Minimum [Member] Minimum [Member] Earnout liability Asset Acquisition, Contingent Consideration, Liability Less: unamortized debt issuance costs Unamortized Debt Issuance Expense Reconciliation to cash flows: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Goodwill, Acquired During Period Goodwill, Acquired During Period Range [Domain] Statistical Measurement [Domain] Cover [Abstract] Right-of-use assets Operating Lease, Right-of-Use Asset Business Segments [Axis] Segments [Axis] Fair Value, Liabilities Measured on Recurring Basis [Table Text Block] Fair Value, Liabilities Measured on Recurring Basis [Table Text Block] Trading Symbol Trading Symbol Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Summary of basic and diluted EPS Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Asset Acquisition [Table] Asset Acquisition [Table] Earnings per Share Earnings Per Share [Text Block] Cash dividends declared per common share Common Stock, Dividends, Per Share, Declared Common Stock, Dividends, Per Share, Declared Cash paid for income taxes Income Taxes Paid, Net ESPP shares issued Stock Issued During Period, Value, Employee Stock Purchase Plan Goodwill and Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] SHAREHOLDERS’ EQUITY: Equity, Attributable to Parent [Abstract] Granted, Weighted average grant date fair value (usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Miami Products Miami Products [Member] Miami Products Gain on deferred compensation assets Gain (Loss) on Investments Waterguard, Inc. Waterguard, Inc. [Member] Waterguard, Inc. Wofford Water Service, Inc. Wofford Water Service, Inc. [Member] Wofford Water Service, Inc. 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[Member] Intercoastal Trading, Inc. [Member] Intercoastal Trading, Inc. 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