Wastewater system description.

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The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.

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Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Basis of Presentation and Recent Developments (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended
	Jul. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Product Information [Line Items]
Cash, Cash Equivalents and Restricted Cash			$ 400
Other Income (Expense)		$ 200		$ 400
Wastewater system description			USA-PA currently operates the City of Perth Amboy, New Jersey's water and wastewater systems under a 20-year agreement, which expires in December 2018.
Subsequent Event [Member]
Product Information [Line Items]
Professional services contract	$ 67,000