Note 5 - Stockholders' Equity (Detail) - Stock Option Transactions (USD $)	9 Months Ended
Sep. 30, 2012
Outstanding at December 31, 2011	928,242
Outstanding at December 31, 2011 (in Dollars per share)	$ 5.43
Granted	39,500
Granted (in Dollars per share)	$ 0.93
Exercised	0
Exercised (in Dollars per share)	$ 0
Forfeited or expired	(80,600)
Forfeited or expired (in Dollars per share)	$ 4.60
Outstanding at September 30, 2012	887,142
Outstanding at September 30, 2012 (in Dollars per share)	$ 5.30
Exercisable at September 30, 2012	593,432
Exercisable at September 30, 2012 (in Dollars per share)	$ 7.11

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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