CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 70,205	$ 76,579
Accounts receivable, net	17,755	15,546
Inventories, net	28,082	25,642
Prepaid expenses and other	3,500	2,464
Total current assets	119,542	120,231
Other assets:
Note receivable from affiliate	18,100	18,700
Goodwill	23,742	23,742
Other noncurrent	597	597
Total other assets	42,439	43,039
Property and equipment:
Land	5,071	5,071
Buildings	23,161	23,161
Equipment	72,649	70,664
Construction in progress	1,713	2,028
Gross property and equipment	102,594	100,924
Less accumulated depreciation	72,697	71,742
Net property and equipment	29,897	29,182
Total assets	191,878	192,452
Current liabilities:
Accounts payable and accrued liabilities	11,630	14,724
Income taxes payable to affiliate	2,584	1,722
Total current liabilities	14,214	16,446
Noncurrent liabilities -
Deferred income taxes	2,687	2,918
Stockholders' equity:
Additional paid-in capital	54,780	54,780
Retained earnings	120,073	118,184
Total stockholders' equity	174,977	173,088
Total liabilities and stockholders' equity	191,878	192,452
Commitments and contingencies (Note 1)
Class A Common Stock
Stockholders' equity:
Common stock	$ 124	$ 124