Note 9 - Notes Payable (Details) - Components of Notes Payable (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Note 9 - Notes Payable (Details) - Components of Notes Payable [Line Items]
Note Payable Fair Value	$ 58,746	$ 53,672
Note Payable Carrying Value	57,926	52,851
Notes payable, current	28,114	19,129
Notes payable, non-current	29,812	33,722
Tokyo-Mitsubishi Bank [Member]
Note 9 - Notes Payable (Details) - Components of Notes Payable [Line Items]
Note Payable Fair Value	10,200	11,600
Note Payable Carrying Value	10,200	11,600
Mizuho Bank Limited [Member]
Note 9 - Notes Payable (Details) - Components of Notes Payable [Line Items]
Note Payable Fair Value	10,200
Note Payable Carrying Value	10,200
SAG [Member]
Note 9 - Notes Payable (Details) - Components of Notes Payable [Line Items]
Note Payable Fair Value	38,346	42,072
Note Payable Carrying Value	$ 37,526	$ 41,251