Note 12 - Concentration of Risks (Detail) - Major customers	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Customer A [Member]
Customer	26.00%	13.00%	21.00%	21.00%
Customer B [Member]
Customer	33.00%	29.00%	43.00%	32.00%
Customer C [Member]
Customer		27.00%		18.00%
Customer D [Member]
Customer	26.00%	27.00%	20.00%	23.00%