Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net loss	$ (1,673)	$ (4,439)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Loss (gain) on disposal of assets and impairment of long-lived assets	(17)	636
Depreciation and amortization	1,102	1,016
Right-of-use assets amortization	475	507
Stock-based compensation	558	649
Interest expense from debt issuance costs	24	369
Changes in operating assets and liabilities:
Trade accounts receivable	971	2,616
Contract assets	(762)	(283)
Prepaid expenses and other current assets	(864)	117
Income tax receivable	74	60
Other assets	(2)	85
Accrued salaries and benefits	(2,541)	799
Accounts payable	67	458
Contract liabilities and other current liabilities	(1,815)	(114)
Estimated liability for appeals and disputes	281	3,359
Lease liabilities	(536)	(591)
Other liabilities	7	(422)
Net cash (used in) provided by operating activities	(4,651)	4,822
Cash flows from investing activities:
Purchase of property, equipment, and leasehold improvements	(700)	(826)
Net cash used in investing activities	(700)	(826)
Cash flows from financing activities:
Repayment of notes payable	(125)	(863)
Debt issuance costs paid	(2)	0
Taxes paid related to net share settlement of stock awards	0	(23)
Proceeds from exercise of warrants	5,563	0
Net cash provided by (used in) financing activities	5,436	(886)
Net increase in cash, cash equivalents and restricted cash	85	3,110
Cash, cash equivalents and restricted cash at beginning of period	19,550	18,296
Cash, cash equivalents and restricted cash at end of period	19,635	21,406
Reconciliation of the Consolidated Statements of Cash Flows to the Consolidated Balance Sheets:
Cash and cash equivalents	17,432	19,203
Restricted cash	2,203	2,203
Total cash, cash equivalents and restricted cash at end of period	19,635	21,406
Supplemental disclosures of cash flow information:
Cash paid for income taxes	1	432
Cash paid for interest	$ 176	$ 977