CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities
Net income (loss)	$ (441,000)	$ 36,000
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Depreciation and amortization	515,000	521,000
Share-based compensation expense	41,000	9,000
Gain from insurance proceeds	(38,000)	0
Amortization of loan fees included in interest expense	27,000	32,000
Change in assets and liabilities
Receivables	(1,975,000)	(1,123,000)
Receivables from related parties	(24,000)	47,000
Inventories	723,000	(398,000)
Income tax receivable/payable	2,000	(6,000)
Other assets	(160,000)	(150,000)
Accounts payable	(152,000)	886,000
Payables and accrued expenses to related parties	0	(124,000)
Other current liabilities	(202,000)	(153,000)
Net cash used in operating activities	(1,684,000)	(423,000)
Cash flows from investing activities
Proceeds from insurance claim, net	38,000	0
Purchases of property and equipment	(179,000)	(104,000)
Net cash used in investing activities	(141,000)	(104,000)
Cash flows from financing activities
Loan fees capitalized	(22,200)	(94,000)
Change in checks in excess of bank	469,000	(108,000)
Payments on long-term debt	(94,000)	0
Payments on related party debt	(516,000)	(16,000)
Payments on capital lease obligations	(85,000)	(72,000)
Proceeds from revolving line of credit, net	1,498,000	856,000
Net cash from financing activities	1,250,000	566,000
Net change in cash and cash equivalents	(575,000)	39,000
Cash and cash equivalents at beginning of period	1,044,000	841,000
Cash and cash equivalents at end of period	469,000	880,000
Supplemental disclosure of cash flow information:
Cash paid for interest	123,000	199,000
Cash paid for taxes	0	14,000
Supplemental disclosure of noncash investing and financing activities:
Equipment additions financed by debt	$ 88,000	$ 0