Condensed Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating activities:
Net loss	$ (1,010)	$ (660)
Reconciliation of net loss to cash provided by operating activities:
Depreciation and amortization expense	1,509	1,379
Amortization of debt issuance costs	10	6
Compensation costs - stock options	7	16
Deferred rental income	(43)	(43)
Provision for losses on accounts receivable	6	17
Change in operating assets and liabilities:
Accounts receivable	1,444	(1,711)
Inventories	(232)	(129)
Prepaid expenses	152	88
Refundable income taxes	(1)	27
Other assets	(18)	1
Accounts payable	(2,703)	365
Accrued payroll and other compensation	284	245
Accrued income taxes	(48)
Other accrued taxes	(223)	(38)
Deferred revenues	1,451	1,296
Other liabilities and accrued expenses	133	105
Net cash provided by operating activities	718	964
Investing activities:
Capital expenditures	(1,027)	(1,863)
Cash released from restriction	79
Net cash used in investing activities	(948)	(1,863)
Financing activities:
Borrowings under line of credit facilities		1,025
Payments of debt issuance costs	(42)
Principal payments on term loan facility	(265)
Principal payments on capital lease obligations	(87)	(30)
Net cash provided by (used in) financing activities	(394)	995
Increase (decrease) in cash and cash equivalents	(624)	96
Cash and cash equivalents at beginning of period	2,299	1,814
Cash and cash equivalents at end of period	1,675	1,910
Supplemental disclosure of cash flow information:
Capital expenditures included in accounts payable		110
Significant non-cash investing and financing activities:
Capital lease obligations incurred	630	68
Cash paid during the period for interest	343	179
Cash paid during the period for income taxes	$ 104	$ 20