Condensed Consolidated Balance Sheets-Unaudited (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 6,125	$ 7,183
Restricted cash (Note E)	1,500	1,500
Accounts receivable, less allowances of $45 and $42, respectively	3,442	3,237
Inventories, net (Note C)	4,551	4,629
Prepaid expenses and other current assets	307	405
Total Current Assets	15,925	16,954
Property, Plant and Equipment
Land	633	633
Buildings and improvements	3,908	3,908
Machinery and equipment	16,152	15,980
Gross property, plant and equipment	20,693	20,521
Less: accumulated depreciation	(16,956)	(16,535)
Net property, plant, and equipment	3,737	3,986
Other assets, net	814	323
Total Assets	20,476	21,263
LIABILITIES AND STOCKHOLDERS' EQUITY
Note payable to bank (Note E)	1,500	1,181
Accounts payable	2,117	1,978
Accrued compensation and commissions expense	982	992
Accrued restructuring expense	350	70
Accrued warranty expense	366	22
Other accrued expenses	295	265
Total Current Liabilities	5,610	4,508
Stockholders' Equity:
Common stock, $0.01 par value - 10,000,000 shares authorized; 2,674,448 shares issued and 2,594,732 shares outstanding at June 30, 2014 and 2,674,530 shares issued and 2,594,784 shares outstanding at December 31, 2013	27	27
Additional paid-in capital	28,779	28,593
Accumulated deficit	(13,416)	(11,338)
Treasury stock: 79,716 and 79,664 shares held in treasury at cost at June 30, 2014 and December 31, 2013, respectively	(572)	(572)
Accumulated other comprehensive income	48	45
Total Stockholders' Equity	14,866	16,755
Total Liabilities and Stockholders' Equity	$ 20,476	$ 21,263