Note 4 - Accrued Payroll and Related Liabilities - Components of Accrued Payroll and Related Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accrued salaries and payroll taxes	$ 62	$ 179
Accrued vacation	120	153
Accrued bonuses	40
Total accrued payroll and related liabilities	$ 222	$ 332