Subsequent Events (Narrative) (Details)			9 Months Ended
	Oct. 27, 2020 USD ($) ft²	Oct. 06, 2020 USD ($) $ / shares shares	Sep. 30, 2020 USD ($)
Subsequent Event [Member]
Subsequent Event [Line Items]
Proceeds from underwritten public offering net of underwriting discounts and commissions		$ 9,100,000
Issuance of underwritten public offering share | shares		5,462,500
Underwritten common stock, per share | $ / shares		$ 0.01
Additional Issuance Of Underwritten Public Offering Share | shares		712,500
Lake Street Capital Markets L L C [Member]
Subsequent Event [Line Items]
Costs incurred in issuance of underwritten public offering			$ 1,200,000
Increase (decrease) in other current assets			1,200,000
Non-cash expenses of common stock issuance for consulting services			$ 600,000
Hayward FGHK Industrial LLC [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Area of industrial space leased | ft²	30,321
Initial term of lease	90 months
Monthly base rent	$ 27,289
Increase in lease rental expense on annual basis	$ 33,562