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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Operating activities:    
Net (loss)/income $ (241) $ (187)
Adjustments to reconcile net loss to net cash provided by operating activities:    
Depreciation and amortization 233 260
Gain on sale of assets (1)
Stock-based compensation expense 31 45
Deferred tax benefit (5) (28)
Changes in operating assets and liabilities, net of effect from acquisitions:    
Accounts receivable 543 199
Short-term investments (1) (2)
Prepaid expenses and other assets 161 11
Accounts payable (342) 158
Accrued expenses and other current liabilities (91) 148
Deferred revenue 616 635
Right of use assets and liabilities, net (8) 13
Net cash provided by operating activities 896 1,251
Investing activities:    
Acquisition of Postelsia Holdings, Ltd. (300)
Proceeds from sale of assets 1
Purchases of property, equipment and software development costs (110) (196)
Net cash used in investing activities (410) (195)
Financing activities:    
Repayments of notes payable (2)
Repayments of finance lease obligations (2) (1)
Stock repurchase under Stock Buyback Plan (158) (83)
Net cash used in financing activities (160) (86)
Net change in cash 326 970
Cash at beginning of period 2,638 1,482
Cash at end of period $ 2,964 $ 2,452