Note 29 - Share-based Compensation Expenses - Options Issued and Outstanding (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Options outstanding, number of underlying shares (in shares)	835,216	357,976
Options outstanding, weighted average remaining contractual life (Year)	4 years 14 days	5 years 14 days	6 years 175 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 2.49	$ 3.02
Option exercisable, number of underlying shares (in shares)	517,056	357,976
Option exercisable, weighted average remaining contractual life (Year)	4 years 40 days	5 years 87 days	6 years 175 days
Option exercisable, weighted average exercise price (in dollars per share)	$ 2.73	$ 3.02
Options outstanding, granted/vested shares (in shares)		477,240
Options outstanding, granted/vested, weighted average remaining contractual life (Year)		5 years
Options outstanding, granted/vested, weighted average exercise price (in dollars per share)		$ 2.10
Option exercisable, granted/vested shares (in shares)	159,080	159,080
Option exercisable, granted/vested, weighted average remaining contractual life (Year)	3 years 255 days	5 years
Option exercisable, granted/vested, weighted average exercise price (in dollars per share)	$ 2.10	$ 2.10
Options outstanding, number of underlying shares (in shares)	835,216	835,216	357,976
Options outstanding, weighted average exercise price (in dollars per share)	$ 2.49	$ 2.49	$ 3.02
Option exercisable, number of underlying shares (in shares)	676,136	517,056	357,976
Option exercisable, weighted average exercise price (in dollars per share)	$ 2.59	$ 2.73	$ 3.02