UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income (loss)	$ 6,000	$ (5,435,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,266,000	2,278,000
Provision for bad debts	(191,000)	94,000
Provision for customer credits	200,000	33,000
Forgiveness of PPP loan	(1,384,000)	0
Share-based compensation	924,000	1,028,000
Right-of-use assets	453,000	767,000
Changes in assets and liabilities:
Accounts receivable	(914,000)	9,245,000
Prepaid expenses and other current assets	(553,000)	(674,000)
Other assets	134,000	(84,000)
Accounts payable	950,000	(8,169,000)
Accrued expenses and other current liabilities	309,000	(147,000)
Lease liabilities	(492,000)	(805,000)
Net cash provided by (used in) operating activities	708,000	(1,869,000)
Cash flows from investing activities:
Purchases of property and equipment	(770,000)	(388,000)
Net cash used in investing activities	(770,000)	(388,000)
Cash flows from financing activities:
Borrowings under PNC credit facility	0	28,564,000
Principal payments on PNC credit facility	0	(32,308,000)
Borrowings under CNC credit facility	35,471,000	33,201,000
Principal payments on CNC credit facility	(35,501,000)	(26,020,000)
Borrowings under PPP Note	0	1,384,000
Payments under financing agreement	(33,000)	0
Proceeds from exercise of stock options	176,000	0
Net cash provided by financing activities	113,000	4,821,000
Net increase in cash and cash equivalents	51,000	2,564,000
Cash and cash equivalents and restricted cash, beginning of period	15,107,000	5,946,000
Cash and cash equivalents and restricted cash, end of period	15,158,000	8,510,000
Reconciliation of cash and cash equivalents and restricted cash
Cash and cash equivalents at beginning of period	10,803,000	892,000
Restricted cash at beginning of period	4,304,000	5,054,000
Cash and cash equivalent and restricted cash at beginning of period	15,107,000	5,946,000
Cash and cash equivalents at end of period	10,849,000	5,210,000
Restricted cash at end of period	4,309,000	3,300,000
Cash and cash equivalent and restricted cash at end of period	15,158,000	8,510,000
Supplemental disclosure of cash flow information:
Cash paid for income taxes	0	0
Cash refunds for income taxes	1,000	381,000
Cash paid for interest	435,000	449,000
Supplemental disclosure of non-cash financing activities:
Right-of-use assets obtained in exchange for operating lease liabilities	0	1,485,000
Purchases on account related to capitalized software	$ 276,000	$ 0