Note 6 - Accrued Expenses and Other Long-term Liabilities - Other Long-term Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Acquisition-related liabilities	$ 3,268	$ 1,326
Deferred rent		530
Income taxes	781	559
Other	166	196
Total	$ 4,215	$ 2,611

Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent.

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Amount of liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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