Income Taxes - Schedule of Deferred Income Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred income tax assets:
Stock options	$ 5,809	$ 4,807
Inventory reserves	16	36
Allowance for doubtful accounts	12	8
Depreciation and amortization	2,351	1,274
Other reserves and accruals	430	144
Gift certificates	202	185
Net operating losses	3,833	749
Total deferred income tax assets	12,653	7,203
Less valuation allowance	(11,543)	(5,157)
Deferred income tax asset, net	1,110	2,046
Deferred income tax liability	(1,012)	(375)
Net deferred income tax asset	$ 98	$ 1,671