Consolidated Statements of Operations - USD ($) shares in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Consolidated Statements of Operations
Net sales	$ 113,276,000	$ 100,887,000
Costs and expenses:
Cost of sales (exclusive of depreciation and amortization)	88,723,000	78,033,000
Depreciation and amortization	1,962,000	1,472,000
Selling and administrative	32,162,000	22,679,000
Charges related to write off of deferred development		6,840,000
Charges related to write off of overpayment of prepaid royalties		627,000
Mining asset impairment	22,492,000
Gain on legal settlement	(14,781,000)
Loss on legal settlement	6,800,000
Gain on disposition of property and equipment	(1,237,000)
Operating loss	(22,845,000)	(8,764,000)
Interest income	362,000	76,000
Interest expense	(371,000)	(539,000)
Other income, net	80,000	25,000
Loss from continuing operations before income taxes	(22,774,000)	(9,202,000)
Benefit for income taxes	5,396,000	2,500,000
Loss from continuing operations	(17,378,000)	(6,702,000)
Income from discontinued operations net of income tax provision of $1,080 and $315	3,479,000	846,000
Net loss	$ (13,899,000)	$ (5,856,000)
Basic and diluted loss per share:
Loss from continuing operations	$ (10.15)	$ (3.95)
Income from discontinued operations	2.03	0.50
Basic and diluted loss per share (in dollar per share)	$ (8.12)	$ (3.45)
Average shares outstanding (in shares)	1,711	1,697