CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 15,173	$ 12,821
Accounts receivable	58,129	60,427
Inventories	7,515	7,474
Other current assets	6,954	5,153
Total current assets	87,771	85,875
Property and equipment (net of accumulated depreciation of $44,024 and $40,530, respectively.	40,411	36,504
Intangible assets, net	72,751	74,165
Goodwill	147,019	147,019
Other assets	1,320	891
Total assets	349,272	344,454
Current liabilities
Accounts payable	13,048	10,450
Accrued compensation	10,164	9,482
Accrued expenses and other liabilities	9,884	7,550
Short-term portion of capital leases and car loans	5,988	5,239
Short-term portion of loans	4,219	3,750
Total current liabilities	43,303	36,471
Long-term liabilities
Long-term portion of capital leases and car loans	6,515	5,303
Long-term portion of loans, net	65,208	66,616
Revolving credit facility, net	19,114	24,516
Long-term pharma contract liability	522	283
Deferred income tax liability, net	6,594	6,688
Total long-term liabilities	97,953	103,406
Total liabilities	141,256	139,877
Commitments and contingencies
Redeemable convertible preferred stock
Series A Redeemable Convertible Preferred Stock, $0.001 par value, (50,000,000 shares authorized; 6,864,000 shares issued and outstanding)	35,471	32,615
Stockholders' equity
Common stock, $0.001 par value, (250,000,000 shares authorized; 80,568,453 and 80,462,574 shares issued and outstanding, respectively)	81	80
Additional paid-in capital	232,039	230,030
Accumulated other comprehensive income	499	274
Accumulated deficit	(60,074)	(58,422)
Total stockholders’ equity	172,545	171,962
Total liabilities, redeemable convertible preferred stock and stockholders' equity	$ 349,272	$ 344,454