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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 6 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Operating activities    
Net income (loss) $ 3,323 $ (701)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation and amortization 683 868
Stock-based compensation 389 296
Change in assets and liabilities:    
Trade accounts receivable (1,500) 102
Prepaid expenses and other current assets 156 243
Other assets 36 (13)
Trade accounts payable and accrued expenses 299 (208)
Deferred revenue 375 338
Net cash provided by operating activities 3,761 925
Investing activities    
Capitalized software and technology development costs and purchase of equipment (401) (417)
Net cash used in investing activities (401) (417)
Financing activities    
Proceeds from sales of Class B Common Stock 5,000 275
Payment of issuance costs (215)  
Repayment of insurance premium loan payable (100) (78)
Proceeds from exercise of stock options 396 4
Purchase of treasury stock in connection with restricted stock vesting (26) (29)
Net cash provided by financing activities 5,055 172
Effect of exchange rate changes on cash and cash equivalents 82 (37)
Net increase in cash and cash equivalents 8,497 643
Cash and cash equivalents at beginning of period 5,111 1,609
Cash and cash equivalents at end of period 13,608 2,252
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION    
Cash payments made for income taxes 1 1
Cash payments made for interest expenses 2 $ 2
SUPPLEMENTAL SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES    
Note payable issued for insurance premium financing $ 181