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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Cash flows from operating activities:      
Net income $ 28 $ 574 $ 17,028
Adjustments required to reconcile net income to net cash provided by operating activities:      
Depreciation 3,104 2,915 2,014
Amortization of intangible assets 2,165 1,242 1,236
Equity-based compensation 10,718 10,367 8,693
Realized loss, net on sale of available-for-sale marketable securities 28 67
Amortization of premiums on available-for-sale marketable securities 554 773 1,179
Unrealized foreign exchange (gain) loss, net 249 155 (42)
Revaluation of investment in other company 0 870 0
Changes in operating assets and liabilities:      
Trade receivables (2,151) (463) (1,446)
Prepaid expenses and other assets (4,170) (3,855) (2,478)
Operating lease right-of-use assets (1,281)
Accrued interest on bank deposits (161) (557) 151
Deferred taxes, net (3,594) (2,187) (1,375)
Trade payables 53 226 (184)
Deferred revenues 85 (806) (1,859)
Accrued expenses and other payables (131) (493) 1,259
Accrued payroll and related benefits 3,056 (527) 1,807
Operating lease liability 1,166
Income taxes payable (53) 96 (1,493)
Accrued severance pay, net 9 215 (21)
Net cash provided by operating activities 9,674 8,612 24,469
Cash flows from investing activities:      
Acquisition of business (11,000)
Purchase of property and equipment (3,461) (3,319) (4,135)
Purchase of intangible assets (7,364) (1,960)
Investment in bank deposits (39,346) (21,596) (47,027)
Proceeds from bank deposits 45,435 32,892 44,450
Investment in available-for-sale marketable securities (27,184) (19,666) (54,882)
Proceeds from maturity of available-for-sale marketable securities 3,888 10,122 9,296
Proceeds from sale of available-for-sale marketable securities 36,589 13,354 23,512
Net cash provided by (used in) investing activities (2,443) 9,827 (28,786)
Cash flows from financing activities:      
Purchase of treasury Stock (9,113) (20,008)
Proceeds from exercise of stock-based awards 2,437 2,249 7,487
Net cash provided by (used in) financing activities (6,676) (17,759) 7,487
Effect of exchange rate changes on cash and cash equivalents (12) (159) 168
Increase in cash and cash equivalents 543 521 3,338
Cash and cash equivalents at the beginning of the year 22,260 21,739 18,401
Cash and cash equivalents at the end of the year 22,803 22,260 21,739
Supplemental information of cash-flows activities:      
Income and withholding taxes 5,063 4,294 5,203
Non-cash transactions:      
Cumulative effect of adoption of new accounting standard 8,555
Property and equipment purchases incurred but unpaid at period end 21 14
Intangible assets purchased but unpaid at period end 750
Right-of-use assets obtained in the exchange for operating lease liabilities $ 2,493