Other Accrued Liabilities (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($) Assessment	Dec. 31, 2020 USD ($)	Jun. 30, 2020 USD ($)
Other Accrued Liabilities [Abstract]
Accrued warranty, current	$ 67	$ 87	$ 119
Accrued compensation, including commissions and vacation	1,336	891
Accrued state sales, use and other taxes	3,154	3,105
Accrued professional fees and other accrued liabilities	544	607
Total other accrued liabilities	5,101	$ 4,690
Income Tax Examination, Penalties and Interest Accrued [Abstract]
Interest amount	$ 171
Tax Period from March 2014 through February 2020 [Member]
Income Tax Examination, Penalties and Interest Accrued [Abstract]
Number of assessments | Assessment	2
Estimated tax positions subject to audit	$ 1,484
Tax Period from June 2015 through March 2018 [Member]
Income Tax Examination, Penalties and Interest Accrued [Abstract]
Assessment amount	$ 720