Property and Equipment

12 Months Ended

Dec. 31, 2017

Property Plant And Equipment [Abstract]

Property and Equipment

(7) Property and Equipment

Property and Equipment

Property and equipment are stated at cost. Repairs and maintenance are charged to expense when incurred.

Depreciation on property and equipment is calculated using the straight-line method over the estimated useful lives of the assets, generally two to ten years. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful life or the lease term.

	December 31,			December 31,
	2017			2016
Office furniture and fixtures	$	1,551		$	1,168
Software		3,068			2,146
Equipment		4,390			4,071
Leasehold improvements		1,720			1,617
Gross property and equipment		10,729			9,002
Less accumulated depreciation and amortization		(6,493	)		(5,432	)
Property and equipment, net	$	4,236		$	3,570

Leases

Future minimum lease payments under non-cancelable operating leases are as follows:

	Operating
Year ending December 31:	Leases
2018	$	992
2019		1,023
2020		848
2021		804
2022		828
Thereafter		1,070
Total minimum lease payments	$	5,565

Rent expense on the operating leases was as follows:

	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
	2017		2016		2015
Rent expense	$	1,312	$	1,022	$	1,045