CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 29,655	$ 33,153
Accounts receivable, net	10,446	10,347
Inventories	15,382	14,974
Prepaid expenses and other	879	701
Total current assets	56,362	59,175
Other assets:
Note receivable from affiliate	38,200	27,400
Goodwill	23,742	23,742
Other noncurrent	590	590
Total other assets	62,532	51,732
Property and equipment:
Land	4,935	4,935
Buildings	22,774	22,541
Equipment	67,373	65,570
Construction in progress	569	1,098
Gross property and equipment	95,651	94,144
Less accumulated depreciation	63,586	61,071
Net property and equipment	32,065	33,073
Total assets	150,959	143,980
Current liabilities:
Accounts payable and accrued liabilities	10,792	11,882
Income taxes payable to affiliate	470	1,441
Total current liabilities	11,262	13,323
Noncurrent liabilities -
Deferred income taxes	3,112	4,887
Stockholders' equity:
Preferred stock, $.01 par value; 1,000 shares authorized, none issued
Additional paid-in capital	55,612	55,515
Retained earnings	80,849	70,131
Total stockholders' equity	136,585	125,770
Total liabilities and stockholders’ equity	150,959	143,980
Commitments and contingencies (Note 10)
Class A Common Stock
Stockholders' equity:
Common stock	24	24
Total stockholders' equity	24	24
Class B Common Stock
Stockholders' equity:
Common stock	100	100
Total stockholders' equity	$ 100	$ 100