Note 10 - Commitments and Contingencies (Detail) - Remaining Future Minimum Operating Lease Payments (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013
2013	$ 638
2014	750
2015	760
2016 and thereafter	4,727
	6,875
Real Estate Operating Leases [Member]
2013	624
2014	740
2015	760
2016 and thereafter	4,727
	6,851
Office Equipment Operating Lease [Member]
2013	14
2014	10
	$ 24

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 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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- Definition

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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- Definition

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.

+ References+ Details