Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash	$ 15,460	$ 23,076
Accounts and other receivables, less allowance for credit losses of $2,635 in 2021 and $3,086 in 2020	100,494	110,575
Unbilled revenue	38,254	28,100
Prepaid expenses and other current assets	22,537	15,186
Assets held for sale	40,875	42,463
Total current assets	217,620	219,400
Property, plant and equipment	20,195	20,765
Accumulated depreciation	(16,315)	(16,115)
Property, plant and equipment, net	3,880	4,650
Operating lease right-of-use assets	17,752	20,862
Goodwill	120,483	120,589
Intangible assets, net	4,641	5,656
Other assets	9,012	10,619
Total assets	373,388	381,776
Current liabilities:
Accounts payable and accrued expenses	83,583	91,572
Current portion of operating lease liabilities	5,382	5,523
Deferred revenue	16,511	16,509
Liabilities held for sale	4,823	5,868
Total current liabilities	110,299	119,472
Long-term debt	8,995	12,748
Long-term portion of operating lease liabilities	13,878	16,260
Other liabilities	9,386	9,950
Total liabilities	142,558	158,430
Stockholders’ equity:
Common stock, par value $0.01 per share	175	173
Additional paid-in capital	105,696	103,225
Retained earnings	142,499	138,296
Treasury stock at cost	0	(25)
Accumulated other comprehensive loss	(17,540)	(18,323)
Total stockholders’ equity	230,830	223,346
Total liabilities and stockholders' equity	$ 373,388	$ 381,776