Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 1,596	$ 2,860
Trade accounts receivable less allowances of $55 and $84, respectively	3,817	3,348
Retainage receivable	472	577
Inventories, net	2,589	2,510
Costs and estimated earnings in excess of billings	129	145
Prepaid and other current assets	1,311	1,207
Assets held for sale		130
Total current assets	9,914	10,777
Property and equipment, net	531	536
Intangible assets, net	27	55
Collateralized assets	1,000	1,000
Other assets	116	440
Total assets	11,588	12,808
Current liabilities:
Accounts payable	3,624	3,707
Accrued liabilities	1,147	1,218
Deferred revenue	183	71
Billings in excess of costs and estimated earnings	22	764
Credit line borrowings	824
Current maturities of long-term debt	62	59
Total current liabilities	5,862	5,819
Other liabilities	49	54
Long-term debt	202	4,011
Total liabilities	6,113	9,884
STOCKHOLDERS' EQUITY
Common stock, par value $0.0001 per share: Authorized: 15,000,000 shares in 2014 and 2013. Issued and outstanding: 8,012,461 at June 30, 2014 and 5,142,194 at December 31, 2013 (post-reverse split)	1	1
Additional paid-in capital	92,682	85,446
Accumulated other comprehensive income	469	462
Accumulated deficit	(87,677)	(82,985)
Total stockholders' equity	5,475	2,924
Total liabilities and stockholders' equity	$ 11,588	$ 12,808