Note 8 - Accrued Liabilities - Accrued Liabilities (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Payroll expenses and tax payable	$ 556,000	$ 207,000
Bonuses payable	904,000	727,000
Uncertain tax position liability (Note 11)		194,000
	$ 1,460,000	$ 1,128,000