Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 155	$ (761)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities, net of business acquisition:
Depreciation	3,585	1,586
Amortization of intangibles	2,026	93
Amortization of debt issue costs	182
Stock based compensation – options, restricted stock and warrants	703	401
Provision for bad debts	2,663	602
Changes in assets and liabilities, net of business acquisition:
(Increase) in accounts receivable, net of write-offs	(3,809)	(1,610)
(Increase) decrease in inventories	(225)	21
Decrease (increase) in prepaid expenses	(401)	(42)
Decrease in other current assets		1
(Decrease) in accounts payable and other liabilities	2,180	(1,078)
Net cash provided by (used in) operating activities	7,059	(787)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment	(1,001)	(842)
Net cash used in investing activities	(1,001)	(842)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayment of revolving credit facility	(10,044)
Repayment of capital lease obligations/loans	(1,379)	(921)
Issuance of common stock for the exercise of options, warrants and ESPP shares, net of transaction expenses	1,201	109
Net cash used in financing activities	(10,222)	(812)
Net change in cash and cash equivalents	(4,164)	(2,441)
Cash and cash equivalent, beginning of period	23,420	33,689
Cash and cash equivalents, end of period	19,256	31,248
Supplemental disclosure of cash flow information:
Interest paid	1,416	212
Income taxes paid	207	5
Supplemental disclosure of non-cash investing and financing information:
Equipment acquired under capital lease/loan obligations	$ 173	$ 2,525