Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 2,162	$ 5,025
Receivables (less allowance for doubtful accounts at June 30, 2019, and December 31, 2018 - $24)	41,604	38,797
Inventory	118,007	108,769
Prepaid expenses	1,834	1,320
Refundable income taxes	5,404	712
Total current assets	169,011	154,623
Property, plant, and equipment	299,666	295,893
Less accumulated depreciation and amortization	(179,772)	(175,105)
Property, plant, and equipment, net	119,894	120,788
Operating lease right-of-use asset, net	6,163	0
Other assets	3,656	2,481
Total assets	298,724	277,892
Current Liabilities
Current maturities of long-term debt	393	386
Accounts payable	20,711	25,363
Accrued expenses	11,014	11,714
Total current liabilities	32,118	37,463
Long-term debt, less current maturities	40,851	21,040
Credit agreement - revolver	1,245	10,588
Operating lease liability	4,112	0
Deferred credits	1,399	1,565
Accrued retirement, health, and life insurance benefits	2,482	2,595
Other noncurrent liabilities	1,851	1,523
Deferred income taxes	2,224	1,677
Total liabilities	86,282	76,451
Commitments and Contingencies
Capital stock
Preferred, 5% non-cumulative; $10 par value; authorized 1,000 shares; issued and outstanding 437 shares	4	4
Common stock
No par value; authorized 40,000,000 shares; issued 18,115,965 shares at June 30, 2019 and December 31, 2018; and 17,024,924 and 16,856,414 shares outstanding at June 30, 2019 and December 31, 2018, respectively	6,715	6,715
Additional paid-in capital	13,117	15,375
Retained earnings	213,049	198,914
Accumulated other comprehensive loss	(97)	(164)
Treasury stock, at cost
Shares of 1,091,041 at June 30, 2019, and 1,259,551 at December 31, 2018	(20,346)	(19,403)
Total stockholders’ equity	212,442	201,441
Total liabilities and stockholders’ equity	$ 298,724	$ 277,892