Note 11 - Stockholders's Equity (Details) (USD $)	3 Months Ended	9 Months Ended			13 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Jan. 31, 2013	Jan. 31, 2013 DLR Loan [Member]	Jan. 31, 2013 Dutch Auction Tender Offer [Member]	Sep. 30, 2014 Stock Buyback Program [Member]	Mar. 31, 2013 Stock Buyback Program [Member]	Sep. 30, 2014 Stock Buyback Program [Member]	Mar. 05, 2014 Stock Buyback Program [Member]
Note 11 - Stockholders's Equity (Details) [Line Items]
Stock Repurchased and Retired During Period, Shares (in Shares)					1,028,531	73,300		79,392
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share)					$ 6.00
Stock Repurchased and Retired During Period, Value	$ 1,099,571	$ 1,181,857			$ 6,171,656	$ 1,100,000		$ 1,200,000
Stock Repurchased Transaction Costs					106,000
Long-term Line of Credit				5,200,000
Shares, Outstanding (in Shares)			10,056,719
Stock Repurchase Program, Authorized Amount							10,000,000		20,000,000
Stock Repurchased During Period, Shares (in Shares)							35,769
Stock Repurchased During Period, Value							$ 259,875