Note 3 - Balance Sheet Detail (in Thousands) - Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accrued payroll	$ 134	$ 132
Accrued vacation	279	281
Rent payable	13	51
Accrued interest, related party	184	76
Other	81	80
Total accrued expenses	$ 691	$ 620