Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating activities:
Net loss	$ (1,356)	$ (838)
Reconciliation of net loss to cash provided by operating activities:
Depreciation and amortization expense	1,233	983
Compensation costs - stock options	31	$ 41
Deferred rental income	(45)
Provision for losses on accounts receivable	$ 6	$ 16
Gain from disposal of property and equipment		(2)
Change in operating assets and liabilities, net of effect of acquisition:
Accounts receivable	$ (1,113)	1,134
Inventories	(144)	(277)
Prepaid expenses	88	$ 26
Refundable income taxes	(12)
Other assets, net	(18)	$ 14
Accounts payable	739	(1,890)
Accrued payroll and other compensation	177	278
Accrued income taxes	(8)	9
Other accrued taxes	16	(10)
Deferred revenues	896	843
Other liabilities and accrued expenses	(134)	144
Net cash provided by operating activities	356	471
Investing activities:
Capital expenditures	$ (5,135)	(3,537)
Proceeds from disposal of property and equipment		14
Net cash used in investing activities	$ (5,135)	(3,523)
Financing activities:
Proceeds from subsidiary private placement offering		$ 400
Borrowings under line of credit facilities	$ 7,800
Repayment under line of credit facilities	(5,000)
Principal payments on capital lease obligations	$ (28)	$ (26)
Contribution to paid-in capital		17
Net cash provided by financing activities	$ 2,772	391
Decrease in cash and cash equivalents	(2,007)	(2,661)
Cash and cash equivalents at beginning of year	4,329	9,798
Cash and cash equivalents at end of year	2,322	7,137
Supplemental disclosure of cash flow information:
Capital expenditures included in accounts payable	451	205
Cash paid during the year for interest	$ 87	$ 10