CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 3,734	$ 7,038
Restricted cash	601	711
Accounts receivable, net	4,825	4,586
Costs and estimated earnings in excess of billings on uncompleted contracts	2,695	1,699
Inventories, net	4,072	4,163
Prepaid expenses and deposits	1,038	635
Total current assets	16,965	18,832
Property and equipment, net	4,735	4,803
Goodwill	635	635
Intangible assets, net	27	68
Other assets	1,082	1,118
Total Assets	23,444	25,456
Current liabilities:
Accounts payable	1,062	710
Accrued liabilities	1,031	1,142
Billings in excess of costs and estimated earnings on uncompleted contracts	3,995	5,176
Customer deposits	3,232	4,081
Current portion of retirement obligations	480	535
Current portion of pension settlement obligation	356
Current portion of long-term debt	199	2,362
Total current liabilities	10,355	14,006
Pension and retirement obligations, net of current portion	4,839	40,076
Pension settlement obligation, net of current portion	5,268
Long-term debt, net of current portion	1,975	0
Deferred rent obligation	1,653	2,077
Total liabilities	$ 24,090	$ 56,159
Commitments and contingencies (Notes 4, 5, 6 and 8)
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	53,434	54,500
Common stock in treasury, at cost, 264,350 and 352,467 shares, respectively	(3,532)	(4,709)
Accumulated deficit	(50,432)	(49,157)
Accumulated other comprehensive loss	(2,404)	(33,625)
Total stockholders' deficit	(646)	(30,703)
Total liabilities and stockholders' deficit	$ 23,444	$ 25,456