Line of Credit and Long-term Debt - Outstanding Indebtedness and Respective Principal Maturities (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Maturities of Long-term Debt [Abstract]
2020	$ 4,183
2021	4,366
2022	4,549
2023	4,772
2024	4,981
Thereafter	39,046
Total	61,897
Term Loan
Maturities of Long-term Debt [Abstract]
2020	3,881
2021	4,051
2022	4,221
2023	4,429
2024	4,624
Thereafter	37,562
Total	58,768
Promissory note
Maturities of Long-term Debt [Abstract]
2020	302
2021	315
2022	328
2023	343
2024	357
Thereafter	1,484
Total	$ 3,129

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
-Paragraph 4
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
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