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Stockholders' Equity - Stock Options (Details) - USD ($)										3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 28, 2020	Aug. 21, 2020	Apr. 15, 2020	Apr. 01, 2020	Mar. 31, 2020	Mar. 13, 2020	Feb. 28, 2020	Jan. 31, 2020	Jan. 01, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Number of Options
Outstanding, beginning balance (in shares)									7,222,625			7,222,625
Granted (in shares)												481,250
Canceled (in shares)												0
Exercised (in shares)												0
Expired/Forfeited (in shares)												(200,000)
Outstanding, ending balance (in shares)										7,503,875		7,503,875		7,222,625
Exercisable (in shares)										3,067,125		3,067,125
Weighted Average Exercise Price
Outstanding, beginning balance (in dollars per share)									$ 3.33			$ 3.33
Granted (in dollars per share)												1.43
Canceled (in dollars per share)												0.00
Exercised (in dollars per share)												0.00
Expired/Forfeited (in dollars per share)												1.55
Outstanding, ending balance (in dollars per share)										$ 3.26		3.26		$ 3.33
Exercisable (in dollars per share)										$ 4.92		$ 4.92
Other disclosures
Outstanding Weighted Average Remaining Contractual Life (in Years)												5 years 22 days		5 years 9 months 26 days
Exercisable Weighted Average Remaining Contractual Life (in Years)												1 year 5 months 12 days
Aggregate Intrinsic Value, Outstanding										$ 0		$ 0		$ 0
Aggregate Intrinsic Value, Exercisable										0		$ 0
Board Observer
Number of Options
Granted (in shares)									5,000
Weighted Average Exercise Price
Granted (in dollars per share)									$ 4.00
Other disclosures
Vesting percentage per year									50.00%
Consultant
Number of Options
Granted (in shares)		22,750	13,500					75,000
Weighted Average Exercise Price
Granted (in dollars per share)		$ 1.00	$ 3.00					$ 1.57
Other disclosures
Awards that vested (as a percent)												33.33%
Vesting percentage per year			33.33%
Employee
Number of Options
Granted (in shares)	15,000				50,000		50,000
Weighted Average Exercise Price
Granted (in dollars per share)	$ 0.71				$ 0.61		$ 1.40
Other disclosures
Vesting percentage per year	33.33%				33.33%
A certain key employee
Number of Options
Granted (in shares)						50,000
Weighted Average Exercise Price
Granted (in dollars per share)						$ 5.50
Non Management Directors
Number of Options
Granted (in shares)				200,000
Weighted Average Exercise Price
Granted (in dollars per share)				$ 0.50
Other disclosures
Vesting percentage per year				50.00%
Employee Stock Option
Number of Options
Granted (in shares)												481,250
Employee Stock Option
Other disclosures
Compensation expense										45,000	$ 66,000	$ 158,000	$ 382,000
Unrecognized compensation expense										$ 204,000		$ 204,000
Weighted average period of recognition												1 year 2 months 27 days
Employee Stock Option | Five year expiration
Stockholders' Equity
Expiration period												5 years
Employee Stock Option | Seven year expiration
Stockholders' Equity
Expiration period												7 years
Employee Stock Option | Ten year expiration
Stockholders' Equity
Expiration period												10 years

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