Long-Term Debt	12 Months Ended
Dec. 31, 2020
Debt Disclosure [Abstract]
Long-Term Debt	12. LONG-TERM DEBT Our long-term debt is comprised of a $1.5 million promissory note pursuant to the Paycheck Protection Program (the Paycheck Protection Program loan) established by the Coronavirus Aid, Relief, and Economic Security Act (the CARES Act) implemented by the U.S. Small Business Administration (SBA). We received the funds under the Paycheck Protection Program loan on April 19, 2020. The Paycheck Protection Program loan matures in April 2022 and bears interest at a per annum rate of one percent. The Paycheck Protection Program loan may be prepaid at any time prior to maturity with no prepayment penalties. The Paycheck Protection Program loan contains customary events of default relating to, among other things, payment defaults and breaches of representations and warranties. Subject to certain conditions, the Paycheck Protection Program loan and accrued interest may be forgiven in whole or in part by applying for forgiveness pursuant to the CARES Act and the Paycheck Protection Program. In order to be eligible for forgiveness, the proceeds of the Paycheck Protection Program loan must be applied to certain eligible expenses, including payroll costs, interest on certain mortgage obligations, rent payments on certain leases, and certain qualified utility payments, with not more than 40 percent of the amount applied to non-payroll costs. We have applied the proceeds from the Paycheck Protection Program loan toward qualifying expenses and on October 21, 2020, as modified December 29, 2020, applied for forgiveness of the full principal amount and all accrued interest. No assurance can be given that we will be granted forgiveness of the Paycheck Protection Program loan in whole or in part.

Long-Term Debt

12 Months Ended

Dec. 31, 2020

12. LONG-TERM DEBT

Our long-term debt is comprised of a $1.5 million promissory note pursuant to the Paycheck Protection Program (the Paycheck Protection Program loan) established by the Coronavirus Aid, Relief, and Economic Security Act (the CARES Act) implemented by the U.S. Small Business Administration (SBA). We received the funds under the Paycheck Protection Program loan on April 19, 2020. The Paycheck Protection Program loan matures in April 2022 and bears interest at a per annum rate of one percent. The Paycheck Protection Program loan may be prepaid at any time prior to maturity with no prepayment penalties. The Paycheck Protection Program loan contains customary events of default relating to, among other things, payment defaults and breaches of representations and warranties. Subject to certain conditions, the Paycheck Protection Program loan and accrued interest may be forgiven in whole or in part by applying for forgiveness pursuant to the CARES Act and the Paycheck Protection Program. In order to be eligible for forgiveness, the proceeds of the Paycheck Protection Program loan must be applied to certain eligible expenses, including payroll costs, interest on certain mortgage obligations, rent payments on certain leases, and certain qualified utility payments, with not more than 40 percent of the amount applied to non-payroll costs.

We have applied the proceeds from the Paycheck Protection Program loan toward qualifying expenses and on October 21, 2020, as modified December 29, 2020, applied for forgiveness of the full principal amount and all accrued interest. No assurance can be given that we will be granted forgiveness of the Paycheck Protection Program loan in whole or in part.