Debt - Star and EBGL Loans (Details) - Subsequent Event	Jan. 31, 2020 USD ($) installment	Mar. 05, 2020 USD ($)
Star Credit Parties | Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum credit amount	$ 2,500,000.0
EBGL Credit Parties | Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum credit amount	$ 3,000,000.0
Line of credit facility, automatic extension, period	1 year
KBS Builders Inc | Star Credit Parties | Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum credit amount	$ 2,000,000.0
Number of monthly installments | installment	60
EBGL | Star Credit Parties | Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum credit amount	$ 500,000.0
Number of monthly installments | installment	12
Line of credit facility increase	$ 300,000
Board of Directors Chairman
Line of Credit Facility [Line Items]
Contractual obligation		$ 500,000.0
Board of Directors Chairman | Star Credit Parties | Revolving Credit Facility
Line of Credit Facility [Line Items]
Contractual obligation	$ 2,500,000.0
Prime Rate | Star Credit Parties | Revolving Credit Facility
Line of Credit Facility [Line Items]
Additional margin rate	3.50%
Prime Rate | EBGL Credit Parties | Revolving Credit Facility
Line of Credit Facility [Line Items]
Additional margin rate	2.75%