Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Net loss	$ (24,712)	$ (22,518)
Adjustments to reconcile net loss to net cash provided by operating activities:
Stock compensation	3,054	2,172
Depreciation and amortization expense	12,736	10,460
Impairment of Commercial Cyber Solutions goodwill	0	6,980
Non-cash interest expense	5,356	4,700
Gain on disposal of assets	0	(3,447)
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	0	(3,568)
Write-off of deferred financing costs	0	340
Deferred taxes	5,109	1,974
Changes in assets and liabilities, net of effects of acquisitions:
Receivables	2,329	11,113
Inventories, net	(3,582)	(1,165)
Prepaid expenses	(219)	(1,224)
Accounts payable	3,949	(3,071)
Accrued expenses	3,983	3,849
Other non-current assets/liabilities	(1,857)	(92)
Net cash provided by operating activities	6,146	13,639
Cash flows from investing activities:
Acquisitions, net of cash acquired	236,091	2,504
Purchases of property and equipment	(8,085)	(8,388)
Proceeds from sale of assets	0	16,226
Net cash (used in) provided by investing activities	(244,176)	5,334
Cash flows from financing activities:
Proceeds from stock issuance, net	84,586	0
Proceeds from issuance of term note	135,000	0
Repayment of term note	(1,688)	0
Issuance cost of term loan and revolving credit facility	4,689	0
Proceeds from revolver	10,000	0
Repayment of revolver	10,000	0
Proceeds from option and warrant exercises, net	216	2,305
Net cash provided by financing activities	213,425	2,305
Net (decrease) increase in cash and cash equivalents	(24,605)	21,278
Cash and cash equivalents at beginning of period	41,871	21,227
Cash and cash equivalents at end of period	17,266
Supplemental disclosure of cash flow information:
Cash paid for interest	6,622	3,858
Cash paid for taxes	$ 15	$ 89