Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014
ASSETS
Cash and cash equivalents	$ 2,295	$ 3,517
Marketable securities		3,579
Trade accounts receivable, less allowances of $10 and $32, respectively	1,767	1,925
Inventories	2,148	2,136
Prepaid expenses and other current assets	566	528
Total current assets	6,776	11,685
Machinery and equipment	6,999	6,992
Leasehold improvements	591	587
Furniture and fixtures	152	159
	7,742	7,738
Less-accumulated depreciation and amortization	(6,257)	(6,174)
Total property and equipment, net	1,485	1,564
Capitalized software, net	24	32
Other assets	423	403
Total assets	8,708	13,684
Liabilities
Accounts payable	1,197	1,273
Deferred revenue	115	44
Accrued liabilities	1,340	1,540
Accrued compensation	180	103
Short-term debt		3,500
Total current liabilities	2,832	6,460
Deferred lease obligations	1,142	1,215
Total liabilities	3,974	7,675
Commitments and Contingencies
Shareholders’ Equity
Common stock, $0.10 par value; 100,000,000 shares authorized; 8,393,981 and 8,393,981 shares issued and outstanding, respectively	839	839
Additional paid in capital	50,321	50,157
Accumulated deficit	(45,864)	(44,355)
Cumulative other comprehensive loss	(562)	(632)
Total shareholders' equity	4,734	6,009
Total liabilities and shareholders' equity	$ 8,708	$ 13,684