CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 120,233	$ 126,562
Accounts receivable, net of reserve of $211 and $116, respectively	57,734	59,844
Inventories, net of obsolescence reserve of $773 and $861, respectively	2,097	1,247
Prepaid expenses	4,898	3,329
Other current assets	2,773	732
Total current assets	187,735	191,714
Property and equipment, net of accumulated depreciation and amortization of $34,826 and $34,057, respectively	14,823	15,141
Operating lease right-of-use assets	705	852
Goodwill	17,922	17,922
Intangible assets, net	21,613	19,199
Other assets	1,223	1,253
Total assets	244,021	246,081
Current liabilities
Accounts payable and other accrued liabilities	35,223	34,548
Accrued compensation and benefits	8,702	6,557
Contract liabilities	7,036	6,381
Finance lease obligations – short-term	1,493	1,461
Operating lease obligations – short-term	517	564
Other current liabilities	2,082	1,430
Total current liabilities	55,053	50,941
Finance lease obligations – long-term	12,457	12,840
Operating lease liabilities – long-term	275	388
Deferred income taxes	735	723
Other liabilities	440	935
Total liabilities	68,960	65,827
Commitments and contingencies (Note 14)
Stockholders’ equity
Common stock, $0.001 par value, 250,000,000 shares authorized, 67,867,500 shares and 66,767,450 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively	106	105
Additional paid-in capital	376,913	367,153
Accumulated other comprehensive income (loss)	2	(27)
Accumulated deficit	(201,960)	(186,977)
Total stockholders’ equity	175,061	180,254
Total liabilities and stockholders’ equity	$ 244,021	$ 246,081