Lines of Credit	12 Months Ended
Dec. 31, 2018
Notes To Financial Statements [Abstract]
Lines of Credit	NOTE 9: BANK LINES OF CREDIT AND OTHER SHORT-TERM DEBT The Company maintains a $15.0 million line of credit agreement with CoBank, ACB, which is currently scheduled to expire on July 1, 2020. The Company maintains an additional line of credit of $45.0 million with RBS Citizens, N.A. (“Citizens”), with an expiration date of April 25, 2021. On December 14, 2018, the Company and Citizens agreed to increase the amount of the line of credit from $45.0 million to $75.0 million and to extend the maturity date of the Line of Credit until December 14, 2023. The Company has delivered to Citizens an Amended and Restated Promissory Note, dated December 14, 2018, evidencing the debt payable pursuant to the Line of Credit. Additionally, Avon Water maintained a $3.0 million line of credit with Northwest Community Bank, which expired on September 30, 2018, at which point it converted to other short-term debt. As of December 31, 2018 the total lines of credit available to the Company were $90.0 million. As of December 31, 2018 and 2017, the Company had $52.6 million and $19.3 million outstanding under its lines of credit, respectively. As of December 31, 2018, the Company had $37.4 million in unused lines of credit. Interest expense charged on interim bank loans will fluctuate based on market interest rates. As of December 31, 2018, the Company had $1.7 million in other short-term debt outstanding. At December 31, 2018 and 2017, the weighted average interest rates on these short-term borrowings outstanding was 4.6% and 3.4%, respectively.

NOTE 9: BANK LINES OF CREDIT AND OTHER SHORT-TERM DEBT

The Company maintains a $15.0 million line of credit agreement with CoBank, ACB, which is currently scheduled to expire on July 1, 2020. The Company maintains an additional line of credit of $45.0 million with RBS Citizens, N.A. (“Citizens”), with an expiration date of April 25, 2021. On December 14, 2018, the Company and Citizens agreed to increase the amount of the line of credit from $45.0 million to $75.0 million and to extend the maturity date of the Line of Credit until December 14, 2023. The Company has delivered to Citizens an Amended and Restated Promissory Note, dated December 14, 2018, evidencing the debt payable pursuant to the Line of Credit. Additionally, Avon Water maintained a $3.0 million line of credit with Northwest Community Bank, which expired on September 30, 2018, at which point it converted to other short-term debt. As of December 31, 2018 the total lines of credit available to the Company were $90.0 million. As of December 31, 2018 and 2017, the Company had $52.6 million and $19.3 million outstanding under its lines of credit, respectively. As of December 31, 2018, the Company had $37.4 million in unused lines of credit. Interest expense charged on interim bank loans will fluctuate based on market interest rates. As of December 31, 2018, the Company had $1.7 million in other short-term debt outstanding.

At December 31, 2018 and 2017, the weighted average interest rates on these short-term borrowings outstanding was 4.6% and 3.4%, respectively.