Details of Certain Consolidated Balance Sheet Accounts (Tables)

12 Months Ended

Dec. 31, 2021

Prepaid expenses and other current assets (in thousands):


	December 31,
	2021		2020
Prepaid software and licenses	$	756	$	653
Prepaid insurance		611		561
Other prepaid expenses		198		136
Deferred commissions		822		715
Other		117		107
	$	2,504	$	2,172

Accounts receivable and contract asset (in thousands):


	December 31,
	2021			2020
Accounts receivable	$	16,167		$	12,459
Contract asset		41			536
Allowance for potential credit losses		(74	)		(74	)
	$	16,134		$	12,921

Other assets (in thousands):

Property and equipment, net (in thousands):


	December 31,
	2021			2020
Deployed equipment	$	35,882		$	31,761
Computer equipment		1,745			1,550
Software		1,314			1,314
Furniture and fixtures		295			217
Leasehold improvements		30			306
Vehicles		239			124
Construction in progress		4,818			1,506
	$	44,323		$	36,778
Accumulated depreciation and amortization		(26,914	)		(21,432	)
	$	17,409		$	15,346

Accrued expenses and other current liabilities (in thousands):

Other liabilities (long-term) (in thousand):


	December 31,
	2021		2020
Operating lease liabilities	$	2,013	$	461
Contingent consideration liability		1,500		170
	$	3,513	$	631