Note 7 - Commitments and Contingencies (Details) (USD $)	3 Months Ended			0 Months Ended	1 Months Ended	3 Months Ended	12 Months Ended	1 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	May 12, 2014 Subsequent Event [Member] Clearwater Environmental Services [Member]	Nov. 08, 2014 Scenario, Forecast [Member] Clearwater Environmental Services [Member]	Mar. 31, 2014 Clearwater Environmental Services [Member]	Dec. 31, 2013 Clearwater Environmental Services [Member]	Apr. 30, 2013 Minimum [Member] Clearwater Environmental Services [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				236,000	235,000		61,000
Litigation Settlement, Expense	387,000	99,000				387,000
	$ 706,000		$ 259,000			$ 706,000