Note 10 - Leases - Payments Under Non-cancelable Operating Leases and Capital Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
2017	$ 96
2017	603
2018	55
2018	484
2019	26
2019	312
2020	26
2020	106
2021	6
2021
Total minimum lease payments	209
Less: Amount representing interest	17
Present value of minimum lease payments	192
Less: Current maturities	82	$ 74
Capital lease obligations, net of current portion	$ 110