stock-based compensation 419 456
Amortization of debit issuance costs 36 18
Issuance of common stock to consultant in lieu of cash payment 0 1
Impairment of capitalized software 295
Loss from disposition of equipment and capitalized software 33 28
Changes in assets and liabilities:    
Accounts receivable (83) 1,250
Site equipment to be installed (217) (1,394)
Prepaid expenses and other assets 121 (235)
Accounts payable and accrued liabilities 47 (372)
Income taxes payable (19) (72)
Deferred costs 425 (241)
Deferred revenue (327) (608)
Deferred rent (170) (152)
Other liabilities (348) 159
Net cash provided by (used in) operating activities 23 (4,180)
Cash flows used in investing activities:    
Capital expenditures (427) (991)
Software development expenditures (413) (641)
Proceeds from the sales of equipment and other assets 9
Net cash used in investing activities (840) (1,623)
Cash flows provided by financing activities:    
Net proceeds from issuance of common stock related to registered direct offering 2,692  
Proceeds from long-term debt 2,502 6,737
Payments on long-term debt (1,829) (4,618)
Debt issuance costs on long-term debt (9) (81)
Principal payments on capital lease (81) (58)
Adjustments to common stock in connection with reverse/forward stock split (3)
Dividends paid to Series A preferred shareholders (16)
Net cash provided by financing activities 3,256 1,980
Net increase (decrease) in cash and cash equivalents 2,439 (3,823)
Effect of exchange rate on cash 24 (139)
Cash and cash equivalents at beginning of year 3,223 7,185
Cash and cash equivalents at end of year 5,686 3,223
Supplemental disclosures of cash flow information: Cash paid during the period for:    
Interest 492 330
Income taxes 47 69
Supplemental disclosure of non-cash investing and financing activities:    
Site equipment transferred to fixed assets 1,220 1,354
Site equipment transferred to other current assets 176
Equipment acquired under capital lease 279 215
Issuance of common stock in lieu of payment of dividends $ 16