Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 210
-Section S99
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Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Debt - Western Alliance Bank Business Financing Agreement (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019	Jul. 31, 2017
Debt Instrument [Line Items]
Debt outstanding	$ 0	$ 5,507,000
Western Alliance Bank Loan Agreement
Debt Instrument [Line Items]
Current borrowing capacity			$ 1,500,000
Repayments of debt	800,000
Debt outstanding	$ 0