Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2021

Payables and Accruals [Abstract]

Summary of accrued expense liabilities

	March 31,		December 31,
	2021		2020
Accrued expenses	$	1,987,000	$	2,085,000
Accrued interest		209,000		199,000
Accrued payroll		1,339,000		1,253,000
Accrued vacation and sick pay		631,000		496,000
Accrued shipping expenses		478,000		433,000
Accrued legal fees		541,000		192,000
Deferred rent liability		325,000		301,000
Total accrued expenses	$	5,510,000	$	4,959,000