Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net loss	$ (5,659)	$ (6,820)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	2,484	3,624
Provision for bad debt	(227)	291
Provision for customer credits	52	83
Forgiveness of PPP Loan	(1,384)	0
Share-based compensation	1,854	1,984
Right-of-use-assets	899	1,426
Loss on disposal of assets	0	6
Changes in assets and liabilities:
Accounts receivable	2,697	9,722
Prepaid expenses and other current assets	(151)	418
Vehicle inventory	(1,076)	0
Other non-current assets	126	19
Accounts payable	306	(7,279)
Accrued expenses and other current liabilities	(344)	(325)
Lease liabilities	(993)	(1,248)
Net cash (used in) provided by operating activities	(1,416)	1,901
Cash flows from investing activities:
Purchases of property and equipment	(1,719)	(596)
Purchase of intangible asset	(325)	0
Net cash (used in) investing activities	2,044	596
Cash flows from financing activities:
Borrowings under the PPP loan	0	1,384
Payments under financing agreement	(61)	(44)
Net proceeds from stock option exercises	227	75
Net cash (used in) provided by financing activities	(18)	7,856
Net (decrease) increase in cash and cash equivalents	(3,478)	9,161
Cash and cash equivalents and restricted cash, beginning of period	15,107	5,946
Cash and cash equivalents and restricted cash, end of period	11,629	15,107
Reconciliation of cash and cash equivalents and restricted cash
Cash and cash equivalents at beginning of period	10,803	892
Restricted cash at beginning of period	4,304	5,054
Cash and cash equivalents and restricted cash, beginning of period	15,107	5,946
Cash and cash equivalents at end of period	7,315	10,803
Restricted cash at end of period	4,314	4,304
Cash and cash equivalents and restricted cash, end of period	11,629	15,107
Supplemental disclosure of cash flow information:
Cash paid for income taxes	0	1
Cash refunds for income taxes	1	849
Cash paid for interest	872	845
Supplemental schedule of non-cash investing and financing activities:
Right-of-use assets obtained in exchange for operating lease liabilities	0	1,790
Financing for the purchase of fixed assets	166	170
Purchases on account related to capitalized software	0	99
Intangible asset holdback	75	0
PNC Credit Agreement [Member]
Cash flows from financing activities:
Borrowings under PNC credit facility	0	28,564
Principal payments on PNC credit facility	0	(32,308)
CNC Credit Agreement [Member]
Cash flows from financing activities:
Borrowings under PNC credit facility	73,719	71,072
Principal payments on PNC credit facility	(73,903)	(60,887)
Reconciliation of cash and cash equivalents and restricted cash
Restricted cash at beginning of period	$ 1,000
Restricted cash at end of period		$ 1,000