Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Operating activities:
Net loss	$ (1,219)	$ (700)
Reconciliation of net loss to cash used in operating activities:
Depreciation and amortization expense	638	428
Compensation costs - stock options	17	21
Deferred rental income	(23)
Provision for losses on accounts receivable	3	4
Change in operating assets and liabilities, net of effect of acquisition:
Accounts receivable	789	2,197
Inventories	(85)	(164)
Prepaid expenses	(18)	(51)
Refundable income taxes	(10)
Other assets, net	2
Accounts payable	(1,263)	(2,850)
Accrued payroll and other compensation	(69)	6
Accrued income taxes	(8)	(1)
Other accrued taxes	(109)	(80)
Deferred revenues	322	294
Other liabilities and accrued expenses	(63)	47
Net cash used in operating activities	(1,096)	(849)
Investing activities:
Capital expenditures	(1,876)	(1,972)
Net cash used in investing activities	(1,876)	(1,972)
Financing activities:
Proceeds from subsidiary private placement offering		350
Borrowings under line of credit facility	1,200
Principal payments on capital lease obligations	(14)	(13)
Contribution to paid-in capital		17
Net cash provided by financing activities	1,186	354
Decrease in cash and cash equivalents	(1,786)	(2,467)
Cash and cash equivalents at beginning of year	4,329	9,798
Cash and cash equivalents at end of year	2,543	7,331
Significant non-cash operating and investing activities:
Capital expenditures included in accounts payable	884	906
Cash paid during the year for interest	$ 38	$ 5