Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 24,016	$ 28,791
Accounts receivable (net of allowance for doubtful accounts of $636 and $703, respectively)	15,043	20,047
Inventories:
Finished goods, net	13,457	10,949
Work in process	870	345
Raw materials and components, net	2,204	3,891
Total inventories, net	16,531	15,185
Recoverable income taxes	5,021	2,207
Other current assets	5,429	5,873
Total current assets	66,040	72,103
Property, plant and equipment (net of accumulated depreciation of $5,713 and $4,781, respectively)	14,079	14,721
Note receivable	2,855	2,497
Intangible assets, net	1,074	895
Goodwill	1,066	1,123
Other assets	3,977	4,105
Total assets	89,091	95,444
Current liabilities:
Accounts payable	10,798	12,844
Accrued expenses	4,174	6,236
Customer deposits/deferred revenue	3,142	3,474
Income tax payable	726	888
Total current liabilities	18,840	23,442
Deferred revenue	2,413	3,008
Deferred income taxes	766	790
Other accrued expenses, net of current portion	1,716	1,748
Total liabilities	23,735	28,988
Stockholders’ equity:
Common stock, par value $.01 per share; Authorized 25,000 shares; issued 17,152 and 16,869 shares at September 30, 2014 and December 31, 2013, respectively; 14,421 and 14,138 shares outstanding at September 30, 2014 and December 31, 2013, respectively	167	167
Additional paid-in capital	38,524	38,231
Accumulated other comprehensive income:
Foreign currency translation	(2,072)	(959)
Postretirement benefit obligations	190	190
Retained earnings	46,786	47,066
	83,595	84,695
Less 2,731 of common shares in treasury, at cost at September 30, 2014 and December 31, 2013	(18,239)	(18,239)
Total stockholders’ equity	65,356	66,456
Total liabilities and stockholders’ equity	$ 89,091	$ 95,444