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Rate Matters	12 Months Ended
	Dec. 31, 2021
Rate Matters [Abstract]
Rate Matters	10.  Rate Matters From time to time, the Company files applications for rate increases with the PPUC and is granted rate relief as a result of such requests.  Most recently, the PPUC authorized an increase in rates effective March 1, 2019.  The company anticipates that it will file a rate increase request in 2022. The PPUC permits water utilities to collect a distribution system improvement charge, or DSIC. The DSIC allows the Company to add a charge to customers’ bills for qualified replacement costs of certain infrastructure without submitting a rate filing.  This surcharge mechanism typically adjusts periodically based on additional qualified capital expenditures completed or anticipated in a future period.  The DSIC is capped at 5% of base rates, and is reset to zero when new base rates that reflect the costs of those additions become effective or when a utility’s earnings exceed a regulatory benchmark.  The Company's earnings are currently below the regulatory benchmark, allowing the Company to collect DSIC.  The DSIC provided revenues of $627 in 2021 and $0 in 2020.  The DSIC is subject to audit by the PPUC.

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- Definition

The entire disclosure for public utilities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-URI http://asc.fasb.org/topic&trid=2156578

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