Note 8 - Derivative Financial Instruments (Detail) - Summary of the Company’s Derivative Positions (USD $)	Jun. 30, 2011
Interest Rate Swap (in Dollars)	$ 13,500,000
Canadian DollarUSD [Member]
Notional Amount (in Dollars)	2,890,000
Weighted Average Remaining Maturity In Years	0.2
Average Exchange Rate	0.97
British PoundUSD [Member]
Notional Amount (in Dollars)	150,000
Weighted Average Remaining Maturity In Years	0.8
Average Exchange Rate	1.47
British Pound Euro [Member]
Notional Amount (in Dollars)	200,000
Weighted Average Remaining Maturity In Years	0.3
Average Exchange Rate	1.13
USDAUD [Member]
Notional Amount (in Dollars)	$ 3,093,627
Weighted Average Remaining Maturity In Years	0.1
Average Exchange Rate	1.07