Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating activities:
Net loss	$ (1,019,000)	$ (1,000,000)
Reconciliation of net loss to cash used in operating activities:
Depreciation and amortization expense	748,000	686,000
Amortization of debt issuance costs	5,000	3,000
Compensation costs - stock options	5,000	10,000
Deferred rental income	(22,000)	(22,000)
Provision for losses on accounts receivable	3,000	3,000
Change in operating assets and liabilities:
Accounts receivable	2,360,000	827,000
Inventories	(146,000)	(26,000)
Prepaid expenses	(16,000)	25,000
Refundable income taxes	(6,000)	18,000
Other assets	(12,000)	6,000
Accounts payable	(3,047,000)	(1,534,000)
Accrued payroll and other compensation	150,000	21,000
Accrued income taxes	(48,000)
Other accrued taxes	(152,000)	(79,000)
Deferred revenues	482,000	399,000
Other liabilities and accrued expenses	134,000	96,000
Net cash used in operating activities	(581,000)	(567,000)
Investing activities:
Capital expenditures	(460,000)	(494,000)
Net cash used in investing activities	(460,000)	(494,000)
Financing activities:
Borrowings under line of credit facilities		510,000
Payments of debt issuance costs	(32,000)
Principal payments on term loan facility	(131,000)
Principal payments on capital lease obligations	(16,000)	(15,000)
Net cash (used in) provided by financing activities	(179,000)	495,000
Decrease in cash and cash equivalents	(1,220,000)	(566,000)
Cash and cash equivalents at beginning of period	2,299,000	1,814,000
Cash and cash equivalents at end of period	1,079,000	1,248,000
Supplemental disclosure of cash flow information:
Capital expenditures included in accounts payable	70,000	403,000
Significant non-cash investing and financing activities:
Capital lease obligations incurred	630,000
Cash paid during the period for interest	170,000	87,000
Cash paid during the period for income taxes	$ 75,000	$ 5,000