Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 11,162	$ 8,313
Trade accounts receivable, less allowance for doubtful accounts of $149 in 2017 and $180 in 2016	10,443	10,726
Other receivables	16	21
Inventories	7,515	6,728
Prepaid income taxes	769	498
Prepaid expenses, other	1,003	876
Total current assets	30,908	27,162
Property, plant, and equipment, net of accumulated depreciation of $9,078 in 2017 and $8,537 in 2016	5,394	5,457
Goodwill	7,337	7,180
Intangible assets, net	7,661	7,831
Other assets	118	118
Deferred income taxes	296	700
Total assets	51,714	48,448
Current liabilities:
Current maturities of long-term notes payable	82	83
Accounts payable	4,906	2,905
Accrued compensation and related expenses	3,070	3,948
Other accrued expenses	1,019	947
Accrued product warranties	204	209
Accrued income taxes	1,680	999
Dividends payable	704	644
Deferred revenue	1,430	980
Total current liabilities	13,095	10,715
Line of credit	1,200
Notes payable	61	80
Deferred income taxes	1,026	1,068
Accrued income taxes	134	134
Total noncurrent liabilities	2,421	1,282
Total liabilities	15,516	11,997
Shareholders’ equity:
Capital stock – undesignated. Authorized 3,000,000 shares; none issued and outstanding in 2017 and December 31,
Common stock – $0.10 par value. Authorized 22,000,000 shares; issued and outstanding 5,867,127 shares in 2017 and 5,854,413 shares in 2016	585	585
Additional paid-in capital	8,982	8,617
Retained earnings	32,410	33,144
Accumulated other comprehensive loss	(5,779)	(5,895)
Total shareholders’ equity	36,198	36,451
Total liabilities and shareholders' equity	$ 51,714	$ 48,448