Nature of Business and Summary of Significant Accounting Policies Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) segment reporting_unit shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of segments | segment	1
Number of reporting units | reporting_unit	1
Right of use assets – operating leases	$ 332	$ 1,746
Operating lease, liability	1,289
Contract assets	467	1,089
Capitalized Contract Cost, Amortization	2,200	1,900
Inventory, net	$ 184	$ 350
Warrant shares (in shares) | shares	414,286	1,339,286
Foreign currency transaction gain (loss), before tax	$ (406)	$ (260)	$ (55)
Hale Capital and ESW, Inc.
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrant shares (in shares) | shares		1,239,286
Property, Plant and Equipment | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property and equipment estimated useful lives	1 year
Property, Plant and Equipment | Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property and equipment estimated useful lives	5 years
Prepaid Expenses and Other Current Assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract assets	$ 745	$ 380
Other Noncurrent Assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract with Customer, Asset, Net, Noncurrent	$ 276	$ 138