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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 18,401 | $ 18,909
Short-term bank deposits | 46,247 | 30,767
Marketable securities (Note 3) | 61,868 | 48,266
Trade receivables (net of allowance for doubtful accounts of $0 and $25 at December 31, 2016 and December 31, 2015, respectively) | 15,044 | 4,068
Prepaid expenses and other current assets | 3,152 | 4,017
Total current assets | 144,712 | 106,027
Long-term assets: |  |
Bank deposits | 29,977 | 41,334
Severance pay fund | 7,941 | 7,297
Deferred tax assets (Note 13) | 2,252 | 1,628
Property and equipment, net (Note 5) | 4,805 | 3,731
Goodwill | 46,612 | 46,612
Intangible assets, net (Note 6) | 2,978 | 4,214
Investments in other company | 1,806 | 1,806
Other long-term assets | 1,412 |
Total long-term assets | 97,783 | 106,622
Total assets | 242,495 | 212,649
Current liabilities: |  |
Trade payables | 571 | 693
Deferred revenues | 6,258 | 2,763
Accrued expenses and other payables (Note 7) | 4,015 | 3,633
Accrued payroll and related benefits | 11,751 | 11,894
Total current liabilities | 22,595 | 18,983
Long-term liabilities: |  |
Accrued severance pay | 8,349 | 7,571
Total long-term liabilities | 8,349 | 7,571
Stockholders' equity (Note 8): |  |
Preferred stock: $0.001 par value: 5,000,000 shares authorized; none issued and outstanding |  |
Common stock: $0.001 par value: 60,000,000 shares authorized; 23,595,160 shares issued at December 31, 2015 and 2016; 20,529,933 and 21,273,500 shares outstanding at December 31, 2015 and 2016, respectively | 21 | 21
Additional paid in-capital | 212,103 | 208,744
Treasury stock at cost (3,065,227 and 2,321,660 shares of common stock at December 31, 2015 and 2016, respectively) | (39,507) | (51,798)
Accumulated other comprehensive loss (Note 10) | (497) | (419)
Retained earnings | 39,431 | 29,547
Total stockholders' equity | 211,551 | 186,095
Total liabilities and stockholders' equity | $ 242,495 | $ 212,649

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- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(8)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(7)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 + Details
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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