Note 9 - Commitments and Contingencies (Details) - Future Minimum Lease Payments under Noncancelable Operating Leases (USD $)	Dec. 31, 2013
Note 9 - Commitments and Contingencies (Details) - Future Minimum Lease Payments under Noncancelable Operating Leases [Line Items]
2014	$ 3,307,344
2015	2,689,245
2016	1,982,471
2017	1,401,911
2018	677,356
Total minimum lease payments	10,218,378
Year 2019 [Member]
Note 9 - Commitments and Contingencies (Details) - Future Minimum Lease Payments under Noncancelable Operating Leases [Line Items]
Remaining lease payments after five years	132,384
Year 2020 [Member]
Note 9 - Commitments and Contingencies (Details) - Future Minimum Lease Payments under Noncancelable Operating Leases [Line Items]
Remaining lease payments after five years	$ 27,667

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Amount of minimum lease payments for capital leases.

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Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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