Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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Name:	us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Note 15 - Commitments and Contingencies (Details Textual) - USD ($) $ in Millions	12 Months Ended	252 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2024	Dec. 31, 1994
Arezzo Revenue Agency [Member]
Loss Contingency, Estimate of Possible Loss			$ 12.0
EOS Claim From Principal Commissioner of Customs [Member] \| EOS Power Panama Inc. [Member]
Customs Duties and Imposed Fines	$ 0.9			$ 1.4
Payment for Customs Duties and Imposed Fines and Penalties		$ 0.5
Indemnification Period (Year)	7 years