Note 22 - Concentration of Risk (Details Textual)	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer 1 [Member]
Concentration Risk, Percentage			11.00%		17.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer 2 [Member]
Concentration Risk, Percentage					14.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Number of Major Customers	0		1	0	2
Concentration Risk, Percentage	10.00%			10.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer 1 [Member]
Concentration Risk, Percentage				22.00%		24.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer 2 [Member]
Concentration Risk, Percentage				22.00%		17.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Number of Major Customers		2				2
Cost Of Sales Total [Member] | Supplier Concentration Risk [Member] | Supplier 1 [Member]
Concentration Risk, Percentage	60.00%		28.00%	60.00%	51.00%
Cost Of Sales Total [Member] | Supplier Concentration Risk [Member] | Supplier 2 [Member]
Concentration Risk, Percentage	10.00%		48.00%	12.00%	32.00%
Cost Of Sales Total [Member] | Supplier Concentration Risk [Member]
Number of Major Customers	2		2	2	2