Revenue Recognition from Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Disaggregation of Revenue [Line Items]
Total Revenue	$ 48,714	$ 44,301
Operating Segments
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	48,681	44,267
Other Regulated Revenues	68	62
Other Non-Regulated Revenues	120	119
Total Revenue	48,869	44,448
Operating Segments | Regulated Tariff Sales | Residential
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	24,187	23,114
Operating Segments | Regulated Tariff Sales | Commercial
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	6,867	6,585
Operating Segments | Regulated Tariff Sales | Industrial
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	3,602	2,999
Operating Segments | Regulated Tariff Sales | Fire Protection
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	3,832	3,722
Operating Segments | Regulated Tariff Sales | Wholesale
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	7,224	5,014
Operating Segments | Non-Regulated Contract Operations
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	2,969	2,833
Inter-segment Elimination
Disaggregation of Revenue [Line Items]
Total Revenue	$ (155)	$ (147)