UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 10,849,000	$ 10,803,000
Restricted cash	4,309,000	4,304,000
Accounts receivable, net of allowances for bad debts and customer credits of $326 and $406 at June 30, 2021, and December 31, 2020, respectively	14,860,000	13,955,000
Prepaid expenses and other current assets	1,400,000	847,000
Total current assets	31,418,000	29,909,000
Property and equipment, net	3,537,000	2,953,000
Right-of-use assets	2,439,000	2,892,000
Intangible assets, net	3,929,000	4,733,000
Other assets	508,000	642,000
Total assets	41,831,000	41,129,000
Current liabilities:
Accounts payable	8,459,000	7,233,000
Borrowings under revolving credit facility	10,155,000	10,185,000
Current portion of the PPP Loan	0	1,384,000
Accrued employee-related benefits	2,025,000	2,123,000
Other accrued expenses and other current liabilities	945,000	538,000
Current portion of lease liabilities	951,000	1,015,000
Current portion of financing debt	64,000	65,000
Total current liabilities	22,599,000	22,543,000
Lease liabilities, net of current portion	1,763,000	2,191,000
Financing debt, net of current portion	28,000	60,000
Total liabilities	24,390,000	24,794,000
Stockholders' equity:
Common stock, $0.001 par value; 55,000,000 shares authorized, 13,465,871 and 13,169,204 shares issued and outstanding at June 30, 2021 and December 31, 2020, respectively	13,000	13,000
Additional paid-in capital	367,187,000	366,087,000
Accumulated deficit	(349,759,000)	(349,765,000)
Total stockholders' equity	17,441,000	16,335,000
Total liabilities and stockholders' equity	41,831,000	41,129,000
Series A
Stockholders' equity:
Preferred stock, $0.001 par value, 11,445,187 shares authorized,Series A Preferred Stock, 2,000,000 shares authorized, none- issued and outstanding at June 30, 2021, and December 31, 2020	$ 0	$ 0