Operations by Business Segment (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of segment reporting information, by segment [Table Text Block]

Segment information reconciled to consolidated external reporting information follows:

	Utility		Residential and Commercial			All Other			Reconciling Adjustments				Consolidated
Three Months Ended March 31, 2018
Revenues	$	118,687	$	89,345		$	619		$	—			$	208,651
Income (loss) from operations	1,814		(3,105		)	(3,792		)	(583		)	(a)	(5,666		)
Interest expense									(1,401		)		(1,401		)
Interest income									78				78
Other income (expense), net									(1,662		)		(1,662		)
Loss before income taxes													$	(8,651	)
Segment assets, total	$	200,201	$	188,789		$	—		$	85,210		(b)	$	474,200
Three Months Ended April 1, 2017
Revenues	$	112,478	$	79,587		$	748		$	—			$	192,813
Income (loss) from operations	2,658		(3,582		)	(2,228		)	(843		)	(a)	(3,995		)
Interest expense									(1,257		)		(1,257		)
Interest income									70				70
Other income (expense), net									(1,139		)		(1,139		)
Loss before income taxes													$	(6,321	)
Segment assets, total	$	176,504	$	171,777		$	—		$	99,808		(b)	$	448,089

Reconciling adjustments from segment reporting to consolidated external financial reporting include unallocated corporate items:

(a) Reclassification of depreciation expense and allocation of corporate expenses.

(b) Corporate assets include cash, prepaid expenses, corporate facilities, enterprise-wide information systems and other nonoperating assets