Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 36,332	$ 31,551
Trade accounts receivable, net of allowances of $541 in 2022 and $289 in 2021	104,062	91,202
Inventories	62,604	69,098
Prepaid expenses and other current assets	20,698	18,539
Total current assets	223,696	210,390
Property, plant, and equipment:
Land and building	24,420	26,380
Machinery and equipment	342,274	345,454
Automobiles and trucks	14,079	16,174
Chemical plants	59,402	61,565
Construction in progress	12,776	5,349
Total property, plant, and equipment	452,951	454,922
Less accumulated depreciation	(358,233)	(365,946)
Net property, plant, and equipment	94,718	88,976
Other assets:
Patents, trademarks and other intangible assets, net of accumulated amortization of $45,022 in 2022 and $44,323 in 2021	34,752	36,958
Operating lease right-of-use assets	35,127	36,973
Investments	14,167	11,233
Other assets	14,154	13,736
Total other assets	98,200	98,900
Total assets	416,614	398,266
Current liabilities:
Trade accounts payable	44,999	37,943
Current portion of long-term debt	11	0
Compensation and employee benefits	23,485	20,811
Operating lease liabilities, current portion	8,255	8,108
Accrued taxes	7,295	7,085
Accrued liabilities and other	24,155	21,810
Current liabilities associated with discontinued operations	1,367	1,385
Total current liabilities	109,567	97,142
Long-term debt, net	153,191	151,936
Operating lease liabilities	29,160	31,429
Asset retirement obligations	13,244	12,984
Deferred income taxes	1,432	1,669
Other liabilities	4,484	4,543
Total long-term liabilities	201,511	202,561
Commitments and contingencies
Equity:
Common stock, par value 0.01 per share; 250,000,000 shares authorized at June 30, 2022 and December 31, 2021; 131,394,102 shares issued at June 30, 2022 and 130,075,838 shares issued at December 31, 2021	1,314	1,301
Additional paid-in capital	476,381	475,624
#REF!	(19,957)	(19,957)
Accumulated other comprehensive loss	(50,154)	(46,932)
Retained deficit	(300,867)	(310,332)
Total TETRA stockholders’ equity	106,717	99,704
Noncontrolling interests	(1,181)	(1,141)
Total equity	105,536	98,563
Total liabilities and equity	$ 416,614	$ 398,266