Income Taxes - Summary of Deferred Tax Assets and Deferred Tax Liabilities Including Valuation Allowance (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
DEFERRED TAX ASSETS:
Taxable meter deposits	$ 23,000	$ 23,000
Net operating loss carry forwards	453,000	2,343,000
Balterra intangible asset acquisition	224,000	224,000
Deferred gain on Sale of GWM	1,067,000	1,086,000
Deferred gain on ICFA funds received	4,320,000	4,317,000
Equity investment loss	426,000	407,000
Deferred Tax Assets, Property, Plant and Equipment		332,000
Deferred Tax Asset, AIAC	1,264,000
Other	1,059,000	958,000
Total deferred tax assets	8,836,000	9,690,000
Valuation allowance	0	0
Net deferred tax asset	8,836,000	9,690,000
DEFERRED TAX LIABILITIES:
Regulatory liability	(286,000)	(301,000)
CP Water intangible asset acquisition	(381,000)	(381,000)
ICFA intangible asset	(807,000)	(818,000)
Property,  plant and equipment	(11,302,000)	(9,773,000)
Gain on condemnation of Valencia	(120,000)	(2,145,000)
Other Liabilities	858,000	623,000
Total deferred tax liabilities	(13,754,000)	(14,041,000)
Net deferred tax liability	$ (4,918,000)	$ (4,351,000)