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Notes and Line of Credit (Details Narrative) $ / shares in Units, $ in Thousands							1 Months Ended	3 Months Ended
	Apr. 21, 2021 USD ($)	Apr. 17, 2020 USD ($)	Mar. 23, 2020	Nov. 20, 2019 USD ($) $ / shares	Mar. 22, 2019 USD ($) Number	Nov. 16, 2018 USD ($)	Jul. 31, 2014 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 23, 2020 USD ($)	Sep. 08, 2020 USD ($)
Interest expense								$ 139	$ 124
2% Secured Convertible Promissory Note Due on May 15, 2024 [Member] \| Bradford T. Whitmore [Member]
Principal amount				$ 2,000
Fixed annual interest rate				2.00%
Payment frequency				interest is payable semi-annually on the 15th day of May and November
Date of first payment				May 15, 2020
Debt conversion price (in dollars per share) \| $ / shares				$ 0.20
Share price (in dollars per share) \| $ / shares				$ 0.32
Debt discount				$ 1,200				836		$ 903
Principal balance								1,164		$ 1,097
Debt balance								2,000
Promissory Note (PPP) [Member] \| Libertyville [Member]
Principal amount		$ 952
Fixed annual interest rate		1.00%
Payment frequency		eighteen equal monthly installments
Date of first payment		Nov. 17, 2020
Debt balance								0
Term Loan [Member] \| Beachcorp, LLC [Member]
Debt balance								500
Asset-Based Revolving Loan Facility [Member] \| Beachcorp, LLC [Member]
Debt balance								3,365
Related Party Credit Facilities [Member]
Interest expense								131	111
Accrued interest expense								36	$ 20
Available borrowing amount								$ 388
Business Loan Agreement [Member] \| Term Loan [Member] \| Beachcorp, LLC [Member]
Maximum borrowing capacity						$ 500
Fixed annual interest rate						8.25%
Maturity date						Dec. 31, 2020
Ownership percentage						63.00%
Business Loan Agreement [Member] \| Asset-Based Revolving Loan Facility [Member] \| Beachcorp, LLC [Member]
Basis spread variable interest rate						3.00%
Variable interest rate basis						Prime rate
Maximum borrowing capacity						$ 2,000
Facility, expiration date						Mar. 31, 2020
Business Loan Agreement [Member] \| Asset-Based Revolving Loan Facility [Member] \| Beachcorp, LLC [Member] \| Greater than [Member]
Fixed annual interest rate						8.25%
First Amendment [Member] \| Term Loan and The Revolver Facility [Member] \| Beachcorp, LLC [Member]
Maturity date			Mar. 31, 2021
Second Amendment [Member] \| Asset-Based Revolving Loan Facility [Member] \| Beachcorp, LLC [Member]
Maximum borrowing capacity												$ 2,750
Third Amendment [Member] \| Asset-Based Revolving Loan Facility [Member] \| Beachcorp, LLC [Member]
Maximum borrowing capacity											$ 4,000
Fourth Amendment [Member] \| Term Loan [Member] \| Beachcorp, LLC [Member]
Maximum borrowing capacity	$ 1,000
Fixed annual interest rate	5.25%
Maturity date	Mar. 31, 2022
Fourth Amendment [Member] \| Asset-Based Revolving Loan Facility [Member] \| Beachcorp, LLC [Member]
Basis spread variable interest rate	2.00%
Variable interest rate basis	Prime rate
Maximum borrowing capacity	$ 6,000
Facility, expiration date	Mar. 31, 2023
Letter of Credit [Member]
Letter of credit and related promissory note							$ 30
Basis spread variable interest rate							1.00%
Variable interest rate basis							Prime rate
Line of Credit [Member] \| New Business Loan Agreement [Member]
Basis spread variable interest rate					1.00%
Variable interest rate basis					Prime rate
Maximum borrowing capacity					$ 500
Borrowing capacity as percentage of accounts receivable					75.00%
Borrowing capacity as multiple of accounts receivable \| Number					2
Minimum amount of cash on hand before advance is given					$ 500
Facility, expiration date					May 04, 2021