| Net cash provided by operating activities | |
| Purchase of marketable securities | -46.31M |
| Purchase of deposits | |
| Proceeds from maturity of marketable securities | |
| Proceeds from sales of marketable securities | |
| Proceeds from maturity of deposits | |
| Proceeds from sales of property and equipment | |
| Purchases of property and equipment | -1.51M |
| Net cash used in investing activities | |
| Purchase of treasury stock | -5.95M |
| Issuance of treasury stock for cash upon exercise of options | |
| Net cash provided by (used in) financing activities | |
| Decrease in cash and cash equivalents | 140K |
| Cash erosion due to exchange rate differences | 64K |
| Cash and cash equivalents at the beginning of the period | 13.7M |
| Cash and cash equivalents at the end of the period | 13.91M |