Note 7 - Bank Lines of Credit and Other Debt (Detail) - Schedule of Outstanding Bank Lines of Credit (Parentheticals)																6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended
	Apr. 23, 2016 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2012 EUR (€)	Jun. 30, 2012 Minimum [Member] Bank Line Of Credit Four [Member]	Dec. 31, 2011 Minimum [Member] Bank Line Of Credit Four [Member]	Jun. 30, 2012 Maximum [Member] Bank Line Of Credit Four [Member]	Dec. 31, 2011 Maximum [Member] Bank Line Of Credit Four [Member]	Jun. 30, 2012 Euros [Member] BankLineOfCreditThree[Member] EUR (€)	Dec. 31, 2011 Euros [Member] BankLineOfCreditThree[Member] EUR (€)	Jun. 30, 2012 Euros [Member] Bank Line Of Credit Four [Member] EUR (€)	Dec. 31, 2011 Euros [Member] Bank Line Of Credit Four [Member] EUR (€)	Jun. 30, 2012 US Dollar [Member] BankLineOfCreditThree[Member] USD ($)	Dec. 31, 2011 US Dollar [Member] BankLineOfCreditThree[Member] USD ($)	Jun. 30, 2012 US Dollar [Member] Bank Line Of Credit Four [Member] USD ($)	Dec. 31, 2011 US Dollar [Member] Bank Line Of Credit Four [Member] USD ($)	Jun. 30, 2012 Bank Line Of Credit One [Member] USD ($)	Dec. 31, 2011 Bank Line Of Credit Two [Member] USD ($)	Jun. 30, 2012 BankLineOfCreditThree[Member]	Dec. 31, 2011 BankLineOfCreditThree[Member]	Jun. 30, 2012 Bank Line Of Credit Four [Member]	Dec. 31, 2011 Bank Line Of Credit Four [Member]
Bank line of credit (in Dollars)	$ 35,000,000	$ 1,519,000	€ 1,200,000					€ 4,000,000	€ 4,000,000	€ 1,000,000	€ 1,000,000	$ 5,064,000	$ 5,182,000	$ 1,266,000	$ 1,296,000	$ 35,000,000	$ 21,000,000
Bank line of credit interest rate																4.50%	2.69%	1.34%	2.13%
Bank line of credit due date																Apr. 23, 2016	Jul. 01, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2012	Dec. 31, 2011
Facility line of credit (in Euro)	$ 35,000,000	$ 1,519,000	€ 1,200,000					€ 4,000,000	€ 4,000,000	€ 1,000,000	€ 1,000,000	$ 5,064,000	$ 5,182,000	$ 1,266,000	$ 1,296,000	$ 35,000,000	$ 21,000,000
Facilities interest rate Minimum				1.85%	2.56%
Facilities interest rate Maximum						2.83%	3.12%