Note 8 - Income Taxes (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Expense (Benefit), Continuing Operations	$ 0
Deferred Tax Assets, Tax Credit Carryforwards	2,921,000	2,537,000	2,217,000
Expire 2023 [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	94,078,000
Expire 2027 [Member]
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	83,558,000
New York State [Member]
Proceeds from Income Tax Refunds	537,000	367,000	438,000
Expire 2024 [Member]
Deferred Tax Assets, Tax Credit Carryforwards	2,921,000
Expire 2013 [Member]
Deferred Tax Assets, Tax Credit Carryforwards	$ 650,000