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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Current assets |  |
Cash and equivalents | $ 101,432 | $ 78,661
Short term investments |  | 79,733
Accounts receivable, net of allowances of $696 in 2018 and $520 in 2017 | 41,704 | 48,126
Inventories, net | 14,454 | 12,040
Prepaid expenses | 6,329 | 3,876
Contract assets | 4,915 |
Other current assets | 7,978 | 5,501
Total current assets | 176,812 | 227,937
Property and equipment: |  |
Furniture and fixtures | 7,730 | 5,655
Office equipment | 10,384 | 13,084
Total Property and equipment: | 18,114 | 18,739
Accumulated depreciation | (11,533) | (13,963)
Property and equipment, net | 6,581 | 4,776
Goodwill | 95,456 | 56,332
Intangible assets, net of accumulated amortization | 49,138 | 37,888
Deferred income taxes | 4,922 | 5,460
Contract assets - non-current | 7,534 |
Other assets | 6,649 | 5,229
Total assets | 347,092 | 337,622
Current liabilities |  |
Accounts payable | 6,520 | 8,144
Deferred revenue | 30,675 | 33,295
Accrued wages and payroll taxes | 10,837 | 11,643
Short-term income taxes payable | 1,599 | 3,673
Other accrued expenses | 10,680 | 7,746
Deferred compensation | 583 | 1,652
Total current liabilities | 60,894 | 66,153
Long-term deferred revenue | 6,947 | 7,019
Other long-term liabilities | 7,556 | 5,919
Long-term income taxes payable | 11,648 | 12,848
Deferred income taxes | 9,131 | 7,753
Total liabilities | 96,176 | 99,692
Stockholders' equity |  |
Common stock: $.001 par value per share, 75,000 shares authorized; 40,233 and 40,086 issued and outstanding at June 30, 2018 and December 31, 2017, respectively | 40 | 40
Additional paid-in capital | 92,115 | 90,307
Accumulated income | 169,317 | 156,151
Accumulated other comprehensive loss | (10,556) | (8,568)
Total stockholders' equity | 250,916 | 237,930
Total liabilities and stockholders' equity | $ 347,092 | $ 337,622

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