Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash	$ 423	$ 164
Accounts receivable (less allowance for doubtful accounts of $203)	20,669	18,101
Inventory, net	111,596	111,380
Other current assets	7,177	7,471
Total current assets	139,865	137,116
Property, plant and equipment, net	163,693	164,983
Other long-term assets	1,079	947
Total assets	304,637	303,046
Current liabilities:
Accounts payable	19,151	12,632
Accrued employment costs	3,087	1,826
Current portion of long-term debt	1,893	16,713
Other current liabilities	840	2,722
Total current liabilities	24,971	33,893
Long-term debt, net	49,672	33,471
Deferred income taxes	4,214	5,725
Other long-term liabilities, net	4,305	4,277
Total liabilities	83,162	77,366
Stockholders’ equity:
Senior preferred stock, par value $0.001 per share; 1,980,000 shares authorized; 0 shares issued and outstanding
Common stock, par value $0.001 per share; 20,000,000 shares authorized; 8,894,822 and 8,883,788 shares issued, respectively	9	9
Additional paid-in capital	94,585	94,276
Accumulated other comprehensive loss	(30)	(45)
Retained earnings	126,911	131,440
Total stockholders’ equity	221,475	225,680
Total liabilities and stockholders’ equity	$ 304,637	$ 303,046