Note 6 - Future Minimum Lease Payments (Details) $ in Thousands	Dec. 31, 2015 USD ($)
Operating leases, future minimum payments due, current	$ 969
Capital leases, future minimum payments due, current	67
Operating leases, future minimum payments due in year 2	742
Capital leases, future minimum payments due in year 2	58
Operating leases, future minimum payments due in year 3	644
Capital leases, future minimum payments due in year 3	37
Operating leases, future minimum payments due in year 4	$ 546
Capital leases, future minimum payments due in year 4
Operating leases, future minimum payments due in year 5	$ 518
Capital leases, future minimum payments due in year 5
Operating leases, future minimum payments due thereafter	$ 2,453
Capital leases, future minimum payments due thereafter
Operating leases, future minimum payments due	$ 5,872
Capital leases, future minimum payments due	162
Less amounts representing interest	4
Present value of minimum lease commitments	$ 158