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Summary of Significant Accounting Policies:Interest Rate Risk and Interest Rate Swaps (Details) - USD ($) $ in Thousands	1 Months Ended
	Nov. 30, 2018	Sep. 30, 2019	Dec. 31, 2018	Mar. 31, 2016	Feb. 16, 2016
Interest Rate Derivatives [Line Items]
Long-term debt		$ 440,265	$ 439,428
Term Loans Due 2022 and 2026 [Member]
Interest Rate Derivatives [Line Items]
Long-term debt		95,000
Term Loan Due 2026 [Member]
Interest Rate Derivatives [Line Items]
Liquidation of Derivative Notional Amount	$ 30,000
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member] | Level 2 [Member] | Other assets [Member]
Interest Rate Derivatives [Line Items]
Fair value of interest rate swap agreements, Asset		700	3,800
Interest Rate Swap - $50 million notional amount fixed at 1.007% [Member] | Not Designated as Hedging Instrument [Member]
Interest Rate Derivatives [Line Items]
Interest rate swaps, notional amount					$ 50,000
Interest rate swaps, fixed interest rate					1.007%
Interest Rate Swap - $75 million notional amount fixed at 1.256% [Member] | Not Designated as Hedging Instrument [Member]
Interest Rate Derivatives [Line Items]
Interest rate swaps, notional amount				$ 75,000
Interest rate swap – $50 million and $45 million notional amount fixed at 1.007% and 1.256% [Member] | Not Designated as Hedging Instrument [Member]
Interest Rate Derivatives [Line Items]
Interest rate swaps, notional amount		$ 95,000	$ 95,000
Interest Rate Swap - $45 million notional amount fixed at 1.256% [Member] | Not Designated as Hedging Instrument [Member]
Interest Rate Derivatives [Line Items]
Interest rate swaps, notional amount				$ 45,000
Interest rate swaps, fixed interest rate				1.256%

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959

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