CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 7,038	$ 3,376
Restricted cash	711	1,020
Marketable securities		229
Accounts receivable, net	4,586	5,552
Costs and estimated earnings in excess of billings on uncompleted contracts	1,699	2,391
Inventories, net	4,163	3,025
Prepaid expenses and deposits	635	568
Total current assets	18,832	16,161
Property and equipment, net	4,803	7,405
Goodwill	635	635
Intangible assets, net	68	115
Other assets	1,118	1,386
Total assets	25,456	25,702
Current liabilities:
Accounts payable	710	1,433
Accrued liabilities	1,142	1,183
Billings in excess of costs and estimated earnings on uncompleted contracts	5,176	3,358
Customer deposits	4,081	2,157
Current portion of retirement obligations	535	531
Current portion of long-term debt	2,362	2,995
Total current liabilities	14,006	11,657
Pension and retirement obligations, net of current portion	40,076	23,567
Long-term debt, net of current portion	0	2,362
Deferred rent obligation	2,077	1,514
Total liabilities	56,159	39,100
Commitments and contingencies (Notes 5, 6, 7 and 9)
Stockholders' deficit:
Preferred stock, no par value: 10,000,000 shares authorized; no shares outstanding
Common stock, $0.20 par value: 30,000,000 shares authorized;11,441,666 shares issued	2,288	2,288
Additional paid-in-capital	54,500	54,484
Common stock in treasury, at cost, 352,467 shares	(4,709)	(4,709)
Accumulated deficit	(49,157)	(47,852)
Accumulated other comprehensive loss	(33,625)	(17,609)
Total stockholders' deficit	(30,703)	(13,398)
Total liabilities and stockholders' deficit	$ 25,456	$ 25,702