Note 15. Fair Value of Financial Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Assets
Cash equivalents	$ 10,118	$ 21,448
Equity securities: Consumer goods	6,421	5,808
Bonds	35,557	32,404
Options on equity securities	2,142	2,755
Non-qualified deferred compensation plan investments	2,057	2,149
Total assets at fair value	56,295	64,564
Level 1
Assets
Cash equivalents	10,118	21,448
Equity securities: Consumer goods	0	1,708
Bonds	35,557	32,404
Options on equity securities	0	0
Non-qualified deferred compensation plan investments	2,057	2,149
Total assets at fair value	47,732	57,709
Level 2
Assets
Cash equivalents	0	0
Equity securities: Consumer goods	6,421	4,100
Bonds	0	0
Options on equity securities	2,142	2,755
Non-qualified deferred compensation plan investments	0	0
Total assets at fair value	8,563	6,855
Level 3
Assets
Cash equivalents	0	0
Equity securities: Consumer goods	0	0
Bonds	0	0
Options on equity securities	0	0
Non-qualified deferred compensation plan investments	0	0
Total assets at fair value	$ 0	$ 0