Long-Term Debt - Summary of long term debt (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument
Long-term debt	$ 6,019	$ 3,133
Less current portion	(849)	(723)
Long-term debt, Noncurrent	5,170	2,410
Line of credit payable to a financial institution; Interest rate option of bank prime or Libor plus 1.4% (3.1085% as of December 31,2019)
Debt Instrument
Long-term debt	3,000	0
Term loan payable to a financial institution; Interest rate option of bank prime or Libor plus 1.4% (3.1085% as of December 31, 2019), monthly prinicipal payments of $21,833 through 2021 with a balloon payment of $786,000 due December 1, 2021
Debt Instrument
Long-term debt	1,310	1,572
Term loan payable to a financial institution; Interest rate option of bank prime or Libor plus 1.4% (3.1085% as of December 31, 2019), monthly prinicipal payments of $23,810 through December 1, 2021
Debt Instrument
Long-term debt	571	857
Equipment note obligations; Interest rate fixed for term of each funding based upon the Lender's lease pricing at time of funding. (Interest rate/factor 3.3943% - 3.8527% at time of funding
Debt Instrument
Long-term debt	670	0
Equipment financing lease obligations; Interest rate fixed for term of each funding based upon the Lender's lease pricing at time of funding. (Interest rate/factor 1.822758% - 1.869304% at time of funding)
Debt Instrument
Long-term debt	$ 468	$ 704

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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.

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Amount of long-term debt and lease obligation, classified as current.

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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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