Summary of Significant Accounting Policies:Interest Rate Risk and Interest Rate Swaps (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Interest Rate Derivatives [Line Items]
Long-term debt	$ 444,210	$ 443,792
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
Interest Rate Swap [Member] \| Not Designated as Hedging Instrument [Member] \| Level 2 [Member] \| Other Noncurrent Liabilities [Member]
Interest Rate Derivatives [Line Items]
Fair value of interest rate swap agreements, Liability	300	$ 600
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 - $50 million notional amount fixed at 0.39% [Member] \| Not Designated as Hedging Instrument [Member]
Interest Rate Derivatives [Line Items]
Interest rate swaps, notional amount	$ 50,000
Interest rate swaps, forward interest rate	0.39%
ABL Term Loan Due 2025
Interest Rate Derivatives [Line Items]
Long-term debt	$ 50,000

Fixed interest rate related to the interest rate derivative.

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- Definition

Stated rate on an interest rate forward or futures contract.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

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=121590274&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
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-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959

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- Definition

Fair value as of the balance sheet date of all derivative assets not designated as hedging instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
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- Definition

Fair value as of the balance sheet date of all derivative liabilities not designated as hedging instruments.

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- Definition

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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