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Note 3 - Balance Sheet Components - Components of Accrued Expenses and Other Current Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Accrued salary and payroll-related expenses $ 3,952 $ 4,372
Accrued liabilities 1,477 2,161
Advanced billings 469 459
Deferred rent 518 475
Customer advances 447 2,003
Income taxes payable 840 142
Sales and use tax payable 203 341
Other 956 521
Total accrued expenses and other current liabilities $ 8,862 $ 10,474 [1]
[1] Derived from the Company's audited consolidated financial statements as of December 31, 2017.