Note 12 - Income Taxes (Detail) - Operating Loss and Tax Credit Carry Forwards (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Federal:
Operating losses (expiring through 2032)	$ 31,584
Research tax credits (expiring through 2025)	168
Alternative minimum	28
State:
Net operating losses - New Jersey (expiring through 2017)	4,030
State [Member]
Federal:
Alternative minimum	$ 29

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.

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