Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating activities:
Net loss	$ (660)	$ (1,356)
Reconciliation of net loss to net cash provided by operating activities:
Depreciation and amortization expense	1,379	1,233
Compensation costs - stock options	16	31
Deferred rental income	(43)	(45)
Provision for losses on accounts receivable	17	6
Change in operating assets and liabilities, net of effect of acquisition:
Accounts receivable	(1,711)	(1,113)
Inventories	(129)	(144)
Prepaid expenses	88	88
Refundable income taxes	27	(12)
Other assets	7	(18)
Accounts payable	365	739
Accrued payroll and other compensation	245	177
Accrued income taxes		(8)
Other accrued taxes	(38)	16
Deferred revenues	1,296	896
Other liabilities and accrued expenses	105	(134)
Net cash provided by operating activities	964	356
Investing activities:
Capital expenditures	(1,863)	(5,135)
Net cash used in investing activities	(1,863)	(5,135)
Financing activities:
Borrowings under line of credit facilities	1,025	7,800
Repayment under line of credit facilities		(5,000)
Principal payments on capital lease obligations	(30)	(28)
Net cash provided by financing activities	995	2,772
Increase (decrease) in cash and cash equivalents	96	(2,007)
Cash and cash equivalents at beginning of period	1,814	4,329
Cash and cash equivalents at end of period	1,910	2,322
Supplemental disclosure of cash flow information:
Capital expenditures included in accounts payable	110	451
Capital lease obligation incurred	68
Cash paid during the period for interest	179	87
Cash paid during the period for income taxes	$ 20	$ 44