Note 7 - Commitments and Contingencies (Details) (USD $)	3 Months Ended	6 Months Ended			1 Months Ended	0 Months Ended	3 Months Ended	12 Months Ended	1 Months Ended
	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Nov. 08, 2014 Scenario, Forecast [Member] Clearwater Environmental Services [Member]	May 12, 2014 Clearwater Environmental Services [Member]	Mar. 31, 2014 Clearwater Environmental Services [Member]	Dec. 31, 2013 Clearwater Environmental Services [Member]	Apr. 30, 2013 Clearwater Environmental Services [Member] Minimum [Member]
Note 7 - Commitments and Contingencies (Details) [Line Items]
Loss Contingency, Damages Sought, Value									$ 1,700,000
Litigation Settlement, Amount						706,000
Payments for Legal Settlements					235,000	236,000		61,000
Litigation Settlement, Expense	59,000	387,000	158,000				387,000
		$ 470,000		$ 259,000