Note 15 - Contingencies (Details) (USD $)	1 Months Ended	7 Months Ended	12 Months Ended				1 Months Ended		5 Months Ended
	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012 ft	Dec. 31, 2012 Massachusetts [Member]	Dec. 31, 2012 Washington [Member]	Apr. 30, 2013 Default on Obligation, Februray 2012 [Member]	Feb. 28, 2013 Default on Obligation, Februray 2012 [Member]	Sep. 30, 2013 Default on Obligation, Februray 2012 [Member]
Note 15 - Contingencies (Details) [Line Items]
Installation of a reactive iron wall covering area (in Feet)				250
Environmental Remediation Estimated Initial Construction Cost				$ 688,000
Environmental Remediation Expense Expected To Be Incurred				1,997,000
Estimated period				30 years
Loss Contingency, Pending Claims, Number					239	1
Loss Contingency, Claims Settled and Dismissed, Number					37
Number of cases terminated					174
Unresolved cases				28
Loss Contingency, Loss in Period	412,000		114,000	50,000
Loss Contingency Accrual	377,000	12,000	12,000
Loss Contingency, Damages Sought, Value								50,000
Loss Contingency, Damages Awarded, Value							30,000
Number of monthly payments to pay per damanges value		29							5
Payments for Legal Settlements									6,000
Other Accrued Liabilities	$ 35,000