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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Cash flows used in operating activities:    
Net loss $ (1,041) $ (2,263)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:    
Depreciation and amortization 757 701
Provision for doubtful accounts 24 (39)
Excess and obsolete site equipment to be installed expense 25 163
Stock-based compensation 113 $ 99
Amortization of debit issuance costs $ 10
Issuance of common stock to consultant in lieu of cash payment $ 1
Loss from disposition of equipment $ 5 1
Changes in assets and liabilities:    
Accounts receivable 126 1,459
Site equipment to be installed (115) 154
Prepaid expenses and other assets (76) 100
Accounts payable and accrued liabilities (209) 312
Income taxes payable (1) (13)
Deferred costs 29 (70)
Deferred revenue (7) 518
Deferred rent (40) (36)
Other liabilities (104) (92)
Net cash used in (provided by) operating activities (504) 995
Cash flows used in investing activities:    
Capital expenditures (177) (215)
Software development expenditures (99) (222)
Net cash used in investing activities (276) (437)
Cash flows provided by (used in) financing activities:    
Principal payments on capital lease (21) (7)
Proceeds from long-term debt 2,114 74
Payments on long-term debt (1,035) $ (699)
Debt issuance costs on long-term debt (5)
Net cash provided by (used in) financing activities 1,053 $ (632)
Net increase (decrease) in cash and cash equivalents 273 (74)
Effect of exchange rate on cash 53 52
Cash and cash equivalents at beginning of year 3,223 7,185
Cash and cash equivalents at end of year 3,549 7,163
Supplemental disclosures of cash flow information: Cash paid during the period for:    
Interest 84 103
Income taxes 20 27
Supplemental disclosure of non-cash investing and financing activities:    
Site equipment transferred to fixed assets 317 240
Equipment acquired under capital lease $ 22 $ 160