Discontinued Operations - Assets and Liabilities Held For Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Disposal Group, Including Discontinued Operation, Assets, Current [Abstract]
Assets held for sale	$ 13,855	$ 6,541
Luna Labs | Held-for-sale
Disposal Group, Including Discontinued Operation, Assets, Current [Abstract]
Accounts receivable, net	3,951	3,023
Inventory, net	265	535
Contract assets	3,824	2,906
Prepaid expenses and other current	47	76
Property and equipment, net (1)	349	391
Intangible assets, net (1)	154	115
Operating lease ROU asset (1)	4,989	5,297
Other assets (1)	276	657
Assets held for sale	13,855	13,000
Disposal Group, Including Discontinued Operation, Liabilities, Current [Abstract]
Accounts payable	1,040	1,542
Accrued liabilities	1,870	1,434
Contract liabilities	875	397
Current portion of operating lease ROU liability	377	346
Long-term portion of operating lease ROU liability (1)	4,929	5,214
Liabilities associated with assets held for sale	$ 9,091	$ 8,933