DEBT (Details)	1 Months Ended	3 Months Ended	9 Months Ended
	Dec. 31, 2017 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2020 USD ($) employee agreement	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Nov. 30, 2017 USD ($)
Long-term debt
Timeframe when amount will be repaid through property taxes			2 years
Other current liabilities			$ 31,761,000	$ 8,467,000
Construction Loan Agreement
Long-term debt
Face amount	$ 25,600,000
Amortization period	20 years
Initial investment					$ 16,400,000
Amount drawn from loan			24,100,000	25,000,000.0
Interest incurred, accrued for as an interest reserve		$ 700,000	700,000
Interest costs capitalized			700,000
Debt issuance costs, net			200,000
Minimum liquidity covenant for construction loan			250,000,000
Construction Loan Agreement | 1-month LIBOR
Long-term debt
Variable rate	2.25%
Tax Increment Financing
Long-term debt
Face amount			$ 4,600,000	4,600,000
Number of agreements | agreement			2
Number of jobs required to create and maintain | employee			500
Term			5 years
Tax Increment Financing | Short-term other liabilities
Long-term debt
Other current liabilities			$ 300,000	$ 2,700,000
City Letter of Credit
Long-term debt
Interest-only payment, period	24 months
City Letter of Credit | Construction Loan Agreement
Long-term debt
Maximum borrowing capacity						$ 600,000