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Note 12 - Summary of Accrued Liabilities (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Salaries, wages, employment taxes and withholdings $ 2,226,000 $ 2,758,000
Employee benefit plans 1,312,000 1,437,000
Accrued professional fees 3,670,000 2,664,000
Income, property and other taxes 301,000 2,439,000
Deferred revenue 1,208,000 6,120,000
Other 2,944,000 3,357,000
$ 11,661,000 $ 18,775,000