Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue
Total revenue	$ 10,543,000	$ 16,059,000	$ 20,968,000	$ 50,196,000
Operating expenses
Selling, general and administrative	9,762,000	8,996,000	20,035,000	17,751,000
Research and development	154,000	1,114,000	181,000	2,672,000
Total operating expenses	11,613,000	12,266,000	24,083,000	28,910,000
(Loss) income from operations	(1,070,000)	3,793,000	(3,115,000)	21,286,000
Other income (expense)
Interest expense	(2,372,000)	(2,672,000)	(4,774,000)	(5,281,000)
Gain on forgiveness of Paycheck Protection Program loan			2,325,000
Other income—related party	6,406,000	2,532,000	7,988,000	2,532,000
Other (expense) income	(489,000)	80,000	54,000	(368,000)
Total other income (expense), net	3,545,000	(60,000)	5,593,000	(3,117,000)
Income before income taxes	2,475,000	3,733,000	2,478,000	18,169,000
Provision for income taxes	17,000	0	18,000	18,000
Net income	$ 2,458,000	$ 3,733,000	$ 2,460,000	$ 18,151,000
Earnings per share
Basic	$ 0.10	$ 0.14	$ 0.10	$ 0.66
Diluted	$ 0.08	$ 0.11	$ 0.08	$ 0.53
Shares used in computing earnings per share
Basic	25,345	27,461	25,751	27,444
Diluted	32,081	34,201	32,496	34,192
Product Sales
Revenue
Revenue	$ 10,511,000	$ 11,059,000	$ 20,920,000	$ 19,696,000
Operating expenses
Cost of product sales, license revenue	1,691,000	2,156,000	3,856,000	4,887,000
License and Other Revenue
Revenue
Revenue	32,000	$ 5,000,000	48,000	30,500,000
Operating expenses
Cost of product sales, license revenue	$ 6,000		$ 11,000	$ 3,600,000