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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Operating activities    
Net income (loss) $ 1,045 $ (801)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation and amortization 359 505
Stock-based compensation 237 98
Change in assets and liabilities:    
Trade accounts receivable (554) 68
Prepaid expenses and other current assets 80 207
Other assets 19 (13)
Trade accounts payable and accrued expenses 80 192
Deferred revenue 221 96
Net cash provided by operating activities 1,487 352
Investing activities    
Capitalized software and technology development costs and purchase of equipment (215) (213)
Net cash used in investing activities (215) (213)
Financing activities    
Repayment of insurance premium loan payable (40) (31)
Purchase of treasury stock in connection with restricted stock vesting (26) (22)
Net cash used in financing activities (66) (53)
Effect of exchange rate changes on cash and cash equivalents (65) (36)
Net increase in cash and cash equivalents 1,141 50
Cash and cash equivalents at beginning of period 5,111 1,609
Cash and cash equivalents at end of period 6,252 1,659
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION    
Cash payments made for interest expenses 1 $ 1
SUPPLEMENTAL SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES    
Note payable issued for insurance premium financing $ 181