Note 9 - Employee Benefits (Detail) (USD $)	3 Months Ended		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date			15.00%
Cash Bonus Percent for Affiliate Consultant Stock Purchases			15.00%
Stock Purchase Plans Maximum Amount Any Employee or Consultant Can Contribute to Plan Per Quarter (in Dollars)			$ 6,250
Common Stock, Capital Shares Reserved for Future Issuance	500,000		500,000
Stock Issued During Period, Shares, Employee Stock Purchase Plans			22,270	26,172
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	93,465		93,465
Defined Contribution Plan, Employer Discretionary Contribution Amount (in Dollars)	$ 76,000	$ 57,000