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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Cash flows provided by (used in) operating activities:    
Net loss $ (313) $ (409)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:    
Depreciation and amortization 747 639
Provision for doubtful accounts 30 8
Amortization of operating lease right-of-use assets 72
Scrap expense 2 7
Stock-based compensation 59 117
Amortization of debt issuance costs 3 8
Loss from disposition of equipment and capitalized software 8 2
Changes in assets and liabilities:    
Accounts receivable 264 (327)
Site equipment to be installed 87 397
Operating lease liabilities (28)
Prepaid expenses and other assets 58 (407)
Accounts payable and accrued liabilities 2 (37)
Income taxes payable 10 7
Deferred costs (3) 148
Deferred revenue (184) (176)
Deferred rent (50)
Other liabilities (34) (47)
Net cash provided by (used in) operating activities 780 (120)
Cash flows used in investing activities:    
Capital expenditures (41) (169)
Capitalized software development expenditures (355) (203)
Net cash used in investing activities (396) (372)
Cash flows used in financing activities:    
Prinicipal payments on long-term debt (250) (182)
Principal payments on financing leases (18) (44)
Tax withholding related to net share settlement of vested restricted stock units (5)
Net cash used in financing activities (273) (226)
Net increase (decrease) in cash, cash equivalents and restricted cash 111 (718)
Effect of exchange rate on cash and cash equivalents 19 (25)
Cash, cash equivalents and restricted cash at beginning of period 2,786 3,378
Supplemental disclosures of cash flow information: Cash paid during the period for:    
Interest 71 85
Income taxes 1
Supplemental disclosure of non-cash investing and financing activities:    
Initial measurement of operating lease right-of-use assets and liabilities 3,458
Site equipment transferred to fixed assets 268 472
Equipment acquired under capital lease 5
Reconciliation of cash, cash equivalents and restricted cash at end of period:    
Cash and cash equivalents 2,666 2,635
Restricted cash 50
Restricted cash, long-term 200
Total cash, cash equivalents and restricted cash at end of period $ 2,916 $ 2,635