Note 7 - Accrued Salaries and Benefits - Accrued Salaries and Benefits (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accrued paid time off and leave	$ 11,342	$ 10,573
Accrued salaries	9,443	7,406
Accrued bonuses, liability-classified awards and commissions	13,590	11,213
Accrued payroll taxes and withholdings	22	6,154
Accrued medical	3,026	2,520
Other	6,580	5,252
Total accrued salaries and benefits	$ 44,003	$ 43,118