Consolidated Statements of Cash Flows (unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ (1,062,000)	$ 85,000
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Bad debt expense	1,849,000	2,044,000
Amortization of intangibles	283,000	200,000
Depreciation and amortization of property and equipment	4,971,000	3,938,000
Amortization of debt issue costs		66,000
Stock based compensation – options and restricted stock	1,588,000	566,000
Stock based compensation – warrants	319,000	173,000
Changes in assets and liabilities, net:
Accounts receivable, net of write-offs	(2,930,000)	12,000
Inventories	(351,000)	(582,000)
Other current assets	(409,000)	93,000
Other assets	12,000	39,000
Accounts payable and other liabilities	2,000	1,830,000
NET CASH PROVIDED BY OPERATING ACTIVITIES	4,272,000	8,464,000
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition, net of cash		(5,829,000)
Purchases of property and equipment	(1,682,000)	(2,719,000)
NET CASH USED IN INVESTING ACTIVITIES	(1,682,000)	(8,548,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Payments on credit facility, net		(4,282,000)
Repayment of capital lease obligations	(2,912,000)	(2,632,000)
Issuance of common stock for cash, net of transaction expense		34,430,000
Issuance of common stock for the exercise of options, warrants and ESPP shares	599,000	2,100,000
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(2,313,000)	29,616,000
NET INCREASE IN CASH AND CASH EQUIVALENTS	277,000	29,532,000
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	33,689,000	4,834,000
CASH AND CASH EQUIVALENTS, END OF PERIOD	33,966,000	34,366,000
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest paid	672,000	770,000
Income taxes paid	20,000	170,000
NON-CASH INVESTING AND FINANCING ACTIVITIES
Equipment leased under capital lease obligations and equipment loans	$ 4,377,000	$ 4,824,000