Consolidated Balance Sheets $ in Thousands, $ in Millions		Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Current assets:
Cash and cash equivalents		$ 79,025	$ 26,797
Restricted cash		3,263	17,576
Accounts receivable, net of allowance for credit losses of $506 and $353, respectively		47,387	67,399
Income tax receivable		4,587	772
Note receivable		31	29
Inventories, net		82,219	73,601
Prepaid expenses and other		3,739	1,375
Total current assets		220,251	187,549
Property, plant and equipment:
Land		4,072	3,274
Buildings		122,171	101,113
Machinery and equipment		281,266	236,087
Furniture and fixtures		18,956	16,862
Total property, plant and equipment		426,465	357,336
Less: Accumulated depreciation		203,125	179,242
Property, plant and equipment, net		223,340	178,094
Intangible assets, net		38	272
Goodwill		3,229	3,229
Right of use assets		1,571	1,683
Note receivable, long-term		579	597
Total assets		449,008	371,424
Current liabilities:
Revolving credit facility		0	0
Accounts payable		12,447	11,759
Accrued liabilities		46,586	44,269
Total current liabilities		59,033	56,028
Deferred tax liabilities		28,324	15,297
Other long-term liabilities		4,423	3,639
New market tax credit obligation	[1]	6,363	6,320
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $.001 par value, 5,000,000 shares authorized, no shares issued		0	0
Common stock, $.004 par value, 100,000,000 shares authorized, 52,224,767 and 52,078,515 issued and outstanding at December 31, 2020 and 2019, respectively		209	208
Additional paid-in capital		5,161	3,631
Retained earnings		345,495	286,301
Total stockholders’ equity		350,865	290,140
Total liabilities and stockholders’ equity		$ 449,008	$ 371,424

[1]      (a) Held by variable interest entities (Note 18)