Consolidated Balance Sheets - USD ($) $ in Thousands		Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents		$ 35,677	$ 26,797
Restricted Cash		16,468	17,576
Accounts receivable, net		69,894	67,399
Income tax receivable		0	772
Notes receivable		27	29
Inventories, net		72,855	73,601
Prepaid expenses and other		2,045	1,375
Total current assets		196,966	187,549
Property, plant and equipment:
Land		3,298	3,274
Buildings		104,707	101,113
Machinery and equipment		252,544	236,087
Furniture and fixtures		17,116	16,862
Total property, plant and equipment		377,665	357,336
Less: Accumulated depreciation		184,636	179,242
Property, plant and equipment, net		193,029	178,094
Intangible assets, net		213	272
Goodwill		3,229	3,229
Right of use assets		1,641	1,683
Note receivable		542	597
Total assets		395,620	371,424
Current liabilities:
Revolving credit facility		0	0
Accounts payable		13,501	11,759
Accrued liabilities		50,684	44,269
Total current liabilities		64,185	56,028
Deferred income taxes		15,130	15,297
Other long-term liabilities		3,652	3,639
New market tax credit obligation	[1]	6,330	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, 52,044,110 and 52,078,515 issued and outstanding at March 31, 2020 and December 31, 2019, respectively		208	208
Additional paid-in capital		0	3,631
Retained earnings		306,115	286,301
Total stockholders' equity		306,323	290,140
Total liabilities and stockholders' equity		$ 395,620	$ 371,424

[1] (a) Held by variable interest entities (Note 16)