ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from External Customer [Line Items]

Schedule of Cash and Cash Equivalents [Table Text Block]

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Company's consolidated balance sheets to the total amount presented in the consolidated statement of cash flows (in thousands):

	December 31, 2019		December 31, 2018
Cash and cash equivalents at beginning of period	$	21,845	$	37,682
Current restricted cash at beginning of period	1,514		1,514
Long-term restricted cash at beginning of period	7,225		7,565
Cash, cash equivalents, and restricted cash at beginning of period	$	30,584	$	46,761
Cash and cash equivalents at end of period	$	24,762	$	21,845
Current restricted cash at end of period	943		1,514
Long-term restricted cash at end of period	5,295		7,225
Cash, cash equivalents, and restricted cash at end of period	$	31,000	$	30,584

Revenue from External Customers by Products and Services [Table Text Block]

Our sales mix for the years ended December 31, was as follows (in millions, except percentages):

	2019		Percentage		2018		Percentage
Consolidated product sales	$	154.6	98.0	%	$	170.2	98.0	%
Consolidated pack sales and associate fees(a)	2.3		1.5	%	2.5		1.5	%
Consolidated other	0.8		0.5	%	0.9		0.5	%
Total consolidated net sales	$	157.7	100.0	%	$	173.6	100.0	%

Estimated useful lives of fixed assets

The estimated useful lives of fixed assets are as follows:

	Estimated useful life
Office furniture and equipment	5 to 7 years
Computer hardware and software	3 to 5 years
Automobiles	3 to 5 years
Leasehold improvements (1)	2 to 10 years

⁽¹⁾The Company amortizes leasehold improvements over the shorter of the useful estimated life of the leased asset or the lease term.

Loyalty deferred revenue

Loyalty program	(in thousands)
Loyalty deferred revenue as of January 1, 2018	$	6,406
Loyalty points forfeited or expired	(4,332		)
Loyalty points used	(11,398		)
Loyalty points vested	12,469
Loyalty points unvested	1,086
Loyalty deferred revenue as of December 31, 2018	$	4,231

Loyalty deferred revenue as of January 1, 2019	$	4,231
Loyalty points forfeited or expired	(4,348		)
Loyalty points used	(9,127		)
Loyalty points vested	11,320
Loyalty points unvested	1,051
Loyalty deferred revenue as of December 31, 2019	$	3,127

Sales return reserve

For the years ended December 31, 2019 and December 31, 2018, our sales return reserve consisted of the following (in thousands):

Sales reserve as of January 1, 2018	$	117
Provision related to sales made in current period	1,198
Adjustment related to sales made in prior periods	(10		)
Actual returns or credits related to current period	(1,125		)
Actual returns or credits related to prior periods	(104		)
Sales reserve as of December 31, 2018	$	76
Sales reserve as of January 1, 2019	$	76
Provision related to sales made in current period	1,037
Adjustment related to sales made in prior periods	31
Actual returns or credits related to current period	(973		)
Actual returns or credits related to prior periods	(103		)
Sales reserve as of December 31, 2019	$	68

Concentration risk

Revenue from these products were as follows for the years ended December 31, 2019 and 2018 (in thousands, except percentages):

	2019				2018
	Sales by product		% of total net sales		Sales by product		% of total net sales
Ambrotose Life®	$	34,975	22.2	%	$	18,824	10.9	%
Advanced Ambrotose®	22,390		14.2	%	44,054		25.4	%
TruHealth™	16,193		10.3	%	17,537		10.1	%
Manapol® Powder	8,793		5.6	%	8,636		5.0	%
GI-Pro Balance	6,559		4.2	%	7,187		4.2	%
Total	$	88,910	56.5	%	$	96,238	55.6	%