CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net loss	$ (595)	$ (2,454)
Adjustments to reconcile net loss to net cash used in operating activities:
Impairment of long-lived assets	0	2,156
Depreciation and amortization	1,583	1,773
Share-based compensation	610	554
Bad debt expense	61	1,134
Equity in net loss of joint venture	16	179
Abandonment of patents	0	80
Forgiveness of debt	0	(10)
Gain on disposal of property, plant and equipment	(30)	(198)
Changes in assets and liabilities:
Accounts receivable	2,039	(2,460)
Inventory	(22)	0
Costs and estimated earnings in excess of billings on uncompleted contracts	(3,300)	(2,463)
Prepaid expenses and other current assets	47	(59)
Other assets	250	34
Accounts payable and accrued liabilities	(1,501)	1,723
Deferred revenues	(44)	(216)
Billings in excess of costs and estimated earnings on uncompleted contracts	(552)	(1,014)
Net cash used in operating activities	(1,438)	(1,241)
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	120	263
Payments received on notes receivable	13	55
Cash paid for patents	0	(35)
Cash paid for exclusive product rights	0	(125)
Cash paid for deposits, net	(413)	(166)
Purchases of property, plant and equipment	(776)	(1,519)
Cash distribution received from joint venture	500	0
Net cash (used in) provided by investing activities	(556)	(1,527)
Cash flows from financing activities:
Proceeds from long-term debt	1,021	1,170
Deferred financing costs on bank term loan	(45)	0
Proceeds from issuance of common stock, net	7,628	0
Cash paid for purchase of our common stock	0	(48)
Principal payments on long-term debt	(2,873)	(1,810)
Net cash provided by financing activities	5,731	(688)
(Decrease) increase in cash and cash equivalents	3,737	(3,456)
Cash and cash equivalents, beginning of year	1,523	4,979
Cash and cash equivalents, end of year	5,260	1,523
Supplemental schedule of operating, investing and financing activities:
Cash paid for interest	170	139
Prepaid insurance purchased on credit	0	385
Property, plant and equipment acquired via debt	3,170	1,200
Shares of common stock surrendered to settle employee payroll tax liabilities	$ 61	$ 40