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Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2014 | Dec. 31, 2013
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 1,960 | $ 2,860
Trade accounts receivable less allowances of $62 and $84, respectively | 3,170 | 3,348
Retainage receivable | 582 | 577
Inventories, net | 2,127 | 2,510
Costs and estimated earnings in excess of billings | 255 | 145
Prepaid and other current assets | 620 | 1,207
Assets held for sale |  | 130
Total current assets | 8,714 | 10,777
Property and equipment, net | 516 | 536
Intangible assets, net | 41 | 55
Collateralized assets | 1,000 | 1,000
Other assets | 172 | 440
Total assets | 10,443 | 12,808
Current liabilities: |  |
Accounts payable | 2,482 | 3,707
Accrued liabilities | 971 | 1,218
Deferred revenue | 71 | 71
Billings in excess of costs and estimated earnings | 355 | 764
Credit line borrowings | 1,109 |
Current maturities of long-term debt | 61 | 59
Total current liabilities | 5,049 | 5,819
Other liabilities | 51 | 54
Long-term debt | 218 | 4,011
Total liabilities | 5,318 | 9,884
Common stock, par value $0.0001 per share: |  |
Issued and outstanding: 78,154,330 in 2014 and 51,421,937 in 2013 | 8 | 5
Additional paid-in capital | 91,708 | 85,442
Accumulated other comprehensive income | 464 | 462
Accumulated deficit | (87,055) | (82,985)
Total shareholders' equity | 5,125 | 2,924
Total liabilities and shareholders' equity | $ 10,443 | $ 12,808

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