Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 2,309	$ 2,483
Accounts receivable, net	5,611	5,630
Inventories, net	2,097	2,285
Prepaid expenses and other current assets	754	626
Total current assets	10,771	11,024
Property and equipment, net	1,256	1,347
Intangible assets, net	535	559
Goodwill	2,066	2,066
Other assets	115	119
TOTAL ASSETS	14,743	15,115
Current liabilities:
Accounts payable and accrued expenses	3,448	3,100
Deferred revenue	3,525	3,637
Current portion of pension liability	372	278
Current portion of term loan	280	280
Capital lease obligations	13	20
Total current liabilities	7,638	7,315
Pension liability	3,979	3,873
Deferred revenue	1,101	1,198
Term Loan	327	397
Other liabilities	356	351
Total liabilities	13,401	13,134
Commitments and contingencies
Shareholders' equity:
Preferred stock, par value $1.00, without designation Authorized - 1,000,000 shares, Issued - none
Common stock, par value $.01 Authorized - 150,000,000 shares Issued and outstanding - 17,419,622 at March 31, 2013 and 17,135,239 at December 31, 2012	174	171
Additional paid-in capital	84,834	84,539
Accumulated deficit	(81,321)	(80,404)
Accumulated other comprehensive loss	(2,345)	(2,325)
Total shareholders' equity	1,342	1,981
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 14,743	$ 15,115