Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 61,715	$ 65,913
Short-term investments	498	1,245
Accounts receivable, net	58,131	56,697
Other receivables	26,006	26,311
Inventories, net	11,591	11,544
Contract assets	9,142	8,030
Prepaid expenses and other current assets	4,502	4,532
Total current assets	171,585	174,272
Deferred tax assets, net	33,860	33,043
Property and equipment, net	25,727	26,015
Operating lease right-of-use assets	4,499	3,774
Intangibles, net	17,690	17,879
Goodwill	1,095	1,095
Other long-term assets	1,202	1,427
Total assets	255,658	257,505
Current liabilities
Accounts payable	19,878	17,056
Accrued expenses and other liabilities	30,216	35,043
Current maturities of long-term debt, net	1,500	1,500
Operating lease liabilities, current	1,035	904
Deferred revenue	3,100	4,427
Total current liabilities	55,729	58,930
Long-term debt, less current maturities	17,891	18,241
Operating lease liabilities, long-term	5,063	4,576
Deferred revenue, long-term	1,207	0
Total liabilities	79,890	81,747
Commitments and contingencies (Note 11)
Stockholders’ Equity
Preferred Stock: $0.01 par; 3,000 shares authorized, none outstanding	0	0
Common Stock: $0.01 par; 300,000 shares authorized; 170,580 and 170,042 issued and outstanding as of March 31, 2022 and December 31, 2021, respectively	1,706	1,701
Additional paid-in capital	353,406	351,079
Accumulated deficit	(178,658)	(176,337)
Accumulated other comprehensive loss	(686)	(685)
Total stockholders' equity	175,768	175,758
Total liabilities and stockholders’ equity	$ 255,658	$ 257,505