Note 5 - Stockholders' Equity (Detail) - Stock Option Transactions (USD $)	6 Months Ended
Jun. 30, 2012
Outstanding at December 31, 2011	928,242
Outstanding at December 31, 2011 (in Dollars per share)	$ 5.43
Granted	20,000
Granted (in Dollars per share)	$ 0.94
Exercised	0
Exercised (in Dollars per share)	$ 0
Forfeited or expired	(19,200)
Forfeited or expired (in Dollars per share)	$ 10.23
Outstanding at June 30, 2012	929,042
Outstanding at June 30, 2012 (in Dollars per share)	$ 5.23
Exercisable at June 30, 2012	579,365
Exercisable at June 30, 2012 (in Dollars per share)	$ 7.39

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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