Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income (loss)	$ 2,993	$ (1,516)
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities:
Depreciation and amortization	1,922	2,062
Provision for credit losses / doubtful accounts	52	56
Stock-based compensation expense	1,133	599
Noncash operating lease expense	976	1,157
Amortization of debt issuance costs	38	32
Deferred income tax provision	(63)	(77)
Loss on sale of property and equipment	215	36
Loss on early termination of operating lease	0	817
Loss on change in fair value of contingent consideration	141	0
Loss on change in fair value of interest rate swap	156	0
Changes in operating assets and liabilities:
Accounts receivable	24,581	(19,698)
Contract assets	(2,737)	8,320
Other current assets	(2,743)	(2,130)
Accounts payable, including retainage	(14,929)	(105)
Prepaid income taxes	(44)	(47)
Accrued taxes payable	686	(501)
Contract liabilities	868	7,732
Operating lease liabilities	(934)	(1,117)
Accrued expenses and other current liabilities	(3,170)	1,419
Other long-term liabilities	225	(4)
Net cash provided by (used in) operating activities	9,366	(2,965)
Cash flows from investing activities:
Proceeds from sale of property and equipment	101	39
Purchase of property and equipment	(923)	(169)
Net cash used in investing activities	(822)	(130)
Cash flows from financing activities:
Payments on Wintrust and A&R Wintrust Term Loans	(1,857)	(1,857)
Proceeds from A&R Wintrust Revolving Loan (as defined in Note 5)	0	9,400
Payments on finance leases	(639)	(660)
Taxes paid related to net-share settlement of equity awards	(847)	(363)
Proceeds from contributions to Employee Stock Purchase Plan	174	165
Net cash (used in) provided by financing activities	(3,169)	6,685
Increase (decrease) in cash, cash equivalents and restricted cash	5,375	3,590
Cash, cash equivalents and restricted cash, beginning of period	36,114	14,589
Cash, cash equivalents and restricted cash, end of period	41,489	18,179
Noncash investing and financing transactions:
Right of use assets obtained in exchange for new operating lease liabilities	742	0
Right of use assets obtained in exchange for new finance lease liabilities	1,402	864
Right of use assets disposed or adjusted modifying operating lease liabilities	0	(1,276)
Right of use assets disposed or adjusted modifying finance lease liabilities	(1)	(19)
Interest paid	657	459
Cash paid for income taxes	$ 44	$ 9