Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities:
Net income (loss)	$ 75	$ (939)
Reconciliation of net income (loss) to net cash provided by operating activities:
Depreciation and amortization expense	2,093	1,836
Compensation costs - stock options	22	43
Deferred rental income	(66)	(66)
Provision for losses on accounts receivable	30	10
Change in operating assets and liabilities, net of effect of acquisition:
Accounts receivable	(4,188)	(502)
Inventories	(33)	(37)
Prepaid expenses	(91)	(98)
Refundable income taxes	33	(21)
Other assets	11	8
Accounts payable	2,091	(329)
Accrued payroll and other compensation	127	215
Accrued income taxes	21	(8)
Other accrued taxes	(4)	(47)
Deferred revenues	872	492
Other liabilities and accrued expenses	228	11
Net cash provided by operating activities	1,221	568
Investing activities:
Capital expenditures	(2,408)	(6,814)
Net cash used in investing activities	(2,408)	(6,814)
Financing activities:
Borrowings under line of credit facilities	1,025	8,800
Repayment under line of credit facilities		(5,000)
Principal payments on capital lease obligations	(48)	(42)
Net cash provided by financing activities	977	3,758
Decrease in cash and cash equivalents	(210)	(2,488)
Cash and cash equivalents at beginning of period	1,814	4,329
Cash and cash equivalents at end of period	1,604	1,841
Supplemental disclosure of cash flow information:
Capital expenditures included in accounts payable	95	166
Capital lease obligation incurred	68
Cash paid during the period for interest	273	164
Cash paid during the period for income taxes	$ 25	$ 65