Business Description and Significant Accounting Policies - Narrative (Details)		3 Months Ended		9 Months Ended	12 Months Ended
	Oct. 01, 2019 USD ($) segment	Dec. 31, 2019 USD ($) segment	Mar. 31, 2017 USD ($)	Sep. 30, 2019 segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jan. 01, 2019 USD ($)
Property, Plant and Equipment [Line Items]
Cash		$ 4,602,000			$ 4,602,000	$ 2,007,000
Restricted cash		$ 93,000			$ 93,000
Ownership percentage in subsidiary		100.00%			100.00%
Number of operating segments | segment	1	2		1
Allowance for doubtful accounts		$ 19,000			$ 19,000	8,000
Inventory reserve		261,000			261,000
Deferred revenue	$ 2,231,000	1,901,000			1,901,000	43,000
Deferred revenue, revenue recognized		352,000	$ 350,000			32,000
Capitalized costs	87,500
Impairment of fixed assets					0	0
Estimated increase total assets, upon adoption		3,117,000			3,117,000
Estimated increase total liabilities, upon adoption		$ 3,314,000			3,314,000
Accounting Standards Update 2016-02
Property, Plant and Equipment [Line Items]
Estimated increase total assets, upon adoption	3,376,000						$ 99,000
Estimated increase total liabilities, upon adoption	$ 3,578,000						$ 111,000
Incremental borrowing rate	6.00%						7.75%
Software and Software Development Costs
Property, Plant and Equipment [Line Items]
Capitalized computer software, additions					0	265,000
Amortization					241,000	372,000
Asset impairment					22,000	138,000
Revenue
Property, Plant and Equipment [Line Items]
Excise and sales taxes					390,000	440,000
Cost of Revenue
Property, Plant and Equipment [Line Items]
Excise and sales taxes					$ 390,000	$ 446,000
Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life					3 years
Minimum | Software and Software Development Costs
Property, Plant and Equipment [Line Items]
Estimated useful life					3 years
Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life					10 years
Maximum | Software and Software Development Costs
Property, Plant and Equipment [Line Items]
Estimated useful life					4 years