Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
OPERATING ACTIVITIES
Net income	$ 4,303,000	$ 2,041,000
Net loss from discontinued operations	0	(213,000)
Net income from continuing operations	4,303,000	2,254,000
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization	1,683,000	1,499,000
Impairment loss	127,000	0
Change in fair value of warrant liability	0	434,000
Stock-based compensation	92,000	73,000
Amortization of debt issuance costs and discount	179,000	38,000
Provision for bad debt expense	0	33,000
Changes in operating assets and liabilities
Accounts receivable	(10,661,000)	(844,000)
Inventories	118,000	68,000
Prepaid expense and other current assets	122,000	(27,000)
Other assets	69,000	(9,000)
Accounts payable and accrued liabilities	1,233,000	333,000
Other liabilities	84,000	0
Net cash (used in) provided by operating activities - continuing operations	(2,651,000)	3,852,000
Net cash provided by (used in) operating activities - discontinued operations	5,000	(359,000)
Net cash (used in) provided by - operating activities	(2,646,000)	3,493,000
INVESTING ACTIVITIES
Purchases of property and equipment	(311,000)	(1,089,000)
Proceeds from disposals of property and equipment	155,000
Proceeds from insurance claims	0	52,000
Net cash used in investing activities - continuing operations	(156,000)	(1,037,000)
Net cash provided by investing activities - discontinued operations	741,000	(15,000)
Net cash provided by investing activities	585,000	(1,052,000)
FINANCING ACTIVITIES
Net line of credit borrowings	2,016,000	(1,787,000)
Repayment of long-term debt	(11,000)	(17,000)
Repayment of note	(200,000)	0
Other financing	(1,000)	(15,000)
Net cash provided by (used in) financing activities	1,804,000	(1,819,000)
Net (Decrease) Increase in Cash and Cash Equivalents	(257,000)	622,000
Cash and Cash Equivalents, beginning of period	257,000	391,000
Cash and Cash Equivalents, end of period	0	1,013,000
Supplemental Cash Flow Information:
Cash paid for interest	595,000	437,000
Supplemental Disclosure of Non-cash Investing and Financing Activities:
Non-cash proceeds from revolving credit facilities	$ 39,000	$ 40,000